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authorIngo Molnar <mingo@elte.hu>2008-07-18 13:53:16 -0400
committerIngo Molnar <mingo@elte.hu>2008-07-18 13:53:16 -0400
commit9b610fda0df5d0f0b0c64242e37441ad1b384aac (patch)
tree0ea14b15f2e6546f37fe18d8ac3dc83077ec0e55 /arch/x86
parentb8f8c3cf0a4ac0632ec3f0e15e9dc0c29de917af (diff)
parent5b664cb235e97afbf34db9c4d77f08ebd725335e (diff)
Merge branch 'linus' into timers/nohz
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig299
-rw-r--r--arch/x86/Kconfig.cpu6
-rw-r--r--arch/x86/Kconfig.debug66
-rw-r--r--arch/x86/Makefile27
-rw-r--r--arch/x86/boot/a20.c8
-rw-r--r--arch/x86/boot/compressed/head_64.S5
-rw-r--r--arch/x86/boot/compressed/misc.c59
-rw-r--r--arch/x86/boot/compressed/relocs.c198
-rw-r--r--arch/x86/boot/cpu.c2
-rw-r--r--arch/x86/boot/main.c4
-rw-r--r--arch/x86/boot/memory.c3
-rw-r--r--arch/x86/boot/pmjump.S4
-rw-r--r--arch/x86/boot/video-vga.c3
-rw-r--r--arch/x86/configs/i386_defconfig1711
-rw-r--r--arch/x86/configs/x86_64_defconfig1735
-rw-r--r--arch/x86/ia32/ia32entry.S68
-rw-r--r--arch/x86/kernel/.gitignore1
-rw-r--r--arch/x86/kernel/Makefile29
-rw-r--r--arch/x86/kernel/acpi/boot.c458
-rw-r--r--arch/x86/kernel/acpi/processor.c6
-rw-r--r--arch/x86/kernel/acpi/realmode/wakeup.S38
-rw-r--r--arch/x86/kernel/acpi/realmode/wakeup.h5
-rw-r--r--arch/x86/kernel/acpi/sleep.c40
-rw-r--r--arch/x86/kernel/alternative.c22
-rw-r--r--arch/x86/kernel/amd_iommu.c962
-rw-r--r--arch/x86/kernel/amd_iommu_init.c875
-rw-r--r--arch/x86/kernel/aperture_64.c313
-rw-r--r--arch/x86/kernel/apic_32.c127
-rw-r--r--arch/x86/kernel/apic_64.c68
-rw-r--r--arch/x86/kernel/apm_32.c37
-rw-r--r--arch/x86/kernel/asm-offsets_32.c2
-rw-r--r--arch/x86/kernel/asm-offsets_64.c7
-rw-r--r--arch/x86/kernel/cpu/Makefile4
-rw-r--r--arch/x86/kernel/cpu/addon_cpuid_features.c17
-rw-r--r--arch/x86/kernel/cpu/amd.c42
-rw-r--r--arch/x86/kernel/cpu/amd_64.c222
-rw-r--r--arch/x86/kernel/cpu/bugs.c27
-rw-r--r--arch/x86/kernel/cpu/bugs_64.c (renamed from arch/x86/kernel/bugs_64.c)0
-rw-r--r--arch/x86/kernel/cpu/centaur_64.c35
-rw-r--r--arch/x86/kernel/cpu/common.c2
-rw-r--r--arch/x86/kernel/cpu/common_64.c681
-rw-r--r--arch/x86/kernel/cpu/cpu.h5
-rw-r--r--arch/x86/kernel/cpu/cpufreq/cpufreq-nforce2.c44
-rw-r--r--arch/x86/kernel/cpu/intel.c4
-rw-r--r--arch/x86/kernel/cpu/intel_64.c95
-rw-r--r--arch/x86/kernel/cpu/intel_cacheinfo.c1
-rw-r--r--arch/x86/kernel/cpu/mcheck/k7.c36
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_64.c34
-rw-r--r--arch/x86/kernel/cpu/mcheck/non-fatal.c2
-rw-r--r--arch/x86/kernel/cpu/mcheck/p4.c90
-rw-r--r--arch/x86/kernel/cpu/mtrr/generic.c38
-rw-r--r--arch/x86/kernel/cpu/mtrr/main.c905
-rw-r--r--arch/x86/kernel/cpu/mtrr/mtrr.h3
-rw-r--r--arch/x86/kernel/cpu/perfctr-watchdog.c210
-rw-r--r--arch/x86/kernel/cpuid.c27
-rw-r--r--arch/x86/kernel/e820.c1390
-rw-r--r--arch/x86/kernel/e820_32.c775
-rw-r--r--arch/x86/kernel/e820_64.c952
-rw-r--r--arch/x86/kernel/early-quirks.c41
-rw-r--r--arch/x86/kernel/early_printk.c2
-rw-r--r--arch/x86/kernel/efi.c67
-rw-r--r--arch/x86/kernel/efi_32.c8
-rw-r--r--arch/x86/kernel/efi_64.c8
-rw-r--r--arch/x86/kernel/entry_32.S84
-rw-r--r--arch/x86/kernel/entry_64.S170
-rw-r--r--arch/x86/kernel/ftrace.c141
-rw-r--r--arch/x86/kernel/genapic_64.c2
-rw-r--r--arch/x86/kernel/genx2apic_uv_x.c214
-rw-r--r--arch/x86/kernel/geode_32.c5
-rw-r--r--arch/x86/kernel/head.c55
-rw-r--r--arch/x86/kernel/head32.c27
-rw-r--r--arch/x86/kernel/head64.c96
-rw-r--r--arch/x86/kernel/head_32.S15
-rw-r--r--arch/x86/kernel/head_64.S101
-rw-r--r--arch/x86/kernel/hpet.c63
-rw-r--r--arch/x86/kernel/i386_ksyms_32.c9
-rw-r--r--arch/x86/kernel/i387.c44
-rw-r--r--arch/x86/kernel/i8259.c (renamed from arch/x86/kernel/i8259_32.c)136
-rw-r--r--arch/x86/kernel/i8259_64.c512
-rw-r--r--arch/x86/kernel/io_apic_32.c678
-rw-r--r--arch/x86/kernel/io_apic_64.c282
-rw-r--r--arch/x86/kernel/ipi.c1
-rw-r--r--arch/x86/kernel/irq_32.c254
-rw-r--r--arch/x86/kernel/irq_64.c28
-rw-r--r--arch/x86/kernel/irqinit_32.c114
-rw-r--r--arch/x86/kernel/irqinit_64.c221
-rw-r--r--arch/x86/kernel/kvmclock.c89
-rw-r--r--arch/x86/kernel/ldt.c6
-rw-r--r--arch/x86/kernel/machine_kexec_32.c8
-rw-r--r--arch/x86/kernel/machine_kexec_64.c6
-rw-r--r--arch/x86/kernel/mfgpt_32.c2
-rw-r--r--arch/x86/kernel/microcode.c35
-rw-r--r--arch/x86/kernel/mmconf-fam10h_64.c1
-rw-r--r--arch/x86/kernel/mpparse.c847
-rw-r--r--arch/x86/kernel/msr.c16
-rw-r--r--arch/x86/kernel/nmi.c (renamed from arch/x86/kernel/nmi_32.c)228
-rw-r--r--arch/x86/kernel/nmi_64.c482
-rw-r--r--arch/x86/kernel/numaq_32.c32
-rw-r--r--arch/x86/kernel/paravirt.c36
-rw-r--r--arch/x86/kernel/paravirt_patch_32.c4
-rw-r--r--arch/x86/kernel/paravirt_patch_64.c9
-rw-r--r--arch/x86/kernel/pci-calgary_64.c4
-rw-r--r--arch/x86/kernel/pci-dma.c36
-rw-r--r--arch/x86/kernel/pci-gart_64.c120
-rw-r--r--arch/x86/kernel/pci-swiotlb_64.c2
-rw-r--r--arch/x86/kernel/probe_roms_32.c166
-rw-r--r--arch/x86/kernel/process.c220
-rw-r--r--arch/x86/kernel/process_32.c74
-rw-r--r--arch/x86/kernel/process_64.c94
-rw-r--r--arch/x86/kernel/ptrace.c4
-rw-r--r--arch/x86/kernel/pvclock.c141
-rw-r--r--arch/x86/kernel/quirks.c60
-rw-r--r--arch/x86/kernel/reboot.c18
-rw-r--r--arch/x86/kernel/reboot_fixups_32.c4
-rw-r--r--arch/x86/kernel/rtc.c34
-rw-r--r--arch/x86/kernel/setup.c929
-rw-r--r--arch/x86/kernel/setup64.c287
-rw-r--r--arch/x86/kernel/setup_32.c958
-rw-r--r--arch/x86/kernel/setup_64.c1194
-rw-r--r--arch/x86/kernel/setup_percpu.c399
-rw-r--r--arch/x86/kernel/smp.c158
-rw-r--r--arch/x86/kernel/smpboot.c222
-rw-r--r--arch/x86/kernel/smpcommon.c56
-rw-r--r--arch/x86/kernel/stacktrace.c2
-rw-r--r--arch/x86/kernel/summit_32.c2
-rw-r--r--arch/x86/kernel/sys_i386_32.c64
-rw-r--r--arch/x86/kernel/time_32.c6
-rw-r--r--arch/x86/kernel/time_64.c16
-rw-r--r--arch/x86/kernel/tlb_32.c2
-rw-r--r--arch/x86/kernel/tlb_64.c7
-rw-r--r--arch/x86/kernel/tlb_uv.c792
-rw-r--r--arch/x86/kernel/trampoline.c2
-rw-r--r--arch/x86/kernel/traps_32.c191
-rw-r--r--arch/x86/kernel/traps_64.c541
-rw-r--r--arch/x86/kernel/tsc.c535
-rw-r--r--arch/x86/kernel/tsc_32.c453
-rw-r--r--arch/x86/kernel/tsc_64.c357
-rw-r--r--arch/x86/kernel/visws_quirks.c709
-rw-r--r--arch/x86/kernel/vmi_32.c6
-rw-r--r--arch/x86/kernel/vmiclock_32.c7
-rw-r--r--arch/x86/kernel/vmlinux_32.lds.S15
-rw-r--r--arch/x86/kernel/vmlinux_64.lds.S18
-rw-r--r--arch/x86/kernel/vsmp_64.c3
-rw-r--r--arch/x86/kernel/vsyscall_64.c19
-rw-r--r--arch/x86/kernel/x8664_ksyms_64.c16
-rw-r--r--arch/x86/kvm/i8254.c23
-rw-r--r--arch/x86/kvm/irq.c6
-rw-r--r--arch/x86/kvm/irq.h2
-rw-r--r--arch/x86/kvm/lapic.c1
-rw-r--r--arch/x86/kvm/mmu.c22
-rw-r--r--arch/x86/kvm/paging_tmpl.h2
-rw-r--r--arch/x86/kvm/svm.c2
-rw-r--r--arch/x86/kvm/vmx.c26
-rw-r--r--arch/x86/kvm/x86.c95
-rw-r--r--arch/x86/kvm/x86_emulate.c3
-rw-r--r--arch/x86/lguest/Kconfig2
-rw-r--r--arch/x86/lguest/boot.c16
-rw-r--r--arch/x86/lib/Makefile5
-rw-r--r--arch/x86/lib/copy_user_64.S432
-rw-r--r--arch/x86/lib/copy_user_nocache_64.S286
-rw-r--r--arch/x86/lib/delay.c (renamed from arch/x86/lib/delay_32.c)69
-rw-r--r--arch/x86/lib/delay_64.c63
-rw-r--r--arch/x86/lib/getuser.S (renamed from arch/x86/lib/getuser_64.S)87
-rw-r--r--arch/x86/lib/getuser_32.S78
-rw-r--r--arch/x86/lib/msr-on-cpu.c8
-rw-r--r--arch/x86/lib/putuser.S (renamed from arch/x86/lib/putuser_32.S)73
-rw-r--r--arch/x86/lib/putuser_64.S106
-rw-r--r--arch/x86/lib/thunk_32.S47
-rw-r--r--arch/x86/lib/thunk_64.S19
-rw-r--r--arch/x86/lib/usercopy_64.c23
-rw-r--r--arch/x86/mach-default/setup.c74
-rw-r--r--arch/x86/mach-es7000/Makefile1
-rw-r--r--arch/x86/mach-es7000/es7000plat.c49
-rw-r--r--arch/x86/mach-generic/Makefile10
-rw-r--r--arch/x86/mach-generic/bigsmp.c4
-rw-r--r--arch/x86/mach-generic/numaq.c41
-rw-r--r--arch/x86/mach-generic/probe.c15
-rw-r--r--arch/x86/mach-visws/Makefile8
-rw-r--r--arch/x86/mach-visws/mpparse.c88
-rw-r--r--arch/x86/mach-visws/reboot.c55
-rw-r--r--arch/x86/mach-visws/setup.c183
-rw-r--r--arch/x86/mach-visws/traps.c69
-rw-r--r--arch/x86/mach-visws/visws_apic.c297
-rw-r--r--arch/x86/mach-voyager/setup.c37
-rw-r--r--arch/x86/mach-voyager/voyager_smp.c112
-rw-r--r--arch/x86/math-emu/fpu_entry.c13
-rw-r--r--arch/x86/math-emu/reg_constant.c8
-rw-r--r--arch/x86/mm/Makefile8
-rw-r--r--arch/x86/mm/discontig_32.c285
-rw-r--r--arch/x86/mm/dump_pagetables.c2
-rw-r--r--arch/x86/mm/fault.c115
-rw-r--r--arch/x86/mm/init_32.c527
-rw-r--r--arch/x86/mm/init_64.c571
-rw-r--r--arch/x86/mm/ioremap.c65
-rw-r--r--arch/x86/mm/k8topology_64.c21
-rw-r--r--arch/x86/mm/kmmio.c510
-rw-r--r--arch/x86/mm/mmio-mod.c515
-rw-r--r--arch/x86/mm/numa_64.c93
-rw-r--r--arch/x86/mm/pageattr-test.c21
-rw-r--r--arch/x86/mm/pageattr.c67
-rw-r--r--arch/x86/mm/pat.c395
-rw-r--r--arch/x86/mm/pf_in.c489
-rw-r--r--arch/x86/mm/pf_in.h39
-rw-r--r--arch/x86/mm/pgtable.c190
-rw-r--r--arch/x86/mm/pgtable_32.c56
-rw-r--r--arch/x86/mm/srat_32.c (renamed from arch/x86/kernel/srat_32.c)223
-rw-r--r--arch/x86/mm/srat_64.c48
-rw-r--r--arch/x86/mm/testmmiotrace.c71
-rw-r--r--arch/x86/oprofile/nmi_int.c13
-rw-r--r--arch/x86/pci/Makefile22
-rw-r--r--arch/x86/pci/Makefile_3224
-rw-r--r--arch/x86/pci/Makefile_6417
-rw-r--r--arch/x86/pci/acpi.c21
-rw-r--r--arch/x86/pci/amd_bus.c (renamed from arch/x86/pci/k8-bus_64.c)108
-rw-r--r--arch/x86/pci/common.c34
-rw-r--r--arch/x86/pci/direct.c25
-rw-r--r--arch/x86/pci/early.c60
-rw-r--r--arch/x86/pci/i386.c8
-rw-r--r--arch/x86/pci/init.c7
-rw-r--r--arch/x86/pci/irq.c393
-rw-r--r--arch/x86/pci/legacy.c16
-rw-r--r--arch/x86/pci/mmconfig-shared.c2
-rw-r--r--arch/x86/pci/mp_bus_to_node.c23
-rw-r--r--arch/x86/pci/numa.c33
-rw-r--r--arch/x86/pci/olpc.c5
-rw-r--r--arch/x86/pci/pci.h16
-rw-r--r--arch/x86/pci/visws.c28
-rw-r--r--arch/x86/power/hibernate_64.c2
-rw-r--r--arch/x86/vdso/vclock_gettime.c15
-rw-r--r--arch/x86/vdso/vdso32-setup.c11
-rw-r--r--arch/x86/vdso/vgetcpu.c3
-rw-r--r--arch/x86/vdso/vma.c2
-rw-r--r--arch/x86/xen/Kconfig13
-rw-r--r--arch/x86/xen/Makefile2
-rw-r--r--arch/x86/xen/enlighten.c232
-rw-r--r--arch/x86/xen/manage.c143
-rw-r--r--arch/x86/xen/mmu.c345
-rw-r--r--arch/x86/xen/mmu.h34
-rw-r--r--arch/x86/xen/multicalls.c40
-rw-r--r--arch/x86/xen/multicalls.h12
-rw-r--r--arch/x86/xen/setup.c30
-rw-r--r--arch/x86/xen/smp.c143
-rw-r--r--arch/x86/xen/suspend.c45
-rw-r--r--arch/x86/xen/time.c162
-rw-r--r--arch/x86/xen/xen-head.S11
-rw-r--r--arch/x86/xen/xen-ops.h20
246 files changed, 21779 insertions, 14163 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index dcbec34154cf..96e0c2ebc388 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,6 +23,8 @@ config X86
23 select HAVE_OPROFILE 23 select HAVE_OPROFILE
24 select HAVE_KPROBES 24 select HAVE_KPROBES
25 select HAVE_KRETPROBES 25 select HAVE_KRETPROBES
26 select HAVE_DYNAMIC_FTRACE
27 select HAVE_FTRACE
26 select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64) 28 select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
27 select HAVE_ARCH_KGDB if !X86_VOYAGER 29 select HAVE_ARCH_KGDB if !X86_VOYAGER
28 30
@@ -121,7 +123,7 @@ config ARCH_HAS_CACHE_LINE_SIZE
121 def_bool y 123 def_bool y
122 124
123config HAVE_SETUP_PER_CPU_AREA 125config HAVE_SETUP_PER_CPU_AREA
124 def_bool X86_64 || (X86_SMP && !X86_VOYAGER) 126 def_bool X86_64_SMP || (X86_SMP && !X86_VOYAGER)
125 127
126config HAVE_CPUMASK_OF_CPU_MAP 128config HAVE_CPUMASK_OF_CPU_MAP
127 def_bool X86_64_SMP 129 def_bool X86_64_SMP
@@ -168,6 +170,7 @@ config GENERIC_PENDING_IRQ
168config X86_SMP 170config X86_SMP
169 bool 171 bool
170 depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64) 172 depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
173 select USE_GENERIC_SMP_HELPERS
171 default y 174 default y
172 175
173config X86_32_SMP 176config X86_32_SMP
@@ -181,12 +184,12 @@ config X86_64_SMP
181config X86_HT 184config X86_HT
182 bool 185 bool
183 depends on SMP 186 depends on SMP
184 depends on (X86_32 && !(X86_VISWS || X86_VOYAGER)) || X86_64 187 depends on (X86_32 && !X86_VOYAGER) || X86_64
185 default y 188 default y
186 189
187config X86_BIOS_REBOOT 190config X86_BIOS_REBOOT
188 bool 191 bool
189 depends on !X86_VISWS && !X86_VOYAGER 192 depends on !X86_VOYAGER
190 default y 193 default y
191 194
192config X86_TRAMPOLINE 195config X86_TRAMPOLINE
@@ -230,6 +233,26 @@ config SMP
230 233
231 If you don't know what to do here, say N. 234 If you don't know what to do here, say N.
232 235
236config X86_FIND_SMP_CONFIG
237 def_bool y
238 depends on X86_MPPARSE || X86_VOYAGER
239
240if ACPI
241config X86_MPPARSE
242 def_bool y
243 bool "Enable MPS table"
244 depends on X86_LOCAL_APIC
245 help
246 For old smp systems that do not have proper acpi support. Newer systems
247 (esp with 64bit cpus) with acpi support, MADT and DSDT will override it
248endif
249
250if !ACPI
251config X86_MPPARSE
252 def_bool y
253 depends on X86_LOCAL_APIC
254endif
255
233choice 256choice
234 prompt "Subarchitecture Type" 257 prompt "Subarchitecture Type"
235 default X86_PC 258 default X86_PC
@@ -251,7 +274,7 @@ config X86_ELAN
251 274
252config X86_VOYAGER 275config X86_VOYAGER
253 bool "Voyager (NCR)" 276 bool "Voyager (NCR)"
254 depends on X86_32 && (SMP || BROKEN) 277 depends on X86_32 && (SMP || BROKEN) && !PCI
255 help 278 help
256 Voyager is an MCA-based 32-way capable SMP architecture proprietary 279 Voyager is an MCA-based 32-way capable SMP architecture proprietary
257 to NCR Corp. Machine classes 345x/35xx/4100/51xx are Voyager-based. 280 to NCR Corp. Machine classes 345x/35xx/4100/51xx are Voyager-based.
@@ -261,16 +284,27 @@ config X86_VOYAGER
261 If you do not specifically know you have a Voyager based machine, 284 If you do not specifically know you have a Voyager based machine,
262 say N here, otherwise the kernel you build will not be bootable. 285 say N here, otherwise the kernel you build will not be bootable.
263 286
287config X86_GENERICARCH
288 bool "Generic architecture"
289 depends on X86_32
290 help
291 This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default
292 subarchitectures. It is intended for a generic binary kernel.
293 if you select them all, kernel will probe it one by one. and will
294 fallback to default.
295
296if X86_GENERICARCH
297
264config X86_NUMAQ 298config X86_NUMAQ
265 bool "NUMAQ (IBM/Sequent)" 299 bool "NUMAQ (IBM/Sequent)"
266 depends on SMP && X86_32 300 depends on SMP && X86_32 && PCI && X86_MPPARSE
267 select NUMA 301 select NUMA
268 help 302 help
269 This option is used for getting Linux to run on a (IBM/Sequent) NUMA 303 This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)
270 multiquad box. This changes the way that processors are bootstrapped, 304 NUMA multiquad box. This changes the way that processors are
271 and uses Clustered Logical APIC addressing mode instead of Flat Logical. 305 bootstrapped, and uses Clustered Logical APIC addressing mode instead
272 You will need a new lynxer.elf file to flash your firmware with - send 306 of Flat Logical. You will need a new lynxer.elf file to flash your
273 email to <Martin.Bligh@us.ibm.com>. 307 firmware with - send email to <Martin.Bligh@us.ibm.com>.
274 308
275config X86_SUMMIT 309config X86_SUMMIT
276 bool "Summit/EXA (IBM x440)" 310 bool "Summit/EXA (IBM x440)"
@@ -279,46 +313,21 @@ config X86_SUMMIT
279 This option is needed for IBM systems that use the Summit/EXA chipset. 313 This option is needed for IBM systems that use the Summit/EXA chipset.
280 In particular, it is needed for the x440. 314 In particular, it is needed for the x440.
281 315
282 If you don't have one of these computers, you should say N here. 316config X86_ES7000
283 If you want to build a NUMA kernel, you must select ACPI. 317 bool "Support for Unisys ES7000 IA32 series"
318 depends on X86_32 && SMP
319 help
320 Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
321 supposed to run on an IA32-based Unisys ES7000 system.
284 322
285config X86_BIGSMP 323config X86_BIGSMP
286 bool "Support for other sub-arch SMP systems with more than 8 CPUs" 324 bool "Support for big SMP systems with more than 8 CPUs"
287 depends on X86_32 && SMP 325 depends on X86_32 && SMP
288 help 326 help
289 This option is needed for the systems that have more than 8 CPUs 327 This option is needed for the systems that have more than 8 CPUs
290 and if the system is not of any sub-arch type above. 328 and if the system is not of any sub-arch type above.
291 329
292 If you don't have such a system, you should say N here. 330endif
293
294config X86_VISWS
295 bool "SGI 320/540 (Visual Workstation)"
296 depends on X86_32
297 help
298 The SGI Visual Workstation series is an IA32-based workstation
299 based on SGI systems chips with some legacy PC hardware attached.
300
301 Say Y here to create a kernel to run on the SGI 320 or 540.
302
303 A kernel compiled for the Visual Workstation will not run on PCs
304 and vice versa. See <file:Documentation/sgi-visws.txt> for details.
305
306config X86_GENERICARCH
307 bool "Generic architecture (Summit, bigsmp, ES7000, default)"
308 depends on X86_32
309 help
310 This option compiles in the Summit, bigsmp, ES7000, default subarchitectures.
311 It is intended for a generic binary kernel.
312 If you want a NUMA kernel, select ACPI. We need SRAT for NUMA.
313
314config X86_ES7000
315 bool "Support for Unisys ES7000 IA32 series"
316 depends on X86_32 && SMP
317 help
318 Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
319 supposed to run on an IA32-based Unisys ES7000 system.
320 Only choose this option if you have such a system, otherwise you
321 should say N here.
322 331
323config X86_RDC321X 332config X86_RDC321X
324 bool "RDC R-321x SoC" 333 bool "RDC R-321x SoC"
@@ -337,7 +346,7 @@ config X86_RDC321X
337config X86_VSMP 346config X86_VSMP
338 bool "Support for ScaleMP vSMP" 347 bool "Support for ScaleMP vSMP"
339 select PARAVIRT 348 select PARAVIRT
340 depends on X86_64 349 depends on X86_64 && PCI
341 help 350 help
342 Support for ScaleMP vSMP systems. Say 'Y' here if this kernel is 351 Support for ScaleMP vSMP systems. Say 'Y' here if this kernel is
343 supposed to run on these EM64T-based machines. Only choose this option 352 supposed to run on these EM64T-based machines. Only choose this option
@@ -345,6 +354,18 @@ config X86_VSMP
345 354
346endchoice 355endchoice
347 356
357config X86_VISWS
358 bool "SGI 320/540 (Visual Workstation)"
359 depends on X86_32 && PCI && !X86_VOYAGER && X86_MPPARSE && PCI_GODIRECT
360 help
361 The SGI Visual Workstation series is an IA32-based workstation
362 based on SGI systems chips with some legacy PC hardware attached.
363
364 Say Y here to create a kernel to run on the SGI 320 or 540.
365
366 A kernel compiled for the Visual Workstation will run on general
367 PCs as well. See <file:Documentation/sgi-visws.txt> for details.
368
348config SCHED_NO_NO_OMIT_FRAME_POINTER 369config SCHED_NO_NO_OMIT_FRAME_POINTER
349 def_bool y 370 def_bool y
350 prompt "Single-depth WCHAN output" 371 prompt "Single-depth WCHAN output"
@@ -373,7 +394,7 @@ config VMI
373 bool "VMI Guest support" 394 bool "VMI Guest support"
374 select PARAVIRT 395 select PARAVIRT
375 depends on X86_32 396 depends on X86_32
376 depends on !(X86_VISWS || X86_VOYAGER) 397 depends on !X86_VOYAGER
377 help 398 help
378 VMI provides a paravirtualized interface to the VMware ESX server 399 VMI provides a paravirtualized interface to the VMware ESX server
379 (it could be used by other hypervisors in theory too, but is not 400 (it could be used by other hypervisors in theory too, but is not
@@ -383,7 +404,8 @@ config VMI
383config KVM_CLOCK 404config KVM_CLOCK
384 bool "KVM paravirtualized clock" 405 bool "KVM paravirtualized clock"
385 select PARAVIRT 406 select PARAVIRT
386 depends on !(X86_VISWS || X86_VOYAGER) 407 select PARAVIRT_CLOCK
408 depends on !X86_VOYAGER
387 help 409 help
388 Turning on this option will allow you to run a paravirtualized clock 410 Turning on this option will allow you to run a paravirtualized clock
389 when running over the KVM hypervisor. Instead of relying on a PIT 411 when running over the KVM hypervisor. Instead of relying on a PIT
@@ -394,7 +416,7 @@ config KVM_CLOCK
394config KVM_GUEST 416config KVM_GUEST
395 bool "KVM Guest support" 417 bool "KVM Guest support"
396 select PARAVIRT 418 select PARAVIRT
397 depends on !(X86_VISWS || X86_VOYAGER) 419 depends on !X86_VOYAGER
398 help 420 help
399 This option enables various optimizations for running under the KVM 421 This option enables various optimizations for running under the KVM
400 hypervisor. 422 hypervisor.
@@ -403,60 +425,45 @@ source "arch/x86/lguest/Kconfig"
403 425
404config PARAVIRT 426config PARAVIRT
405 bool "Enable paravirtualization code" 427 bool "Enable paravirtualization code"
406 depends on !(X86_VISWS || X86_VOYAGER) 428 depends on !X86_VOYAGER
407 help 429 help
408 This changes the kernel so it can modify itself when it is run 430 This changes the kernel so it can modify itself when it is run
409 under a hypervisor, potentially improving performance significantly 431 under a hypervisor, potentially improving performance significantly
410 over full virtualization. However, when run without a hypervisor 432 over full virtualization. However, when run without a hypervisor
411 the kernel is theoretically slower and slightly larger. 433 the kernel is theoretically slower and slightly larger.
412 434
435config PARAVIRT_CLOCK
436 bool
437 default n
438
413endif 439endif
414 440
415config MEMTEST_BOOTPARAM 441config PARAVIRT_DEBUG
416 bool "Memtest boot parameter" 442 bool "paravirt-ops debugging"
443 depends on PARAVIRT && DEBUG_KERNEL
444 help
445 Enable to debug paravirt_ops internals. Specifically, BUG if
446 a paravirt_op is missing when it is called.
447
448config MEMTEST
449 bool "Memtest"
417 depends on X86_64 450 depends on X86_64
418 default y
419 help 451 help
420 This option adds a kernel parameter 'memtest', which allows memtest 452 This option adds a kernel parameter 'memtest', which allows memtest
421 to be disabled at boot. If this option is selected, memtest 453 to be set.
422 functionality can be disabled with memtest=0 on the kernel 454 memtest=0, mean disabled; -- default
423 command line. The purpose of this option is to allow a single 455 memtest=1, mean do 1 test pattern;
424 kernel image to be distributed with memtest built in, but not 456 ...
425 necessarily enabled. 457 memtest=4, mean do 4 test patterns.
426 458 If you are unsure how to answer this question, answer N.
427 If you are unsure how to answer this question, answer Y.
428
429config MEMTEST_BOOTPARAM_VALUE
430 int "Memtest boot parameter default value (0-4)"
431 depends on MEMTEST_BOOTPARAM
432 range 0 4
433 default 0
434 help
435 This option sets the default value for the kernel parameter
436 'memtest', which allows memtest to be disabled at boot. If this
437 option is set to 0 (zero), the memtest kernel parameter will
438 default to 0, disabling memtest at bootup. If this option is
439 set to 4, the memtest kernel parameter will default to 4,
440 enabling memtest at bootup, and use that as pattern number.
441
442 If you are unsure how to answer this question, answer 0.
443
444config ACPI_SRAT
445 def_bool y
446 depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
447 select ACPI_NUMA
448
449config HAVE_ARCH_PARSE_SRAT
450 def_bool y
451 depends on ACPI_SRAT
452 459
453config X86_SUMMIT_NUMA 460config X86_SUMMIT_NUMA
454 def_bool y 461 def_bool y
455 depends on X86_32 && NUMA && (X86_SUMMIT || X86_GENERICARCH) 462 depends on X86_32 && NUMA && X86_GENERICARCH
456 463
457config X86_CYCLONE_TIMER 464config X86_CYCLONE_TIMER
458 def_bool y 465 def_bool y
459 depends on X86_32 && X86_SUMMIT || X86_GENERICARCH 466 depends on X86_GENERICARCH
460 467
461config ES7000_CLUSTERED_APIC 468config ES7000_CLUSTERED_APIC
462 def_bool y 469 def_bool y
@@ -544,6 +551,21 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
544 Calgary anyway, pass 'iommu=calgary' on the kernel command line. 551 Calgary anyway, pass 'iommu=calgary' on the kernel command line.
545 If unsure, say Y. 552 If unsure, say Y.
546 553
554config AMD_IOMMU
555 bool "AMD IOMMU support"
556 select SWIOTLB
557 depends on X86_64 && PCI && ACPI
558 help
559 With this option you can enable support for AMD IOMMU hardware in
560 your system. An IOMMU is a hardware component which provides
561 remapping of DMA memory accesses from devices. With an AMD IOMMU you
562 can isolate the the DMA memory of different devices and protect the
563 system from misbehaving device drivers or hardware.
564
565 You can find out if your system has an AMD IOMMU if you look into
566 your BIOS for an option to enable it or if you have an IVRS ACPI
567 table.
568
547# need this always selected by IOMMU for the VIA workaround 569# need this always selected by IOMMU for the VIA workaround
548config SWIOTLB 570config SWIOTLB
549 bool 571 bool
@@ -555,21 +577,36 @@ config SWIOTLB
555 3 GB of memory. If unsure, say Y. 577 3 GB of memory. If unsure, say Y.
556 578
557config IOMMU_HELPER 579config IOMMU_HELPER
558 def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB) 580 def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
581config MAXSMP
582 bool "Configure Maximum number of SMP Processors and NUMA Nodes"
583 depends on X86_64 && SMP
584 default n
585 help
586 Configure maximum number of CPUS and NUMA Nodes for this architecture.
587 If unsure, say N.
559 588
589if MAXSMP
560config NR_CPUS 590config NR_CPUS
561 int "Maximum number of CPUs (2-255)" 591 int
562 range 2 255 592 default "4096"
593endif
594
595if !MAXSMP
596config NR_CPUS
597 int "Maximum number of CPUs (2-4096)"
598 range 2 4096
563 depends on SMP 599 depends on SMP
564 default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000 600 default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
565 default "8" 601 default "8"
566 help 602 help
567 This allows you to specify the maximum number of CPUs which this 603 This allows you to specify the maximum number of CPUs which this
568 kernel will support. The maximum supported value is 255 and the 604 kernel will support. The maximum supported value is 4096 and the
569 minimum value which makes sense is 2. 605 minimum value which makes sense is 2.
570 606
571 This is purely to save memory - each supported CPU adds 607 This is purely to save memory - each supported CPU adds
572 approximately eight kilobytes to the kernel image. 608 approximately eight kilobytes to the kernel image.
609endif
573 610
574config SCHED_SMT 611config SCHED_SMT
575 bool "SMT (Hyperthreading) scheduler support" 612 bool "SMT (Hyperthreading) scheduler support"
@@ -593,7 +630,7 @@ source "kernel/Kconfig.preempt"
593 630
594config X86_UP_APIC 631config X86_UP_APIC
595 bool "Local APIC support on uniprocessors" 632 bool "Local APIC support on uniprocessors"
596 depends on X86_32 && !SMP && !(X86_VISWS || X86_VOYAGER || X86_GENERICARCH) 633 depends on X86_32 && !SMP && !(X86_VOYAGER || X86_GENERICARCH)
597 help 634 help
598 A local APIC (Advanced Programmable Interrupt Controller) is an 635 A local APIC (Advanced Programmable Interrupt Controller) is an
599 integrated interrupt controller in the CPU. If you have a single-CPU 636 integrated interrupt controller in the CPU. If you have a single-CPU
@@ -618,11 +655,11 @@ config X86_UP_IOAPIC
618 655
619config X86_LOCAL_APIC 656config X86_LOCAL_APIC
620 def_bool y 657 def_bool y
621 depends on X86_64 || (X86_32 && (X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH)) 658 depends on X86_64 || (X86_32 && (X86_UP_APIC || (SMP && !X86_VOYAGER) || X86_GENERICARCH))
622 659
623config X86_IO_APIC 660config X86_IO_APIC
624 def_bool y 661 def_bool y
625 depends on X86_64 || (X86_32 && (X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH)) 662 depends on X86_64 || (X86_32 && (X86_UP_IOAPIC || (SMP && !X86_VOYAGER) || X86_GENERICARCH))
626 663
627config X86_VISWS_APIC 664config X86_VISWS_APIC
628 def_bool y 665 def_bool y
@@ -676,7 +713,7 @@ config X86_MCE_NONFATAL
676 713
677config X86_MCE_P4THERMAL 714config X86_MCE_P4THERMAL
678 bool "check for P4 thermal throttling interrupt." 715 bool "check for P4 thermal throttling interrupt."
679 depends on X86_32 && X86_MCE && (X86_UP_APIC || SMP) && !X86_VISWS 716 depends on X86_32 && X86_MCE && (X86_UP_APIC || SMP)
680 help 717 help
681 Enabling this feature will cause a message to be printed when the P4 718 Enabling this feature will cause a message to be printed when the P4
682 enters thermal throttling. 719 enters thermal throttling.
@@ -906,9 +943,9 @@ config X86_PAE
906config NUMA 943config NUMA
907 bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)" 944 bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
908 depends on SMP 945 depends on SMP
909 depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL) 946 depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
910 default n if X86_PC 947 default n if X86_PC
911 default y if (X86_NUMAQ || X86_SUMMIT) 948 default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
912 help 949 help
913 Enable NUMA (Non Uniform Memory Access) support. 950 Enable NUMA (Non Uniform Memory Access) support.
914 The kernel will try to allocate memory used by a CPU on the 951 The kernel will try to allocate memory used by a CPU on the
@@ -960,13 +997,25 @@ config NUMA_EMU
960 into virtual nodes when booted with "numa=fake=N", where N is the 997 into virtual nodes when booted with "numa=fake=N", where N is the
961 number of nodes. This is only useful for debugging. 998 number of nodes. This is only useful for debugging.
962 999
1000if MAXSMP
1001
1002config NODES_SHIFT
1003 int
1004 default "9"
1005endif
1006
1007if !MAXSMP
963config NODES_SHIFT 1008config NODES_SHIFT
964 int "Max num nodes shift(1-15)" 1009 int "Maximum NUMA Nodes (as a power of 2)"
965 range 1 15 if X86_64 1010 range 1 9 if X86_64
966 default "6" if X86_64 1011 default "6" if X86_64
967 default "4" if X86_NUMAQ 1012 default "4" if X86_NUMAQ
968 default "3" 1013 default "3"
969 depends on NEED_MULTIPLE_NODES 1014 depends on NEED_MULTIPLE_NODES
1015 help
1016 Specify the maximum number of NUMA Nodes available on the target
1017 system. Increases memory reserved to accomodate various tables.
1018endif
970 1019
971config HAVE_ARCH_BOOTMEM_NODE 1020config HAVE_ARCH_BOOTMEM_NODE
972 def_bool y 1021 def_bool y
@@ -1085,6 +1134,37 @@ config MTRR
1085 1134
1086 See <file:Documentation/mtrr.txt> for more information. 1135 See <file:Documentation/mtrr.txt> for more information.
1087 1136
1137config MTRR_SANITIZER
1138 bool
1139 prompt "MTRR cleanup support"
1140 depends on MTRR
1141 help
1142 Convert MTRR layout from continuous to discrete, so X drivers can
1143 add writeback entries.
1144
1145 Can be disabled with disable_mtrr_cleanup on the kernel command line.
1146 The largest mtrr entry size for a continous block can be set with
1147 mtrr_chunk_size.
1148
1149 If unsure, say N.
1150
1151config MTRR_SANITIZER_ENABLE_DEFAULT
1152 int "MTRR cleanup enable value (0-1)"
1153 range 0 1
1154 default "0"
1155 depends on MTRR_SANITIZER
1156 help
1157 Enable mtrr cleanup default value
1158
1159config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
1160 int "MTRR cleanup spare reg num (0-7)"
1161 range 0 7
1162 default "1"
1163 depends on MTRR_SANITIZER
1164 help
1165 mtrr cleanup spare entries default, it can be changed via
1166 mtrr_spare_reg_nr=N on the kernel command line.
1167
1088config X86_PAT 1168config X86_PAT
1089 bool 1169 bool
1090 prompt "x86 PAT support" 1170 prompt "x86 PAT support"
@@ -1185,7 +1265,6 @@ config KEXEC
1185 1265
1186config CRASH_DUMP 1266config CRASH_DUMP
1187 bool "kernel crash dumps (EXPERIMENTAL)" 1267 bool "kernel crash dumps (EXPERIMENTAL)"
1188 depends on EXPERIMENTAL
1189 depends on X86_64 || (X86_32 && HIGHMEM) 1268 depends on X86_64 || (X86_32 && HIGHMEM)
1190 help 1269 help
1191 Generate crash dump after being started by kexec. 1270 Generate crash dump after being started by kexec.
@@ -1334,7 +1413,7 @@ config X86_APM_BOOT
1334 1413
1335menuconfig APM 1414menuconfig APM
1336 tristate "APM (Advanced Power Management) BIOS support" 1415 tristate "APM (Advanced Power Management) BIOS support"
1337 depends on X86_32 && PM_SLEEP && !X86_VISWS 1416 depends on X86_32 && PM_SLEEP
1338 ---help--- 1417 ---help---
1339 APM is a BIOS specification for saving power using several different 1418 APM is a BIOS specification for saving power using several different
1340 techniques. This is mostly useful for battery powered laptops with 1419 techniques. This is mostly useful for battery powered laptops with
@@ -1470,8 +1549,7 @@ endmenu
1470menu "Bus options (PCI etc.)" 1549menu "Bus options (PCI etc.)"
1471 1550
1472config PCI 1551config PCI
1473 bool "PCI support" if !X86_VISWS && !X86_VSMP 1552 bool "PCI support"
1474 depends on !X86_VOYAGER
1475 default y 1553 default y
1476 select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC) 1554 select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
1477 help 1555 help
@@ -1482,7 +1560,7 @@ config PCI
1482 1560
1483choice 1561choice
1484 prompt "PCI access mode" 1562 prompt "PCI access mode"
1485 depends on X86_32 && PCI && !X86_VISWS 1563 depends on X86_32 && PCI
1486 default PCI_GOANY 1564 default PCI_GOANY
1487 ---help--- 1565 ---help---
1488 On PCI systems, the BIOS can be used to detect the PCI devices and 1566 On PCI systems, the BIOS can be used to detect the PCI devices and
@@ -1508,32 +1586,31 @@ config PCI_GOMMCONFIG
1508config PCI_GODIRECT 1586config PCI_GODIRECT
1509 bool "Direct" 1587 bool "Direct"
1510 1588
1511config PCI_GOANY
1512 bool "Any"
1513
1514config PCI_GOOLPC 1589config PCI_GOOLPC
1515 bool "OLPC" 1590 bool "OLPC"
1516 depends on OLPC 1591 depends on OLPC
1517 1592
1593config PCI_GOANY
1594 bool "Any"
1595
1518endchoice 1596endchoice
1519 1597
1520config PCI_BIOS 1598config PCI_BIOS
1521 def_bool y 1599 def_bool y
1522 depends on X86_32 && !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY) 1600 depends on X86_32 && PCI && (PCI_GOBIOS || PCI_GOANY)
1523 1601
1524# x86-64 doesn't support PCI BIOS access from long mode so always go direct. 1602# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
1525config PCI_DIRECT 1603config PCI_DIRECT
1526 def_bool y 1604 def_bool y
1527 depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC) || X86_VISWS) 1605 depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC))
1528 1606
1529config PCI_MMCONFIG 1607config PCI_MMCONFIG
1530 def_bool y 1608 def_bool y
1531 depends on X86_32 && PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY) 1609 depends on X86_32 && PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
1532 1610
1533config PCI_OLPC 1611config PCI_OLPC
1534 bool 1612 def_bool y
1535 depends on PCI && PCI_GOOLPC 1613 depends on PCI && OLPC && (PCI_GOOLPC || PCI_GOANY)
1536 default y
1537 1614
1538config PCI_DOMAINS 1615config PCI_DOMAINS
1539 def_bool y 1616 def_bool y
@@ -1585,7 +1662,7 @@ if X86_32
1585 1662
1586config ISA 1663config ISA
1587 bool "ISA support" 1664 bool "ISA support"
1588 depends on !(X86_VOYAGER || X86_VISWS) 1665 depends on !X86_VOYAGER
1589 help 1666 help
1590 Find out whether you have ISA slots on your motherboard. ISA is the 1667 Find out whether you have ISA slots on your motherboard. ISA is the
1591 name of a bus system, i.e. the way the CPU talks to the other stuff 1668 name of a bus system, i.e. the way the CPU talks to the other stuff
@@ -1612,7 +1689,7 @@ config EISA
1612source "drivers/eisa/Kconfig" 1689source "drivers/eisa/Kconfig"
1613 1690
1614config MCA 1691config MCA
1615 bool "MCA support" if !(X86_VISWS || X86_VOYAGER) 1692 bool "MCA support" if !X86_VOYAGER
1616 default y if X86_VOYAGER 1693 default y if X86_VOYAGER
1617 help 1694 help
1618 MicroChannel Architecture is found in some IBM PS/2 machines and 1695 MicroChannel Architecture is found in some IBM PS/2 machines and
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 2ad6301849a1..abff1b84ed5b 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -344,7 +344,7 @@ config X86_F00F_BUG
344 344
345config X86_WP_WORKS_OK 345config X86_WP_WORKS_OK
346 def_bool y 346 def_bool y
347 depends on X86_32 && !M386 347 depends on !M386
348 348
349config X86_INVLPG 349config X86_INVLPG
350 def_bool y 350 def_bool y
@@ -399,6 +399,10 @@ config X86_TSC
399 def_bool y 399 def_bool y
400 depends on ((MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ) || X86_64 400 depends on ((MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ) || X86_64
401 401
402config X86_CMPXCHG64
403 def_bool y
404 depends on X86_PAE || X86_64
405
402# this should be set for all -march=.. options where the compiler 406# this should be set for all -march=.. options where the compiler
403# generates cmov. 407# generates cmov.
404config X86_CMOV 408config X86_CMOV
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index ac1e31ba4795..ae36bfa814e5 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -6,15 +6,27 @@ config TRACE_IRQFLAGS_SUPPORT
6source "lib/Kconfig.debug" 6source "lib/Kconfig.debug"
7 7
8config NONPROMISC_DEVMEM 8config NONPROMISC_DEVMEM
9 bool "Disable promiscuous /dev/mem" 9 bool "Filter access to /dev/mem"
10 help 10 help
11 The /dev/mem file by default only allows userspace access to PCI 11 If this option is left off, you allow userspace access to all
12 space and the BIOS code and data regions. This is sufficient for 12 of memory, including kernel and userspace memory. Accidental
13 dosemu and X and all common users of /dev/mem. With this config 13 access to this is obviously disastrous, but specific access can
14 option, you allow userspace access to all of memory, including 14 be used by people debugging the kernel.
15 kernel and userspace memory. Accidental access to this is 15
16 obviously disasterous, but specific access can be used by people 16 If this option is switched on, the /dev/mem file only allows
17 debugging the kernel. 17 userspace access to PCI space and the BIOS code and data regions.
18 This is sufficient for dosemu and X and all common users of
19 /dev/mem.
20
21 If in doubt, say Y.
22
23config X86_VERBOSE_BOOTUP
24 bool "Enable verbose x86 bootup info messages"
25 default y
26 help
27 Enables the informational output from the decompression stage
28 (e.g. bzImage) of the boot. If you disable this you will still
29 see errors. Disable this if you want silent bootup.
18 30
19config EARLY_PRINTK 31config EARLY_PRINTK
20 bool "Early printk" if EMBEDDED 32 bool "Early printk" if EMBEDDED
@@ -56,7 +68,7 @@ config DEBUG_PAGEALLOC
56config DEBUG_PER_CPU_MAPS 68config DEBUG_PER_CPU_MAPS
57 bool "Debug access to per_cpu maps" 69 bool "Debug access to per_cpu maps"
58 depends on DEBUG_KERNEL 70 depends on DEBUG_KERNEL
59 depends on X86_64_SMP 71 depends on X86_SMP
60 default n 72 default n
61 help 73 help
62 Say Y to verify that the per_cpu map being accessed has 74 Say Y to verify that the per_cpu map being accessed has
@@ -125,15 +137,6 @@ config 4KSTACKS
125 on the VM subsystem for higher order allocations. This option 137 on the VM subsystem for higher order allocations. This option
126 will also use IRQ stacks to compensate for the reduced stackspace. 138 will also use IRQ stacks to compensate for the reduced stackspace.
127 139
128config X86_FIND_SMP_CONFIG
129 def_bool y
130 depends on X86_LOCAL_APIC || X86_VOYAGER
131 depends on X86_32
132
133config X86_MPPARSE
134 def_bool y
135 depends on (X86_32 && (X86_LOCAL_APIC && !X86_VISWS)) || X86_64
136
137config DOUBLEFAULT 140config DOUBLEFAULT
138 default y 141 default y
139 bool "Enable doublefault exception handler" if EMBEDDED 142 bool "Enable doublefault exception handler" if EMBEDDED
@@ -168,6 +171,33 @@ config IOMMU_LEAK
168 Add a simple leak tracer to the IOMMU code. This is useful when you 171 Add a simple leak tracer to the IOMMU code. This is useful when you
169 are debugging a buggy device driver that leaks IOMMU mappings. 172 are debugging a buggy device driver that leaks IOMMU mappings.
170 173
174config MMIOTRACE_HOOKS
175 bool
176
177config MMIOTRACE
178 bool "Memory mapped IO tracing"
179 depends on DEBUG_KERNEL && PCI
180 select TRACING
181 select MMIOTRACE_HOOKS
182 help
183 Mmiotrace traces Memory Mapped I/O access and is meant for
184 debugging and reverse engineering. It is called from the ioremap
185 implementation and works via page faults. Tracing is disabled by
186 default and can be enabled at run-time.
187
188 See Documentation/tracers/mmiotrace.txt.
189 If you are not helping to develop drivers, say N.
190
191config MMIOTRACE_TEST
192 tristate "Test module for mmiotrace"
193 depends on MMIOTRACE && m
194 help
195 This is a dumb module for testing mmiotrace. It is very dangerous
196 as it will write garbage to IO memory starting at a given address.
197 However, it should be safe to use on e.g. unused portion of VRAM.
198
199 Say N, unless you absolutely know what you are doing.
200
171# 201#
172# IO delay types: 202# IO delay types:
173# 203#
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 3cff3c894cf3..919ce21ea654 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -113,33 +113,11 @@ mcore-y := arch/x86/mach-default/
113mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-x86/mach-voyager 113mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-x86/mach-voyager
114mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/ 114mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/
115 115
116# VISWS subarch support
117mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws
118mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws/
119
120# NUMAQ subarch support
121mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-x86/mach-numaq
122mcore-$(CONFIG_X86_NUMAQ) := arch/x86/mach-default/
123
124# BIGSMP subarch support
125mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-x86/mach-bigsmp
126mcore-$(CONFIG_X86_BIGSMP) := arch/x86/mach-default/
127
128#Summit subarch support
129mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit
130mcore-$(CONFIG_X86_SUMMIT) := arch/x86/mach-default/
131
132# generic subarchitecture 116# generic subarchitecture
133mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic 117mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic
134fcore-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/ 118fcore-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/
135mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/ 119mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/
136 120
137
138# ES7000 subarch support
139mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000
140fcore-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/
141mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default/
142
143# RDC R-321x subarch support 121# RDC R-321x subarch support
144mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x 122mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x
145mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default/ 123mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default/
@@ -160,6 +138,7 @@ KBUILD_AFLAGS += $(mflags-y)
160 138
161head-y := arch/x86/kernel/head_$(BITS).o 139head-y := arch/x86/kernel/head_$(BITS).o
162head-y += arch/x86/kernel/head$(BITS).o 140head-y += arch/x86/kernel/head$(BITS).o
141head-y += arch/x86/kernel/head.o
163head-y += arch/x86/kernel/init_task.o 142head-y += arch/x86/kernel/init_task.o
164 143
165libs-y += arch/x86/lib/ 144libs-y += arch/x86/lib/
@@ -210,12 +189,12 @@ all: bzImage
210 189
211# KBUILD_IMAGE specify target image being built 190# KBUILD_IMAGE specify target image being built
212 KBUILD_IMAGE := $(boot)/bzImage 191 KBUILD_IMAGE := $(boot)/bzImage
213zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage 192zImage zlilo zdisk: KBUILD_IMAGE := $(boot)/zImage
214 193
215zImage bzImage: vmlinux 194zImage bzImage: vmlinux
216 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE) 195 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
217 $(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot 196 $(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
218 $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/bzImage 197 $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/$@
219 198
220compressed: zImage 199compressed: zImage
221 200
diff --git a/arch/x86/boot/a20.c b/arch/x86/boot/a20.c
index 90943f83e84d..4063d630deff 100644
--- a/arch/x86/boot/a20.c
+++ b/arch/x86/boot/a20.c
@@ -1,7 +1,7 @@
1/* -*- linux-c -*- ------------------------------------------------------- * 1/* -*- linux-c -*- ------------------------------------------------------- *
2 * 2 *
3 * Copyright (C) 1991, 1992 Linus Torvalds 3 * Copyright (C) 1991, 1992 Linus Torvalds
4 * Copyright 2007 rPath, Inc. - All Rights Reserved 4 * Copyright 2007-2008 rPath, Inc. - All Rights Reserved
5 * 5 *
6 * This file is part of the Linux kernel, and is made available under 6 * This file is part of the Linux kernel, and is made available under
7 * the terms of the GNU General Public License version 2. 7 * the terms of the GNU General Public License version 2.
@@ -95,6 +95,9 @@ static void enable_a20_kbc(void)
95 95
96 outb(0xdf, 0x60); /* A20 on */ 96 outb(0xdf, 0x60); /* A20 on */
97 empty_8042(); 97 empty_8042();
98
99 outb(0xff, 0x64); /* Null command, but UHCI wants it */
100 empty_8042();
98} 101}
99 102
100static void enable_a20_fast(void) 103static void enable_a20_fast(void)
@@ -115,8 +118,6 @@ static void enable_a20_fast(void)
115 118
116int enable_a20(void) 119int enable_a20(void)
117{ 120{
118 int loops = A20_ENABLE_LOOPS;
119
120#if defined(CONFIG_X86_ELAN) 121#if defined(CONFIG_X86_ELAN)
121 /* Elan croaks if we try to touch the KBC */ 122 /* Elan croaks if we try to touch the KBC */
122 enable_a20_fast(); 123 enable_a20_fast();
@@ -128,6 +129,7 @@ int enable_a20(void)
128 enable_a20_kbc(); 129 enable_a20_kbc();
129 return 0; 130 return 0;
130#else 131#else
132 int loops = A20_ENABLE_LOOPS;
131 while (loops--) { 133 while (loops--) {
132 /* First, check to see if A20 is already enabled 134 /* First, check to see if A20 is already enabled
133 (legacy free, etc.) */ 135 (legacy free, etc.) */
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index d8819efac81d..1d5dff4123e1 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -30,6 +30,7 @@
30#include <asm/page.h> 30#include <asm/page.h>
31#include <asm/boot.h> 31#include <asm/boot.h>
32#include <asm/msr.h> 32#include <asm/msr.h>
33#include <asm/processor-flags.h>
33#include <asm/asm-offsets.h> 34#include <asm/asm-offsets.h>
34 35
35.section ".text.head" 36.section ".text.head"
@@ -109,7 +110,7 @@ startup_32:
109 110
110 /* Enable PAE mode */ 111 /* Enable PAE mode */
111 xorl %eax, %eax 112 xorl %eax, %eax
112 orl $(1 << 5), %eax 113 orl $(X86_CR4_PAE), %eax
113 movl %eax, %cr4 114 movl %eax, %cr4
114 115
115 /* 116 /*
@@ -170,7 +171,7 @@ startup_32:
170 pushl %eax 171 pushl %eax
171 172
172 /* Enter paged protected Mode, activating Long Mode */ 173 /* Enter paged protected Mode, activating Long Mode */
173 movl $0x80000001, %eax /* Enable Paging and Protected mode */ 174 movl $(X86_CR0_PG | X86_CR0_PE), %eax /* Enable Paging and Protected mode */
174 movl %eax, %cr0 175 movl %eax, %cr0
175 176
176 /* Jump from 32bit compatibility mode into 64bit mode. */ 177 /* Jump from 32bit compatibility mode into 64bit mode. */
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 90456cee47c3..bc5553b496f7 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -30,6 +30,7 @@
30#include <asm/io.h> 30#include <asm/io.h>
31#include <asm/page.h> 31#include <asm/page.h>
32#include <asm/boot.h> 32#include <asm/boot.h>
33#include <asm/bootparam.h>
33 34
34/* WARNING!! 35/* WARNING!!
35 * This code is compiled with -fPIC and it is relocated dynamically 36 * This code is compiled with -fPIC and it is relocated dynamically
@@ -187,13 +188,8 @@ static void gzip_release(void **);
187/* 188/*
188 * This is set up by the setup-routine at boot-time 189 * This is set up by the setup-routine at boot-time
189 */ 190 */
190static unsigned char *real_mode; /* Pointer to real-mode data */ 191static struct boot_params *real_mode; /* Pointer to real-mode data */
191 192static int quiet;
192#define RM_EXT_MEM_K (*(unsigned short *)(real_mode + 0x2))
193#ifndef STANDARD_MEMORY_BIOS_CALL
194#define RM_ALT_MEM_K (*(unsigned long *)(real_mode + 0x1e0))
195#endif
196#define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0))
197 193
198extern unsigned char input_data[]; 194extern unsigned char input_data[];
199extern int input_len; 195extern int input_len;
@@ -206,7 +202,8 @@ static void free(void *where);
206static void *memset(void *s, int c, unsigned n); 202static void *memset(void *s, int c, unsigned n);
207static void *memcpy(void *dest, const void *src, unsigned n); 203static void *memcpy(void *dest, const void *src, unsigned n);
208 204
209static void putstr(const char *); 205static void __putstr(int, const char *);
206#define putstr(__x) __putstr(0, __x)
210 207
211#ifdef CONFIG_X86_64 208#ifdef CONFIG_X86_64
212#define memptr long 209#define memptr long
@@ -221,10 +218,6 @@ static char *vidmem;
221static int vidport; 218static int vidport;
222static int lines, cols; 219static int lines, cols;
223 220
224#ifdef CONFIG_X86_NUMAQ
225void *xquad_portio;
226#endif
227
228#include "../../../../lib/inflate.c" 221#include "../../../../lib/inflate.c"
229 222
230static void *malloc(int size) 223static void *malloc(int size)
@@ -270,18 +263,24 @@ static void scroll(void)
270 vidmem[i] = ' '; 263 vidmem[i] = ' ';
271} 264}
272 265
273static void putstr(const char *s) 266static void __putstr(int error, const char *s)
274{ 267{
275 int x, y, pos; 268 int x, y, pos;
276 char c; 269 char c;
277 270
271#ifndef CONFIG_X86_VERBOSE_BOOTUP
272 if (!error)
273 return;
274#endif
275
278#ifdef CONFIG_X86_32 276#ifdef CONFIG_X86_32
279 if (RM_SCREEN_INFO.orig_video_mode == 0 && lines == 0 && cols == 0) 277 if (real_mode->screen_info.orig_video_mode == 0 &&
278 lines == 0 && cols == 0)
280 return; 279 return;
281#endif 280#endif
282 281
283 x = RM_SCREEN_INFO.orig_x; 282 x = real_mode->screen_info.orig_x;
284 y = RM_SCREEN_INFO.orig_y; 283 y = real_mode->screen_info.orig_y;
285 284
286 while ((c = *s++) != '\0') { 285 while ((c = *s++) != '\0') {
287 if (c == '\n') { 286 if (c == '\n') {
@@ -302,8 +301,8 @@ static void putstr(const char *s)
302 } 301 }
303 } 302 }
304 303
305 RM_SCREEN_INFO.orig_x = x; 304 real_mode->screen_info.orig_x = x;
306 RM_SCREEN_INFO.orig_y = y; 305 real_mode->screen_info.orig_y = y;
307 306
308 pos = (x + cols * y) * 2; /* Update cursor position */ 307 pos = (x + cols * y) * 2; /* Update cursor position */
309 outb(14, vidport); 308 outb(14, vidport);
@@ -366,9 +365,9 @@ static void flush_window(void)
366 365
367static void error(char *x) 366static void error(char *x)
368{ 367{
369 putstr("\n\n"); 368 __putstr(1, "\n\n");
370 putstr(x); 369 __putstr(1, x);
371 putstr("\n\n -- System halted"); 370 __putstr(1, "\n\n -- System halted");
372 371
373 while (1) 372 while (1)
374 asm("hlt"); 373 asm("hlt");
@@ -395,7 +394,8 @@ static void parse_elf(void *output)
395 return; 394 return;
396 } 395 }
397 396
398 putstr("Parsing ELF... "); 397 if (!quiet)
398 putstr("Parsing ELF... ");
399 399
400 phdrs = malloc(sizeof(*phdrs) * ehdr.e_phnum); 400 phdrs = malloc(sizeof(*phdrs) * ehdr.e_phnum);
401 if (!phdrs) 401 if (!phdrs)
@@ -430,7 +430,10 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
430{ 430{
431 real_mode = rmode; 431 real_mode = rmode;
432 432
433 if (RM_SCREEN_INFO.orig_video_mode == 7) { 433 if (real_mode->hdr.loadflags & QUIET_FLAG)
434 quiet = 1;
435
436 if (real_mode->screen_info.orig_video_mode == 7) {
434 vidmem = (char *) 0xb0000; 437 vidmem = (char *) 0xb0000;
435 vidport = 0x3b4; 438 vidport = 0x3b4;
436 } else { 439 } else {
@@ -438,8 +441,8 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
438 vidport = 0x3d4; 441 vidport = 0x3d4;
439 } 442 }
440 443
441 lines = RM_SCREEN_INFO.orig_video_lines; 444 lines = real_mode->screen_info.orig_video_lines;
442 cols = RM_SCREEN_INFO.orig_video_cols; 445 cols = real_mode->screen_info.orig_video_cols;
443 446
444 window = output; /* Output buffer (Normally at 1M) */ 447 window = output; /* Output buffer (Normally at 1M) */
445 free_mem_ptr = heap; /* Heap */ 448 free_mem_ptr = heap; /* Heap */
@@ -465,9 +468,11 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
465#endif 468#endif
466 469
467 makecrc(); 470 makecrc();
468 putstr("\nDecompressing Linux... "); 471 if (!quiet)
472 putstr("\nDecompressing Linux... ");
469 gunzip(); 473 gunzip();
470 parse_elf(output); 474 parse_elf(output);
471 putstr("done.\nBooting the kernel.\n"); 475 if (!quiet)
476 putstr("done.\nBooting the kernel.\n");
472 return; 477 return;
473} 478}
diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
index edaadea90aaf..a1310c52fc0c 100644
--- a/arch/x86/boot/compressed/relocs.c
+++ b/arch/x86/boot/compressed/relocs.c
@@ -10,16 +10,20 @@
10#define USE_BSD 10#define USE_BSD
11#include <endian.h> 11#include <endian.h>
12 12
13#define MAX_SHDRS 100
14#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) 13#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
15static Elf32_Ehdr ehdr; 14static Elf32_Ehdr ehdr;
16static Elf32_Shdr shdr[MAX_SHDRS];
17static Elf32_Sym *symtab[MAX_SHDRS];
18static Elf32_Rel *reltab[MAX_SHDRS];
19static char *strtab[MAX_SHDRS];
20static unsigned long reloc_count, reloc_idx; 15static unsigned long reloc_count, reloc_idx;
21static unsigned long *relocs; 16static unsigned long *relocs;
22 17
18struct section {
19 Elf32_Shdr shdr;
20 struct section *link;
21 Elf32_Sym *symtab;
22 Elf32_Rel *reltab;
23 char *strtab;
24};
25static struct section *secs;
26
23/* 27/*
24 * Following symbols have been audited. There values are constant and do 28 * Following symbols have been audited. There values are constant and do
25 * not change if bzImage is loaded at a different physical address than 29 * not change if bzImage is loaded at a different physical address than
@@ -35,7 +39,7 @@ static int is_safe_abs_reloc(const char* sym_name)
35{ 39{
36 int i; 40 int i;
37 41
38 for(i = 0; i < ARRAY_SIZE(safe_abs_relocs); i++) { 42 for (i = 0; i < ARRAY_SIZE(safe_abs_relocs); i++) {
39 if (!strcmp(sym_name, safe_abs_relocs[i])) 43 if (!strcmp(sym_name, safe_abs_relocs[i]))
40 /* Match found */ 44 /* Match found */
41 return 1; 45 return 1;
@@ -137,10 +141,10 @@ static const char *sec_name(unsigned shndx)
137{ 141{
138 const char *sec_strtab; 142 const char *sec_strtab;
139 const char *name; 143 const char *name;
140 sec_strtab = strtab[ehdr.e_shstrndx]; 144 sec_strtab = secs[ehdr.e_shstrndx].strtab;
141 name = "<noname>"; 145 name = "<noname>";
142 if (shndx < ehdr.e_shnum) { 146 if (shndx < ehdr.e_shnum) {
143 name = sec_strtab + shdr[shndx].sh_name; 147 name = sec_strtab + secs[shndx].shdr.sh_name;
144 } 148 }
145 else if (shndx == SHN_ABS) { 149 else if (shndx == SHN_ABS) {
146 name = "ABSOLUTE"; 150 name = "ABSOLUTE";
@@ -159,7 +163,7 @@ static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym)
159 name = sym_strtab + sym->st_name; 163 name = sym_strtab + sym->st_name;
160 } 164 }
161 else { 165 else {
162 name = sec_name(shdr[sym->st_shndx].sh_name); 166 name = sec_name(secs[sym->st_shndx].shdr.sh_name);
163 } 167 }
164 return name; 168 return name;
165} 169}
@@ -244,29 +248,34 @@ static void read_ehdr(FILE *fp)
244static void read_shdrs(FILE *fp) 248static void read_shdrs(FILE *fp)
245{ 249{
246 int i; 250 int i;
247 if (ehdr.e_shnum > MAX_SHDRS) { 251 Elf32_Shdr shdr;
248 die("%d section headers supported: %d\n", 252
249 ehdr.e_shnum, MAX_SHDRS); 253 secs = calloc(ehdr.e_shnum, sizeof(struct section));
254 if (!secs) {
255 die("Unable to allocate %d section headers\n",
256 ehdr.e_shnum);
250 } 257 }
251 if (fseek(fp, ehdr.e_shoff, SEEK_SET) < 0) { 258 if (fseek(fp, ehdr.e_shoff, SEEK_SET) < 0) {
252 die("Seek to %d failed: %s\n", 259 die("Seek to %d failed: %s\n",
253 ehdr.e_shoff, strerror(errno)); 260 ehdr.e_shoff, strerror(errno));
254 } 261 }
255 if (fread(&shdr, sizeof(shdr[0]), ehdr.e_shnum, fp) != ehdr.e_shnum) { 262 for (i = 0; i < ehdr.e_shnum; i++) {
256 die("Cannot read ELF section headers: %s\n", 263 struct section *sec = &secs[i];
257 strerror(errno)); 264 if (fread(&shdr, sizeof shdr, 1, fp) != 1)
258 } 265 die("Cannot read ELF section headers %d/%d: %s\n",
259 for(i = 0; i < ehdr.e_shnum; i++) { 266 i, ehdr.e_shnum, strerror(errno));
260 shdr[i].sh_name = elf32_to_cpu(shdr[i].sh_name); 267 sec->shdr.sh_name = elf32_to_cpu(shdr.sh_name);
261 shdr[i].sh_type = elf32_to_cpu(shdr[i].sh_type); 268 sec->shdr.sh_type = elf32_to_cpu(shdr.sh_type);
262 shdr[i].sh_flags = elf32_to_cpu(shdr[i].sh_flags); 269 sec->shdr.sh_flags = elf32_to_cpu(shdr.sh_flags);
263 shdr[i].sh_addr = elf32_to_cpu(shdr[i].sh_addr); 270 sec->shdr.sh_addr = elf32_to_cpu(shdr.sh_addr);
264 shdr[i].sh_offset = elf32_to_cpu(shdr[i].sh_offset); 271 sec->shdr.sh_offset = elf32_to_cpu(shdr.sh_offset);
265 shdr[i].sh_size = elf32_to_cpu(shdr[i].sh_size); 272 sec->shdr.sh_size = elf32_to_cpu(shdr.sh_size);
266 shdr[i].sh_link = elf32_to_cpu(shdr[i].sh_link); 273 sec->shdr.sh_link = elf32_to_cpu(shdr.sh_link);
267 shdr[i].sh_info = elf32_to_cpu(shdr[i].sh_info); 274 sec->shdr.sh_info = elf32_to_cpu(shdr.sh_info);
268 shdr[i].sh_addralign = elf32_to_cpu(shdr[i].sh_addralign); 275 sec->shdr.sh_addralign = elf32_to_cpu(shdr.sh_addralign);
269 shdr[i].sh_entsize = elf32_to_cpu(shdr[i].sh_entsize); 276 sec->shdr.sh_entsize = elf32_to_cpu(shdr.sh_entsize);
277 if (sec->shdr.sh_link < ehdr.e_shnum)
278 sec->link = &secs[sec->shdr.sh_link];
270 } 279 }
271 280
272} 281}
@@ -274,20 +283,22 @@ static void read_shdrs(FILE *fp)
274static void read_strtabs(FILE *fp) 283static void read_strtabs(FILE *fp)
275{ 284{
276 int i; 285 int i;
277 for(i = 0; i < ehdr.e_shnum; i++) { 286 for (i = 0; i < ehdr.e_shnum; i++) {
278 if (shdr[i].sh_type != SHT_STRTAB) { 287 struct section *sec = &secs[i];
288 if (sec->shdr.sh_type != SHT_STRTAB) {
279 continue; 289 continue;
280 } 290 }
281 strtab[i] = malloc(shdr[i].sh_size); 291 sec->strtab = malloc(sec->shdr.sh_size);
282 if (!strtab[i]) { 292 if (!sec->strtab) {
283 die("malloc of %d bytes for strtab failed\n", 293 die("malloc of %d bytes for strtab failed\n",
284 shdr[i].sh_size); 294 sec->shdr.sh_size);
285 } 295 }
286 if (fseek(fp, shdr[i].sh_offset, SEEK_SET) < 0) { 296 if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) {
287 die("Seek to %d failed: %s\n", 297 die("Seek to %d failed: %s\n",
288 shdr[i].sh_offset, strerror(errno)); 298 sec->shdr.sh_offset, strerror(errno));
289 } 299 }
290 if (fread(strtab[i], 1, shdr[i].sh_size, fp) != shdr[i].sh_size) { 300 if (fread(sec->strtab, 1, sec->shdr.sh_size, fp)
301 != sec->shdr.sh_size) {
291 die("Cannot read symbol table: %s\n", 302 die("Cannot read symbol table: %s\n",
292 strerror(errno)); 303 strerror(errno));
293 } 304 }
@@ -297,28 +308,31 @@ static void read_strtabs(FILE *fp)
297static void read_symtabs(FILE *fp) 308static void read_symtabs(FILE *fp)
298{ 309{
299 int i,j; 310 int i,j;
300 for(i = 0; i < ehdr.e_shnum; i++) { 311 for (i = 0; i < ehdr.e_shnum; i++) {
301 if (shdr[i].sh_type != SHT_SYMTAB) { 312 struct section *sec = &secs[i];
313 if (sec->shdr.sh_type != SHT_SYMTAB) {
302 continue; 314 continue;
303 } 315 }
304 symtab[i] = malloc(shdr[i].sh_size); 316 sec->symtab = malloc(sec->shdr.sh_size);
305 if (!symtab[i]) { 317 if (!sec->symtab) {
306 die("malloc of %d bytes for symtab failed\n", 318 die("malloc of %d bytes for symtab failed\n",
307 shdr[i].sh_size); 319 sec->shdr.sh_size);
308 } 320 }
309 if (fseek(fp, shdr[i].sh_offset, SEEK_SET) < 0) { 321 if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) {
310 die("Seek to %d failed: %s\n", 322 die("Seek to %d failed: %s\n",
311 shdr[i].sh_offset, strerror(errno)); 323 sec->shdr.sh_offset, strerror(errno));
312 } 324 }
313 if (fread(symtab[i], 1, shdr[i].sh_size, fp) != shdr[i].sh_size) { 325 if (fread(sec->symtab, 1, sec->shdr.sh_size, fp)
326 != sec->shdr.sh_size) {
314 die("Cannot read symbol table: %s\n", 327 die("Cannot read symbol table: %s\n",
315 strerror(errno)); 328 strerror(errno));
316 } 329 }
317 for(j = 0; j < shdr[i].sh_size/sizeof(symtab[i][0]); j++) { 330 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) {
318 symtab[i][j].st_name = elf32_to_cpu(symtab[i][j].st_name); 331 Elf32_Sym *sym = &sec->symtab[j];
319 symtab[i][j].st_value = elf32_to_cpu(symtab[i][j].st_value); 332 sym->st_name = elf32_to_cpu(sym->st_name);
320 symtab[i][j].st_size = elf32_to_cpu(symtab[i][j].st_size); 333 sym->st_value = elf32_to_cpu(sym->st_value);
321 symtab[i][j].st_shndx = elf16_to_cpu(symtab[i][j].st_shndx); 334 sym->st_size = elf32_to_cpu(sym->st_size);
335 sym->st_shndx = elf16_to_cpu(sym->st_shndx);
322 } 336 }
323 } 337 }
324} 338}
@@ -327,26 +341,29 @@ static void read_symtabs(FILE *fp)
327static void read_relocs(FILE *fp) 341static void read_relocs(FILE *fp)
328{ 342{
329 int i,j; 343 int i,j;
330 for(i = 0; i < ehdr.e_shnum; i++) { 344 for (i = 0; i < ehdr.e_shnum; i++) {
331 if (shdr[i].sh_type != SHT_REL) { 345 struct section *sec = &secs[i];
346 if (sec->shdr.sh_type != SHT_REL) {
332 continue; 347 continue;
333 } 348 }
334 reltab[i] = malloc(shdr[i].sh_size); 349 sec->reltab = malloc(sec->shdr.sh_size);
335 if (!reltab[i]) { 350 if (!sec->reltab) {
336 die("malloc of %d bytes for relocs failed\n", 351 die("malloc of %d bytes for relocs failed\n",
337 shdr[i].sh_size); 352 sec->shdr.sh_size);
338 } 353 }
339 if (fseek(fp, shdr[i].sh_offset, SEEK_SET) < 0) { 354 if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) {
340 die("Seek to %d failed: %s\n", 355 die("Seek to %d failed: %s\n",
341 shdr[i].sh_offset, strerror(errno)); 356 sec->shdr.sh_offset, strerror(errno));
342 } 357 }
343 if (fread(reltab[i], 1, shdr[i].sh_size, fp) != shdr[i].sh_size) { 358 if (fread(sec->reltab, 1, sec->shdr.sh_size, fp)
359 != sec->shdr.sh_size) {
344 die("Cannot read symbol table: %s\n", 360 die("Cannot read symbol table: %s\n",
345 strerror(errno)); 361 strerror(errno));
346 } 362 }
347 for(j = 0; j < shdr[i].sh_size/sizeof(reltab[0][0]); j++) { 363 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
348 reltab[i][j].r_offset = elf32_to_cpu(reltab[i][j].r_offset); 364 Elf32_Rel *rel = &sec->reltab[j];
349 reltab[i][j].r_info = elf32_to_cpu(reltab[i][j].r_info); 365 rel->r_offset = elf32_to_cpu(rel->r_offset);
366 rel->r_info = elf32_to_cpu(rel->r_info);
350 } 367 }
351 } 368 }
352} 369}
@@ -357,19 +374,21 @@ static void print_absolute_symbols(void)
357 int i; 374 int i;
358 printf("Absolute symbols\n"); 375 printf("Absolute symbols\n");
359 printf(" Num: Value Size Type Bind Visibility Name\n"); 376 printf(" Num: Value Size Type Bind Visibility Name\n");
360 for(i = 0; i < ehdr.e_shnum; i++) { 377 for (i = 0; i < ehdr.e_shnum; i++) {
378 struct section *sec = &secs[i];
361 char *sym_strtab; 379 char *sym_strtab;
362 Elf32_Sym *sh_symtab; 380 Elf32_Sym *sh_symtab;
363 int j; 381 int j;
364 if (shdr[i].sh_type != SHT_SYMTAB) { 382
383 if (sec->shdr.sh_type != SHT_SYMTAB) {
365 continue; 384 continue;
366 } 385 }
367 sh_symtab = symtab[i]; 386 sh_symtab = sec->symtab;
368 sym_strtab = strtab[shdr[i].sh_link]; 387 sym_strtab = sec->link->strtab;
369 for(j = 0; j < shdr[i].sh_size/sizeof(symtab[0][0]); j++) { 388 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) {
370 Elf32_Sym *sym; 389 Elf32_Sym *sym;
371 const char *name; 390 const char *name;
372 sym = &symtab[i][j]; 391 sym = &sec->symtab[j];
373 name = sym_name(sym_strtab, sym); 392 name = sym_name(sym_strtab, sym);
374 if (sym->st_shndx != SHN_ABS) { 393 if (sym->st_shndx != SHN_ABS) {
375 continue; 394 continue;
@@ -389,26 +408,27 @@ static void print_absolute_relocs(void)
389{ 408{
390 int i, printed = 0; 409 int i, printed = 0;
391 410
392 for(i = 0; i < ehdr.e_shnum; i++) { 411 for (i = 0; i < ehdr.e_shnum; i++) {
412 struct section *sec = &secs[i];
413 struct section *sec_applies, *sec_symtab;
393 char *sym_strtab; 414 char *sym_strtab;
394 Elf32_Sym *sh_symtab; 415 Elf32_Sym *sh_symtab;
395 unsigned sec_applies, sec_symtab;
396 int j; 416 int j;
397 if (shdr[i].sh_type != SHT_REL) { 417 if (sec->shdr.sh_type != SHT_REL) {
398 continue; 418 continue;
399 } 419 }
400 sec_symtab = shdr[i].sh_link; 420 sec_symtab = sec->link;
401 sec_applies = shdr[i].sh_info; 421 sec_applies = &secs[sec->shdr.sh_info];
402 if (!(shdr[sec_applies].sh_flags & SHF_ALLOC)) { 422 if (!(sec_applies->shdr.sh_flags & SHF_ALLOC)) {
403 continue; 423 continue;
404 } 424 }
405 sh_symtab = symtab[sec_symtab]; 425 sh_symtab = sec_symtab->symtab;
406 sym_strtab = strtab[shdr[sec_symtab].sh_link]; 426 sym_strtab = sec_symtab->link->strtab;
407 for(j = 0; j < shdr[i].sh_size/sizeof(reltab[0][0]); j++) { 427 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
408 Elf32_Rel *rel; 428 Elf32_Rel *rel;
409 Elf32_Sym *sym; 429 Elf32_Sym *sym;
410 const char *name; 430 const char *name;
411 rel = &reltab[i][j]; 431 rel = &sec->reltab[j];
412 sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; 432 sym = &sh_symtab[ELF32_R_SYM(rel->r_info)];
413 name = sym_name(sym_strtab, sym); 433 name = sym_name(sym_strtab, sym);
414 if (sym->st_shndx != SHN_ABS) { 434 if (sym->st_shndx != SHN_ABS) {
@@ -456,26 +476,28 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
456{ 476{
457 int i; 477 int i;
458 /* Walk through the relocations */ 478 /* Walk through the relocations */
459 for(i = 0; i < ehdr.e_shnum; i++) { 479 for (i = 0; i < ehdr.e_shnum; i++) {
460 char *sym_strtab; 480 char *sym_strtab;
461 Elf32_Sym *sh_symtab; 481 Elf32_Sym *sh_symtab;
462 unsigned sec_applies, sec_symtab; 482 struct section *sec_applies, *sec_symtab;
463 int j; 483 int j;
464 if (shdr[i].sh_type != SHT_REL) { 484 struct section *sec = &secs[i];
485
486 if (sec->shdr.sh_type != SHT_REL) {
465 continue; 487 continue;
466 } 488 }
467 sec_symtab = shdr[i].sh_link; 489 sec_symtab = sec->link;
468 sec_applies = shdr[i].sh_info; 490 sec_applies = &secs[sec->shdr.sh_info];
469 if (!(shdr[sec_applies].sh_flags & SHF_ALLOC)) { 491 if (!(sec_applies->shdr.sh_flags & SHF_ALLOC)) {
470 continue; 492 continue;
471 } 493 }
472 sh_symtab = symtab[sec_symtab]; 494 sh_symtab = sec_symtab->symtab;
473 sym_strtab = strtab[shdr[sec_symtab].sh_link]; 495 sym_strtab = sec->link->strtab;
474 for(j = 0; j < shdr[i].sh_size/sizeof(reltab[0][0]); j++) { 496 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
475 Elf32_Rel *rel; 497 Elf32_Rel *rel;
476 Elf32_Sym *sym; 498 Elf32_Sym *sym;
477 unsigned r_type; 499 unsigned r_type;
478 rel = &reltab[i][j]; 500 rel = &sec->reltab[j];
479 sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; 501 sym = &sh_symtab[ELF32_R_SYM(rel->r_info)];
480 r_type = ELF32_R_TYPE(rel->r_info); 502 r_type = ELF32_R_TYPE(rel->r_info);
481 /* Don't visit relocations to absolute symbols */ 503 /* Don't visit relocations to absolute symbols */
@@ -539,7 +561,7 @@ static void emit_relocs(int as_text)
539 */ 561 */
540 printf(".section \".data.reloc\",\"a\"\n"); 562 printf(".section \".data.reloc\",\"a\"\n");
541 printf(".balign 4\n"); 563 printf(".balign 4\n");
542 for(i = 0; i < reloc_count; i++) { 564 for (i = 0; i < reloc_count; i++) {
543 printf("\t .long 0x%08lx\n", relocs[i]); 565 printf("\t .long 0x%08lx\n", relocs[i]);
544 } 566 }
545 printf("\n"); 567 printf("\n");
@@ -550,7 +572,7 @@ static void emit_relocs(int as_text)
550 /* Print a stop */ 572 /* Print a stop */
551 printf("%c%c%c%c", buf[0], buf[1], buf[2], buf[3]); 573 printf("%c%c%c%c", buf[0], buf[1], buf[2], buf[3]);
552 /* Now print each relocation */ 574 /* Now print each relocation */
553 for(i = 0; i < reloc_count; i++) { 575 for (i = 0; i < reloc_count; i++) {
554 buf[0] = (relocs[i] >> 0) & 0xff; 576 buf[0] = (relocs[i] >> 0) & 0xff;
555 buf[1] = (relocs[i] >> 8) & 0xff; 577 buf[1] = (relocs[i] >> 8) & 0xff;
556 buf[2] = (relocs[i] >> 16) & 0xff; 578 buf[2] = (relocs[i] >> 16) & 0xff;
@@ -577,7 +599,7 @@ int main(int argc, char **argv)
577 show_absolute_relocs = 0; 599 show_absolute_relocs = 0;
578 as_text = 0; 600 as_text = 0;
579 fname = NULL; 601 fname = NULL;
580 for(i = 1; i < argc; i++) { 602 for (i = 1; i < argc; i++) {
581 char *arg = argv[i]; 603 char *arg = argv[i];
582 if (*arg == '-') { 604 if (*arg == '-') {
583 if (strcmp(argv[1], "--abs-syms") == 0) { 605 if (strcmp(argv[1], "--abs-syms") == 0) {
diff --git a/arch/x86/boot/cpu.c b/arch/x86/boot/cpu.c
index 00e19edd852c..92d6fd73dc7d 100644
--- a/arch/x86/boot/cpu.c
+++ b/arch/x86/boot/cpu.c
@@ -28,6 +28,8 @@ static char *cpu_name(int level)
28 if (level == 64) { 28 if (level == 64) {
29 return "x86-64"; 29 return "x86-64";
30 } else { 30 } else {
31 if (level == 15)
32 level = 6;
31 sprintf(buf, "i%d86", level); 33 sprintf(buf, "i%d86", level);
32 return buf; 34 return buf;
33 } 35 }
diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
index 77569a4a3be1..2296164b54d2 100644
--- a/arch/x86/boot/main.c
+++ b/arch/x86/boot/main.c
@@ -165,6 +165,10 @@ void main(void)
165 /* Set the video mode */ 165 /* Set the video mode */
166 set_video(); 166 set_video();
167 167
168 /* Parse command line for 'quiet' and pass it to decompressor. */
169 if (cmdline_find_option_bool("quiet"))
170 boot_params.hdr.loadflags |= QUIET_FLAG;
171
168 /* Do the last things and invoke protected mode */ 172 /* Do the last things and invoke protected mode */
169 go_to_protected_mode(); 173 go_to_protected_mode();
170} 174}
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
index acad32eb4290..53165c97336b 100644
--- a/arch/x86/boot/memory.c
+++ b/arch/x86/boot/memory.c
@@ -13,6 +13,7 @@
13 */ 13 */
14 14
15#include "boot.h" 15#include "boot.h"
16#include <linux/kernel.h>
16 17
17#define SMAP 0x534d4150 /* ASCII "SMAP" */ 18#define SMAP 0x534d4150 /* ASCII "SMAP" */
18 19
@@ -53,7 +54,7 @@ static int detect_memory_e820(void)
53 54
54 count++; 55 count++;
55 desc++; 56 desc++;
56 } while (next && count < E820MAX); 57 } while (next && count < ARRAY_SIZE(boot_params.e820_map));
57 58
58 return boot_params.e820_entries = count; 59 return boot_params.e820_entries = count;
59} 60}
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index ab049d40a884..141b6e20ed31 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -33,6 +33,8 @@ protected_mode_jump:
33 movw %cs, %bx 33 movw %cs, %bx
34 shll $4, %ebx 34 shll $4, %ebx
35 addl %ebx, 2f 35 addl %ebx, 2f
36 jmp 1f # Short jump to serialize on 386/486
371:
36 38
37 movw $__BOOT_DS, %cx 39 movw $__BOOT_DS, %cx
38 movw $__BOOT_TSS, %di 40 movw $__BOOT_TSS, %di
@@ -40,8 +42,6 @@ protected_mode_jump:
40 movl %cr0, %edx 42 movl %cr0, %edx
41 orb $X86_CR0_PE, %dl # Protected mode 43 orb $X86_CR0_PE, %dl # Protected mode
42 movl %edx, %cr0 44 movl %edx, %cr0
43 jmp 1f # Short jump to serialize on 386/486
441:
45 45
46 # Transition to 32-bit mode 46 # Transition to 32-bit mode
47 .byte 0x66, 0xea # ljmpl opcode 47 .byte 0x66, 0xea # ljmpl opcode
diff --git a/arch/x86/boot/video-vga.c b/arch/x86/boot/video-vga.c
index 40ecb8d7688c..b939cb476dec 100644
--- a/arch/x86/boot/video-vga.c
+++ b/arch/x86/boot/video-vga.c
@@ -259,8 +259,7 @@ static int vga_probe(void)
259 return mode_count[adapter]; 259 return mode_count[adapter];
260} 260}
261 261
262__videocard video_vga = 262__videocard video_vga = {
263{
264 .card_name = "VGA", 263 .card_name = "VGA",
265 .probe = vga_probe, 264 .probe = vga_probe,
266 .set_mode = vga_set_mode, 265 .set_mode = vga_set_mode,
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index ad7ddaaff588..9bc34e2033ec 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -1,54 +1,103 @@
1# 1#
2# Automatically generated make config: don't edit 2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.22-git14 3# Linux kernel version: 2.6.26-rc1
4# Fri Jul 20 09:53:15 2007 4# Sun May 4 19:59:02 2008
5# 5#
6# CONFIG_64BIT is not set
6CONFIG_X86_32=y 7CONFIG_X86_32=y
8# CONFIG_X86_64 is not set
9CONFIG_X86=y
10CONFIG_DEFCONFIG_LIST="arch/x86/configs/i386_defconfig"
11# CONFIG_GENERIC_LOCKBREAK is not set
7CONFIG_GENERIC_TIME=y 12CONFIG_GENERIC_TIME=y
13CONFIG_GENERIC_CMOS_UPDATE=y
8CONFIG_CLOCKSOURCE_WATCHDOG=y 14CONFIG_CLOCKSOURCE_WATCHDOG=y
9CONFIG_GENERIC_CLOCKEVENTS=y 15CONFIG_GENERIC_CLOCKEVENTS=y
10CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y 16CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
11CONFIG_LOCKDEP_SUPPORT=y 17CONFIG_LOCKDEP_SUPPORT=y
12CONFIG_STACKTRACE_SUPPORT=y 18CONFIG_STACKTRACE_SUPPORT=y
13CONFIG_SEMAPHORE_SLEEPERS=y 19CONFIG_HAVE_LATENCYTOP_SUPPORT=y
14CONFIG_X86=y 20CONFIG_FAST_CMPXCHG_LOCAL=y
15CONFIG_MMU=y 21CONFIG_MMU=y
16CONFIG_ZONE_DMA=y 22CONFIG_ZONE_DMA=y
17CONFIG_QUICKLIST=y
18CONFIG_GENERIC_ISA_DMA=y 23CONFIG_GENERIC_ISA_DMA=y
19CONFIG_GENERIC_IOMAP=y 24CONFIG_GENERIC_IOMAP=y
20CONFIG_GENERIC_BUG=y 25CONFIG_GENERIC_BUG=y
21CONFIG_GENERIC_HWEIGHT=y 26CONFIG_GENERIC_HWEIGHT=y
27# CONFIG_GENERIC_GPIO is not set
22CONFIG_ARCH_MAY_HAVE_PC_FDC=y 28CONFIG_ARCH_MAY_HAVE_PC_FDC=y
23CONFIG_DMI=y 29# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
24CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" 30CONFIG_RWSEM_XCHGADD_ALGORITHM=y
31# CONFIG_ARCH_HAS_ILOG2_U32 is not set
32# CONFIG_ARCH_HAS_ILOG2_U64 is not set
33CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
34CONFIG_GENERIC_CALIBRATE_DELAY=y
35# CONFIG_GENERIC_TIME_VSYSCALL is not set
36CONFIG_ARCH_HAS_CPU_RELAX=y
37CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
38CONFIG_HAVE_SETUP_PER_CPU_AREA=y
39# CONFIG_HAVE_CPUMASK_OF_CPU_MAP is not set
40CONFIG_ARCH_HIBERNATION_POSSIBLE=y
41CONFIG_ARCH_SUSPEND_POSSIBLE=y
42# CONFIG_ZONE_DMA32 is not set
43CONFIG_ARCH_POPULATES_NODE_MAP=y
44# CONFIG_AUDIT_ARCH is not set
45CONFIG_ARCH_SUPPORTS_AOUT=y
46CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
47CONFIG_GENERIC_HARDIRQS=y
48CONFIG_GENERIC_IRQ_PROBE=y
49CONFIG_GENERIC_PENDING_IRQ=y
50CONFIG_X86_SMP=y
51CONFIG_X86_32_SMP=y
52CONFIG_X86_HT=y
53CONFIG_X86_BIOS_REBOOT=y
54CONFIG_X86_TRAMPOLINE=y
55CONFIG_KTIME_SCALAR=y
25 56
26# 57#
27# Code maturity level options 58# General setup
28# 59#
29CONFIG_EXPERIMENTAL=y 60CONFIG_EXPERIMENTAL=y
30CONFIG_LOCK_KERNEL=y 61CONFIG_LOCK_KERNEL=y
31CONFIG_INIT_ENV_ARG_LIMIT=32 62CONFIG_INIT_ENV_ARG_LIMIT=32
32
33#
34# General setup
35#
36CONFIG_LOCALVERSION="" 63CONFIG_LOCALVERSION=""
37CONFIG_LOCALVERSION_AUTO=y 64# CONFIG_LOCALVERSION_AUTO is not set
38CONFIG_SWAP=y 65CONFIG_SWAP=y
39CONFIG_SYSVIPC=y 66CONFIG_SYSVIPC=y
40CONFIG_SYSVIPC_SYSCTL=y 67CONFIG_SYSVIPC_SYSCTL=y
41CONFIG_POSIX_MQUEUE=y 68CONFIG_POSIX_MQUEUE=y
42# CONFIG_BSD_PROCESS_ACCT is not set 69CONFIG_BSD_PROCESS_ACCT=y
43# CONFIG_TASKSTATS is not set 70# CONFIG_BSD_PROCESS_ACCT_V3 is not set
44# CONFIG_USER_NS is not set 71CONFIG_TASKSTATS=y
45# CONFIG_AUDIT is not set 72CONFIG_TASK_DELAY_ACCT=y
46CONFIG_IKCONFIG=y 73CONFIG_TASK_XACCT=y
47CONFIG_IKCONFIG_PROC=y 74CONFIG_TASK_IO_ACCOUNTING=y
48CONFIG_LOG_BUF_SHIFT=18 75CONFIG_AUDIT=y
49# CONFIG_CPUSETS is not set 76CONFIG_AUDITSYSCALL=y
50CONFIG_SYSFS_DEPRECATED=y 77CONFIG_AUDIT_TREE=y
78# CONFIG_IKCONFIG is not set
79CONFIG_LOG_BUF_SHIFT=17
80CONFIG_CGROUPS=y
81# CONFIG_CGROUP_DEBUG is not set
82CONFIG_CGROUP_NS=y
83# CONFIG_CGROUP_DEVICE is not set
84CONFIG_CPUSETS=y
85CONFIG_GROUP_SCHED=y
86CONFIG_FAIR_GROUP_SCHED=y
87# CONFIG_RT_GROUP_SCHED is not set
88# CONFIG_USER_SCHED is not set
89CONFIG_CGROUP_SCHED=y
90CONFIG_CGROUP_CPUACCT=y
91CONFIG_RESOURCE_COUNTERS=y
92# CONFIG_CGROUP_MEM_RES_CTLR is not set
93# CONFIG_SYSFS_DEPRECATED_V2 is not set
94CONFIG_PROC_PID_CPUSET=y
51CONFIG_RELAY=y 95CONFIG_RELAY=y
96CONFIG_NAMESPACES=y
97CONFIG_UTS_NS=y
98CONFIG_IPC_NS=y
99CONFIG_USER_NS=y
100CONFIG_PID_NS=y
52CONFIG_BLK_DEV_INITRD=y 101CONFIG_BLK_DEV_INITRD=y
53CONFIG_INITRAMFS_SOURCE="" 102CONFIG_INITRAMFS_SOURCE=""
54CONFIG_CC_OPTIMIZE_FOR_SIZE=y 103CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -56,13 +105,15 @@ CONFIG_SYSCTL=y
56# CONFIG_EMBEDDED is not set 105# CONFIG_EMBEDDED is not set
57CONFIG_UID16=y 106CONFIG_UID16=y
58CONFIG_SYSCTL_SYSCALL=y 107CONFIG_SYSCTL_SYSCALL=y
108CONFIG_SYSCTL_SYSCALL_CHECK=y
59CONFIG_KALLSYMS=y 109CONFIG_KALLSYMS=y
60CONFIG_KALLSYMS_ALL=y 110CONFIG_KALLSYMS_ALL=y
61# CONFIG_KALLSYMS_EXTRA_PASS is not set 111CONFIG_KALLSYMS_EXTRA_PASS=y
62CONFIG_HOTPLUG=y 112CONFIG_HOTPLUG=y
63CONFIG_PRINTK=y 113CONFIG_PRINTK=y
64CONFIG_BUG=y 114CONFIG_BUG=y
65CONFIG_ELF_CORE=y 115CONFIG_ELF_CORE=y
116# CONFIG_COMPAT_BRK is not set
66CONFIG_BASE_FULL=y 117CONFIG_BASE_FULL=y
67CONFIG_FUTEX=y 118CONFIG_FUTEX=y
68CONFIG_ANON_INODES=y 119CONFIG_ANON_INODES=y
@@ -76,6 +127,17 @@ CONFIG_SLUB_DEBUG=y
76# CONFIG_SLAB is not set 127# CONFIG_SLAB is not set
77CONFIG_SLUB=y 128CONFIG_SLUB=y
78# CONFIG_SLOB is not set 129# CONFIG_SLOB is not set
130CONFIG_PROFILING=y
131CONFIG_MARKERS=y
132# CONFIG_OPROFILE is not set
133CONFIG_HAVE_OPROFILE=y
134CONFIG_KPROBES=y
135CONFIG_KRETPROBES=y
136CONFIG_HAVE_KPROBES=y
137CONFIG_HAVE_KRETPROBES=y
138# CONFIG_HAVE_DMA_ATTRS is not set
139CONFIG_PROC_PAGE_MONITOR=y
140CONFIG_SLABINFO=y
79CONFIG_RT_MUTEXES=y 141CONFIG_RT_MUTEXES=y
80# CONFIG_TINY_SHMEM is not set 142# CONFIG_TINY_SHMEM is not set
81CONFIG_BASE_SMALL=0 143CONFIG_BASE_SMALL=0
@@ -87,10 +149,10 @@ CONFIG_MODULE_FORCE_UNLOAD=y
87# CONFIG_KMOD is not set 149# CONFIG_KMOD is not set
88CONFIG_STOP_MACHINE=y 150CONFIG_STOP_MACHINE=y
89CONFIG_BLOCK=y 151CONFIG_BLOCK=y
90CONFIG_LBD=y 152# CONFIG_LBD is not set
91# CONFIG_BLK_DEV_IO_TRACE is not set 153CONFIG_BLK_DEV_IO_TRACE=y
92# CONFIG_LSF is not set 154# CONFIG_LSF is not set
93# CONFIG_BLK_DEV_BSG is not set 155CONFIG_BLK_DEV_BSG=y
94 156
95# 157#
96# IO Schedulers 158# IO Schedulers
@@ -103,7 +165,8 @@ CONFIG_IOSCHED_CFQ=y
103# CONFIG_DEFAULT_DEADLINE is not set 165# CONFIG_DEFAULT_DEADLINE is not set
104CONFIG_DEFAULT_CFQ=y 166CONFIG_DEFAULT_CFQ=y
105# CONFIG_DEFAULT_NOOP is not set 167# CONFIG_DEFAULT_NOOP is not set
106CONFIG_DEFAULT_IOSCHED="anticipatory" 168CONFIG_DEFAULT_IOSCHED="cfq"
169CONFIG_CLASSIC_RCU=y
107 170
108# 171#
109# Processor type and features 172# Processor type and features
@@ -111,18 +174,21 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
111CONFIG_TICK_ONESHOT=y 174CONFIG_TICK_ONESHOT=y
112CONFIG_NO_HZ=y 175CONFIG_NO_HZ=y
113CONFIG_HIGH_RES_TIMERS=y 176CONFIG_HIGH_RES_TIMERS=y
177CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
114CONFIG_SMP=y 178CONFIG_SMP=y
115# CONFIG_X86_PC is not set 179CONFIG_X86_PC=y
116# CONFIG_X86_ELAN is not set 180# CONFIG_X86_ELAN is not set
117# CONFIG_X86_VOYAGER is not set 181# CONFIG_X86_VOYAGER is not set
118# CONFIG_X86_NUMAQ is not set 182# CONFIG_X86_NUMAQ is not set
119# CONFIG_X86_SUMMIT is not set 183# CONFIG_X86_SUMMIT is not set
120# CONFIG_X86_BIGSMP is not set 184# CONFIG_X86_BIGSMP is not set
121# CONFIG_X86_VISWS is not set 185# CONFIG_X86_VISWS is not set
122CONFIG_X86_GENERICARCH=y 186# CONFIG_X86_GENERICARCH is not set
123# CONFIG_X86_ES7000 is not set 187# CONFIG_X86_ES7000 is not set
124# CONFIG_PARAVIRT is not set 188# CONFIG_X86_RDC321X is not set
125CONFIG_X86_CYCLONE_TIMER=y 189# CONFIG_X86_VSMP is not set
190CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
191# CONFIG_PARAVIRT_GUEST is not set
126# CONFIG_M386 is not set 192# CONFIG_M386 is not set
127# CONFIG_M486 is not set 193# CONFIG_M486 is not set
128# CONFIG_M586 is not set 194# CONFIG_M586 is not set
@@ -130,9 +196,8 @@ CONFIG_X86_CYCLONE_TIMER=y
130# CONFIG_M586MMX is not set 196# CONFIG_M586MMX is not set
131# CONFIG_M686 is not set 197# CONFIG_M686 is not set
132# CONFIG_MPENTIUMII is not set 198# CONFIG_MPENTIUMII is not set
133CONFIG_MPENTIUMIII=y 199# CONFIG_MPENTIUMIII is not set
134# CONFIG_MPENTIUMM is not set 200# CONFIG_MPENTIUMM is not set
135# CONFIG_MCORE2 is not set
136# CONFIG_MPENTIUM4 is not set 201# CONFIG_MPENTIUM4 is not set
137# CONFIG_MK6 is not set 202# CONFIG_MK6 is not set
138# CONFIG_MK7 is not set 203# CONFIG_MK7 is not set
@@ -147,14 +212,14 @@ CONFIG_MPENTIUMIII=y
147# CONFIG_MCYRIXIII is not set 212# CONFIG_MCYRIXIII is not set
148# CONFIG_MVIAC3_2 is not set 213# CONFIG_MVIAC3_2 is not set
149# CONFIG_MVIAC7 is not set 214# CONFIG_MVIAC7 is not set
150CONFIG_X86_GENERIC=y 215# CONFIG_MPSC is not set
216CONFIG_MCORE2=y
217# CONFIG_GENERIC_CPU is not set
218# CONFIG_X86_GENERIC is not set
219CONFIG_X86_CPU=y
151CONFIG_X86_CMPXCHG=y 220CONFIG_X86_CMPXCHG=y
152CONFIG_X86_L1_CACHE_SHIFT=7 221CONFIG_X86_L1_CACHE_SHIFT=6
153CONFIG_X86_XADD=y 222CONFIG_X86_XADD=y
154CONFIG_RWSEM_XCHGADD_ALGORITHM=y
155# CONFIG_ARCH_HAS_ILOG2_U32 is not set
156# CONFIG_ARCH_HAS_ILOG2_U64 is not set
157CONFIG_GENERIC_CALIBRATE_DELAY=y
158CONFIG_X86_WP_WORKS_OK=y 223CONFIG_X86_WP_WORKS_OK=y
159CONFIG_X86_INVLPG=y 224CONFIG_X86_INVLPG=y
160CONFIG_X86_BSWAP=y 225CONFIG_X86_BSWAP=y
@@ -162,106 +227,120 @@ CONFIG_X86_POPAD_OK=y
162CONFIG_X86_GOOD_APIC=y 227CONFIG_X86_GOOD_APIC=y
163CONFIG_X86_INTEL_USERCOPY=y 228CONFIG_X86_INTEL_USERCOPY=y
164CONFIG_X86_USE_PPRO_CHECKSUM=y 229CONFIG_X86_USE_PPRO_CHECKSUM=y
230CONFIG_X86_P6_NOP=y
165CONFIG_X86_TSC=y 231CONFIG_X86_TSC=y
166CONFIG_X86_CMOV=y 232CONFIG_X86_MINIMUM_CPU_FAMILY=6
167CONFIG_X86_MINIMUM_CPU_FAMILY=4 233CONFIG_X86_DEBUGCTLMSR=y
168CONFIG_HPET_TIMER=y 234CONFIG_HPET_TIMER=y
169CONFIG_HPET_EMULATE_RTC=y 235CONFIG_HPET_EMULATE_RTC=y
170CONFIG_NR_CPUS=32 236CONFIG_DMI=y
171CONFIG_SCHED_SMT=y 237# CONFIG_IOMMU_HELPER is not set
238CONFIG_NR_CPUS=4
239# CONFIG_SCHED_SMT is not set
172CONFIG_SCHED_MC=y 240CONFIG_SCHED_MC=y
173# CONFIG_PREEMPT_NONE is not set 241# CONFIG_PREEMPT_NONE is not set
174CONFIG_PREEMPT_VOLUNTARY=y 242CONFIG_PREEMPT_VOLUNTARY=y
175# CONFIG_PREEMPT is not set 243# CONFIG_PREEMPT is not set
176CONFIG_PREEMPT_BKL=y
177CONFIG_X86_LOCAL_APIC=y 244CONFIG_X86_LOCAL_APIC=y
178CONFIG_X86_IO_APIC=y 245CONFIG_X86_IO_APIC=y
179CONFIG_X86_MCE=y 246# CONFIG_X86_MCE is not set
180CONFIG_X86_MCE_NONFATAL=y
181CONFIG_X86_MCE_P4THERMAL=y
182CONFIG_VM86=y 247CONFIG_VM86=y
183# CONFIG_TOSHIBA is not set 248# CONFIG_TOSHIBA is not set
184# CONFIG_I8K is not set 249# CONFIG_I8K is not set
185# CONFIG_X86_REBOOTFIXUPS is not set 250# CONFIG_X86_REBOOTFIXUPS is not set
186CONFIG_MICROCODE=y 251# CONFIG_MICROCODE is not set
187CONFIG_MICROCODE_OLD_INTERFACE=y
188CONFIG_X86_MSR=y 252CONFIG_X86_MSR=y
189CONFIG_X86_CPUID=y 253CONFIG_X86_CPUID=y
190
191#
192# Firmware Drivers
193#
194# CONFIG_EDD is not set
195# CONFIG_DELL_RBU is not set
196# CONFIG_DCDBAS is not set
197CONFIG_DMIID=y
198# CONFIG_NOHIGHMEM is not set 254# CONFIG_NOHIGHMEM is not set
199CONFIG_HIGHMEM4G=y 255CONFIG_HIGHMEM4G=y
200# CONFIG_HIGHMEM64G is not set 256# CONFIG_HIGHMEM64G is not set
201CONFIG_PAGE_OFFSET=0xC0000000 257CONFIG_PAGE_OFFSET=0xC0000000
202CONFIG_HIGHMEM=y 258CONFIG_HIGHMEM=y
203CONFIG_ARCH_POPULATES_NODE_MAP=y 259CONFIG_NEED_NODE_MEMMAP_SIZE=y
260CONFIG_ARCH_FLATMEM_ENABLE=y
261CONFIG_ARCH_SPARSEMEM_ENABLE=y
262CONFIG_ARCH_SELECT_MEMORY_MODEL=y
204CONFIG_SELECT_MEMORY_MODEL=y 263CONFIG_SELECT_MEMORY_MODEL=y
205CONFIG_FLATMEM_MANUAL=y 264# CONFIG_FLATMEM_MANUAL is not set
206# CONFIG_DISCONTIGMEM_MANUAL is not set 265# CONFIG_DISCONTIGMEM_MANUAL is not set
207# CONFIG_SPARSEMEM_MANUAL is not set 266CONFIG_SPARSEMEM_MANUAL=y
208CONFIG_FLATMEM=y 267CONFIG_SPARSEMEM=y
209CONFIG_FLAT_NODE_MEM_MAP=y 268CONFIG_HAVE_MEMORY_PRESENT=y
210# CONFIG_SPARSEMEM_STATIC is not set 269CONFIG_SPARSEMEM_STATIC=y
270# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
271
272#
273# Memory hotplug is currently incompatible with Software Suspend
274#
275CONFIG_PAGEFLAGS_EXTENDED=y
211CONFIG_SPLIT_PTLOCK_CPUS=4 276CONFIG_SPLIT_PTLOCK_CPUS=4
212CONFIG_RESOURCES_64BIT=y 277CONFIG_RESOURCES_64BIT=y
213CONFIG_ZONE_DMA_FLAG=1 278CONFIG_ZONE_DMA_FLAG=1
214CONFIG_BOUNCE=y 279CONFIG_BOUNCE=y
215CONFIG_NR_QUICK=1
216CONFIG_VIRT_TO_BUS=y 280CONFIG_VIRT_TO_BUS=y
217# CONFIG_HIGHPTE is not set 281# CONFIG_HIGHPTE is not set
218# CONFIG_MATH_EMULATION is not set 282# CONFIG_MATH_EMULATION is not set
219CONFIG_MTRR=y 283CONFIG_MTRR=y
220# CONFIG_EFI is not set 284# CONFIG_X86_PAT is not set
285CONFIG_EFI=y
221# CONFIG_IRQBALANCE is not set 286# CONFIG_IRQBALANCE is not set
222CONFIG_SECCOMP=y 287CONFIG_SECCOMP=y
223# CONFIG_HZ_100 is not set 288# CONFIG_HZ_100 is not set
224CONFIG_HZ_250=y 289# CONFIG_HZ_250 is not set
225# CONFIG_HZ_300 is not set 290# CONFIG_HZ_300 is not set
226# CONFIG_HZ_1000 is not set 291CONFIG_HZ_1000=y
227CONFIG_HZ=250 292CONFIG_HZ=1000
228# CONFIG_KEXEC is not set 293CONFIG_SCHED_HRTICK=y
229# CONFIG_CRASH_DUMP is not set 294CONFIG_KEXEC=y
230CONFIG_PHYSICAL_START=0x100000 295CONFIG_CRASH_DUMP=y
231# CONFIG_RELOCATABLE is not set 296CONFIG_PHYSICAL_START=0x1000000
232CONFIG_PHYSICAL_ALIGN=0x100000 297CONFIG_RELOCATABLE=y
233# CONFIG_HOTPLUG_CPU is not set 298CONFIG_PHYSICAL_ALIGN=0x200000
234CONFIG_COMPAT_VDSO=y 299CONFIG_HOTPLUG_CPU=y
300# CONFIG_COMPAT_VDSO is not set
235CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y 301CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
236 302
237# 303#
238# Power management options (ACPI, APM) 304# Power management options
239# 305#
240CONFIG_PM=y 306CONFIG_PM=y
241CONFIG_PM_LEGACY=y 307CONFIG_PM_DEBUG=y
242# CONFIG_PM_DEBUG is not set 308# CONFIG_PM_VERBOSE is not set
243 309CONFIG_CAN_PM_TRACE=y
244# 310CONFIG_PM_TRACE=y
245# ACPI (Advanced Configuration and Power Interface) Support 311CONFIG_PM_TRACE_RTC=y
246# 312CONFIG_PM_SLEEP_SMP=y
313CONFIG_PM_SLEEP=y
314CONFIG_SUSPEND=y
315CONFIG_SUSPEND_FREEZER=y
316CONFIG_HIBERNATION=y
317CONFIG_PM_STD_PARTITION=""
247CONFIG_ACPI=y 318CONFIG_ACPI=y
319CONFIG_ACPI_SLEEP=y
248CONFIG_ACPI_PROCFS=y 320CONFIG_ACPI_PROCFS=y
321CONFIG_ACPI_PROCFS_POWER=y
322CONFIG_ACPI_SYSFS_POWER=y
323CONFIG_ACPI_PROC_EVENT=y
249CONFIG_ACPI_AC=y 324CONFIG_ACPI_AC=y
250CONFIG_ACPI_BATTERY=y 325CONFIG_ACPI_BATTERY=y
251CONFIG_ACPI_BUTTON=y 326CONFIG_ACPI_BUTTON=y
252CONFIG_ACPI_FAN=y 327CONFIG_ACPI_FAN=y
253# CONFIG_ACPI_DOCK is not set 328CONFIG_ACPI_DOCK=y
329# CONFIG_ACPI_BAY is not set
254CONFIG_ACPI_PROCESSOR=y 330CONFIG_ACPI_PROCESSOR=y
331CONFIG_ACPI_HOTPLUG_CPU=y
255CONFIG_ACPI_THERMAL=y 332CONFIG_ACPI_THERMAL=y
333# CONFIG_ACPI_WMI is not set
256# CONFIG_ACPI_ASUS is not set 334# CONFIG_ACPI_ASUS is not set
257# CONFIG_ACPI_TOSHIBA is not set 335# CONFIG_ACPI_TOSHIBA is not set
258CONFIG_ACPI_BLACKLIST_YEAR=2001 336# CONFIG_ACPI_CUSTOM_DSDT is not set
259CONFIG_ACPI_DEBUG=y 337CONFIG_ACPI_BLACKLIST_YEAR=0
338# CONFIG_ACPI_DEBUG is not set
260CONFIG_ACPI_EC=y 339CONFIG_ACPI_EC=y
261CONFIG_ACPI_POWER=y 340CONFIG_ACPI_POWER=y
262CONFIG_ACPI_SYSTEM=y 341CONFIG_ACPI_SYSTEM=y
263CONFIG_X86_PM_TIMER=y 342CONFIG_X86_PM_TIMER=y
264# CONFIG_ACPI_CONTAINER is not set 343CONFIG_ACPI_CONTAINER=y
265# CONFIG_ACPI_SBS is not set 344# CONFIG_ACPI_SBS is not set
266# CONFIG_APM is not set 345# CONFIG_APM is not set
267 346
@@ -271,15 +350,17 @@ CONFIG_X86_PM_TIMER=y
271CONFIG_CPU_FREQ=y 350CONFIG_CPU_FREQ=y
272CONFIG_CPU_FREQ_TABLE=y 351CONFIG_CPU_FREQ_TABLE=y
273CONFIG_CPU_FREQ_DEBUG=y 352CONFIG_CPU_FREQ_DEBUG=y
274CONFIG_CPU_FREQ_STAT=y 353# CONFIG_CPU_FREQ_STAT is not set
275# CONFIG_CPU_FREQ_STAT_DETAILS is not set 354# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
276CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y 355# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
277# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set 356CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
357# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
358# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
278CONFIG_CPU_FREQ_GOV_PERFORMANCE=y 359CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
279# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set 360# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
280CONFIG_CPU_FREQ_GOV_USERSPACE=y 361CONFIG_CPU_FREQ_GOV_USERSPACE=y
281CONFIG_CPU_FREQ_GOV_ONDEMAND=y 362CONFIG_CPU_FREQ_GOV_ONDEMAND=y
282CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y 363# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
283 364
284# 365#
285# CPUFreq processor drivers 366# CPUFreq processor drivers
@@ -287,8 +368,7 @@ CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
287CONFIG_X86_ACPI_CPUFREQ=y 368CONFIG_X86_ACPI_CPUFREQ=y
288# CONFIG_X86_POWERNOW_K6 is not set 369# CONFIG_X86_POWERNOW_K6 is not set
289# CONFIG_X86_POWERNOW_K7 is not set 370# CONFIG_X86_POWERNOW_K7 is not set
290CONFIG_X86_POWERNOW_K8=y 371# CONFIG_X86_POWERNOW_K8 is not set
291CONFIG_X86_POWERNOW_K8_ACPI=y
292# CONFIG_X86_GX_SUSPMOD is not set 372# CONFIG_X86_GX_SUSPMOD is not set
293# CONFIG_X86_SPEEDSTEP_CENTRINO is not set 373# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
294# CONFIG_X86_SPEEDSTEP_ICH is not set 374# CONFIG_X86_SPEEDSTEP_ICH is not set
@@ -302,43 +382,72 @@ CONFIG_X86_POWERNOW_K8_ACPI=y
302# 382#
303# shared options 383# shared options
304# 384#
305CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y 385# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
306# CONFIG_X86_SPEEDSTEP_LIB is not set 386# CONFIG_X86_SPEEDSTEP_LIB is not set
387CONFIG_CPU_IDLE=y
388CONFIG_CPU_IDLE_GOV_LADDER=y
389CONFIG_CPU_IDLE_GOV_MENU=y
307 390
308# 391#
309# Bus options (PCI, PCMCIA, EISA, MCA, ISA) 392# Bus options (PCI etc.)
310# 393#
311CONFIG_PCI=y 394CONFIG_PCI=y
312# CONFIG_PCI_GOBIOS is not set 395# CONFIG_PCI_GOBIOS is not set
313# CONFIG_PCI_GOMMCONFIG is not set 396# CONFIG_PCI_GOMMCONFIG is not set
314# CONFIG_PCI_GODIRECT is not set 397# CONFIG_PCI_GODIRECT is not set
315CONFIG_PCI_GOANY=y 398CONFIG_PCI_GOANY=y
399# CONFIG_PCI_GOOLPC is not set
316CONFIG_PCI_BIOS=y 400CONFIG_PCI_BIOS=y
317CONFIG_PCI_DIRECT=y 401CONFIG_PCI_DIRECT=y
318CONFIG_PCI_MMCONFIG=y 402CONFIG_PCI_MMCONFIG=y
319# CONFIG_PCIEPORTBUS is not set 403CONFIG_PCI_DOMAINS=y
404CONFIG_PCIEPORTBUS=y
405# CONFIG_HOTPLUG_PCI_PCIE is not set
406CONFIG_PCIEAER=y
407# CONFIG_PCIEASPM is not set
320CONFIG_ARCH_SUPPORTS_MSI=y 408CONFIG_ARCH_SUPPORTS_MSI=y
321CONFIG_PCI_MSI=y 409CONFIG_PCI_MSI=y
410# CONFIG_PCI_LEGACY is not set
322# CONFIG_PCI_DEBUG is not set 411# CONFIG_PCI_DEBUG is not set
323# CONFIG_HT_IRQ is not set 412CONFIG_HT_IRQ=y
324CONFIG_ISA_DMA_API=y 413CONFIG_ISA_DMA_API=y
325# CONFIG_ISA is not set 414# CONFIG_ISA is not set
326# CONFIG_MCA is not set 415# CONFIG_MCA is not set
327# CONFIG_SCx200 is not set 416# CONFIG_SCx200 is not set
417# CONFIG_OLPC is not set
328CONFIG_K8_NB=y 418CONFIG_K8_NB=y
329 419CONFIG_PCCARD=y
330# 420# CONFIG_PCMCIA_DEBUG is not set
331# PCCARD (PCMCIA/CardBus) support 421CONFIG_PCMCIA=y
332# 422CONFIG_PCMCIA_LOAD_CIS=y
333# CONFIG_PCCARD is not set 423CONFIG_PCMCIA_IOCTL=y
334# CONFIG_HOTPLUG_PCI is not set 424CONFIG_CARDBUS=y
335 425
336# 426#
337# Executable file formats 427# PC-card bridges
428#
429CONFIG_YENTA=y
430CONFIG_YENTA_O2=y
431CONFIG_YENTA_RICOH=y
432CONFIG_YENTA_TI=y
433CONFIG_YENTA_ENE_TUNE=y
434CONFIG_YENTA_TOSHIBA=y
435# CONFIG_PD6729 is not set
436# CONFIG_I82092 is not set
437CONFIG_PCCARD_NONSTATIC=y
438CONFIG_HOTPLUG_PCI=y
439# CONFIG_HOTPLUG_PCI_FAKE is not set
440# CONFIG_HOTPLUG_PCI_IBM is not set
441# CONFIG_HOTPLUG_PCI_ACPI is not set
442# CONFIG_HOTPLUG_PCI_CPCI is not set
443# CONFIG_HOTPLUG_PCI_SHPC is not set
444
445#
446# Executable file formats / Emulations
338# 447#
339CONFIG_BINFMT_ELF=y 448CONFIG_BINFMT_ELF=y
340# CONFIG_BINFMT_AOUT is not set 449# CONFIG_BINFMT_AOUT is not set
341# CONFIG_BINFMT_MISC is not set 450CONFIG_BINFMT_MISC=y
342 451
343# 452#
344# Networking 453# Networking
@@ -349,59 +458,142 @@ CONFIG_NET=y
349# Networking options 458# Networking options
350# 459#
351CONFIG_PACKET=y 460CONFIG_PACKET=y
352# CONFIG_PACKET_MMAP is not set 461CONFIG_PACKET_MMAP=y
353CONFIG_UNIX=y 462CONFIG_UNIX=y
354CONFIG_XFRM=y 463CONFIG_XFRM=y
355# CONFIG_XFRM_USER is not set 464CONFIG_XFRM_USER=y
356# CONFIG_XFRM_SUB_POLICY is not set 465# CONFIG_XFRM_SUB_POLICY is not set
357# CONFIG_XFRM_MIGRATE is not set 466# CONFIG_XFRM_MIGRATE is not set
467# CONFIG_XFRM_STATISTICS is not set
358# CONFIG_NET_KEY is not set 468# CONFIG_NET_KEY is not set
359CONFIG_INET=y 469CONFIG_INET=y
360CONFIG_IP_MULTICAST=y 470CONFIG_IP_MULTICAST=y
361# CONFIG_IP_ADVANCED_ROUTER is not set 471CONFIG_IP_ADVANCED_ROUTER=y
472CONFIG_ASK_IP_FIB_HASH=y
473# CONFIG_IP_FIB_TRIE is not set
362CONFIG_IP_FIB_HASH=y 474CONFIG_IP_FIB_HASH=y
363CONFIG_IP_PNP=y 475CONFIG_IP_MULTIPLE_TABLES=y
364CONFIG_IP_PNP_DHCP=y 476CONFIG_IP_ROUTE_MULTIPATH=y
365# CONFIG_IP_PNP_BOOTP is not set 477CONFIG_IP_ROUTE_VERBOSE=y
366# CONFIG_IP_PNP_RARP is not set 478# CONFIG_IP_PNP is not set
367# CONFIG_NET_IPIP is not set 479# CONFIG_NET_IPIP is not set
368# CONFIG_NET_IPGRE is not set 480# CONFIG_NET_IPGRE is not set
369# CONFIG_IP_MROUTE is not set 481CONFIG_IP_MROUTE=y
482CONFIG_IP_PIMSM_V1=y
483CONFIG_IP_PIMSM_V2=y
370# CONFIG_ARPD is not set 484# CONFIG_ARPD is not set
371# CONFIG_SYN_COOKIES is not set 485CONFIG_SYN_COOKIES=y
372# CONFIG_INET_AH is not set 486# CONFIG_INET_AH is not set
373# CONFIG_INET_ESP is not set 487# CONFIG_INET_ESP is not set
374# CONFIG_INET_IPCOMP is not set 488# CONFIG_INET_IPCOMP is not set
375# CONFIG_INET_XFRM_TUNNEL is not set 489# CONFIG_INET_XFRM_TUNNEL is not set
376CONFIG_INET_TUNNEL=y 490CONFIG_INET_TUNNEL=y
377CONFIG_INET_XFRM_MODE_TRANSPORT=y 491# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
378CONFIG_INET_XFRM_MODE_TUNNEL=y 492# CONFIG_INET_XFRM_MODE_TUNNEL is not set
379# CONFIG_INET_XFRM_MODE_BEET is not set 493# CONFIG_INET_XFRM_MODE_BEET is not set
380CONFIG_INET_DIAG=y 494CONFIG_INET_LRO=y
381CONFIG_INET_TCP_DIAG=y 495# CONFIG_INET_DIAG is not set
382# CONFIG_TCP_CONG_ADVANCED is not set 496CONFIG_TCP_CONG_ADVANCED=y
497# CONFIG_TCP_CONG_BIC is not set
383CONFIG_TCP_CONG_CUBIC=y 498CONFIG_TCP_CONG_CUBIC=y
499# CONFIG_TCP_CONG_WESTWOOD is not set
500# CONFIG_TCP_CONG_HTCP is not set
501# CONFIG_TCP_CONG_HSTCP is not set
502# CONFIG_TCP_CONG_HYBLA is not set
503# CONFIG_TCP_CONG_VEGAS is not set
504# CONFIG_TCP_CONG_SCALABLE is not set
505# CONFIG_TCP_CONG_LP is not set
506# CONFIG_TCP_CONG_VENO is not set
507# CONFIG_TCP_CONG_YEAH is not set
508# CONFIG_TCP_CONG_ILLINOIS is not set
509# CONFIG_DEFAULT_BIC is not set
510CONFIG_DEFAULT_CUBIC=y
511# CONFIG_DEFAULT_HTCP is not set
512# CONFIG_DEFAULT_VEGAS is not set
513# CONFIG_DEFAULT_WESTWOOD is not set
514# CONFIG_DEFAULT_RENO is not set
384CONFIG_DEFAULT_TCP_CONG="cubic" 515CONFIG_DEFAULT_TCP_CONG="cubic"
385# CONFIG_TCP_MD5SIG is not set 516CONFIG_TCP_MD5SIG=y
517# CONFIG_IP_VS is not set
386CONFIG_IPV6=y 518CONFIG_IPV6=y
387# CONFIG_IPV6_PRIVACY is not set 519# CONFIG_IPV6_PRIVACY is not set
388# CONFIG_IPV6_ROUTER_PREF is not set 520# CONFIG_IPV6_ROUTER_PREF is not set
389# CONFIG_IPV6_OPTIMISTIC_DAD is not set 521# CONFIG_IPV6_OPTIMISTIC_DAD is not set
390# CONFIG_INET6_AH is not set 522CONFIG_INET6_AH=y
391# CONFIG_INET6_ESP is not set 523CONFIG_INET6_ESP=y
392# CONFIG_INET6_IPCOMP is not set 524# CONFIG_INET6_IPCOMP is not set
393# CONFIG_IPV6_MIP6 is not set 525# CONFIG_IPV6_MIP6 is not set
394# CONFIG_INET6_XFRM_TUNNEL is not set 526# CONFIG_INET6_XFRM_TUNNEL is not set
395# CONFIG_INET6_TUNNEL is not set 527# CONFIG_INET6_TUNNEL is not set
396CONFIG_INET6_XFRM_MODE_TRANSPORT=y 528CONFIG_INET6_XFRM_MODE_TRANSPORT=y
397CONFIG_INET6_XFRM_MODE_TUNNEL=y 529CONFIG_INET6_XFRM_MODE_TUNNEL=y
398# CONFIG_INET6_XFRM_MODE_BEET is not set 530CONFIG_INET6_XFRM_MODE_BEET=y
399# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set 531# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
400CONFIG_IPV6_SIT=y 532CONFIG_IPV6_SIT=y
533CONFIG_IPV6_NDISC_NODETYPE=y
401# CONFIG_IPV6_TUNNEL is not set 534# CONFIG_IPV6_TUNNEL is not set
402# CONFIG_IPV6_MULTIPLE_TABLES is not set 535# CONFIG_IPV6_MULTIPLE_TABLES is not set
403# CONFIG_NETWORK_SECMARK is not set 536# CONFIG_IPV6_MROUTE is not set
404# CONFIG_NETFILTER is not set 537CONFIG_NETLABEL=y
538CONFIG_NETWORK_SECMARK=y
539CONFIG_NETFILTER=y
540# CONFIG_NETFILTER_DEBUG is not set
541# CONFIG_NETFILTER_ADVANCED is not set
542
543#
544# Core Netfilter Configuration
545#
546CONFIG_NETFILTER_NETLINK=y
547CONFIG_NETFILTER_NETLINK_LOG=y
548CONFIG_NF_CONNTRACK=y
549CONFIG_NF_CONNTRACK_SECMARK=y
550CONFIG_NF_CONNTRACK_FTP=y
551CONFIG_NF_CONNTRACK_IRC=y
552CONFIG_NF_CONNTRACK_SIP=y
553CONFIG_NF_CT_NETLINK=y
554CONFIG_NETFILTER_XTABLES=y
555CONFIG_NETFILTER_XT_TARGET_MARK=y
556CONFIG_NETFILTER_XT_TARGET_NFLOG=y
557CONFIG_NETFILTER_XT_TARGET_SECMARK=y
558CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
559CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
560CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
561CONFIG_NETFILTER_XT_MATCH_MARK=y
562CONFIG_NETFILTER_XT_MATCH_POLICY=y
563CONFIG_NETFILTER_XT_MATCH_STATE=y
564
565#
566# IP: Netfilter Configuration
567#
568CONFIG_NF_CONNTRACK_IPV4=y
569CONFIG_NF_CONNTRACK_PROC_COMPAT=y
570CONFIG_IP_NF_IPTABLES=y
571CONFIG_IP_NF_FILTER=y
572CONFIG_IP_NF_TARGET_REJECT=y
573CONFIG_IP_NF_TARGET_LOG=y
574CONFIG_IP_NF_TARGET_ULOG=y
575CONFIG_NF_NAT=y
576CONFIG_NF_NAT_NEEDED=y
577CONFIG_IP_NF_TARGET_MASQUERADE=y
578CONFIG_NF_NAT_FTP=y
579CONFIG_NF_NAT_IRC=y
580# CONFIG_NF_NAT_TFTP is not set
581# CONFIG_NF_NAT_AMANDA is not set
582# CONFIG_NF_NAT_PPTP is not set
583# CONFIG_NF_NAT_H323 is not set
584CONFIG_NF_NAT_SIP=y
585CONFIG_IP_NF_MANGLE=y
586
587#
588# IPv6: Netfilter Configuration
589#
590CONFIG_NF_CONNTRACK_IPV6=y
591CONFIG_IP6_NF_IPTABLES=y
592CONFIG_IP6_NF_MATCH_IPV6HEADER=y
593CONFIG_IP6_NF_FILTER=y
594CONFIG_IP6_NF_TARGET_LOG=y
595CONFIG_IP6_NF_TARGET_REJECT=y
596CONFIG_IP6_NF_MANGLE=y
405# CONFIG_IP_DCCP is not set 597# CONFIG_IP_DCCP is not set
406# CONFIG_IP_SCTP is not set 598# CONFIG_IP_SCTP is not set
407# CONFIG_TIPC is not set 599# CONFIG_TIPC is not set
@@ -409,6 +601,7 @@ CONFIG_IPV6_SIT=y
409# CONFIG_BRIDGE is not set 601# CONFIG_BRIDGE is not set
410# CONFIG_VLAN_8021Q is not set 602# CONFIG_VLAN_8021Q is not set
411# CONFIG_DECNET is not set 603# CONFIG_DECNET is not set
604CONFIG_LLC=y
412# CONFIG_LLC2 is not set 605# CONFIG_LLC2 is not set
413# CONFIG_IPX is not set 606# CONFIG_IPX is not set
414# CONFIG_ATALK is not set 607# CONFIG_ATALK is not set
@@ -416,28 +609,99 @@ CONFIG_IPV6_SIT=y
416# CONFIG_LAPB is not set 609# CONFIG_LAPB is not set
417# CONFIG_ECONET is not set 610# CONFIG_ECONET is not set
418# CONFIG_WAN_ROUTER is not set 611# CONFIG_WAN_ROUTER is not set
419 612CONFIG_NET_SCHED=y
420# 613
421# QoS and/or fair queueing 614#
422# 615# Queueing/Scheduling
423# CONFIG_NET_SCHED is not set 616#
617# CONFIG_NET_SCH_CBQ is not set
618# CONFIG_NET_SCH_HTB is not set
619# CONFIG_NET_SCH_HFSC is not set
620# CONFIG_NET_SCH_PRIO is not set
621# CONFIG_NET_SCH_RR is not set
622# CONFIG_NET_SCH_RED is not set
623# CONFIG_NET_SCH_SFQ is not set
624# CONFIG_NET_SCH_TEQL is not set
625# CONFIG_NET_SCH_TBF is not set
626# CONFIG_NET_SCH_GRED is not set
627# CONFIG_NET_SCH_DSMARK is not set
628# CONFIG_NET_SCH_NETEM is not set
629# CONFIG_NET_SCH_INGRESS is not set
630
631#
632# Classification
633#
634CONFIG_NET_CLS=y
635# CONFIG_NET_CLS_BASIC is not set
636# CONFIG_NET_CLS_TCINDEX is not set
637# CONFIG_NET_CLS_ROUTE4 is not set
638# CONFIG_NET_CLS_FW is not set
639# CONFIG_NET_CLS_U32 is not set
640# CONFIG_NET_CLS_RSVP is not set
641# CONFIG_NET_CLS_RSVP6 is not set
642# CONFIG_NET_CLS_FLOW is not set
643CONFIG_NET_EMATCH=y
644CONFIG_NET_EMATCH_STACK=32
645# CONFIG_NET_EMATCH_CMP is not set
646# CONFIG_NET_EMATCH_NBYTE is not set
647# CONFIG_NET_EMATCH_U32 is not set
648# CONFIG_NET_EMATCH_META is not set
649# CONFIG_NET_EMATCH_TEXT is not set
650CONFIG_NET_CLS_ACT=y
651# CONFIG_NET_ACT_POLICE is not set
652# CONFIG_NET_ACT_GACT is not set
653# CONFIG_NET_ACT_MIRRED is not set
654# CONFIG_NET_ACT_IPT is not set
655# CONFIG_NET_ACT_NAT is not set
656# CONFIG_NET_ACT_PEDIT is not set
657# CONFIG_NET_ACT_SIMP is not set
658CONFIG_NET_SCH_FIFO=y
424 659
425# 660#
426# Network testing 661# Network testing
427# 662#
428# CONFIG_NET_PKTGEN is not set 663# CONFIG_NET_PKTGEN is not set
429# CONFIG_NET_TCPPROBE is not set 664# CONFIG_NET_TCPPROBE is not set
430# CONFIG_HAMRADIO is not set 665CONFIG_HAMRADIO=y
666
667#
668# Packet Radio protocols
669#
670# CONFIG_AX25 is not set
671# CONFIG_CAN is not set
431# CONFIG_IRDA is not set 672# CONFIG_IRDA is not set
432# CONFIG_BT is not set 673# CONFIG_BT is not set
433# CONFIG_AF_RXRPC is not set 674# CONFIG_AF_RXRPC is not set
675CONFIG_FIB_RULES=y
434 676
435# 677#
436# Wireless 678# Wireless
437# 679#
438# CONFIG_CFG80211 is not set 680CONFIG_CFG80211=y
439# CONFIG_WIRELESS_EXT is not set 681CONFIG_NL80211=y
440# CONFIG_MAC80211 is not set 682CONFIG_WIRELESS_EXT=y
683CONFIG_MAC80211=y
684
685#
686# Rate control algorithm selection
687#
688CONFIG_MAC80211_RC_DEFAULT_PID=y
689# CONFIG_MAC80211_RC_DEFAULT_NONE is not set
690
691#
692# Selecting 'y' for an algorithm will
693#
694
695#
696# build the algorithm into mac80211.
697#
698CONFIG_MAC80211_RC_DEFAULT="pid"
699CONFIG_MAC80211_RC_PID=y
700# CONFIG_MAC80211_MESH is not set
701CONFIG_MAC80211_LEDS=y
702# CONFIG_MAC80211_DEBUGFS is not set
703# CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT is not set
704# CONFIG_MAC80211_DEBUG is not set
441# CONFIG_IEEE80211 is not set 705# CONFIG_IEEE80211 is not set
442# CONFIG_RFKILL is not set 706# CONFIG_RFKILL is not set
443# CONFIG_NET_9P is not set 707# CONFIG_NET_9P is not set
@@ -449,13 +713,15 @@ CONFIG_IPV6_SIT=y
449# 713#
450# Generic Driver Options 714# Generic Driver Options
451# 715#
716CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
452CONFIG_STANDALONE=y 717CONFIG_STANDALONE=y
453CONFIG_PREVENT_FIRMWARE_BUILD=y 718CONFIG_PREVENT_FIRMWARE_BUILD=y
454CONFIG_FW_LOADER=y 719CONFIG_FW_LOADER=y
455# CONFIG_DEBUG_DRIVER is not set 720# CONFIG_DEBUG_DRIVER is not set
456# CONFIG_DEBUG_DEVRES is not set 721CONFIG_DEBUG_DEVRES=y
457# CONFIG_SYS_HYPERVISOR is not set 722# CONFIG_SYS_HYPERVISOR is not set
458# CONFIG_CONNECTOR is not set 723CONFIG_CONNECTOR=y
724CONFIG_PROC_EVENTS=y
459# CONFIG_MTD is not set 725# CONFIG_MTD is not set
460# CONFIG_PARPORT is not set 726# CONFIG_PARPORT is not set
461CONFIG_PNP=y 727CONFIG_PNP=y
@@ -466,7 +732,7 @@ CONFIG_PNP=y
466# 732#
467CONFIG_PNPACPI=y 733CONFIG_PNPACPI=y
468CONFIG_BLK_DEV=y 734CONFIG_BLK_DEV=y
469CONFIG_BLK_DEV_FD=y 735# CONFIG_BLK_DEV_FD is not set
470# CONFIG_BLK_CPQ_DA is not set 736# CONFIG_BLK_CPQ_DA is not set
471# CONFIG_BLK_CPQ_CISS_DA is not set 737# CONFIG_BLK_CPQ_CISS_DA is not set
472# CONFIG_BLK_DEV_DAC960 is not set 738# CONFIG_BLK_DEV_DAC960 is not set
@@ -479,8 +745,8 @@ CONFIG_BLK_DEV_LOOP=y
479# CONFIG_BLK_DEV_UB is not set 745# CONFIG_BLK_DEV_UB is not set
480CONFIG_BLK_DEV_RAM=y 746CONFIG_BLK_DEV_RAM=y
481CONFIG_BLK_DEV_RAM_COUNT=16 747CONFIG_BLK_DEV_RAM_COUNT=16
482CONFIG_BLK_DEV_RAM_SIZE=4096 748CONFIG_BLK_DEV_RAM_SIZE=16384
483CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 749# CONFIG_BLK_DEV_XIP is not set
484# CONFIG_CDROM_PKTCDVD is not set 750# CONFIG_CDROM_PKTCDVD is not set
485# CONFIG_ATA_OVER_ETH is not set 751# CONFIG_ATA_OVER_ETH is not set
486CONFIG_MISC_DEVICES=y 752CONFIG_MISC_DEVICES=y
@@ -489,73 +755,17 @@ CONFIG_MISC_DEVICES=y
489# CONFIG_EEPROM_93CX6 is not set 755# CONFIG_EEPROM_93CX6 is not set
490# CONFIG_SGI_IOC4 is not set 756# CONFIG_SGI_IOC4 is not set
491# CONFIG_TIFM_CORE is not set 757# CONFIG_TIFM_CORE is not set
758# CONFIG_ACER_WMI is not set
759# CONFIG_ASUS_LAPTOP is not set
760# CONFIG_FUJITSU_LAPTOP is not set
761# CONFIG_TC1100_WMI is not set
762# CONFIG_MSI_LAPTOP is not set
492# CONFIG_SONY_LAPTOP is not set 763# CONFIG_SONY_LAPTOP is not set
493# CONFIG_THINKPAD_ACPI is not set 764# CONFIG_THINKPAD_ACPI is not set
494CONFIG_IDE=y 765# CONFIG_INTEL_MENLOW is not set
495CONFIG_BLK_DEV_IDE=y 766# CONFIG_ENCLOSURE_SERVICES is not set
496 767CONFIG_HAVE_IDE=y
497# 768# CONFIG_IDE is not set
498# Please see Documentation/ide.txt for help/info on IDE drives
499#
500# CONFIG_BLK_DEV_IDE_SATA is not set
501# CONFIG_BLK_DEV_HD_IDE is not set
502CONFIG_BLK_DEV_IDEDISK=y
503CONFIG_IDEDISK_MULTI_MODE=y
504CONFIG_BLK_DEV_IDECD=y
505# CONFIG_BLK_DEV_IDETAPE is not set
506# CONFIG_BLK_DEV_IDEFLOPPY is not set
507# CONFIG_BLK_DEV_IDESCSI is not set
508CONFIG_BLK_DEV_IDEACPI=y
509# CONFIG_IDE_TASK_IOCTL is not set
510CONFIG_IDE_PROC_FS=y
511
512#
513# IDE chipset support/bugfixes
514#
515CONFIG_IDE_GENERIC=y
516# CONFIG_BLK_DEV_CMD640 is not set
517# CONFIG_BLK_DEV_IDEPNP is not set
518CONFIG_BLK_DEV_IDEPCI=y
519# CONFIG_IDEPCI_SHARE_IRQ is not set
520CONFIG_IDEPCI_PCIBUS_ORDER=y
521# CONFIG_BLK_DEV_OFFBOARD is not set
522# CONFIG_BLK_DEV_GENERIC is not set
523# CONFIG_BLK_DEV_OPTI621 is not set
524# CONFIG_BLK_DEV_RZ1000 is not set
525CONFIG_BLK_DEV_IDEDMA_PCI=y
526# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
527# CONFIG_IDEDMA_ONLYDISK is not set
528# CONFIG_BLK_DEV_AEC62XX is not set
529# CONFIG_BLK_DEV_ALI15X3 is not set
530CONFIG_BLK_DEV_AMD74XX=y
531# CONFIG_BLK_DEV_ATIIXP is not set
532# CONFIG_BLK_DEV_CMD64X is not set
533# CONFIG_BLK_DEV_TRIFLEX is not set
534# CONFIG_BLK_DEV_CY82C693 is not set
535# CONFIG_BLK_DEV_CS5520 is not set
536# CONFIG_BLK_DEV_CS5530 is not set
537# CONFIG_BLK_DEV_CS5535 is not set
538# CONFIG_BLK_DEV_HPT34X is not set
539# CONFIG_BLK_DEV_HPT366 is not set
540# CONFIG_BLK_DEV_JMICRON is not set
541# CONFIG_BLK_DEV_SC1200 is not set
542CONFIG_BLK_DEV_PIIX=y
543# CONFIG_BLK_DEV_IT8213 is not set
544# CONFIG_BLK_DEV_IT821X is not set
545# CONFIG_BLK_DEV_NS87415 is not set
546# CONFIG_BLK_DEV_PDC202XX_OLD is not set
547# CONFIG_BLK_DEV_PDC202XX_NEW is not set
548# CONFIG_BLK_DEV_SVWKS is not set
549# CONFIG_BLK_DEV_SIIMAGE is not set
550# CONFIG_BLK_DEV_SIS5513 is not set
551# CONFIG_BLK_DEV_SLC90E66 is not set
552# CONFIG_BLK_DEV_TRM290 is not set
553# CONFIG_BLK_DEV_VIA82CXXX is not set
554# CONFIG_BLK_DEV_TC86C001 is not set
555# CONFIG_IDE_ARM is not set
556CONFIG_BLK_DEV_IDEDMA=y
557# CONFIG_IDEDMA_IVB is not set
558# CONFIG_BLK_DEV_HD is not set
559 769
560# 770#
561# SCSI device support 771# SCSI device support
@@ -564,8 +774,8 @@ CONFIG_BLK_DEV_IDEDMA=y
564CONFIG_SCSI=y 774CONFIG_SCSI=y
565CONFIG_SCSI_DMA=y 775CONFIG_SCSI_DMA=y
566# CONFIG_SCSI_TGT is not set 776# CONFIG_SCSI_TGT is not set
567CONFIG_SCSI_NETLINK=y 777# CONFIG_SCSI_NETLINK is not set
568# CONFIG_SCSI_PROC_FS is not set 778CONFIG_SCSI_PROC_FS=y
569 779
570# 780#
571# SCSI support type (disk, tape, CD-ROM) 781# SCSI support type (disk, tape, CD-ROM)
@@ -574,7 +784,7 @@ CONFIG_BLK_DEV_SD=y
574# CONFIG_CHR_DEV_ST is not set 784# CONFIG_CHR_DEV_ST is not set
575# CONFIG_CHR_DEV_OSST is not set 785# CONFIG_CHR_DEV_OSST is not set
576CONFIG_BLK_DEV_SR=y 786CONFIG_BLK_DEV_SR=y
577# CONFIG_BLK_DEV_SR_VENDOR is not set 787CONFIG_BLK_DEV_SR_VENDOR=y
578CONFIG_CHR_DEV_SG=y 788CONFIG_CHR_DEV_SG=y
579# CONFIG_CHR_DEV_SCH is not set 789# CONFIG_CHR_DEV_SCH is not set
580 790
@@ -582,7 +792,7 @@ CONFIG_CHR_DEV_SG=y
582# Some SCSI devices (e.g. CD jukebox) support multiple LUNs 792# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
583# 793#
584# CONFIG_SCSI_MULTI_LUN is not set 794# CONFIG_SCSI_MULTI_LUN is not set
585# CONFIG_SCSI_CONSTANTS is not set 795CONFIG_SCSI_CONSTANTS=y
586# CONFIG_SCSI_LOGGING is not set 796# CONFIG_SCSI_LOGGING is not set
587# CONFIG_SCSI_SCAN_ASYNC is not set 797# CONFIG_SCSI_SCAN_ASYNC is not set
588CONFIG_SCSI_WAIT_SCAN=m 798CONFIG_SCSI_WAIT_SCAN=m
@@ -591,81 +801,37 @@ CONFIG_SCSI_WAIT_SCAN=m
591# SCSI Transports 801# SCSI Transports
592# 802#
593CONFIG_SCSI_SPI_ATTRS=y 803CONFIG_SCSI_SPI_ATTRS=y
594CONFIG_SCSI_FC_ATTRS=y 804# CONFIG_SCSI_FC_ATTRS is not set
595# CONFIG_SCSI_ISCSI_ATTRS is not set 805# CONFIG_SCSI_ISCSI_ATTRS is not set
596# CONFIG_SCSI_SAS_ATTRS is not set 806# CONFIG_SCSI_SAS_ATTRS is not set
597# CONFIG_SCSI_SAS_LIBSAS is not set 807# CONFIG_SCSI_SAS_LIBSAS is not set
598 808# CONFIG_SCSI_SRP_ATTRS is not set
599# 809# CONFIG_SCSI_LOWLEVEL is not set
600# SCSI low-level drivers 810# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
601#
602# CONFIG_ISCSI_TCP is not set
603CONFIG_BLK_DEV_3W_XXXX_RAID=y
604# CONFIG_SCSI_3W_9XXX is not set
605# CONFIG_SCSI_ACARD is not set
606# CONFIG_SCSI_AACRAID is not set
607CONFIG_SCSI_AIC7XXX=y
608CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
609CONFIG_AIC7XXX_RESET_DELAY_MS=5000
610CONFIG_AIC7XXX_DEBUG_ENABLE=y
611CONFIG_AIC7XXX_DEBUG_MASK=0
612CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
613# CONFIG_SCSI_AIC7XXX_OLD is not set
614CONFIG_SCSI_AIC79XX=y
615CONFIG_AIC79XX_CMDS_PER_DEVICE=32
616CONFIG_AIC79XX_RESET_DELAY_MS=4000
617# CONFIG_AIC79XX_DEBUG_ENABLE is not set
618CONFIG_AIC79XX_DEBUG_MASK=0
619# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set
620# CONFIG_SCSI_AIC94XX is not set
621# CONFIG_SCSI_DPT_I2O is not set
622# CONFIG_SCSI_ADVANSYS is not set
623# CONFIG_SCSI_ARCMSR is not set
624# CONFIG_MEGARAID_NEWGEN is not set
625# CONFIG_MEGARAID_LEGACY is not set
626# CONFIG_MEGARAID_SAS is not set
627# CONFIG_SCSI_HPTIOP is not set
628# CONFIG_SCSI_BUSLOGIC is not set
629# CONFIG_SCSI_DMX3191D is not set
630# CONFIG_SCSI_EATA is not set
631# CONFIG_SCSI_FUTURE_DOMAIN is not set
632# CONFIG_SCSI_GDTH is not set
633# CONFIG_SCSI_IPS is not set
634# CONFIG_SCSI_INITIO is not set
635# CONFIG_SCSI_INIA100 is not set
636# CONFIG_SCSI_STEX is not set
637# CONFIG_SCSI_SYM53C8XX_2 is not set
638# CONFIG_SCSI_IPR is not set
639# CONFIG_SCSI_QLOGIC_1280 is not set
640# CONFIG_SCSI_QLA_FC is not set
641# CONFIG_SCSI_QLA_ISCSI is not set
642# CONFIG_SCSI_LPFC is not set
643# CONFIG_SCSI_DC395x is not set
644# CONFIG_SCSI_DC390T is not set
645# CONFIG_SCSI_NSP32 is not set
646# CONFIG_SCSI_DEBUG is not set
647# CONFIG_SCSI_SRP is not set
648CONFIG_ATA=y 811CONFIG_ATA=y
649# CONFIG_ATA_NONSTANDARD is not set 812# CONFIG_ATA_NONSTANDARD is not set
650CONFIG_ATA_ACPI=y 813CONFIG_ATA_ACPI=y
814CONFIG_SATA_PMP=y
651CONFIG_SATA_AHCI=y 815CONFIG_SATA_AHCI=y
652CONFIG_SATA_SVW=y 816# CONFIG_SATA_SIL24 is not set
817CONFIG_ATA_SFF=y
818# CONFIG_SATA_SVW is not set
653CONFIG_ATA_PIIX=y 819CONFIG_ATA_PIIX=y
654# CONFIG_SATA_MV is not set 820# CONFIG_SATA_MV is not set
655CONFIG_SATA_NV=y 821# CONFIG_SATA_NV is not set
656# CONFIG_PDC_ADMA is not set 822# CONFIG_PDC_ADMA is not set
657# CONFIG_SATA_QSTOR is not set 823# CONFIG_SATA_QSTOR is not set
658# CONFIG_SATA_PROMISE is not set 824# CONFIG_SATA_PROMISE is not set
659# CONFIG_SATA_SX4 is not set 825# CONFIG_SATA_SX4 is not set
660CONFIG_SATA_SIL=y 826# CONFIG_SATA_SIL is not set
661# CONFIG_SATA_SIL24 is not set
662# CONFIG_SATA_SIS is not set 827# CONFIG_SATA_SIS is not set
663# CONFIG_SATA_ULI is not set 828# CONFIG_SATA_ULI is not set
664CONFIG_SATA_VIA=y 829# CONFIG_SATA_VIA is not set
665# CONFIG_SATA_VITESSE is not set 830# CONFIG_SATA_VITESSE is not set
666# CONFIG_SATA_INIC162X is not set 831# CONFIG_SATA_INIC162X is not set
832# CONFIG_PATA_ACPI is not set
667# CONFIG_PATA_ALI is not set 833# CONFIG_PATA_ALI is not set
668# CONFIG_PATA_AMD is not set 834CONFIG_PATA_AMD=y
669# CONFIG_PATA_ARTOP is not set 835# CONFIG_PATA_ARTOP is not set
670# CONFIG_PATA_ATIIXP is not set 836# CONFIG_PATA_ATIIXP is not set
671# CONFIG_PATA_CMD640_PCI is not set 837# CONFIG_PATA_CMD640_PCI is not set
@@ -673,6 +839,7 @@ CONFIG_SATA_VIA=y
673# CONFIG_PATA_CS5520 is not set 839# CONFIG_PATA_CS5520 is not set
674# CONFIG_PATA_CS5530 is not set 840# CONFIG_PATA_CS5530 is not set
675# CONFIG_PATA_CS5535 is not set 841# CONFIG_PATA_CS5535 is not set
842# CONFIG_PATA_CS5536 is not set
676# CONFIG_PATA_CYPRESS is not set 843# CONFIG_PATA_CYPRESS is not set
677# CONFIG_PATA_EFAR is not set 844# CONFIG_PATA_EFAR is not set
678# CONFIG_ATA_GENERIC is not set 845# CONFIG_ATA_GENERIC is not set
@@ -686,11 +853,14 @@ CONFIG_SATA_VIA=y
686# CONFIG_PATA_TRIFLEX is not set 853# CONFIG_PATA_TRIFLEX is not set
687# CONFIG_PATA_MARVELL is not set 854# CONFIG_PATA_MARVELL is not set
688# CONFIG_PATA_MPIIX is not set 855# CONFIG_PATA_MPIIX is not set
689# CONFIG_PATA_OLDPIIX is not set 856CONFIG_PATA_OLDPIIX=y
690# CONFIG_PATA_NETCELL is not set 857# CONFIG_PATA_NETCELL is not set
858# CONFIG_PATA_NINJA32 is not set
691# CONFIG_PATA_NS87410 is not set 859# CONFIG_PATA_NS87410 is not set
860# CONFIG_PATA_NS87415 is not set
692# CONFIG_PATA_OPTI is not set 861# CONFIG_PATA_OPTI is not set
693# CONFIG_PATA_OPTIDMA is not set 862# CONFIG_PATA_OPTIDMA is not set
863# CONFIG_PATA_PCMCIA is not set
694# CONFIG_PATA_PDC_OLD is not set 864# CONFIG_PATA_PDC_OLD is not set
695# CONFIG_PATA_RADISYS is not set 865# CONFIG_PATA_RADISYS is not set
696# CONFIG_PATA_RZ1000 is not set 866# CONFIG_PATA_RZ1000 is not set
@@ -702,65 +872,42 @@ CONFIG_SATA_VIA=y
702# CONFIG_PATA_VIA is not set 872# CONFIG_PATA_VIA is not set
703# CONFIG_PATA_WINBOND is not set 873# CONFIG_PATA_WINBOND is not set
704CONFIG_MD=y 874CONFIG_MD=y
705# CONFIG_BLK_DEV_MD is not set 875CONFIG_BLK_DEV_MD=y
876# CONFIG_MD_LINEAR is not set
877# CONFIG_MD_RAID0 is not set
878# CONFIG_MD_RAID1 is not set
879# CONFIG_MD_RAID10 is not set
880# CONFIG_MD_RAID456 is not set
881# CONFIG_MD_MULTIPATH is not set
882# CONFIG_MD_FAULTY is not set
706CONFIG_BLK_DEV_DM=y 883CONFIG_BLK_DEV_DM=y
707# CONFIG_DM_DEBUG is not set 884# CONFIG_DM_DEBUG is not set
708# CONFIG_DM_CRYPT is not set 885# CONFIG_DM_CRYPT is not set
709# CONFIG_DM_SNAPSHOT is not set 886# CONFIG_DM_SNAPSHOT is not set
710# CONFIG_DM_MIRROR is not set 887CONFIG_DM_MIRROR=y
711# CONFIG_DM_ZERO is not set 888CONFIG_DM_ZERO=y
712# CONFIG_DM_MULTIPATH is not set 889# CONFIG_DM_MULTIPATH is not set
713# CONFIG_DM_DELAY is not set 890# CONFIG_DM_DELAY is not set
714 891# CONFIG_DM_UEVENT is not set
715# 892# CONFIG_FUSION is not set
716# Fusion MPT device support
717#
718CONFIG_FUSION=y
719CONFIG_FUSION_SPI=y
720# CONFIG_FUSION_FC is not set
721# CONFIG_FUSION_SAS is not set
722CONFIG_FUSION_MAX_SGE=128
723# CONFIG_FUSION_CTL is not set
724 893
725# 894#
726# IEEE 1394 (FireWire) support 895# IEEE 1394 (FireWire) support
727# 896#
728# CONFIG_FIREWIRE is not set 897# CONFIG_FIREWIRE is not set
729CONFIG_IEEE1394=y 898# CONFIG_IEEE1394 is not set
730
731#
732# Subsystem Options
733#
734# CONFIG_IEEE1394_VERBOSEDEBUG is not set
735
736#
737# Controllers
738#
739
740#
741# Texas Instruments PCILynx requires I2C
742#
743CONFIG_IEEE1394_OHCI1394=y
744
745#
746# Protocols
747#
748# CONFIG_IEEE1394_VIDEO1394 is not set
749# CONFIG_IEEE1394_SBP2 is not set
750# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set
751# CONFIG_IEEE1394_ETH1394 is not set
752# CONFIG_IEEE1394_DV1394 is not set
753CONFIG_IEEE1394_RAWIO=y
754# CONFIG_I2O is not set 899# CONFIG_I2O is not set
755CONFIG_MACINTOSH_DRIVERS=y 900CONFIG_MACINTOSH_DRIVERS=y
756# CONFIG_MAC_EMUMOUSEBTN is not set 901CONFIG_MAC_EMUMOUSEBTN=y
757CONFIG_NETDEVICES=y 902CONFIG_NETDEVICES=y
758CONFIG_NETDEVICES_MULTIQUEUE=y 903# CONFIG_NETDEVICES_MULTIQUEUE is not set
904# CONFIG_IFB is not set
759# CONFIG_DUMMY is not set 905# CONFIG_DUMMY is not set
760# CONFIG_BONDING is not set 906# CONFIG_BONDING is not set
761# CONFIG_MACVLAN is not set 907# CONFIG_MACVLAN is not set
762# CONFIG_EQUALIZER is not set 908# CONFIG_EQUALIZER is not set
763# CONFIG_TUN is not set 909# CONFIG_TUN is not set
910# CONFIG_VETH is not set
764# CONFIG_NET_SB1000 is not set 911# CONFIG_NET_SB1000 is not set
765# CONFIG_ARCNET is not set 912# CONFIG_ARCNET is not set
766# CONFIG_PHYLIB is not set 913# CONFIG_PHYLIB is not set
@@ -770,38 +917,40 @@ CONFIG_MII=y
770# CONFIG_SUNGEM is not set 917# CONFIG_SUNGEM is not set
771# CONFIG_CASSINI is not set 918# CONFIG_CASSINI is not set
772CONFIG_NET_VENDOR_3COM=y 919CONFIG_NET_VENDOR_3COM=y
773CONFIG_VORTEX=y 920# CONFIG_VORTEX is not set
774# CONFIG_TYPHOON is not set 921# CONFIG_TYPHOON is not set
775CONFIG_NET_TULIP=y 922CONFIG_NET_TULIP=y
776# CONFIG_DE2104X is not set 923# CONFIG_DE2104X is not set
777CONFIG_TULIP=y 924# CONFIG_TULIP is not set
778# CONFIG_TULIP_MWI is not set
779# CONFIG_TULIP_MMIO is not set
780# CONFIG_TULIP_NAPI is not set
781# CONFIG_DE4X5 is not set 925# CONFIG_DE4X5 is not set
782# CONFIG_WINBOND_840 is not set 926# CONFIG_WINBOND_840 is not set
783# CONFIG_DM9102 is not set 927# CONFIG_DM9102 is not set
784# CONFIG_ULI526X is not set 928# CONFIG_ULI526X is not set
929# CONFIG_PCMCIA_XIRCOM is not set
785# CONFIG_HP100 is not set 930# CONFIG_HP100 is not set
931# CONFIG_IBM_NEW_EMAC_ZMII is not set
932# CONFIG_IBM_NEW_EMAC_RGMII is not set
933# CONFIG_IBM_NEW_EMAC_TAH is not set
934# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
786CONFIG_NET_PCI=y 935CONFIG_NET_PCI=y
787# CONFIG_PCNET32 is not set 936# CONFIG_PCNET32 is not set
788# CONFIG_AMD8111_ETH is not set 937# CONFIG_AMD8111_ETH is not set
789# CONFIG_ADAPTEC_STARFIRE is not set 938# CONFIG_ADAPTEC_STARFIRE is not set
790CONFIG_B44=y 939# CONFIG_B44 is not set
791CONFIG_FORCEDETH=y 940CONFIG_FORCEDETH=y
792# CONFIG_FORCEDETH_NAPI is not set 941# CONFIG_FORCEDETH_NAPI is not set
793# CONFIG_DGRS is not set
794# CONFIG_EEPRO100 is not set 942# CONFIG_EEPRO100 is not set
795CONFIG_E100=y 943CONFIG_E100=y
796# CONFIG_FEALNX is not set 944# CONFIG_FEALNX is not set
797# CONFIG_NATSEMI is not set 945# CONFIG_NATSEMI is not set
798# CONFIG_NE2K_PCI is not set 946# CONFIG_NE2K_PCI is not set
799CONFIG_8139CP=y 947# CONFIG_8139CP is not set
800CONFIG_8139TOO=y 948CONFIG_8139TOO=y
801# CONFIG_8139TOO_PIO is not set 949CONFIG_8139TOO_PIO=y
802# CONFIG_8139TOO_TUNE_TWISTER is not set 950# CONFIG_8139TOO_TUNE_TWISTER is not set
803# CONFIG_8139TOO_8129 is not set 951# CONFIG_8139TOO_8129 is not set
804# CONFIG_8139_OLD_RX_RESET is not set 952# CONFIG_8139_OLD_RX_RESET is not set
953# CONFIG_R6040 is not set
805# CONFIG_SIS900 is not set 954# CONFIG_SIS900 is not set
806# CONFIG_EPIC100 is not set 955# CONFIG_EPIC100 is not set
807# CONFIG_SUNDANCE is not set 956# CONFIG_SUNDANCE is not set
@@ -814,34 +963,75 @@ CONFIG_NETDEV_1000=y
814CONFIG_E1000=y 963CONFIG_E1000=y
815# CONFIG_E1000_NAPI is not set 964# CONFIG_E1000_NAPI is not set
816# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set 965# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
966# CONFIG_E1000E is not set
967# CONFIG_E1000E_ENABLED is not set
968# CONFIG_IP1000 is not set
969# CONFIG_IGB is not set
817# CONFIG_NS83820 is not set 970# CONFIG_NS83820 is not set
818# CONFIG_HAMACHI is not set 971# CONFIG_HAMACHI is not set
819# CONFIG_YELLOWFIN is not set 972# CONFIG_YELLOWFIN is not set
820CONFIG_R8169=y 973# CONFIG_R8169 is not set
821# CONFIG_R8169_NAPI is not set
822# CONFIG_SIS190 is not set 974# CONFIG_SIS190 is not set
823# CONFIG_SKGE is not set 975# CONFIG_SKGE is not set
824CONFIG_SKY2=y 976CONFIG_SKY2=y
977# CONFIG_SKY2_DEBUG is not set
825# CONFIG_VIA_VELOCITY is not set 978# CONFIG_VIA_VELOCITY is not set
826CONFIG_TIGON3=y 979CONFIG_TIGON3=y
827CONFIG_BNX2=y 980# CONFIG_BNX2 is not set
828# CONFIG_QLA3XXX is not set 981# CONFIG_QLA3XXX is not set
829# CONFIG_ATL1 is not set 982# CONFIG_ATL1 is not set
830CONFIG_NETDEV_10000=y 983CONFIG_NETDEV_10000=y
831# CONFIG_CHELSIO_T1 is not set 984# CONFIG_CHELSIO_T1 is not set
832# CONFIG_CHELSIO_T3 is not set 985# CONFIG_CHELSIO_T3 is not set
986# CONFIG_IXGBE is not set
833# CONFIG_IXGB is not set 987# CONFIG_IXGB is not set
834# CONFIG_S2IO is not set 988# CONFIG_S2IO is not set
835# CONFIG_MYRI10GE is not set 989# CONFIG_MYRI10GE is not set
836# CONFIG_NETXEN_NIC is not set 990# CONFIG_NETXEN_NIC is not set
991# CONFIG_NIU is not set
837# CONFIG_MLX4_CORE is not set 992# CONFIG_MLX4_CORE is not set
838# CONFIG_TR is not set 993# CONFIG_TEHUTI is not set
994# CONFIG_BNX2X is not set
995# CONFIG_SFC is not set
996CONFIG_TR=y
997# CONFIG_IBMOL is not set
998# CONFIG_IBMLS is not set
999# CONFIG_3C359 is not set
1000# CONFIG_TMS380TR is not set
839 1001
840# 1002#
841# Wireless LAN 1003# Wireless LAN
842# 1004#
843# CONFIG_WLAN_PRE80211 is not set 1005# CONFIG_WLAN_PRE80211 is not set
844# CONFIG_WLAN_80211 is not set 1006CONFIG_WLAN_80211=y
1007# CONFIG_PCMCIA_RAYCS is not set
1008# CONFIG_IPW2100 is not set
1009# CONFIG_IPW2200 is not set
1010# CONFIG_LIBERTAS is not set
1011# CONFIG_AIRO is not set
1012# CONFIG_HERMES is not set
1013# CONFIG_ATMEL is not set
1014# CONFIG_AIRO_CS is not set
1015# CONFIG_PCMCIA_WL3501 is not set
1016# CONFIG_PRISM54 is not set
1017# CONFIG_USB_ZD1201 is not set
1018# CONFIG_USB_NET_RNDIS_WLAN is not set
1019# CONFIG_RTL8180 is not set
1020# CONFIG_RTL8187 is not set
1021# CONFIG_ADM8211 is not set
1022# CONFIG_P54_COMMON is not set
1023CONFIG_ATH5K=y
1024# CONFIG_ATH5K_DEBUG is not set
1025# CONFIG_IWLWIFI is not set
1026# CONFIG_IWLCORE is not set
1027# CONFIG_IWLWIFI_LEDS is not set
1028# CONFIG_IWL4965 is not set
1029# CONFIG_IWL3945 is not set
1030# CONFIG_HOSTAP is not set
1031# CONFIG_B43 is not set
1032# CONFIG_B43LEGACY is not set
1033# CONFIG_ZD1211RW is not set
1034# CONFIG_RT2X00 is not set
845 1035
846# 1036#
847# USB Network Adapters 1037# USB Network Adapters
@@ -850,16 +1040,27 @@ CONFIG_NETDEV_10000=y
850# CONFIG_USB_KAWETH is not set 1040# CONFIG_USB_KAWETH is not set
851# CONFIG_USB_PEGASUS is not set 1041# CONFIG_USB_PEGASUS is not set
852# CONFIG_USB_RTL8150 is not set 1042# CONFIG_USB_RTL8150 is not set
853# CONFIG_USB_USBNET_MII is not set
854# CONFIG_USB_USBNET is not set 1043# CONFIG_USB_USBNET is not set
1044CONFIG_NET_PCMCIA=y
1045# CONFIG_PCMCIA_3C589 is not set
1046# CONFIG_PCMCIA_3C574 is not set
1047# CONFIG_PCMCIA_FMVJ18X is not set
1048# CONFIG_PCMCIA_PCNET is not set
1049# CONFIG_PCMCIA_NMCLAN is not set
1050# CONFIG_PCMCIA_SMC91C92 is not set
1051# CONFIG_PCMCIA_XIRC2PS is not set
1052# CONFIG_PCMCIA_AXNET is not set
1053# CONFIG_PCMCIA_IBMTR is not set
855# CONFIG_WAN is not set 1054# CONFIG_WAN is not set
856# CONFIG_FDDI is not set 1055CONFIG_FDDI=y
1056# CONFIG_DEFXX is not set
1057# CONFIG_SKFP is not set
857# CONFIG_HIPPI is not set 1058# CONFIG_HIPPI is not set
858# CONFIG_PPP is not set 1059# CONFIG_PPP is not set
859# CONFIG_SLIP is not set 1060# CONFIG_SLIP is not set
860# CONFIG_NET_FC is not set 1061# CONFIG_NET_FC is not set
861# CONFIG_SHAPER is not set
862CONFIG_NETCONSOLE=y 1062CONFIG_NETCONSOLE=y
1063# CONFIG_NETCONSOLE_DYNAMIC is not set
863CONFIG_NETPOLL=y 1064CONFIG_NETPOLL=y
864# CONFIG_NETPOLL_TRAP is not set 1065# CONFIG_NETPOLL_TRAP is not set
865CONFIG_NET_POLL_CONTROLLER=y 1066CONFIG_NET_POLL_CONTROLLER=y
@@ -870,18 +1071,17 @@ CONFIG_NET_POLL_CONTROLLER=y
870# Input device support 1071# Input device support
871# 1072#
872CONFIG_INPUT=y 1073CONFIG_INPUT=y
873# CONFIG_INPUT_FF_MEMLESS is not set 1074CONFIG_INPUT_FF_MEMLESS=y
874# CONFIG_INPUT_POLLDEV is not set 1075CONFIG_INPUT_POLLDEV=y
875 1076
876# 1077#
877# Userland interfaces 1078# Userland interfaces
878# 1079#
879CONFIG_INPUT_MOUSEDEV=y 1080CONFIG_INPUT_MOUSEDEV=y
880CONFIG_INPUT_MOUSEDEV_PSAUX=y 1081# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
881CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 1082CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
882CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 1083CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
883# CONFIG_INPUT_JOYDEV is not set 1084# CONFIG_INPUT_JOYDEV is not set
884# CONFIG_INPUT_TSDEV is not set
885CONFIG_INPUT_EVDEV=y 1085CONFIG_INPUT_EVDEV=y
886# CONFIG_INPUT_EVBUG is not set 1086# CONFIG_INPUT_EVBUG is not set
887 1087
@@ -906,17 +1106,63 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
906# CONFIG_MOUSE_SERIAL is not set 1106# CONFIG_MOUSE_SERIAL is not set
907# CONFIG_MOUSE_APPLETOUCH is not set 1107# CONFIG_MOUSE_APPLETOUCH is not set
908# CONFIG_MOUSE_VSXXXAA is not set 1108# CONFIG_MOUSE_VSXXXAA is not set
909# CONFIG_INPUT_JOYSTICK is not set 1109CONFIG_INPUT_JOYSTICK=y
910# CONFIG_INPUT_TABLET is not set 1110# CONFIG_JOYSTICK_ANALOG is not set
911# CONFIG_INPUT_TOUCHSCREEN is not set 1111# CONFIG_JOYSTICK_A3D is not set
912# CONFIG_INPUT_MISC is not set 1112# CONFIG_JOYSTICK_ADI is not set
1113# CONFIG_JOYSTICK_COBRA is not set
1114# CONFIG_JOYSTICK_GF2K is not set
1115# CONFIG_JOYSTICK_GRIP is not set
1116# CONFIG_JOYSTICK_GRIP_MP is not set
1117# CONFIG_JOYSTICK_GUILLEMOT is not set
1118# CONFIG_JOYSTICK_INTERACT is not set
1119# CONFIG_JOYSTICK_SIDEWINDER is not set
1120# CONFIG_JOYSTICK_TMDC is not set
1121# CONFIG_JOYSTICK_IFORCE is not set
1122# CONFIG_JOYSTICK_WARRIOR is not set
1123# CONFIG_JOYSTICK_MAGELLAN is not set
1124# CONFIG_JOYSTICK_SPACEORB is not set
1125# CONFIG_JOYSTICK_SPACEBALL is not set
1126# CONFIG_JOYSTICK_STINGER is not set
1127# CONFIG_JOYSTICK_TWIDJOY is not set
1128# CONFIG_JOYSTICK_ZHENHUA is not set
1129# CONFIG_JOYSTICK_JOYDUMP is not set
1130# CONFIG_JOYSTICK_XPAD is not set
1131CONFIG_INPUT_TABLET=y
1132# CONFIG_TABLET_USB_ACECAD is not set
1133# CONFIG_TABLET_USB_AIPTEK is not set
1134# CONFIG_TABLET_USB_GTCO is not set
1135# CONFIG_TABLET_USB_KBTAB is not set
1136# CONFIG_TABLET_USB_WACOM is not set
1137CONFIG_INPUT_TOUCHSCREEN=y
1138# CONFIG_TOUCHSCREEN_FUJITSU is not set
1139# CONFIG_TOUCHSCREEN_GUNZE is not set
1140# CONFIG_TOUCHSCREEN_ELO is not set
1141# CONFIG_TOUCHSCREEN_MTOUCH is not set
1142# CONFIG_TOUCHSCREEN_MK712 is not set
1143# CONFIG_TOUCHSCREEN_PENMOUNT is not set
1144# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
1145# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
1146# CONFIG_TOUCHSCREEN_UCB1400 is not set
1147# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
1148CONFIG_INPUT_MISC=y
1149# CONFIG_INPUT_PCSPKR is not set
1150# CONFIG_INPUT_APANEL is not set
1151# CONFIG_INPUT_WISTRON_BTNS is not set
1152# CONFIG_INPUT_ATLAS_BTNS is not set
1153# CONFIG_INPUT_ATI_REMOTE is not set
1154# CONFIG_INPUT_ATI_REMOTE2 is not set
1155# CONFIG_INPUT_KEYSPAN_REMOTE is not set
1156# CONFIG_INPUT_POWERMATE is not set
1157# CONFIG_INPUT_YEALINK is not set
1158# CONFIG_INPUT_UINPUT is not set
913 1159
914# 1160#
915# Hardware I/O ports 1161# Hardware I/O ports
916# 1162#
917CONFIG_SERIO=y 1163CONFIG_SERIO=y
918CONFIG_SERIO_I8042=y 1164CONFIG_SERIO_I8042=y
919# CONFIG_SERIO_SERPORT is not set 1165CONFIG_SERIO_SERPORT=y
920# CONFIG_SERIO_CT82C710 is not set 1166# CONFIG_SERIO_CT82C710 is not set
921# CONFIG_SERIO_PCIPS2 is not set 1167# CONFIG_SERIO_PCIPS2 is not set
922CONFIG_SERIO_LIBPS2=y 1168CONFIG_SERIO_LIBPS2=y
@@ -929,8 +1175,26 @@ CONFIG_SERIO_LIBPS2=y
929CONFIG_VT=y 1175CONFIG_VT=y
930CONFIG_VT_CONSOLE=y 1176CONFIG_VT_CONSOLE=y
931CONFIG_HW_CONSOLE=y 1177CONFIG_HW_CONSOLE=y
932# CONFIG_VT_HW_CONSOLE_BINDING is not set 1178CONFIG_VT_HW_CONSOLE_BINDING=y
933# CONFIG_SERIAL_NONSTANDARD is not set 1179CONFIG_DEVKMEM=y
1180CONFIG_SERIAL_NONSTANDARD=y
1181# CONFIG_COMPUTONE is not set
1182# CONFIG_ROCKETPORT is not set
1183# CONFIG_CYCLADES is not set
1184# CONFIG_DIGIEPCA is not set
1185# CONFIG_MOXA_INTELLIO is not set
1186# CONFIG_MOXA_SMARTIO is not set
1187# CONFIG_ISI is not set
1188# CONFIG_SYNCLINK is not set
1189# CONFIG_SYNCLINKMP is not set
1190# CONFIG_SYNCLINK_GT is not set
1191# CONFIG_N_HDLC is not set
1192# CONFIG_RISCOM8 is not set
1193# CONFIG_SPECIALIX is not set
1194# CONFIG_SX is not set
1195# CONFIG_RIO is not set
1196# CONFIG_STALDRV is not set
1197# CONFIG_NOZOMI is not set
934 1198
935# 1199#
936# Serial drivers 1200# Serial drivers
@@ -940,9 +1204,14 @@ CONFIG_SERIAL_8250_CONSOLE=y
940CONFIG_FIX_EARLYCON_MEM=y 1204CONFIG_FIX_EARLYCON_MEM=y
941CONFIG_SERIAL_8250_PCI=y 1205CONFIG_SERIAL_8250_PCI=y
942CONFIG_SERIAL_8250_PNP=y 1206CONFIG_SERIAL_8250_PNP=y
943CONFIG_SERIAL_8250_NR_UARTS=4 1207# CONFIG_SERIAL_8250_CS is not set
1208CONFIG_SERIAL_8250_NR_UARTS=32
944CONFIG_SERIAL_8250_RUNTIME_UARTS=4 1209CONFIG_SERIAL_8250_RUNTIME_UARTS=4
945# CONFIG_SERIAL_8250_EXTENDED is not set 1210CONFIG_SERIAL_8250_EXTENDED=y
1211CONFIG_SERIAL_8250_MANY_PORTS=y
1212CONFIG_SERIAL_8250_SHARE_IRQ=y
1213CONFIG_SERIAL_8250_DETECT_IRQ=y
1214CONFIG_SERIAL_8250_RSA=y
946 1215
947# 1216#
948# Non-8250 serial port support 1217# Non-8250 serial port support
@@ -951,89 +1220,275 @@ CONFIG_SERIAL_CORE=y
951CONFIG_SERIAL_CORE_CONSOLE=y 1220CONFIG_SERIAL_CORE_CONSOLE=y
952# CONFIG_SERIAL_JSM is not set 1221# CONFIG_SERIAL_JSM is not set
953CONFIG_UNIX98_PTYS=y 1222CONFIG_UNIX98_PTYS=y
954CONFIG_LEGACY_PTYS=y 1223# CONFIG_LEGACY_PTYS is not set
955CONFIG_LEGACY_PTY_COUNT=256
956# CONFIG_IPMI_HANDLER is not set 1224# CONFIG_IPMI_HANDLER is not set
957# CONFIG_WATCHDOG is not set
958CONFIG_HW_RANDOM=y 1225CONFIG_HW_RANDOM=y
959CONFIG_HW_RANDOM_INTEL=y 1226# CONFIG_HW_RANDOM_INTEL is not set
960CONFIG_HW_RANDOM_AMD=y 1227# CONFIG_HW_RANDOM_AMD is not set
961CONFIG_HW_RANDOM_GEODE=y 1228CONFIG_HW_RANDOM_GEODE=y
962CONFIG_HW_RANDOM_VIA=y 1229CONFIG_HW_RANDOM_VIA=y
963# CONFIG_NVRAM is not set 1230CONFIG_NVRAM=y
964CONFIG_RTC=y
965# CONFIG_R3964 is not set 1231# CONFIG_R3964 is not set
966# CONFIG_APPLICOM is not set 1232# CONFIG_APPLICOM is not set
967# CONFIG_SONYPI is not set 1233# CONFIG_SONYPI is not set
968CONFIG_AGP=y 1234
969# CONFIG_AGP_ALI is not set 1235#
970# CONFIG_AGP_ATI is not set 1236# PCMCIA character devices
971# CONFIG_AGP_AMD is not set 1237#
972CONFIG_AGP_AMD64=y 1238# CONFIG_SYNCLINK_CS is not set
973CONFIG_AGP_INTEL=y 1239# CONFIG_CARDMAN_4000 is not set
974# CONFIG_AGP_NVIDIA is not set 1240# CONFIG_CARDMAN_4040 is not set
975# CONFIG_AGP_SIS is not set 1241# CONFIG_IPWIRELESS is not set
976# CONFIG_AGP_SWORKS is not set
977# CONFIG_AGP_VIA is not set
978# CONFIG_AGP_EFFICEON is not set
979# CONFIG_DRM is not set
980# CONFIG_MWAVE is not set 1242# CONFIG_MWAVE is not set
981# CONFIG_PC8736x_GPIO is not set 1243# CONFIG_PC8736x_GPIO is not set
982# CONFIG_NSC_GPIO is not set 1244# CONFIG_NSC_GPIO is not set
983# CONFIG_CS5535_GPIO is not set 1245# CONFIG_CS5535_GPIO is not set
984CONFIG_RAW_DRIVER=y 1246# CONFIG_RAW_DRIVER is not set
985CONFIG_MAX_RAW_DEVS=256
986CONFIG_HPET=y 1247CONFIG_HPET=y
987# CONFIG_HPET_RTC_IRQ is not set 1248# CONFIG_HPET_RTC_IRQ is not set
988CONFIG_HPET_MMAP=y 1249# CONFIG_HPET_MMAP is not set
989# CONFIG_HANGCHECK_TIMER is not set 1250# CONFIG_HANGCHECK_TIMER is not set
990# CONFIG_TCG_TPM is not set 1251# CONFIG_TCG_TPM is not set
991# CONFIG_TELCLOCK is not set 1252# CONFIG_TELCLOCK is not set
992CONFIG_DEVPORT=y 1253CONFIG_DEVPORT=y
993# CONFIG_I2C is not set 1254CONFIG_I2C=y
994 1255CONFIG_I2C_BOARDINFO=y
995# 1256# CONFIG_I2C_CHARDEV is not set
996# SPI support 1257
997# 1258#
1259# I2C Hardware Bus support
1260#
1261# CONFIG_I2C_ALI1535 is not set
1262# CONFIG_I2C_ALI1563 is not set
1263# CONFIG_I2C_ALI15X3 is not set
1264# CONFIG_I2C_AMD756 is not set
1265# CONFIG_I2C_AMD8111 is not set
1266CONFIG_I2C_I801=y
1267# CONFIG_I2C_I810 is not set
1268# CONFIG_I2C_PIIX4 is not set
1269# CONFIG_I2C_NFORCE2 is not set
1270# CONFIG_I2C_OCORES is not set
1271# CONFIG_I2C_PARPORT_LIGHT is not set
1272# CONFIG_I2C_PROSAVAGE is not set
1273# CONFIG_I2C_SAVAGE4 is not set
1274# CONFIG_I2C_SIMTEC is not set
1275# CONFIG_SCx200_ACB is not set
1276# CONFIG_I2C_SIS5595 is not set
1277# CONFIG_I2C_SIS630 is not set
1278# CONFIG_I2C_SIS96X is not set
1279# CONFIG_I2C_TAOS_EVM is not set
1280# CONFIG_I2C_STUB is not set
1281# CONFIG_I2C_TINY_USB is not set
1282# CONFIG_I2C_VIA is not set
1283# CONFIG_I2C_VIAPRO is not set
1284# CONFIG_I2C_VOODOO3 is not set
1285# CONFIG_I2C_PCA_PLATFORM is not set
1286
1287#
1288# Miscellaneous I2C Chip support
1289#
1290# CONFIG_DS1682 is not set
1291# CONFIG_SENSORS_EEPROM is not set
1292# CONFIG_SENSORS_PCF8574 is not set
1293# CONFIG_PCF8575 is not set
1294# CONFIG_SENSORS_PCF8591 is not set
1295# CONFIG_SENSORS_MAX6875 is not set
1296# CONFIG_SENSORS_TSL2550 is not set
1297# CONFIG_I2C_DEBUG_CORE is not set
1298# CONFIG_I2C_DEBUG_ALGO is not set
1299# CONFIG_I2C_DEBUG_BUS is not set
1300# CONFIG_I2C_DEBUG_CHIP is not set
998# CONFIG_SPI is not set 1301# CONFIG_SPI is not set
999# CONFIG_SPI_MASTER is not set
1000# CONFIG_W1 is not set 1302# CONFIG_W1 is not set
1001# CONFIG_POWER_SUPPLY is not set 1303CONFIG_POWER_SUPPLY=y
1304# CONFIG_POWER_SUPPLY_DEBUG is not set
1305# CONFIG_PDA_POWER is not set
1306# CONFIG_BATTERY_DS2760 is not set
1002# CONFIG_HWMON is not set 1307# CONFIG_HWMON is not set
1308CONFIG_THERMAL=y
1309CONFIG_WATCHDOG=y
1310# CONFIG_WATCHDOG_NOWAYOUT is not set
1311
1312#
1313# Watchdog Device Drivers
1314#
1315# CONFIG_SOFT_WATCHDOG is not set
1316# CONFIG_ACQUIRE_WDT is not set
1317# CONFIG_ADVANTECH_WDT is not set
1318# CONFIG_ALIM1535_WDT is not set
1319# CONFIG_ALIM7101_WDT is not set
1320# CONFIG_SC520_WDT is not set
1321# CONFIG_EUROTECH_WDT is not set
1322# CONFIG_IB700_WDT is not set
1323# CONFIG_IBMASR is not set
1324# CONFIG_WAFER_WDT is not set
1325# CONFIG_I6300ESB_WDT is not set
1326# CONFIG_ITCO_WDT is not set
1327# CONFIG_IT8712F_WDT is not set
1328# CONFIG_HP_WATCHDOG is not set
1329# CONFIG_SC1200_WDT is not set
1330# CONFIG_PC87413_WDT is not set
1331# CONFIG_60XX_WDT is not set
1332# CONFIG_SBC8360_WDT is not set
1333# CONFIG_SBC7240_WDT is not set
1334# CONFIG_CPU5_WDT is not set
1335# CONFIG_SMSC37B787_WDT is not set
1336# CONFIG_W83627HF_WDT is not set
1337# CONFIG_W83697HF_WDT is not set
1338# CONFIG_W83877F_WDT is not set
1339# CONFIG_W83977F_WDT is not set
1340# CONFIG_MACHZ_WDT is not set
1341# CONFIG_SBC_EPX_C3_WATCHDOG is not set
1342
1343#
1344# PCI-based Watchdog Cards
1345#
1346# CONFIG_PCIPCWATCHDOG is not set
1347# CONFIG_WDTPCI is not set
1348
1349#
1350# USB-based Watchdog Cards
1351#
1352# CONFIG_USBPCWATCHDOG is not set
1353
1354#
1355# Sonics Silicon Backplane
1356#
1357CONFIG_SSB_POSSIBLE=y
1358# CONFIG_SSB is not set
1003 1359
1004# 1360#
1005# Multifunction device drivers 1361# Multifunction device drivers
1006# 1362#
1007# CONFIG_MFD_SM501 is not set 1363# CONFIG_MFD_SM501 is not set
1364# CONFIG_HTC_PASIC3 is not set
1008 1365
1009# 1366#
1010# Multimedia devices 1367# Multimedia devices
1011# 1368#
1369
1370#
1371# Multimedia core support
1372#
1012# CONFIG_VIDEO_DEV is not set 1373# CONFIG_VIDEO_DEV is not set
1013# CONFIG_DVB_CORE is not set 1374# CONFIG_DVB_CORE is not set
1375
1376#
1377# Multimedia drivers
1378#
1014CONFIG_DAB=y 1379CONFIG_DAB=y
1015# CONFIG_USB_DABUSB is not set 1380# CONFIG_USB_DABUSB is not set
1016 1381
1017# 1382#
1018# Graphics support 1383# Graphics support
1019# 1384#
1020# CONFIG_BACKLIGHT_LCD_SUPPORT is not set 1385CONFIG_AGP=y
1386# CONFIG_AGP_ALI is not set
1387# CONFIG_AGP_ATI is not set
1388# CONFIG_AGP_AMD is not set
1389CONFIG_AGP_AMD64=y
1390CONFIG_AGP_INTEL=y
1391# CONFIG_AGP_NVIDIA is not set
1392# CONFIG_AGP_SIS is not set
1393# CONFIG_AGP_SWORKS is not set
1394# CONFIG_AGP_VIA is not set
1395# CONFIG_AGP_EFFICEON is not set
1396CONFIG_DRM=y
1397# CONFIG_DRM_TDFX is not set
1398# CONFIG_DRM_R128 is not set
1399# CONFIG_DRM_RADEON is not set
1400# CONFIG_DRM_I810 is not set
1401# CONFIG_DRM_I830 is not set
1402CONFIG_DRM_I915=y
1403# CONFIG_DRM_MGA is not set
1404# CONFIG_DRM_SIS is not set
1405# CONFIG_DRM_VIA is not set
1406# CONFIG_DRM_SAVAGE is not set
1407# CONFIG_VGASTATE is not set
1408# CONFIG_VIDEO_OUTPUT_CONTROL is not set
1409CONFIG_FB=y
1410# CONFIG_FIRMWARE_EDID is not set
1411# CONFIG_FB_DDC is not set
1412CONFIG_FB_CFB_FILLRECT=y
1413CONFIG_FB_CFB_COPYAREA=y
1414CONFIG_FB_CFB_IMAGEBLIT=y
1415# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
1416# CONFIG_FB_SYS_FILLRECT is not set
1417# CONFIG_FB_SYS_COPYAREA is not set
1418# CONFIG_FB_SYS_IMAGEBLIT is not set
1419# CONFIG_FB_FOREIGN_ENDIAN is not set
1420# CONFIG_FB_SYS_FOPS is not set
1421CONFIG_FB_DEFERRED_IO=y
1422# CONFIG_FB_SVGALIB is not set
1423# CONFIG_FB_MACMODES is not set
1424# CONFIG_FB_BACKLIGHT is not set
1425CONFIG_FB_MODE_HELPERS=y
1426CONFIG_FB_TILEBLITTING=y
1427
1428#
1429# Frame buffer hardware drivers
1430#
1431# CONFIG_FB_CIRRUS is not set
1432# CONFIG_FB_PM2 is not set
1433# CONFIG_FB_CYBER2000 is not set
1434# CONFIG_FB_ARC is not set
1435# CONFIG_FB_ASILIANT is not set
1436# CONFIG_FB_IMSTT is not set
1437# CONFIG_FB_VGA16 is not set
1438# CONFIG_FB_UVESA is not set
1439# CONFIG_FB_VESA is not set
1440CONFIG_FB_EFI=y
1441# CONFIG_FB_IMAC is not set
1442# CONFIG_FB_N411 is not set
1443# CONFIG_FB_HGA is not set
1444# CONFIG_FB_S1D13XXX is not set
1445# CONFIG_FB_NVIDIA is not set
1446# CONFIG_FB_RIVA is not set
1447# CONFIG_FB_I810 is not set
1448# CONFIG_FB_LE80578 is not set
1449# CONFIG_FB_INTEL is not set
1450# CONFIG_FB_MATROX is not set
1451# CONFIG_FB_RADEON is not set
1452# CONFIG_FB_ATY128 is not set
1453# CONFIG_FB_ATY is not set
1454# CONFIG_FB_S3 is not set
1455# CONFIG_FB_SAVAGE is not set
1456# CONFIG_FB_SIS is not set
1457# CONFIG_FB_NEOMAGIC is not set
1458# CONFIG_FB_KYRO is not set
1459# CONFIG_FB_3DFX is not set
1460# CONFIG_FB_VOODOO1 is not set
1461# CONFIG_FB_VT8623 is not set
1462# CONFIG_FB_CYBLA is not set
1463# CONFIG_FB_TRIDENT is not set
1464# CONFIG_FB_ARK is not set
1465# CONFIG_FB_PM3 is not set
1466# CONFIG_FB_GEODE is not set
1467# CONFIG_FB_VIRTUAL is not set
1468CONFIG_BACKLIGHT_LCD_SUPPORT=y
1469# CONFIG_LCD_CLASS_DEVICE is not set
1470CONFIG_BACKLIGHT_CLASS_DEVICE=y
1471# CONFIG_BACKLIGHT_CORGI is not set
1472# CONFIG_BACKLIGHT_PROGEAR is not set
1021 1473
1022# 1474#
1023# Display device support 1475# Display device support
1024# 1476#
1025# CONFIG_DISPLAY_SUPPORT is not set 1477# CONFIG_DISPLAY_SUPPORT is not set
1026# CONFIG_VGASTATE is not set
1027# CONFIG_FB is not set
1028 1478
1029# 1479#
1030# Console display driver support 1480# Console display driver support
1031# 1481#
1032CONFIG_VGA_CONSOLE=y 1482CONFIG_VGA_CONSOLE=y
1033CONFIG_VGACON_SOFT_SCROLLBACK=y 1483CONFIG_VGACON_SOFT_SCROLLBACK=y
1034CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=128 1484CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
1035CONFIG_VIDEO_SELECT=y 1485CONFIG_VIDEO_SELECT=y
1036CONFIG_DUMMY_CONSOLE=y 1486CONFIG_DUMMY_CONSOLE=y
1487# CONFIG_FRAMEBUFFER_CONSOLE is not set
1488CONFIG_LOGO=y
1489# CONFIG_LOGO_LINUX_MONO is not set
1490# CONFIG_LOGO_LINUX_VGA16 is not set
1491CONFIG_LOGO_LINUX_CLUT224=y
1037 1492
1038# 1493#
1039# Sound 1494# Sound
@@ -1043,33 +1498,167 @@ CONFIG_SOUND=y
1043# 1498#
1044# Advanced Linux Sound Architecture 1499# Advanced Linux Sound Architecture
1045# 1500#
1046# CONFIG_SND is not set 1501CONFIG_SND=y
1502CONFIG_SND_TIMER=y
1503CONFIG_SND_PCM=y
1504CONFIG_SND_HWDEP=y
1505CONFIG_SND_SEQUENCER=y
1506CONFIG_SND_SEQ_DUMMY=y
1507CONFIG_SND_OSSEMUL=y
1508CONFIG_SND_MIXER_OSS=y
1509CONFIG_SND_PCM_OSS=y
1510CONFIG_SND_PCM_OSS_PLUGINS=y
1511CONFIG_SND_SEQUENCER_OSS=y
1512CONFIG_SND_DYNAMIC_MINORS=y
1513CONFIG_SND_SUPPORT_OLD_API=y
1514CONFIG_SND_VERBOSE_PROCFS=y
1515# CONFIG_SND_VERBOSE_PRINTK is not set
1516# CONFIG_SND_DEBUG is not set
1517CONFIG_SND_VMASTER=y
1518
1519#
1520# Generic devices
1521#
1522# CONFIG_SND_PCSP is not set
1523# CONFIG_SND_DUMMY is not set
1524# CONFIG_SND_VIRMIDI is not set
1525# CONFIG_SND_MTPAV is not set
1526# CONFIG_SND_SERIAL_U16550 is not set
1527# CONFIG_SND_MPU401 is not set
1528
1529#
1530# PCI devices
1531#
1532# CONFIG_SND_AD1889 is not set
1533# CONFIG_SND_ALS300 is not set
1534# CONFIG_SND_ALS4000 is not set
1535# CONFIG_SND_ALI5451 is not set
1536# CONFIG_SND_ATIIXP is not set
1537# CONFIG_SND_ATIIXP_MODEM is not set
1538# CONFIG_SND_AU8810 is not set
1539# CONFIG_SND_AU8820 is not set
1540# CONFIG_SND_AU8830 is not set
1541# CONFIG_SND_AW2 is not set
1542# CONFIG_SND_AZT3328 is not set
1543# CONFIG_SND_BT87X is not set
1544# CONFIG_SND_CA0106 is not set
1545# CONFIG_SND_CMIPCI is not set
1546# CONFIG_SND_OXYGEN is not set
1547# CONFIG_SND_CS4281 is not set
1548# CONFIG_SND_CS46XX is not set
1549# CONFIG_SND_CS5530 is not set
1550# CONFIG_SND_CS5535AUDIO is not set
1551# CONFIG_SND_DARLA20 is not set
1552# CONFIG_SND_GINA20 is not set
1553# CONFIG_SND_LAYLA20 is not set
1554# CONFIG_SND_DARLA24 is not set
1555# CONFIG_SND_GINA24 is not set
1556# CONFIG_SND_LAYLA24 is not set
1557# CONFIG_SND_MONA is not set
1558# CONFIG_SND_MIA is not set
1559# CONFIG_SND_ECHO3G is not set
1560# CONFIG_SND_INDIGO is not set
1561# CONFIG_SND_INDIGOIO is not set
1562# CONFIG_SND_INDIGODJ is not set
1563# CONFIG_SND_EMU10K1 is not set
1564# CONFIG_SND_EMU10K1X is not set
1565# CONFIG_SND_ENS1370 is not set
1566# CONFIG_SND_ENS1371 is not set
1567# CONFIG_SND_ES1938 is not set
1568# CONFIG_SND_ES1968 is not set
1569# CONFIG_SND_FM801 is not set
1570CONFIG_SND_HDA_INTEL=y
1571CONFIG_SND_HDA_HWDEP=y
1572CONFIG_SND_HDA_CODEC_REALTEK=y
1573CONFIG_SND_HDA_CODEC_ANALOG=y
1574CONFIG_SND_HDA_CODEC_SIGMATEL=y
1575CONFIG_SND_HDA_CODEC_VIA=y
1576CONFIG_SND_HDA_CODEC_ATIHDMI=y
1577CONFIG_SND_HDA_CODEC_CONEXANT=y
1578CONFIG_SND_HDA_CODEC_CMEDIA=y
1579CONFIG_SND_HDA_CODEC_SI3054=y
1580CONFIG_SND_HDA_GENERIC=y
1581# CONFIG_SND_HDA_POWER_SAVE is not set
1582# CONFIG_SND_HDSP is not set
1583# CONFIG_SND_HDSPM is not set
1584# CONFIG_SND_HIFIER is not set
1585# CONFIG_SND_ICE1712 is not set
1586# CONFIG_SND_ICE1724 is not set
1587# CONFIG_SND_INTEL8X0 is not set
1588# CONFIG_SND_INTEL8X0M is not set
1589# CONFIG_SND_KORG1212 is not set
1590# CONFIG_SND_MAESTRO3 is not set
1591# CONFIG_SND_MIXART is not set
1592# CONFIG_SND_NM256 is not set
1593# CONFIG_SND_PCXHR is not set
1594# CONFIG_SND_RIPTIDE is not set
1595# CONFIG_SND_RME32 is not set
1596# CONFIG_SND_RME96 is not set
1597# CONFIG_SND_RME9652 is not set
1598# CONFIG_SND_SIS7019 is not set
1599# CONFIG_SND_SONICVIBES is not set
1600# CONFIG_SND_TRIDENT is not set
1601# CONFIG_SND_VIA82XX is not set
1602# CONFIG_SND_VIA82XX_MODEM is not set
1603# CONFIG_SND_VIRTUOSO is not set
1604# CONFIG_SND_VX222 is not set
1605# CONFIG_SND_YMFPCI is not set
1606
1607#
1608# USB devices
1609#
1610# CONFIG_SND_USB_AUDIO is not set
1611# CONFIG_SND_USB_USX2Y is not set
1612# CONFIG_SND_USB_CAIAQ is not set
1613
1614#
1615# PCMCIA devices
1616#
1617# CONFIG_SND_VXPOCKET is not set
1618# CONFIG_SND_PDAUDIOCF is not set
1619
1620#
1621# System on Chip audio support
1622#
1623# CONFIG_SND_SOC is not set
1624
1625#
1626# ALSA SoC audio for Freescale SOCs
1627#
1628
1629#
1630# SoC Audio for the Texas Instruments OMAP
1631#
1047 1632
1048# 1633#
1049# Open Sound System 1634# Open Sound System
1050# 1635#
1051CONFIG_SOUND_PRIME=y 1636# CONFIG_SOUND_PRIME is not set
1052# CONFIG_SOUND_TRIDENT is not set
1053# CONFIG_SOUND_MSNDCLAS is not set
1054# CONFIG_SOUND_MSNDPIN is not set
1055# CONFIG_SOUND_OSS is not set
1056CONFIG_HID_SUPPORT=y 1637CONFIG_HID_SUPPORT=y
1057CONFIG_HID=y 1638CONFIG_HID=y
1058# CONFIG_HID_DEBUG is not set 1639CONFIG_HID_DEBUG=y
1640CONFIG_HIDRAW=y
1059 1641
1060# 1642#
1061# USB Input Devices 1643# USB Input Devices
1062# 1644#
1063CONFIG_USB_HID=y 1645CONFIG_USB_HID=y
1064# CONFIG_USB_HIDINPUT_POWERBOOK is not set 1646CONFIG_USB_HIDINPUT_POWERBOOK=y
1065# CONFIG_HID_FF is not set 1647CONFIG_HID_FF=y
1066# CONFIG_USB_HIDDEV is not set 1648CONFIG_HID_PID=y
1649CONFIG_LOGITECH_FF=y
1650# CONFIG_LOGIRUMBLEPAD2_FF is not set
1651CONFIG_PANTHERLORD_FF=y
1652CONFIG_THRUSTMASTER_FF=y
1653CONFIG_ZEROPLUS_FF=y
1654CONFIG_USB_HIDDEV=y
1067CONFIG_USB_SUPPORT=y 1655CONFIG_USB_SUPPORT=y
1068CONFIG_USB_ARCH_HAS_HCD=y 1656CONFIG_USB_ARCH_HAS_HCD=y
1069CONFIG_USB_ARCH_HAS_OHCI=y 1657CONFIG_USB_ARCH_HAS_OHCI=y
1070CONFIG_USB_ARCH_HAS_EHCI=y 1658CONFIG_USB_ARCH_HAS_EHCI=y
1071CONFIG_USB=y 1659CONFIG_USB=y
1072# CONFIG_USB_DEBUG is not set 1660CONFIG_USB_DEBUG=y
1661CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
1073 1662
1074# 1663#
1075# Miscellaneous USB options 1664# Miscellaneous USB options
@@ -1077,18 +1666,18 @@ CONFIG_USB=y
1077CONFIG_USB_DEVICEFS=y 1666CONFIG_USB_DEVICEFS=y
1078# CONFIG_USB_DEVICE_CLASS is not set 1667# CONFIG_USB_DEVICE_CLASS is not set
1079# CONFIG_USB_DYNAMIC_MINORS is not set 1668# CONFIG_USB_DYNAMIC_MINORS is not set
1080# CONFIG_USB_SUSPEND is not set 1669CONFIG_USB_SUSPEND=y
1081# CONFIG_USB_PERSIST is not set
1082# CONFIG_USB_OTG is not set 1670# CONFIG_USB_OTG is not set
1083 1671
1084# 1672#
1085# USB Host Controller Drivers 1673# USB Host Controller Drivers
1086# 1674#
1675# CONFIG_USB_C67X00_HCD is not set
1087CONFIG_USB_EHCI_HCD=y 1676CONFIG_USB_EHCI_HCD=y
1088# CONFIG_USB_EHCI_SPLIT_ISO is not set
1089# CONFIG_USB_EHCI_ROOT_HUB_TT is not set 1677# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
1090# CONFIG_USB_EHCI_TT_NEWSCHED is not set 1678# CONFIG_USB_EHCI_TT_NEWSCHED is not set
1091# CONFIG_USB_ISP116X_HCD is not set 1679# CONFIG_USB_ISP116X_HCD is not set
1680# CONFIG_USB_ISP1760_HCD is not set
1092CONFIG_USB_OHCI_HCD=y 1681CONFIG_USB_OHCI_HCD=y
1093# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set 1682# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
1094# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set 1683# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
@@ -1121,8 +1710,10 @@ CONFIG_USB_STORAGE=y
1121# CONFIG_USB_STORAGE_SDDR55 is not set 1710# CONFIG_USB_STORAGE_SDDR55 is not set
1122# CONFIG_USB_STORAGE_JUMPSHOT is not set 1711# CONFIG_USB_STORAGE_JUMPSHOT is not set
1123# CONFIG_USB_STORAGE_ALAUDA is not set 1712# CONFIG_USB_STORAGE_ALAUDA is not set
1713# CONFIG_USB_STORAGE_ONETOUCH is not set
1124# CONFIG_USB_STORAGE_KARMA is not set 1714# CONFIG_USB_STORAGE_KARMA is not set
1125# CONFIG_USB_LIBUSUAL is not set 1715# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
1716CONFIG_USB_LIBUSUAL=y
1126 1717
1127# 1718#
1128# USB Imaging devices 1719# USB Imaging devices
@@ -1134,10 +1725,6 @@ CONFIG_USB_MON=y
1134# 1725#
1135# USB port drivers 1726# USB port drivers
1136# 1727#
1137
1138#
1139# USB Serial Converter support
1140#
1141# CONFIG_USB_SERIAL is not set 1728# CONFIG_USB_SERIAL is not set
1142 1729
1143# 1730#
@@ -1163,90 +1750,125 @@ CONFIG_USB_MON=y
1163# CONFIG_USB_TRANCEVIBRATOR is not set 1750# CONFIG_USB_TRANCEVIBRATOR is not set
1164# CONFIG_USB_IOWARRIOR is not set 1751# CONFIG_USB_IOWARRIOR is not set
1165# CONFIG_USB_TEST is not set 1752# CONFIG_USB_TEST is not set
1753# CONFIG_USB_GADGET is not set
1754# CONFIG_MMC is not set
1755# CONFIG_MEMSTICK is not set
1756CONFIG_NEW_LEDS=y
1757CONFIG_LEDS_CLASS=y
1166 1758
1167# 1759#
1168# USB DSL modem support 1760# LED drivers
1169# 1761#
1762# CONFIG_LEDS_CLEVO_MAIL is not set
1170 1763
1171# 1764#
1172# USB Gadget Support 1765# LED Triggers
1173# 1766#
1174# CONFIG_USB_GADGET is not set 1767CONFIG_LEDS_TRIGGERS=y
1175# CONFIG_MMC is not set 1768# CONFIG_LEDS_TRIGGER_TIMER is not set
1769# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
1770# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
1771# CONFIG_ACCESSIBILITY is not set
1772# CONFIG_INFINIBAND is not set
1773CONFIG_EDAC=y
1176 1774
1177# 1775#
1178# LED devices 1776# Reporting subsystems
1179# 1777#
1180# CONFIG_NEW_LEDS is not set 1778# CONFIG_EDAC_DEBUG is not set
1779# CONFIG_EDAC_MM_EDAC is not set
1780CONFIG_RTC_LIB=y
1781CONFIG_RTC_CLASS=y
1782# CONFIG_RTC_HCTOSYS is not set
1783# CONFIG_RTC_DEBUG is not set
1181 1784
1182# 1785#
1183# LED drivers 1786# RTC interfaces
1184# 1787#
1788CONFIG_RTC_INTF_SYSFS=y
1789CONFIG_RTC_INTF_PROC=y
1790CONFIG_RTC_INTF_DEV=y
1791# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
1792# CONFIG_RTC_DRV_TEST is not set
1185 1793
1186# 1794#
1187# LED Triggers 1795# I2C RTC drivers
1188# 1796#
1189# CONFIG_INFINIBAND is not set 1797# CONFIG_RTC_DRV_DS1307 is not set
1190# CONFIG_EDAC is not set 1798# CONFIG_RTC_DRV_DS1374 is not set
1799# CONFIG_RTC_DRV_DS1672 is not set
1800# CONFIG_RTC_DRV_MAX6900 is not set
1801# CONFIG_RTC_DRV_RS5C372 is not set
1802# CONFIG_RTC_DRV_ISL1208 is not set
1803# CONFIG_RTC_DRV_X1205 is not set
1804# CONFIG_RTC_DRV_PCF8563 is not set
1805# CONFIG_RTC_DRV_PCF8583 is not set
1806# CONFIG_RTC_DRV_M41T80 is not set
1807# CONFIG_RTC_DRV_S35390A is not set
1191 1808
1192# 1809#
1193# Real Time Clock 1810# SPI RTC drivers
1194# 1811#
1195# CONFIG_RTC_CLASS is not set
1196 1812
1197# 1813#
1198# DMA Engine support 1814# Platform RTC drivers
1199# 1815#
1200# CONFIG_DMA_ENGINE is not set 1816CONFIG_RTC_DRV_CMOS=y
1817# CONFIG_RTC_DRV_DS1511 is not set
1818# CONFIG_RTC_DRV_DS1553 is not set
1819# CONFIG_RTC_DRV_DS1742 is not set
1820# CONFIG_RTC_DRV_STK17TA8 is not set
1821# CONFIG_RTC_DRV_M48T86 is not set
1822# CONFIG_RTC_DRV_M48T59 is not set
1823# CONFIG_RTC_DRV_V3020 is not set
1201 1824
1202# 1825#
1203# DMA Clients 1826# on-CPU RTC drivers
1204# 1827#
1828CONFIG_DMADEVICES=y
1205 1829
1206# 1830#
1207# DMA Devices 1831# DMA Devices
1208# 1832#
1209CONFIG_VIRTUALIZATION=y 1833# CONFIG_INTEL_IOATDMA is not set
1210# CONFIG_KVM is not set 1834# CONFIG_UIO is not set
1211 1835
1212# 1836#
1213# Userspace I/O 1837# Firmware Drivers
1214# 1838#
1215# CONFIG_UIO is not set 1839# CONFIG_EDD is not set
1840CONFIG_EFI_VARS=y
1841# CONFIG_DELL_RBU is not set
1842# CONFIG_DCDBAS is not set
1843CONFIG_DMIID=y
1844# CONFIG_ISCSI_IBFT_FIND is not set
1216 1845
1217# 1846#
1218# File systems 1847# File systems
1219# 1848#
1220CONFIG_EXT2_FS=y 1849# CONFIG_EXT2_FS is not set
1221CONFIG_EXT2_FS_XATTR=y
1222CONFIG_EXT2_FS_POSIX_ACL=y
1223# CONFIG_EXT2_FS_SECURITY is not set
1224# CONFIG_EXT2_FS_XIP is not set
1225CONFIG_EXT3_FS=y 1850CONFIG_EXT3_FS=y
1226CONFIG_EXT3_FS_XATTR=y 1851CONFIG_EXT3_FS_XATTR=y
1227CONFIG_EXT3_FS_POSIX_ACL=y 1852CONFIG_EXT3_FS_POSIX_ACL=y
1228# CONFIG_EXT3_FS_SECURITY is not set 1853CONFIG_EXT3_FS_SECURITY=y
1229# CONFIG_EXT4DEV_FS is not set 1854# CONFIG_EXT4DEV_FS is not set
1230CONFIG_JBD=y 1855CONFIG_JBD=y
1231# CONFIG_JBD_DEBUG is not set 1856# CONFIG_JBD_DEBUG is not set
1232CONFIG_FS_MBCACHE=y 1857CONFIG_FS_MBCACHE=y
1233CONFIG_REISERFS_FS=y 1858# CONFIG_REISERFS_FS is not set
1234# CONFIG_REISERFS_CHECK is not set
1235# CONFIG_REISERFS_PROC_INFO is not set
1236CONFIG_REISERFS_FS_XATTR=y
1237CONFIG_REISERFS_FS_POSIX_ACL=y
1238# CONFIG_REISERFS_FS_SECURITY is not set
1239# CONFIG_JFS_FS is not set 1859# CONFIG_JFS_FS is not set
1240CONFIG_FS_POSIX_ACL=y 1860CONFIG_FS_POSIX_ACL=y
1241# CONFIG_XFS_FS is not set 1861# CONFIG_XFS_FS is not set
1242# CONFIG_GFS2_FS is not set
1243# CONFIG_OCFS2_FS is not set 1862# CONFIG_OCFS2_FS is not set
1244# CONFIG_MINIX_FS is not set 1863CONFIG_DNOTIFY=y
1245# CONFIG_ROMFS_FS is not set
1246CONFIG_INOTIFY=y 1864CONFIG_INOTIFY=y
1247CONFIG_INOTIFY_USER=y 1865CONFIG_INOTIFY_USER=y
1248# CONFIG_QUOTA is not set 1866CONFIG_QUOTA=y
1249CONFIG_DNOTIFY=y 1867CONFIG_QUOTA_NETLINK_INTERFACE=y
1868# CONFIG_PRINT_QUOTA_WARNING is not set
1869# CONFIG_QFMT_V1 is not set
1870CONFIG_QFMT_V2=y
1871CONFIG_QUOTACTL=y
1250# CONFIG_AUTOFS_FS is not set 1872# CONFIG_AUTOFS_FS is not set
1251CONFIG_AUTOFS4_FS=y 1873CONFIG_AUTOFS4_FS=y
1252# CONFIG_FUSE_FS is not set 1874# CONFIG_FUSE_FS is not set
@@ -1256,8 +1878,8 @@ CONFIG_GENERIC_ACL=y
1256# CD-ROM/DVD Filesystems 1878# CD-ROM/DVD Filesystems
1257# 1879#
1258CONFIG_ISO9660_FS=y 1880CONFIG_ISO9660_FS=y
1259# CONFIG_JOLIET is not set 1881CONFIG_JOLIET=y
1260# CONFIG_ZISOFS is not set 1882CONFIG_ZISOFS=y
1261# CONFIG_UDF_FS is not set 1883# CONFIG_UDF_FS is not set
1262 1884
1263# 1885#
@@ -1275,13 +1897,13 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
1275# 1897#
1276CONFIG_PROC_FS=y 1898CONFIG_PROC_FS=y
1277CONFIG_PROC_KCORE=y 1899CONFIG_PROC_KCORE=y
1900CONFIG_PROC_VMCORE=y
1278CONFIG_PROC_SYSCTL=y 1901CONFIG_PROC_SYSCTL=y
1279CONFIG_SYSFS=y 1902CONFIG_SYSFS=y
1280CONFIG_TMPFS=y 1903CONFIG_TMPFS=y
1281CONFIG_TMPFS_POSIX_ACL=y 1904CONFIG_TMPFS_POSIX_ACL=y
1282CONFIG_HUGETLBFS=y 1905CONFIG_HUGETLBFS=y
1283CONFIG_HUGETLB_PAGE=y 1906CONFIG_HUGETLB_PAGE=y
1284CONFIG_RAMFS=y
1285# CONFIG_CONFIGFS_FS is not set 1907# CONFIG_CONFIGFS_FS is not set
1286 1908
1287# 1909#
@@ -1289,6 +1911,7 @@ CONFIG_RAMFS=y
1289# 1911#
1290# CONFIG_ADFS_FS is not set 1912# CONFIG_ADFS_FS is not set
1291# CONFIG_AFFS_FS is not set 1913# CONFIG_AFFS_FS is not set
1914# CONFIG_ECRYPT_FS is not set
1292# CONFIG_HFS_FS is not set 1915# CONFIG_HFS_FS is not set
1293# CONFIG_HFSPLUS_FS is not set 1916# CONFIG_HFSPLUS_FS is not set
1294# CONFIG_BEFS_FS is not set 1917# CONFIG_BEFS_FS is not set
@@ -1296,33 +1919,15 @@ CONFIG_RAMFS=y
1296# CONFIG_EFS_FS is not set 1919# CONFIG_EFS_FS is not set
1297# CONFIG_CRAMFS is not set 1920# CONFIG_CRAMFS is not set
1298# CONFIG_VXFS_FS is not set 1921# CONFIG_VXFS_FS is not set
1922# CONFIG_MINIX_FS is not set
1299# CONFIG_HPFS_FS is not set 1923# CONFIG_HPFS_FS is not set
1300# CONFIG_QNX4FS_FS is not set 1924# CONFIG_QNX4FS_FS is not set
1925# CONFIG_ROMFS_FS is not set
1301# CONFIG_SYSV_FS is not set 1926# CONFIG_SYSV_FS is not set
1302# CONFIG_UFS_FS is not set 1927# CONFIG_UFS_FS is not set
1303 1928CONFIG_NETWORK_FILESYSTEMS=y
1304# 1929# CONFIG_NFS_FS is not set
1305# Network File Systems 1930# CONFIG_NFSD is not set
1306#
1307CONFIG_NFS_FS=y
1308CONFIG_NFS_V3=y
1309# CONFIG_NFS_V3_ACL is not set
1310# CONFIG_NFS_V4 is not set
1311# CONFIG_NFS_DIRECTIO is not set
1312CONFIG_NFSD=y
1313CONFIG_NFSD_V3=y
1314# CONFIG_NFSD_V3_ACL is not set
1315# CONFIG_NFSD_V4 is not set
1316CONFIG_NFSD_TCP=y
1317CONFIG_ROOT_NFS=y
1318CONFIG_LOCKD=y
1319CONFIG_LOCKD_V4=y
1320CONFIG_EXPORTFS=y
1321CONFIG_NFS_COMMON=y
1322CONFIG_SUNRPC=y
1323# CONFIG_SUNRPC_BIND34 is not set
1324# CONFIG_RPCSEC_GSS_KRB5 is not set
1325# CONFIG_RPCSEC_GSS_SPKM3 is not set
1326# CONFIG_SMB_FS is not set 1931# CONFIG_SMB_FS is not set
1327# CONFIG_CIFS is not set 1932# CONFIG_CIFS is not set
1328# CONFIG_NCP_FS is not set 1933# CONFIG_NCP_FS is not set
@@ -1332,14 +1937,26 @@ CONFIG_SUNRPC=y
1332# 1937#
1333# Partition Types 1938# Partition Types
1334# 1939#
1335# CONFIG_PARTITION_ADVANCED is not set 1940CONFIG_PARTITION_ADVANCED=y
1941# CONFIG_ACORN_PARTITION is not set
1942CONFIG_OSF_PARTITION=y
1943CONFIG_AMIGA_PARTITION=y
1944# CONFIG_ATARI_PARTITION is not set
1945CONFIG_MAC_PARTITION=y
1336CONFIG_MSDOS_PARTITION=y 1946CONFIG_MSDOS_PARTITION=y
1337 1947CONFIG_BSD_DISKLABEL=y
1338# 1948CONFIG_MINIX_SUBPARTITION=y
1339# Native Language Support 1949CONFIG_SOLARIS_X86_PARTITION=y
1340# 1950CONFIG_UNIXWARE_DISKLABEL=y
1951# CONFIG_LDM_PARTITION is not set
1952CONFIG_SGI_PARTITION=y
1953# CONFIG_ULTRIX_PARTITION is not set
1954CONFIG_SUN_PARTITION=y
1955CONFIG_KARMA_PARTITION=y
1956CONFIG_EFI_PARTITION=y
1957# CONFIG_SYSV68_PARTITION is not set
1341CONFIG_NLS=y 1958CONFIG_NLS=y
1342CONFIG_NLS_DEFAULT="iso8859-1" 1959CONFIG_NLS_DEFAULT="utf8"
1343CONFIG_NLS_CODEPAGE_437=y 1960CONFIG_NLS_CODEPAGE_437=y
1344# CONFIG_NLS_CODEPAGE_737 is not set 1961# CONFIG_NLS_CODEPAGE_737 is not set
1345# CONFIG_NLS_CODEPAGE_775 is not set 1962# CONFIG_NLS_CODEPAGE_775 is not set
@@ -1374,37 +1991,33 @@ CONFIG_NLS_ISO8859_1=y
1374# CONFIG_NLS_ISO8859_9 is not set 1991# CONFIG_NLS_ISO8859_9 is not set
1375# CONFIG_NLS_ISO8859_13 is not set 1992# CONFIG_NLS_ISO8859_13 is not set
1376# CONFIG_NLS_ISO8859_14 is not set 1993# CONFIG_NLS_ISO8859_14 is not set
1377CONFIG_NLS_ISO8859_15=y 1994# CONFIG_NLS_ISO8859_15 is not set
1378# CONFIG_NLS_KOI8_R is not set 1995# CONFIG_NLS_KOI8_R is not set
1379# CONFIG_NLS_KOI8_U is not set 1996# CONFIG_NLS_KOI8_U is not set
1380CONFIG_NLS_UTF8=y 1997CONFIG_NLS_UTF8=y
1381
1382#
1383# Distributed Lock Manager
1384#
1385# CONFIG_DLM is not set 1998# CONFIG_DLM is not set
1386CONFIG_INSTRUMENTATION=y
1387CONFIG_PROFILING=y
1388CONFIG_OPROFILE=y
1389CONFIG_KPROBES=y
1390 1999
1391# 2000#
1392# Kernel hacking 2001# Kernel hacking
1393# 2002#
1394CONFIG_TRACE_IRQFLAGS_SUPPORT=y 2003CONFIG_TRACE_IRQFLAGS_SUPPORT=y
1395# CONFIG_PRINTK_TIME is not set 2004# CONFIG_PRINTK_TIME is not set
2005# CONFIG_ENABLE_WARN_DEPRECATED is not set
1396# CONFIG_ENABLE_MUST_CHECK is not set 2006# CONFIG_ENABLE_MUST_CHECK is not set
2007CONFIG_FRAME_WARN=2048
1397CONFIG_MAGIC_SYSRQ=y 2008CONFIG_MAGIC_SYSRQ=y
1398CONFIG_UNUSED_SYMBOLS=y 2009# CONFIG_UNUSED_SYMBOLS is not set
1399# CONFIG_DEBUG_FS is not set 2010CONFIG_DEBUG_FS=y
1400# CONFIG_HEADERS_CHECK is not set 2011# CONFIG_HEADERS_CHECK is not set
1401CONFIG_DEBUG_KERNEL=y 2012CONFIG_DEBUG_KERNEL=y
1402# CONFIG_DEBUG_SHIRQ is not set 2013# CONFIG_DEBUG_SHIRQ is not set
1403CONFIG_DETECT_SOFTLOCKUP=y 2014# CONFIG_DETECT_SOFTLOCKUP is not set
1404# CONFIG_SCHED_DEBUG is not set 2015# CONFIG_SCHED_DEBUG is not set
1405# CONFIG_SCHEDSTATS is not set 2016CONFIG_SCHEDSTATS=y
1406CONFIG_TIMER_STATS=y 2017CONFIG_TIMER_STATS=y
2018# CONFIG_DEBUG_OBJECTS is not set
1407# CONFIG_SLUB_DEBUG_ON is not set 2019# CONFIG_SLUB_DEBUG_ON is not set
2020# CONFIG_SLUB_STATS is not set
1408# CONFIG_DEBUG_RT_MUTEXES is not set 2021# CONFIG_DEBUG_RT_MUTEXES is not set
1409# CONFIG_RT_MUTEX_TESTER is not set 2022# CONFIG_RT_MUTEX_TESTER is not set
1410# CONFIG_DEBUG_SPINLOCK is not set 2023# CONFIG_DEBUG_SPINLOCK is not set
@@ -1419,48 +2032,174 @@ CONFIG_TIMER_STATS=y
1419CONFIG_DEBUG_BUGVERBOSE=y 2032CONFIG_DEBUG_BUGVERBOSE=y
1420# CONFIG_DEBUG_INFO is not set 2033# CONFIG_DEBUG_INFO is not set
1421# CONFIG_DEBUG_VM is not set 2034# CONFIG_DEBUG_VM is not set
2035# CONFIG_DEBUG_WRITECOUNT is not set
1422# CONFIG_DEBUG_LIST is not set 2036# CONFIG_DEBUG_LIST is not set
1423# CONFIG_FRAME_POINTER is not set 2037# CONFIG_DEBUG_SG is not set
1424CONFIG_OPTIMIZE_INLINING=y 2038CONFIG_FRAME_POINTER=y
2039# CONFIG_BOOT_PRINTK_DELAY is not set
1425# CONFIG_RCU_TORTURE_TEST is not set 2040# CONFIG_RCU_TORTURE_TEST is not set
2041# CONFIG_KPROBES_SANITY_TEST is not set
2042# CONFIG_BACKTRACE_SELF_TEST is not set
1426# CONFIG_LKDTM is not set 2043# CONFIG_LKDTM is not set
1427# CONFIG_FAULT_INJECTION is not set 2044# CONFIG_FAULT_INJECTION is not set
2045# CONFIG_LATENCYTOP is not set
2046CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
2047# CONFIG_SAMPLES is not set
2048# CONFIG_KGDB is not set
2049CONFIG_HAVE_ARCH_KGDB=y
2050# CONFIG_NONPROMISC_DEVMEM is not set
1428CONFIG_EARLY_PRINTK=y 2051CONFIG_EARLY_PRINTK=y
1429CONFIG_DEBUG_STACKOVERFLOW=y 2052CONFIG_DEBUG_STACKOVERFLOW=y
1430# CONFIG_DEBUG_STACK_USAGE is not set 2053CONFIG_DEBUG_STACK_USAGE=y
1431# CONFIG_DEBUG_RODATA is not set 2054# CONFIG_DEBUG_PAGEALLOC is not set
2055# CONFIG_X86_PTDUMP is not set
2056CONFIG_DEBUG_RODATA=y
2057# CONFIG_DEBUG_RODATA_TEST is not set
2058CONFIG_DEBUG_NX_TEST=m
1432# CONFIG_4KSTACKS is not set 2059# CONFIG_4KSTACKS is not set
1433CONFIG_X86_FIND_SMP_CONFIG=y 2060CONFIG_X86_FIND_SMP_CONFIG=y
1434CONFIG_X86_MPPARSE=y 2061CONFIG_X86_MPPARSE=y
1435CONFIG_DOUBLEFAULT=y 2062CONFIG_DOUBLEFAULT=y
2063CONFIG_IO_DELAY_TYPE_0X80=0
2064CONFIG_IO_DELAY_TYPE_0XED=1
2065CONFIG_IO_DELAY_TYPE_UDELAY=2
2066CONFIG_IO_DELAY_TYPE_NONE=3
2067CONFIG_IO_DELAY_0X80=y
2068# CONFIG_IO_DELAY_0XED is not set
2069# CONFIG_IO_DELAY_UDELAY is not set
2070# CONFIG_IO_DELAY_NONE is not set
2071CONFIG_DEFAULT_IO_DELAY_TYPE=0
2072CONFIG_DEBUG_BOOT_PARAMS=y
2073# CONFIG_CPA_DEBUG is not set
1436 2074
1437# 2075#
1438# Security options 2076# Security options
1439# 2077#
1440# CONFIG_KEYS is not set 2078CONFIG_KEYS=y
1441# CONFIG_SECURITY is not set 2079CONFIG_KEYS_DEBUG_PROC_KEYS=y
1442# CONFIG_CRYPTO is not set 2080CONFIG_SECURITY=y
2081CONFIG_SECURITY_NETWORK=y
2082# CONFIG_SECURITY_NETWORK_XFRM is not set
2083CONFIG_SECURITY_CAPABILITIES=y
2084CONFIG_SECURITY_FILE_CAPABILITIES=y
2085# CONFIG_SECURITY_ROOTPLUG is not set
2086CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=65536
2087CONFIG_SECURITY_SELINUX=y
2088CONFIG_SECURITY_SELINUX_BOOTPARAM=y
2089CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
2090CONFIG_SECURITY_SELINUX_DISABLE=y
2091CONFIG_SECURITY_SELINUX_DEVELOP=y
2092CONFIG_SECURITY_SELINUX_AVC_STATS=y
2093CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
2094# CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT is not set
2095# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
2096# CONFIG_SECURITY_SMACK is not set
2097CONFIG_CRYPTO=y
2098
2099#
2100# Crypto core or helper
2101#
2102CONFIG_CRYPTO_ALGAPI=y
2103CONFIG_CRYPTO_AEAD=y
2104CONFIG_CRYPTO_BLKCIPHER=y
2105CONFIG_CRYPTO_HASH=y
2106CONFIG_CRYPTO_MANAGER=y
2107# CONFIG_CRYPTO_GF128MUL is not set
2108# CONFIG_CRYPTO_NULL is not set
2109# CONFIG_CRYPTO_CRYPTD is not set
2110CONFIG_CRYPTO_AUTHENC=y
2111# CONFIG_CRYPTO_TEST is not set
2112
2113#
2114# Authenticated Encryption with Associated Data
2115#
2116# CONFIG_CRYPTO_CCM is not set
2117# CONFIG_CRYPTO_GCM is not set
2118# CONFIG_CRYPTO_SEQIV is not set
2119
2120#
2121# Block modes
2122#
2123CONFIG_CRYPTO_CBC=y
2124# CONFIG_CRYPTO_CTR is not set
2125# CONFIG_CRYPTO_CTS is not set
2126CONFIG_CRYPTO_ECB=y
2127# CONFIG_CRYPTO_LRW is not set
2128# CONFIG_CRYPTO_PCBC is not set
2129# CONFIG_CRYPTO_XTS is not set
2130
2131#
2132# Hash modes
2133#
2134CONFIG_CRYPTO_HMAC=y
2135# CONFIG_CRYPTO_XCBC is not set
2136
2137#
2138# Digest
2139#
2140# CONFIG_CRYPTO_CRC32C is not set
2141# CONFIG_CRYPTO_MD4 is not set
2142CONFIG_CRYPTO_MD5=y
2143# CONFIG_CRYPTO_MICHAEL_MIC is not set
2144CONFIG_CRYPTO_SHA1=y
2145# CONFIG_CRYPTO_SHA256 is not set
2146# CONFIG_CRYPTO_SHA512 is not set
2147# CONFIG_CRYPTO_TGR192 is not set
2148# CONFIG_CRYPTO_WP512 is not set
2149
2150#
2151# Ciphers
2152#
2153CONFIG_CRYPTO_AES=y
2154# CONFIG_CRYPTO_AES_586 is not set
2155# CONFIG_CRYPTO_ANUBIS is not set
2156CONFIG_CRYPTO_ARC4=y
2157# CONFIG_CRYPTO_BLOWFISH is not set
2158# CONFIG_CRYPTO_CAMELLIA is not set
2159# CONFIG_CRYPTO_CAST5 is not set
2160# CONFIG_CRYPTO_CAST6 is not set
2161CONFIG_CRYPTO_DES=y
2162# CONFIG_CRYPTO_FCRYPT is not set
2163# CONFIG_CRYPTO_KHAZAD is not set
2164# CONFIG_CRYPTO_SALSA20 is not set
2165# CONFIG_CRYPTO_SALSA20_586 is not set
2166# CONFIG_CRYPTO_SEED is not set
2167# CONFIG_CRYPTO_SERPENT is not set
2168# CONFIG_CRYPTO_TEA is not set
2169# CONFIG_CRYPTO_TWOFISH is not set
2170# CONFIG_CRYPTO_TWOFISH_586 is not set
2171
2172#
2173# Compression
2174#
2175# CONFIG_CRYPTO_DEFLATE is not set
2176# CONFIG_CRYPTO_LZO is not set
2177CONFIG_CRYPTO_HW=y
2178# CONFIG_CRYPTO_DEV_PADLOCK is not set
2179# CONFIG_CRYPTO_DEV_GEODE is not set
2180# CONFIG_CRYPTO_DEV_HIFN_795X is not set
2181CONFIG_HAVE_KVM=y
2182CONFIG_VIRTUALIZATION=y
2183# CONFIG_KVM is not set
2184# CONFIG_LGUEST is not set
2185# CONFIG_VIRTIO_PCI is not set
2186# CONFIG_VIRTIO_BALLOON is not set
1443 2187
1444# 2188#
1445# Library routines 2189# Library routines
1446# 2190#
1447CONFIG_BITREVERSE=y 2191CONFIG_BITREVERSE=y
2192CONFIG_GENERIC_FIND_FIRST_BIT=y
2193CONFIG_GENERIC_FIND_NEXT_BIT=y
1448# CONFIG_CRC_CCITT is not set 2194# CONFIG_CRC_CCITT is not set
1449# CONFIG_CRC16 is not set 2195# CONFIG_CRC16 is not set
1450# CONFIG_CRC_ITU_T is not set 2196# CONFIG_CRC_ITU_T is not set
1451CONFIG_CRC32=y 2197CONFIG_CRC32=y
1452# CONFIG_CRC7 is not set 2198# CONFIG_CRC7 is not set
1453# CONFIG_LIBCRC32C is not set 2199# CONFIG_LIBCRC32C is not set
2200CONFIG_AUDIT_GENERIC=y
1454CONFIG_ZLIB_INFLATE=y 2201CONFIG_ZLIB_INFLATE=y
1455CONFIG_PLIST=y 2202CONFIG_PLIST=y
1456CONFIG_HAS_IOMEM=y 2203CONFIG_HAS_IOMEM=y
1457CONFIG_HAS_IOPORT=y 2204CONFIG_HAS_IOPORT=y
1458CONFIG_HAS_DMA=y 2205CONFIG_HAS_DMA=y
1459CONFIG_GENERIC_HARDIRQS=y
1460CONFIG_GENERIC_IRQ_PROBE=y
1461CONFIG_GENERIC_PENDING_IRQ=y
1462CONFIG_X86_SMP=y
1463CONFIG_X86_HT=y
1464CONFIG_X86_BIOS_REBOOT=y
1465CONFIG_X86_TRAMPOLINE=y
1466CONFIG_KTIME_SCALAR=y
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 2d6f5b2809d2..ae5124e064d4 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -1,64 +1,103 @@
1# 1#
2# Automatically generated make config: don't edit 2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.22-git14 3# Linux kernel version: 2.6.26-rc1
4# Fri Jul 20 09:53:15 2007 4# Sun May 4 19:59:57 2008
5# 5#
6CONFIG_X86_64=y
7CONFIG_64BIT=y 6CONFIG_64BIT=y
7# CONFIG_X86_32 is not set
8CONFIG_X86_64=y
8CONFIG_X86=y 9CONFIG_X86=y
10CONFIG_DEFCONFIG_LIST="arch/x86/configs/x86_64_defconfig"
11# CONFIG_GENERIC_LOCKBREAK is not set
9CONFIG_GENERIC_TIME=y 12CONFIG_GENERIC_TIME=y
10CONFIG_GENERIC_TIME_VSYSCALL=y
11CONFIG_GENERIC_CMOS_UPDATE=y 13CONFIG_GENERIC_CMOS_UPDATE=y
12CONFIG_ZONE_DMA32=y 14CONFIG_CLOCKSOURCE_WATCHDOG=y
15CONFIG_GENERIC_CLOCKEVENTS=y
16CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
13CONFIG_LOCKDEP_SUPPORT=y 17CONFIG_LOCKDEP_SUPPORT=y
14CONFIG_STACKTRACE_SUPPORT=y 18CONFIG_STACKTRACE_SUPPORT=y
15CONFIG_SEMAPHORE_SLEEPERS=y 19CONFIG_HAVE_LATENCYTOP_SUPPORT=y
20CONFIG_FAST_CMPXCHG_LOCAL=y
16CONFIG_MMU=y 21CONFIG_MMU=y
17CONFIG_ZONE_DMA=y 22CONFIG_ZONE_DMA=y
18CONFIG_QUICKLIST=y
19CONFIG_NR_QUICK=2
20CONFIG_RWSEM_GENERIC_SPINLOCK=y
21CONFIG_GENERIC_HWEIGHT=y
22CONFIG_GENERIC_CALIBRATE_DELAY=y
23CONFIG_X86_CMPXCHG=y
24CONFIG_EARLY_PRINTK=y
25CONFIG_GENERIC_ISA_DMA=y 23CONFIG_GENERIC_ISA_DMA=y
26CONFIG_GENERIC_IOMAP=y 24CONFIG_GENERIC_IOMAP=y
27CONFIG_ARCH_MAY_HAVE_PC_FDC=y
28CONFIG_ARCH_POPULATES_NODE_MAP=y
29CONFIG_DMI=y
30CONFIG_AUDIT_ARCH=y
31CONFIG_GENERIC_BUG=y 25CONFIG_GENERIC_BUG=y
26CONFIG_GENERIC_HWEIGHT=y
27# CONFIG_GENERIC_GPIO is not set
28CONFIG_ARCH_MAY_HAVE_PC_FDC=y
29CONFIG_RWSEM_GENERIC_SPINLOCK=y
30# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
32# CONFIG_ARCH_HAS_ILOG2_U32 is not set 31# CONFIG_ARCH_HAS_ILOG2_U32 is not set
33# CONFIG_ARCH_HAS_ILOG2_U64 is not set 32# CONFIG_ARCH_HAS_ILOG2_U64 is not set
34CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" 33CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
34CONFIG_GENERIC_CALIBRATE_DELAY=y
35CONFIG_GENERIC_TIME_VSYSCALL=y
36CONFIG_ARCH_HAS_CPU_RELAX=y
37CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
38CONFIG_HAVE_SETUP_PER_CPU_AREA=y
39CONFIG_HAVE_CPUMASK_OF_CPU_MAP=y
40CONFIG_ARCH_HIBERNATION_POSSIBLE=y
41CONFIG_ARCH_SUSPEND_POSSIBLE=y
42CONFIG_ZONE_DMA32=y
43CONFIG_ARCH_POPULATES_NODE_MAP=y
44CONFIG_AUDIT_ARCH=y
45CONFIG_ARCH_SUPPORTS_AOUT=y
46CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
47CONFIG_GENERIC_HARDIRQS=y
48CONFIG_GENERIC_IRQ_PROBE=y
49CONFIG_GENERIC_PENDING_IRQ=y
50CONFIG_X86_SMP=y
51CONFIG_X86_64_SMP=y
52CONFIG_X86_HT=y
53CONFIG_X86_BIOS_REBOOT=y
54CONFIG_X86_TRAMPOLINE=y
55# CONFIG_KTIME_SCALAR is not set
35 56
36# 57#
37# Code maturity level options 58# General setup
38# 59#
39CONFIG_EXPERIMENTAL=y 60CONFIG_EXPERIMENTAL=y
40CONFIG_LOCK_KERNEL=y 61CONFIG_LOCK_KERNEL=y
41CONFIG_INIT_ENV_ARG_LIMIT=32 62CONFIG_INIT_ENV_ARG_LIMIT=32
42
43#
44# General setup
45#
46CONFIG_LOCALVERSION="" 63CONFIG_LOCALVERSION=""
47CONFIG_LOCALVERSION_AUTO=y 64# CONFIG_LOCALVERSION_AUTO is not set
48CONFIG_SWAP=y 65CONFIG_SWAP=y
49CONFIG_SYSVIPC=y 66CONFIG_SYSVIPC=y
50CONFIG_SYSVIPC_SYSCTL=y 67CONFIG_SYSVIPC_SYSCTL=y
51CONFIG_POSIX_MQUEUE=y 68CONFIG_POSIX_MQUEUE=y
52# CONFIG_BSD_PROCESS_ACCT is not set 69CONFIG_BSD_PROCESS_ACCT=y
53# CONFIG_TASKSTATS is not set 70# CONFIG_BSD_PROCESS_ACCT_V3 is not set
54# CONFIG_USER_NS is not set 71CONFIG_TASKSTATS=y
55# CONFIG_AUDIT is not set 72CONFIG_TASK_DELAY_ACCT=y
56CONFIG_IKCONFIG=y 73CONFIG_TASK_XACCT=y
57CONFIG_IKCONFIG_PROC=y 74CONFIG_TASK_IO_ACCOUNTING=y
58CONFIG_LOG_BUF_SHIFT=18 75CONFIG_AUDIT=y
59# CONFIG_CPUSETS is not set 76CONFIG_AUDITSYSCALL=y
60CONFIG_SYSFS_DEPRECATED=y 77CONFIG_AUDIT_TREE=y
78# CONFIG_IKCONFIG is not set
79CONFIG_LOG_BUF_SHIFT=17
80CONFIG_CGROUPS=y
81# CONFIG_CGROUP_DEBUG is not set
82CONFIG_CGROUP_NS=y
83# CONFIG_CGROUP_DEVICE is not set
84CONFIG_CPUSETS=y
85CONFIG_GROUP_SCHED=y
86CONFIG_FAIR_GROUP_SCHED=y
87# CONFIG_RT_GROUP_SCHED is not set
88# CONFIG_USER_SCHED is not set
89CONFIG_CGROUP_SCHED=y
90CONFIG_CGROUP_CPUACCT=y
91CONFIG_RESOURCE_COUNTERS=y
92# CONFIG_CGROUP_MEM_RES_CTLR is not set
93# CONFIG_SYSFS_DEPRECATED_V2 is not set
94CONFIG_PROC_PID_CPUSET=y
61CONFIG_RELAY=y 95CONFIG_RELAY=y
96CONFIG_NAMESPACES=y
97CONFIG_UTS_NS=y
98CONFIG_IPC_NS=y
99CONFIG_USER_NS=y
100CONFIG_PID_NS=y
62CONFIG_BLK_DEV_INITRD=y 101CONFIG_BLK_DEV_INITRD=y
63CONFIG_INITRAMFS_SOURCE="" 102CONFIG_INITRAMFS_SOURCE=""
64CONFIG_CC_OPTIMIZE_FOR_SIZE=y 103CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -66,13 +105,15 @@ CONFIG_SYSCTL=y
66# CONFIG_EMBEDDED is not set 105# CONFIG_EMBEDDED is not set
67CONFIG_UID16=y 106CONFIG_UID16=y
68CONFIG_SYSCTL_SYSCALL=y 107CONFIG_SYSCTL_SYSCALL=y
108CONFIG_SYSCTL_SYSCALL_CHECK=y
69CONFIG_KALLSYMS=y 109CONFIG_KALLSYMS=y
70CONFIG_KALLSYMS_ALL=y 110CONFIG_KALLSYMS_ALL=y
71# CONFIG_KALLSYMS_EXTRA_PASS is not set 111CONFIG_KALLSYMS_EXTRA_PASS=y
72CONFIG_HOTPLUG=y 112CONFIG_HOTPLUG=y
73CONFIG_PRINTK=y 113CONFIG_PRINTK=y
74CONFIG_BUG=y 114CONFIG_BUG=y
75CONFIG_ELF_CORE=y 115CONFIG_ELF_CORE=y
116# CONFIG_COMPAT_BRK is not set
76CONFIG_BASE_FULL=y 117CONFIG_BASE_FULL=y
77CONFIG_FUTEX=y 118CONFIG_FUTEX=y
78CONFIG_ANON_INODES=y 119CONFIG_ANON_INODES=y
@@ -82,9 +123,21 @@ CONFIG_TIMERFD=y
82CONFIG_EVENTFD=y 123CONFIG_EVENTFD=y
83CONFIG_SHMEM=y 124CONFIG_SHMEM=y
84CONFIG_VM_EVENT_COUNTERS=y 125CONFIG_VM_EVENT_COUNTERS=y
85CONFIG_SLAB=y 126CONFIG_SLUB_DEBUG=y
86# CONFIG_SLUB is not set 127# CONFIG_SLAB is not set
128CONFIG_SLUB=y
87# CONFIG_SLOB is not set 129# CONFIG_SLOB is not set
130CONFIG_PROFILING=y
131CONFIG_MARKERS=y
132# CONFIG_OPROFILE is not set
133CONFIG_HAVE_OPROFILE=y
134CONFIG_KPROBES=y
135CONFIG_KRETPROBES=y
136CONFIG_HAVE_KPROBES=y
137CONFIG_HAVE_KRETPROBES=y
138# CONFIG_HAVE_DMA_ATTRS is not set
139CONFIG_PROC_PAGE_MONITOR=y
140CONFIG_SLABINFO=y
88CONFIG_RT_MUTEXES=y 141CONFIG_RT_MUTEXES=y
89# CONFIG_TINY_SHMEM is not set 142# CONFIG_TINY_SHMEM is not set
90CONFIG_BASE_SMALL=0 143CONFIG_BASE_SMALL=0
@@ -96,14 +149,15 @@ CONFIG_MODULE_FORCE_UNLOAD=y
96# CONFIG_KMOD is not set 149# CONFIG_KMOD is not set
97CONFIG_STOP_MACHINE=y 150CONFIG_STOP_MACHINE=y
98CONFIG_BLOCK=y 151CONFIG_BLOCK=y
99# CONFIG_BLK_DEV_IO_TRACE is not set 152CONFIG_BLK_DEV_IO_TRACE=y
100# CONFIG_BLK_DEV_BSG is not set 153CONFIG_BLK_DEV_BSG=y
154CONFIG_BLOCK_COMPAT=y
101 155
102# 156#
103# IO Schedulers 157# IO Schedulers
104# 158#
105CONFIG_IOSCHED_NOOP=y 159CONFIG_IOSCHED_NOOP=y
106# CONFIG_IOSCHED_AS is not set 160CONFIG_IOSCHED_AS=y
107CONFIG_IOSCHED_DEADLINE=y 161CONFIG_IOSCHED_DEADLINE=y
108CONFIG_IOSCHED_CFQ=y 162CONFIG_IOSCHED_CFQ=y
109# CONFIG_DEFAULT_AS is not set 163# CONFIG_DEFAULT_AS is not set
@@ -111,107 +165,177 @@ CONFIG_IOSCHED_CFQ=y
111CONFIG_DEFAULT_CFQ=y 165CONFIG_DEFAULT_CFQ=y
112# CONFIG_DEFAULT_NOOP is not set 166# CONFIG_DEFAULT_NOOP is not set
113CONFIG_DEFAULT_IOSCHED="cfq" 167CONFIG_DEFAULT_IOSCHED="cfq"
168CONFIG_CLASSIC_RCU=y
114 169
115# 170#
116# Processor type and features 171# Processor type and features
117# 172#
173CONFIG_TICK_ONESHOT=y
174CONFIG_NO_HZ=y
175CONFIG_HIGH_RES_TIMERS=y
176CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
177CONFIG_SMP=y
118CONFIG_X86_PC=y 178CONFIG_X86_PC=y
179# CONFIG_X86_ELAN is not set
180# CONFIG_X86_VOYAGER is not set
181# CONFIG_X86_NUMAQ is not set
182# CONFIG_X86_SUMMIT is not set
183# CONFIG_X86_BIGSMP is not set
184# CONFIG_X86_VISWS is not set
185# CONFIG_X86_GENERICARCH is not set
186# CONFIG_X86_ES7000 is not set
187# CONFIG_X86_RDC321X is not set
119# CONFIG_X86_VSMP is not set 188# CONFIG_X86_VSMP is not set
189# CONFIG_PARAVIRT_GUEST is not set
190CONFIG_MEMTEST_BOOTPARAM=y
191CONFIG_MEMTEST_BOOTPARAM_VALUE=0
192# CONFIG_M386 is not set
193# CONFIG_M486 is not set
194# CONFIG_M586 is not set
195# CONFIG_M586TSC is not set
196# CONFIG_M586MMX is not set
197# CONFIG_M686 is not set
198# CONFIG_MPENTIUMII is not set
199# CONFIG_MPENTIUMIII is not set
200# CONFIG_MPENTIUMM is not set
201# CONFIG_MPENTIUM4 is not set
202# CONFIG_MK6 is not set
203# CONFIG_MK7 is not set
120# CONFIG_MK8 is not set 204# CONFIG_MK8 is not set
205# CONFIG_MCRUSOE is not set
206# CONFIG_MEFFICEON is not set
207# CONFIG_MWINCHIPC6 is not set
208# CONFIG_MWINCHIP2 is not set
209# CONFIG_MWINCHIP3D is not set
210# CONFIG_MGEODEGX1 is not set
211# CONFIG_MGEODE_LX is not set
212# CONFIG_MCYRIXIII is not set
213# CONFIG_MVIAC3_2 is not set
214# CONFIG_MVIAC7 is not set
121# CONFIG_MPSC is not set 215# CONFIG_MPSC is not set
122# CONFIG_MCORE2 is not set 216CONFIG_MCORE2=y
123CONFIG_GENERIC_CPU=y 217# CONFIG_GENERIC_CPU is not set
124CONFIG_X86_L1_CACHE_BYTES=128 218CONFIG_X86_CPU=y
125CONFIG_X86_L1_CACHE_SHIFT=7 219CONFIG_X86_L1_CACHE_BYTES=64
126CONFIG_X86_INTERNODE_CACHE_BYTES=128 220CONFIG_X86_INTERNODE_CACHE_BYTES=64
127CONFIG_X86_TSC=y 221CONFIG_X86_CMPXCHG=y
222CONFIG_X86_L1_CACHE_SHIFT=6
128CONFIG_X86_GOOD_APIC=y 223CONFIG_X86_GOOD_APIC=y
129# CONFIG_MICROCODE is not set 224CONFIG_X86_INTEL_USERCOPY=y
130CONFIG_X86_MSR=y 225CONFIG_X86_USE_PPRO_CHECKSUM=y
131CONFIG_X86_CPUID=y 226CONFIG_X86_P6_NOP=y
132CONFIG_X86_HT=y 227CONFIG_X86_TSC=y
133CONFIG_X86_IO_APIC=y 228CONFIG_X86_CMOV=y
134CONFIG_X86_LOCAL_APIC=y 229CONFIG_X86_MINIMUM_CPU_FAMILY=64
135CONFIG_MTRR=y 230CONFIG_X86_DEBUGCTLMSR=y
136CONFIG_SMP=y 231CONFIG_HPET_TIMER=y
137CONFIG_SCHED_SMT=y 232CONFIG_HPET_EMULATE_RTC=y
233CONFIG_DMI=y
234CONFIG_GART_IOMMU=y
235CONFIG_CALGARY_IOMMU=y
236CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
237CONFIG_SWIOTLB=y
238CONFIG_IOMMU_HELPER=y
239CONFIG_NR_CPUS=4
240# CONFIG_SCHED_SMT is not set
138CONFIG_SCHED_MC=y 241CONFIG_SCHED_MC=y
139# CONFIG_PREEMPT_NONE is not set 242# CONFIG_PREEMPT_NONE is not set
140CONFIG_PREEMPT_VOLUNTARY=y 243CONFIG_PREEMPT_VOLUNTARY=y
141# CONFIG_PREEMPT is not set 244# CONFIG_PREEMPT is not set
142CONFIG_PREEMPT_BKL=y 245CONFIG_X86_LOCAL_APIC=y
246CONFIG_X86_IO_APIC=y
247# CONFIG_X86_MCE is not set
248# CONFIG_I8K is not set
249# CONFIG_MICROCODE is not set
250CONFIG_X86_MSR=y
251CONFIG_X86_CPUID=y
143CONFIG_NUMA=y 252CONFIG_NUMA=y
144CONFIG_K8_NUMA=y 253CONFIG_K8_NUMA=y
145CONFIG_NODES_SHIFT=6
146CONFIG_X86_64_ACPI_NUMA=y 254CONFIG_X86_64_ACPI_NUMA=y
147CONFIG_NUMA_EMU=y 255CONFIG_NODES_SPAN_OTHER_NODES=y
256# CONFIG_NUMA_EMU is not set
257CONFIG_NODES_SHIFT=6
258CONFIG_ARCH_SPARSEMEM_DEFAULT=y
259CONFIG_ARCH_SPARSEMEM_ENABLE=y
260CONFIG_ARCH_SELECT_MEMORY_MODEL=y
261CONFIG_SELECT_MEMORY_MODEL=y
262# CONFIG_FLATMEM_MANUAL is not set
263# CONFIG_DISCONTIGMEM_MANUAL is not set
264CONFIG_SPARSEMEM_MANUAL=y
265CONFIG_SPARSEMEM=y
148CONFIG_NEED_MULTIPLE_NODES=y 266CONFIG_NEED_MULTIPLE_NODES=y
267CONFIG_HAVE_MEMORY_PRESENT=y
149# CONFIG_SPARSEMEM_STATIC is not set 268# CONFIG_SPARSEMEM_STATIC is not set
269CONFIG_SPARSEMEM_EXTREME=y
270CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
271CONFIG_SPARSEMEM_VMEMMAP=y
272
273#
274# Memory hotplug is currently incompatible with Software Suspend
275#
276CONFIG_PAGEFLAGS_EXTENDED=y
150CONFIG_SPLIT_PTLOCK_CPUS=4 277CONFIG_SPLIT_PTLOCK_CPUS=4
151CONFIG_MIGRATION=y 278CONFIG_MIGRATION=y
152CONFIG_RESOURCES_64BIT=y 279CONFIG_RESOURCES_64BIT=y
153CONFIG_ZONE_DMA_FLAG=1 280CONFIG_ZONE_DMA_FLAG=1
154CONFIG_BOUNCE=y 281CONFIG_BOUNCE=y
155CONFIG_VIRT_TO_BUS=y 282CONFIG_VIRT_TO_BUS=y
156CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y 283CONFIG_MTRR=y
157CONFIG_OUT_OF_LINE_PFN_TO_PAGE=y 284# CONFIG_X86_PAT is not set
158CONFIG_NR_CPUS=32 285CONFIG_EFI=y
159CONFIG_PHYSICAL_ALIGN=0x200000
160CONFIG_HOTPLUG_CPU=y
161CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
162CONFIG_HPET_TIMER=y
163CONFIG_HPET_EMULATE_RTC=y
164CONFIG_GART_IOMMU=y
165# CONFIG_CALGARY_IOMMU is not set
166CONFIG_SWIOTLB=y
167CONFIG_X86_MCE=y
168CONFIG_X86_MCE_INTEL=y
169CONFIG_X86_MCE_AMD=y
170# CONFIG_KEXEC is not set
171# CONFIG_CRASH_DUMP is not set
172# CONFIG_RELOCATABLE is not set
173CONFIG_PHYSICAL_START=0x200000
174CONFIG_SECCOMP=y 286CONFIG_SECCOMP=y
175# CONFIG_CC_STACKPROTECTOR is not set
176# CONFIG_HZ_100 is not set 287# CONFIG_HZ_100 is not set
177CONFIG_HZ_250=y 288# CONFIG_HZ_250 is not set
178# CONFIG_HZ_300 is not set 289# CONFIG_HZ_300 is not set
179# CONFIG_HZ_1000 is not set 290CONFIG_HZ_1000=y
180CONFIG_HZ=250 291CONFIG_HZ=1000
181CONFIG_K8_NB=y 292CONFIG_SCHED_HRTICK=y
182CONFIG_GENERIC_HARDIRQS=y 293CONFIG_KEXEC=y
183CONFIG_GENERIC_IRQ_PROBE=y 294CONFIG_CRASH_DUMP=y
184CONFIG_ISA_DMA_API=y 295CONFIG_PHYSICAL_START=0x1000000
185CONFIG_GENERIC_PENDING_IRQ=y 296CONFIG_RELOCATABLE=y
297CONFIG_PHYSICAL_ALIGN=0x200000
298CONFIG_HOTPLUG_CPU=y
299# CONFIG_COMPAT_VDSO is not set
300CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
301CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
186 302
187# 303#
188# Power management options 304# Power management options
189# 305#
306CONFIG_ARCH_HIBERNATION_HEADER=y
190CONFIG_PM=y 307CONFIG_PM=y
191# CONFIG_PM_LEGACY is not set 308CONFIG_PM_DEBUG=y
192# CONFIG_PM_DEBUG is not set 309# CONFIG_PM_VERBOSE is not set
310CONFIG_CAN_PM_TRACE=y
311CONFIG_PM_TRACE=y
312CONFIG_PM_TRACE_RTC=y
313CONFIG_PM_SLEEP_SMP=y
314CONFIG_PM_SLEEP=y
315CONFIG_SUSPEND=y
316CONFIG_SUSPEND_FREEZER=y
193CONFIG_HIBERNATION=y 317CONFIG_HIBERNATION=y
194CONFIG_PM_STD_PARTITION="" 318CONFIG_PM_STD_PARTITION=""
195
196#
197# ACPI (Advanced Configuration and Power Interface) Support
198#
199CONFIG_ACPI=y 319CONFIG_ACPI=y
200CONFIG_ACPI_SLEEP=y 320CONFIG_ACPI_SLEEP=y
201CONFIG_ACPI_SLEEP_PROC_FS=y
202CONFIG_ACPI_SLEEP_PROC_SLEEP=y
203CONFIG_ACPI_PROCFS=y 321CONFIG_ACPI_PROCFS=y
322CONFIG_ACPI_PROCFS_POWER=y
323CONFIG_ACPI_SYSFS_POWER=y
324CONFIG_ACPI_PROC_EVENT=y
204CONFIG_ACPI_AC=y 325CONFIG_ACPI_AC=y
205CONFIG_ACPI_BATTERY=y 326CONFIG_ACPI_BATTERY=y
206CONFIG_ACPI_BUTTON=y 327CONFIG_ACPI_BUTTON=y
207CONFIG_ACPI_FAN=y 328CONFIG_ACPI_FAN=y
208# CONFIG_ACPI_DOCK is not set 329CONFIG_ACPI_DOCK=y
330# CONFIG_ACPI_BAY is not set
209CONFIG_ACPI_PROCESSOR=y 331CONFIG_ACPI_PROCESSOR=y
210CONFIG_ACPI_HOTPLUG_CPU=y 332CONFIG_ACPI_HOTPLUG_CPU=y
211CONFIG_ACPI_THERMAL=y 333CONFIG_ACPI_THERMAL=y
212CONFIG_ACPI_NUMA=y 334CONFIG_ACPI_NUMA=y
335# CONFIG_ACPI_WMI is not set
213# CONFIG_ACPI_ASUS is not set 336# CONFIG_ACPI_ASUS is not set
214# CONFIG_ACPI_TOSHIBA is not set 337# CONFIG_ACPI_TOSHIBA is not set
338# CONFIG_ACPI_CUSTOM_DSDT is not set
215CONFIG_ACPI_BLACKLIST_YEAR=0 339CONFIG_ACPI_BLACKLIST_YEAR=0
216# CONFIG_ACPI_DEBUG is not set 340# CONFIG_ACPI_DEBUG is not set
217CONFIG_ACPI_EC=y 341CONFIG_ACPI_EC=y
@@ -227,29 +351,34 @@ CONFIG_ACPI_CONTAINER=y
227CONFIG_CPU_FREQ=y 351CONFIG_CPU_FREQ=y
228CONFIG_CPU_FREQ_TABLE=y 352CONFIG_CPU_FREQ_TABLE=y
229CONFIG_CPU_FREQ_DEBUG=y 353CONFIG_CPU_FREQ_DEBUG=y
230CONFIG_CPU_FREQ_STAT=y 354# CONFIG_CPU_FREQ_STAT is not set
231# CONFIG_CPU_FREQ_STAT_DETAILS is not set 355# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
232CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y 356# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
233# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set 357CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
358# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
359# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
234CONFIG_CPU_FREQ_GOV_PERFORMANCE=y 360CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
235# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set 361# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
236CONFIG_CPU_FREQ_GOV_USERSPACE=y 362CONFIG_CPU_FREQ_GOV_USERSPACE=y
237CONFIG_CPU_FREQ_GOV_ONDEMAND=y 363CONFIG_CPU_FREQ_GOV_ONDEMAND=y
238CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y 364# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
239 365
240# 366#
241# CPUFreq processor drivers 367# CPUFreq processor drivers
242# 368#
243CONFIG_X86_POWERNOW_K8=y
244CONFIG_X86_POWERNOW_K8_ACPI=y
245# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
246CONFIG_X86_ACPI_CPUFREQ=y 369CONFIG_X86_ACPI_CPUFREQ=y
370# CONFIG_X86_POWERNOW_K8 is not set
371# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
372# CONFIG_X86_P4_CLOCKMOD is not set
247 373
248# 374#
249# shared options 375# shared options
250# 376#
251CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y 377# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
252# CONFIG_X86_SPEEDSTEP_LIB is not set 378# CONFIG_X86_SPEEDSTEP_LIB is not set
379CONFIG_CPU_IDLE=y
380CONFIG_CPU_IDLE_GOV_LADDER=y
381CONFIG_CPU_IDLE_GOV_MENU=y
253 382
254# 383#
255# Bus options (PCI etc.) 384# Bus options (PCI etc.)
@@ -257,27 +386,56 @@ CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y
257CONFIG_PCI=y 386CONFIG_PCI=y
258CONFIG_PCI_DIRECT=y 387CONFIG_PCI_DIRECT=y
259CONFIG_PCI_MMCONFIG=y 388CONFIG_PCI_MMCONFIG=y
389CONFIG_PCI_DOMAINS=y
390CONFIG_DMAR=y
391CONFIG_DMAR_GFX_WA=y
392CONFIG_DMAR_FLOPPY_WA=y
260CONFIG_PCIEPORTBUS=y 393CONFIG_PCIEPORTBUS=y
394# CONFIG_HOTPLUG_PCI_PCIE is not set
261CONFIG_PCIEAER=y 395CONFIG_PCIEAER=y
396# CONFIG_PCIEASPM is not set
262CONFIG_ARCH_SUPPORTS_MSI=y 397CONFIG_ARCH_SUPPORTS_MSI=y
263CONFIG_PCI_MSI=y 398CONFIG_PCI_MSI=y
399# CONFIG_PCI_LEGACY is not set
264# CONFIG_PCI_DEBUG is not set 400# CONFIG_PCI_DEBUG is not set
265# CONFIG_HT_IRQ is not set 401CONFIG_HT_IRQ=y
266 402CONFIG_ISA_DMA_API=y
267# 403CONFIG_K8_NB=y
268# PCCARD (PCMCIA/CardBus) support 404CONFIG_PCCARD=y
269# 405# CONFIG_PCMCIA_DEBUG is not set
270# CONFIG_PCCARD is not set 406CONFIG_PCMCIA=y
271# CONFIG_HOTPLUG_PCI is not set 407CONFIG_PCMCIA_LOAD_CIS=y
408CONFIG_PCMCIA_IOCTL=y
409CONFIG_CARDBUS=y
410
411#
412# PC-card bridges
413#
414CONFIG_YENTA=y
415CONFIG_YENTA_O2=y
416CONFIG_YENTA_RICOH=y
417CONFIG_YENTA_TI=y
418CONFIG_YENTA_ENE_TUNE=y
419CONFIG_YENTA_TOSHIBA=y
420# CONFIG_PD6729 is not set
421# CONFIG_I82092 is not set
422CONFIG_PCCARD_NONSTATIC=y
423CONFIG_HOTPLUG_PCI=y
424# CONFIG_HOTPLUG_PCI_FAKE is not set
425# CONFIG_HOTPLUG_PCI_ACPI is not set
426# CONFIG_HOTPLUG_PCI_CPCI is not set
427# CONFIG_HOTPLUG_PCI_SHPC is not set
272 428
273# 429#
274# Executable file formats / Emulations 430# Executable file formats / Emulations
275# 431#
276CONFIG_BINFMT_ELF=y 432CONFIG_BINFMT_ELF=y
277# CONFIG_BINFMT_MISC is not set 433CONFIG_COMPAT_BINFMT_ELF=y
434CONFIG_BINFMT_MISC=y
278CONFIG_IA32_EMULATION=y 435CONFIG_IA32_EMULATION=y
279CONFIG_IA32_AOUT=y 436# CONFIG_IA32_AOUT is not set
280CONFIG_COMPAT=y 437CONFIG_COMPAT=y
438CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
281CONFIG_SYSVIPC_COMPAT=y 439CONFIG_SYSVIPC_COMPAT=y
282 440
283# 441#
@@ -289,22 +447,31 @@ CONFIG_NET=y
289# Networking options 447# Networking options
290# 448#
291CONFIG_PACKET=y 449CONFIG_PACKET=y
292# CONFIG_PACKET_MMAP is not set 450CONFIG_PACKET_MMAP=y
293CONFIG_UNIX=y 451CONFIG_UNIX=y
452CONFIG_XFRM=y
453CONFIG_XFRM_USER=y
454# CONFIG_XFRM_SUB_POLICY is not set
455# CONFIG_XFRM_MIGRATE is not set
456# CONFIG_XFRM_STATISTICS is not set
294# CONFIG_NET_KEY is not set 457# CONFIG_NET_KEY is not set
295CONFIG_INET=y 458CONFIG_INET=y
296CONFIG_IP_MULTICAST=y 459CONFIG_IP_MULTICAST=y
297# CONFIG_IP_ADVANCED_ROUTER is not set 460CONFIG_IP_ADVANCED_ROUTER=y
461CONFIG_ASK_IP_FIB_HASH=y
462# CONFIG_IP_FIB_TRIE is not set
298CONFIG_IP_FIB_HASH=y 463CONFIG_IP_FIB_HASH=y
299CONFIG_IP_PNP=y 464CONFIG_IP_MULTIPLE_TABLES=y
300CONFIG_IP_PNP_DHCP=y 465CONFIG_IP_ROUTE_MULTIPATH=y
301# CONFIG_IP_PNP_BOOTP is not set 466CONFIG_IP_ROUTE_VERBOSE=y
302# CONFIG_IP_PNP_RARP is not set 467# CONFIG_IP_PNP is not set
303# CONFIG_NET_IPIP is not set 468# CONFIG_NET_IPIP is not set
304# CONFIG_NET_IPGRE is not set 469# CONFIG_NET_IPGRE is not set
305# CONFIG_IP_MROUTE is not set 470CONFIG_IP_MROUTE=y
471CONFIG_IP_PIMSM_V1=y
472CONFIG_IP_PIMSM_V2=y
306# CONFIG_ARPD is not set 473# CONFIG_ARPD is not set
307# CONFIG_SYN_COOKIES is not set 474CONFIG_SYN_COOKIES=y
308# CONFIG_INET_AH is not set 475# CONFIG_INET_AH is not set
309# CONFIG_INET_ESP is not set 476# CONFIG_INET_ESP is not set
310# CONFIG_INET_IPCOMP is not set 477# CONFIG_INET_IPCOMP is not set
@@ -313,31 +480,109 @@ CONFIG_INET_TUNNEL=y
313# CONFIG_INET_XFRM_MODE_TRANSPORT is not set 480# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
314# CONFIG_INET_XFRM_MODE_TUNNEL is not set 481# CONFIG_INET_XFRM_MODE_TUNNEL is not set
315# CONFIG_INET_XFRM_MODE_BEET is not set 482# CONFIG_INET_XFRM_MODE_BEET is not set
316CONFIG_INET_DIAG=y 483CONFIG_INET_LRO=y
317CONFIG_INET_TCP_DIAG=y 484# CONFIG_INET_DIAG is not set
318# CONFIG_TCP_CONG_ADVANCED is not set 485CONFIG_TCP_CONG_ADVANCED=y
486# CONFIG_TCP_CONG_BIC is not set
319CONFIG_TCP_CONG_CUBIC=y 487CONFIG_TCP_CONG_CUBIC=y
488# CONFIG_TCP_CONG_WESTWOOD is not set
489# CONFIG_TCP_CONG_HTCP is not set
490# CONFIG_TCP_CONG_HSTCP is not set
491# CONFIG_TCP_CONG_HYBLA is not set
492# CONFIG_TCP_CONG_VEGAS is not set
493# CONFIG_TCP_CONG_SCALABLE is not set
494# CONFIG_TCP_CONG_LP is not set
495# CONFIG_TCP_CONG_VENO is not set
496# CONFIG_TCP_CONG_YEAH is not set
497# CONFIG_TCP_CONG_ILLINOIS is not set
498# CONFIG_DEFAULT_BIC is not set
499CONFIG_DEFAULT_CUBIC=y
500# CONFIG_DEFAULT_HTCP is not set
501# CONFIG_DEFAULT_VEGAS is not set
502# CONFIG_DEFAULT_WESTWOOD is not set
503# CONFIG_DEFAULT_RENO is not set
320CONFIG_DEFAULT_TCP_CONG="cubic" 504CONFIG_DEFAULT_TCP_CONG="cubic"
321# CONFIG_TCP_MD5SIG is not set 505CONFIG_TCP_MD5SIG=y
506# CONFIG_IP_VS is not set
322CONFIG_IPV6=y 507CONFIG_IPV6=y
323# CONFIG_IPV6_PRIVACY is not set 508# CONFIG_IPV6_PRIVACY is not set
324# CONFIG_IPV6_ROUTER_PREF is not set 509# CONFIG_IPV6_ROUTER_PREF is not set
325# CONFIG_IPV6_OPTIMISTIC_DAD is not set 510# CONFIG_IPV6_OPTIMISTIC_DAD is not set
326# CONFIG_INET6_AH is not set 511CONFIG_INET6_AH=y
327# CONFIG_INET6_ESP is not set 512CONFIG_INET6_ESP=y
328# CONFIG_INET6_IPCOMP is not set 513# CONFIG_INET6_IPCOMP is not set
329# CONFIG_IPV6_MIP6 is not set 514# CONFIG_IPV6_MIP6 is not set
330# CONFIG_INET6_XFRM_TUNNEL is not set 515# CONFIG_INET6_XFRM_TUNNEL is not set
331# CONFIG_INET6_TUNNEL is not set 516# CONFIG_INET6_TUNNEL is not set
332# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set 517CONFIG_INET6_XFRM_MODE_TRANSPORT=y
333# CONFIG_INET6_XFRM_MODE_TUNNEL is not set 518CONFIG_INET6_XFRM_MODE_TUNNEL=y
334# CONFIG_INET6_XFRM_MODE_BEET is not set 519CONFIG_INET6_XFRM_MODE_BEET=y
335# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set 520# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
336CONFIG_IPV6_SIT=y 521CONFIG_IPV6_SIT=y
522CONFIG_IPV6_NDISC_NODETYPE=y
337# CONFIG_IPV6_TUNNEL is not set 523# CONFIG_IPV6_TUNNEL is not set
338# CONFIG_IPV6_MULTIPLE_TABLES is not set 524# CONFIG_IPV6_MULTIPLE_TABLES is not set
339# CONFIG_NETWORK_SECMARK is not set 525# CONFIG_IPV6_MROUTE is not set
340# CONFIG_NETFILTER is not set 526CONFIG_NETLABEL=y
527CONFIG_NETWORK_SECMARK=y
528CONFIG_NETFILTER=y
529# CONFIG_NETFILTER_DEBUG is not set
530# CONFIG_NETFILTER_ADVANCED is not set
531
532#
533# Core Netfilter Configuration
534#
535CONFIG_NETFILTER_NETLINK=y
536CONFIG_NETFILTER_NETLINK_LOG=y
537CONFIG_NF_CONNTRACK=y
538CONFIG_NF_CONNTRACK_SECMARK=y
539CONFIG_NF_CONNTRACK_FTP=y
540CONFIG_NF_CONNTRACK_IRC=y
541CONFIG_NF_CONNTRACK_SIP=y
542CONFIG_NF_CT_NETLINK=y
543CONFIG_NETFILTER_XTABLES=y
544CONFIG_NETFILTER_XT_TARGET_MARK=y
545CONFIG_NETFILTER_XT_TARGET_NFLOG=y
546CONFIG_NETFILTER_XT_TARGET_SECMARK=y
547CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
548CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
549CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
550CONFIG_NETFILTER_XT_MATCH_MARK=y
551CONFIG_NETFILTER_XT_MATCH_POLICY=y
552CONFIG_NETFILTER_XT_MATCH_STATE=y
553
554#
555# IP: Netfilter Configuration
556#
557CONFIG_NF_CONNTRACK_IPV4=y
558CONFIG_NF_CONNTRACK_PROC_COMPAT=y
559CONFIG_IP_NF_IPTABLES=y
560CONFIG_IP_NF_FILTER=y
561CONFIG_IP_NF_TARGET_REJECT=y
562CONFIG_IP_NF_TARGET_LOG=y
563CONFIG_IP_NF_TARGET_ULOG=y
564CONFIG_NF_NAT=y
565CONFIG_NF_NAT_NEEDED=y
566CONFIG_IP_NF_TARGET_MASQUERADE=y
567CONFIG_NF_NAT_FTP=y
568CONFIG_NF_NAT_IRC=y
569# CONFIG_NF_NAT_TFTP is not set
570# CONFIG_NF_NAT_AMANDA is not set
571# CONFIG_NF_NAT_PPTP is not set
572# CONFIG_NF_NAT_H323 is not set
573CONFIG_NF_NAT_SIP=y
574CONFIG_IP_NF_MANGLE=y
575
576#
577# IPv6: Netfilter Configuration
578#
579CONFIG_NF_CONNTRACK_IPV6=y
580CONFIG_IP6_NF_IPTABLES=y
581CONFIG_IP6_NF_MATCH_IPV6HEADER=y
582CONFIG_IP6_NF_FILTER=y
583CONFIG_IP6_NF_TARGET_LOG=y
584CONFIG_IP6_NF_TARGET_REJECT=y
585CONFIG_IP6_NF_MANGLE=y
341# CONFIG_IP_DCCP is not set 586# CONFIG_IP_DCCP is not set
342# CONFIG_IP_SCTP is not set 587# CONFIG_IP_SCTP is not set
343# CONFIG_TIPC is not set 588# CONFIG_TIPC is not set
@@ -345,6 +590,7 @@ CONFIG_IPV6_SIT=y
345# CONFIG_BRIDGE is not set 590# CONFIG_BRIDGE is not set
346# CONFIG_VLAN_8021Q is not set 591# CONFIG_VLAN_8021Q is not set
347# CONFIG_DECNET is not set 592# CONFIG_DECNET is not set
593CONFIG_LLC=y
348# CONFIG_LLC2 is not set 594# CONFIG_LLC2 is not set
349# CONFIG_IPX is not set 595# CONFIG_IPX is not set
350# CONFIG_ATALK is not set 596# CONFIG_ATALK is not set
@@ -352,28 +598,99 @@ CONFIG_IPV6_SIT=y
352# CONFIG_LAPB is not set 598# CONFIG_LAPB is not set
353# CONFIG_ECONET is not set 599# CONFIG_ECONET is not set
354# CONFIG_WAN_ROUTER is not set 600# CONFIG_WAN_ROUTER is not set
355 601CONFIG_NET_SCHED=y
356# 602
357# QoS and/or fair queueing 603#
358# 604# Queueing/Scheduling
359# CONFIG_NET_SCHED is not set 605#
606# CONFIG_NET_SCH_CBQ is not set
607# CONFIG_NET_SCH_HTB is not set
608# CONFIG_NET_SCH_HFSC is not set
609# CONFIG_NET_SCH_PRIO is not set
610# CONFIG_NET_SCH_RR is not set
611# CONFIG_NET_SCH_RED is not set
612# CONFIG_NET_SCH_SFQ is not set
613# CONFIG_NET_SCH_TEQL is not set
614# CONFIG_NET_SCH_TBF is not set
615# CONFIG_NET_SCH_GRED is not set
616# CONFIG_NET_SCH_DSMARK is not set
617# CONFIG_NET_SCH_NETEM is not set
618# CONFIG_NET_SCH_INGRESS is not set
619
620#
621# Classification
622#
623CONFIG_NET_CLS=y
624# CONFIG_NET_CLS_BASIC is not set
625# CONFIG_NET_CLS_TCINDEX is not set
626# CONFIG_NET_CLS_ROUTE4 is not set
627# CONFIG_NET_CLS_FW is not set
628# CONFIG_NET_CLS_U32 is not set
629# CONFIG_NET_CLS_RSVP is not set
630# CONFIG_NET_CLS_RSVP6 is not set
631# CONFIG_NET_CLS_FLOW is not set
632CONFIG_NET_EMATCH=y
633CONFIG_NET_EMATCH_STACK=32
634# CONFIG_NET_EMATCH_CMP is not set
635# CONFIG_NET_EMATCH_NBYTE is not set
636# CONFIG_NET_EMATCH_U32 is not set
637# CONFIG_NET_EMATCH_META is not set
638# CONFIG_NET_EMATCH_TEXT is not set
639CONFIG_NET_CLS_ACT=y
640# CONFIG_NET_ACT_POLICE is not set
641# CONFIG_NET_ACT_GACT is not set
642# CONFIG_NET_ACT_MIRRED is not set
643# CONFIG_NET_ACT_IPT is not set
644# CONFIG_NET_ACT_NAT is not set
645# CONFIG_NET_ACT_PEDIT is not set
646# CONFIG_NET_ACT_SIMP is not set
647CONFIG_NET_SCH_FIFO=y
360 648
361# 649#
362# Network testing 650# Network testing
363# 651#
364# CONFIG_NET_PKTGEN is not set 652# CONFIG_NET_PKTGEN is not set
365# CONFIG_NET_TCPPROBE is not set 653# CONFIG_NET_TCPPROBE is not set
366# CONFIG_HAMRADIO is not set 654CONFIG_HAMRADIO=y
655
656#
657# Packet Radio protocols
658#
659# CONFIG_AX25 is not set
660# CONFIG_CAN is not set
367# CONFIG_IRDA is not set 661# CONFIG_IRDA is not set
368# CONFIG_BT is not set 662# CONFIG_BT is not set
369# CONFIG_AF_RXRPC is not set 663# CONFIG_AF_RXRPC is not set
664CONFIG_FIB_RULES=y
370 665
371# 666#
372# Wireless 667# Wireless
373# 668#
374# CONFIG_CFG80211 is not set 669CONFIG_CFG80211=y
375# CONFIG_WIRELESS_EXT is not set 670CONFIG_NL80211=y
376# CONFIG_MAC80211 is not set 671CONFIG_WIRELESS_EXT=y
672CONFIG_MAC80211=y
673
674#
675# Rate control algorithm selection
676#
677CONFIG_MAC80211_RC_DEFAULT_PID=y
678# CONFIG_MAC80211_RC_DEFAULT_NONE is not set
679
680#
681# Selecting 'y' for an algorithm will
682#
683
684#
685# build the algorithm into mac80211.
686#
687CONFIG_MAC80211_RC_DEFAULT="pid"
688CONFIG_MAC80211_RC_PID=y
689# CONFIG_MAC80211_MESH is not set
690CONFIG_MAC80211_LEDS=y
691# CONFIG_MAC80211_DEBUGFS is not set
692# CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT is not set
693# CONFIG_MAC80211_DEBUG is not set
377# CONFIG_IEEE80211 is not set 694# CONFIG_IEEE80211 is not set
378# CONFIG_RFKILL is not set 695# CONFIG_RFKILL is not set
379# CONFIG_NET_9P is not set 696# CONFIG_NET_9P is not set
@@ -385,13 +702,15 @@ CONFIG_IPV6_SIT=y
385# 702#
386# Generic Driver Options 703# Generic Driver Options
387# 704#
705CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
388CONFIG_STANDALONE=y 706CONFIG_STANDALONE=y
389CONFIG_PREVENT_FIRMWARE_BUILD=y 707CONFIG_PREVENT_FIRMWARE_BUILD=y
390CONFIG_FW_LOADER=y 708CONFIG_FW_LOADER=y
391# CONFIG_DEBUG_DRIVER is not set 709# CONFIG_DEBUG_DRIVER is not set
392# CONFIG_DEBUG_DEVRES is not set 710CONFIG_DEBUG_DEVRES=y
393# CONFIG_SYS_HYPERVISOR is not set 711# CONFIG_SYS_HYPERVISOR is not set
394# CONFIG_CONNECTOR is not set 712CONFIG_CONNECTOR=y
713CONFIG_PROC_EVENTS=y
395# CONFIG_MTD is not set 714# CONFIG_MTD is not set
396# CONFIG_PARPORT is not set 715# CONFIG_PARPORT is not set
397CONFIG_PNP=y 716CONFIG_PNP=y
@@ -402,7 +721,7 @@ CONFIG_PNP=y
402# 721#
403CONFIG_PNPACPI=y 722CONFIG_PNPACPI=y
404CONFIG_BLK_DEV=y 723CONFIG_BLK_DEV=y
405CONFIG_BLK_DEV_FD=y 724# CONFIG_BLK_DEV_FD is not set
406# CONFIG_BLK_CPQ_DA is not set 725# CONFIG_BLK_CPQ_DA is not set
407# CONFIG_BLK_CPQ_CISS_DA is not set 726# CONFIG_BLK_CPQ_CISS_DA is not set
408# CONFIG_BLK_DEV_DAC960 is not set 727# CONFIG_BLK_DEV_DAC960 is not set
@@ -415,8 +734,8 @@ CONFIG_BLK_DEV_LOOP=y
415# CONFIG_BLK_DEV_UB is not set 734# CONFIG_BLK_DEV_UB is not set
416CONFIG_BLK_DEV_RAM=y 735CONFIG_BLK_DEV_RAM=y
417CONFIG_BLK_DEV_RAM_COUNT=16 736CONFIG_BLK_DEV_RAM_COUNT=16
418CONFIG_BLK_DEV_RAM_SIZE=4096 737CONFIG_BLK_DEV_RAM_SIZE=16384
419CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 738# CONFIG_BLK_DEV_XIP is not set
420# CONFIG_CDROM_PKTCDVD is not set 739# CONFIG_CDROM_PKTCDVD is not set
421# CONFIG_ATA_OVER_ETH is not set 740# CONFIG_ATA_OVER_ETH is not set
422CONFIG_MISC_DEVICES=y 741CONFIG_MISC_DEVICES=y
@@ -425,72 +744,16 @@ CONFIG_MISC_DEVICES=y
425# CONFIG_EEPROM_93CX6 is not set 744# CONFIG_EEPROM_93CX6 is not set
426# CONFIG_SGI_IOC4 is not set 745# CONFIG_SGI_IOC4 is not set
427# CONFIG_TIFM_CORE is not set 746# CONFIG_TIFM_CORE is not set
747# CONFIG_ACER_WMI is not set
748# CONFIG_ASUS_LAPTOP is not set
749# CONFIG_FUJITSU_LAPTOP is not set
750# CONFIG_MSI_LAPTOP is not set
428# CONFIG_SONY_LAPTOP is not set 751# CONFIG_SONY_LAPTOP is not set
429# CONFIG_THINKPAD_ACPI is not set 752# CONFIG_THINKPAD_ACPI is not set
430CONFIG_IDE=y 753# CONFIG_INTEL_MENLOW is not set
431CONFIG_BLK_DEV_IDE=y 754# CONFIG_ENCLOSURE_SERVICES is not set
432 755CONFIG_HAVE_IDE=y
433# 756# CONFIG_IDE is not set
434# Please see Documentation/ide.txt for help/info on IDE drives
435#
436# CONFIG_BLK_DEV_IDE_SATA is not set
437# CONFIG_BLK_DEV_HD_IDE is not set
438CONFIG_BLK_DEV_IDEDISK=y
439CONFIG_IDEDISK_MULTI_MODE=y
440CONFIG_BLK_DEV_IDECD=y
441# CONFIG_BLK_DEV_IDETAPE is not set
442# CONFIG_BLK_DEV_IDEFLOPPY is not set
443# CONFIG_BLK_DEV_IDESCSI is not set
444CONFIG_BLK_DEV_IDEACPI=y
445# CONFIG_IDE_TASK_IOCTL is not set
446CONFIG_IDE_PROC_FS=y
447
448#
449# IDE chipset support/bugfixes
450#
451CONFIG_IDE_GENERIC=y
452# CONFIG_BLK_DEV_CMD640 is not set
453# CONFIG_BLK_DEV_IDEPNP is not set
454CONFIG_BLK_DEV_IDEPCI=y
455# CONFIG_IDEPCI_SHARE_IRQ is not set
456CONFIG_IDEPCI_PCIBUS_ORDER=y
457# CONFIG_BLK_DEV_OFFBOARD is not set
458# CONFIG_BLK_DEV_GENERIC is not set
459# CONFIG_BLK_DEV_OPTI621 is not set
460# CONFIG_BLK_DEV_RZ1000 is not set
461CONFIG_BLK_DEV_IDEDMA_PCI=y
462# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
463# CONFIG_IDEDMA_ONLYDISK is not set
464# CONFIG_BLK_DEV_AEC62XX is not set
465# CONFIG_BLK_DEV_ALI15X3 is not set
466CONFIG_BLK_DEV_AMD74XX=y
467CONFIG_BLK_DEV_ATIIXP=y
468# CONFIG_BLK_DEV_CMD64X is not set
469# CONFIG_BLK_DEV_TRIFLEX is not set
470# CONFIG_BLK_DEV_CY82C693 is not set
471# CONFIG_BLK_DEV_CS5520 is not set
472# CONFIG_BLK_DEV_CS5530 is not set
473# CONFIG_BLK_DEV_HPT34X is not set
474# CONFIG_BLK_DEV_HPT366 is not set
475# CONFIG_BLK_DEV_JMICRON is not set
476# CONFIG_BLK_DEV_SC1200 is not set
477CONFIG_BLK_DEV_PIIX=y
478# CONFIG_BLK_DEV_IT8213 is not set
479# CONFIG_BLK_DEV_IT821X is not set
480# CONFIG_BLK_DEV_NS87415 is not set
481# CONFIG_BLK_DEV_PDC202XX_OLD is not set
482CONFIG_BLK_DEV_PDC202XX_NEW=y
483# CONFIG_BLK_DEV_SVWKS is not set
484# CONFIG_BLK_DEV_SIIMAGE is not set
485# CONFIG_BLK_DEV_SIS5513 is not set
486# CONFIG_BLK_DEV_SLC90E66 is not set
487# CONFIG_BLK_DEV_TRM290 is not set
488# CONFIG_BLK_DEV_VIA82CXXX is not set
489# CONFIG_BLK_DEV_TC86C001 is not set
490# CONFIG_IDE_ARM is not set
491CONFIG_BLK_DEV_IDEDMA=y
492# CONFIG_IDEDMA_IVB is not set
493# CONFIG_BLK_DEV_HD is not set
494 757
495# 758#
496# SCSI device support 759# SCSI device support
@@ -499,8 +762,8 @@ CONFIG_BLK_DEV_IDEDMA=y
499CONFIG_SCSI=y 762CONFIG_SCSI=y
500CONFIG_SCSI_DMA=y 763CONFIG_SCSI_DMA=y
501# CONFIG_SCSI_TGT is not set 764# CONFIG_SCSI_TGT is not set
502CONFIG_SCSI_NETLINK=y 765# CONFIG_SCSI_NETLINK is not set
503# CONFIG_SCSI_PROC_FS is not set 766CONFIG_SCSI_PROC_FS=y
504 767
505# 768#
506# SCSI support type (disk, tape, CD-ROM) 769# SCSI support type (disk, tape, CD-ROM)
@@ -509,7 +772,7 @@ CONFIG_BLK_DEV_SD=y
509# CONFIG_CHR_DEV_ST is not set 772# CONFIG_CHR_DEV_ST is not set
510# CONFIG_CHR_DEV_OSST is not set 773# CONFIG_CHR_DEV_OSST is not set
511CONFIG_BLK_DEV_SR=y 774CONFIG_BLK_DEV_SR=y
512# CONFIG_BLK_DEV_SR_VENDOR is not set 775CONFIG_BLK_DEV_SR_VENDOR=y
513CONFIG_CHR_DEV_SG=y 776CONFIG_CHR_DEV_SG=y
514# CONFIG_CHR_DEV_SCH is not set 777# CONFIG_CHR_DEV_SCH is not set
515 778
@@ -526,73 +789,37 @@ CONFIG_SCSI_WAIT_SCAN=m
526# SCSI Transports 789# SCSI Transports
527# 790#
528CONFIG_SCSI_SPI_ATTRS=y 791CONFIG_SCSI_SPI_ATTRS=y
529CONFIG_SCSI_FC_ATTRS=y 792# CONFIG_SCSI_FC_ATTRS is not set
530# CONFIG_SCSI_ISCSI_ATTRS is not set 793# CONFIG_SCSI_ISCSI_ATTRS is not set
531CONFIG_SCSI_SAS_ATTRS=y 794# CONFIG_SCSI_SAS_ATTRS is not set
532# CONFIG_SCSI_SAS_LIBSAS is not set 795# CONFIG_SCSI_SAS_LIBSAS is not set
533 796# CONFIG_SCSI_SRP_ATTRS is not set
534# 797# CONFIG_SCSI_LOWLEVEL is not set
535# SCSI low-level drivers 798# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
536#
537# CONFIG_ISCSI_TCP is not set
538# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
539# CONFIG_SCSI_3W_9XXX is not set
540# CONFIG_SCSI_ACARD is not set
541# CONFIG_SCSI_AACRAID is not set
542# CONFIG_SCSI_AIC7XXX is not set
543# CONFIG_SCSI_AIC7XXX_OLD is not set
544CONFIG_SCSI_AIC79XX=y
545CONFIG_AIC79XX_CMDS_PER_DEVICE=32
546CONFIG_AIC79XX_RESET_DELAY_MS=4000
547# CONFIG_AIC79XX_DEBUG_ENABLE is not set
548CONFIG_AIC79XX_DEBUG_MASK=0
549# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set
550# CONFIG_SCSI_AIC94XX is not set
551# CONFIG_SCSI_ARCMSR is not set
552# CONFIG_MEGARAID_NEWGEN is not set
553# CONFIG_MEGARAID_LEGACY is not set
554# CONFIG_MEGARAID_SAS is not set
555# CONFIG_SCSI_HPTIOP is not set
556# CONFIG_SCSI_BUSLOGIC is not set
557# CONFIG_SCSI_DMX3191D is not set
558# CONFIG_SCSI_EATA is not set
559# CONFIG_SCSI_FUTURE_DOMAIN is not set
560# CONFIG_SCSI_GDTH is not set
561# CONFIG_SCSI_IPS is not set
562# CONFIG_SCSI_INITIO is not set
563# CONFIG_SCSI_INIA100 is not set
564# CONFIG_SCSI_STEX is not set
565# CONFIG_SCSI_SYM53C8XX_2 is not set
566# CONFIG_SCSI_IPR is not set
567# CONFIG_SCSI_QLOGIC_1280 is not set
568# CONFIG_SCSI_QLA_FC is not set
569# CONFIG_SCSI_QLA_ISCSI is not set
570# CONFIG_SCSI_LPFC is not set
571# CONFIG_SCSI_DC395x is not set
572# CONFIG_SCSI_DC390T is not set
573# CONFIG_SCSI_DEBUG is not set
574# CONFIG_SCSI_SRP is not set
575CONFIG_ATA=y 799CONFIG_ATA=y
576# CONFIG_ATA_NONSTANDARD is not set 800# CONFIG_ATA_NONSTANDARD is not set
577CONFIG_ATA_ACPI=y 801CONFIG_ATA_ACPI=y
802CONFIG_SATA_PMP=y
578CONFIG_SATA_AHCI=y 803CONFIG_SATA_AHCI=y
579CONFIG_SATA_SVW=y 804# CONFIG_SATA_SIL24 is not set
805CONFIG_ATA_SFF=y
806# CONFIG_SATA_SVW is not set
580CONFIG_ATA_PIIX=y 807CONFIG_ATA_PIIX=y
581# CONFIG_SATA_MV is not set 808# CONFIG_SATA_MV is not set
582CONFIG_SATA_NV=y 809# CONFIG_SATA_NV is not set
583# CONFIG_PDC_ADMA is not set 810# CONFIG_PDC_ADMA is not set
584# CONFIG_SATA_QSTOR is not set 811# CONFIG_SATA_QSTOR is not set
585# CONFIG_SATA_PROMISE is not set 812# CONFIG_SATA_PROMISE is not set
586# CONFIG_SATA_SX4 is not set 813# CONFIG_SATA_SX4 is not set
587CONFIG_SATA_SIL=y 814# CONFIG_SATA_SIL is not set
588# CONFIG_SATA_SIL24 is not set
589# CONFIG_SATA_SIS is not set 815# CONFIG_SATA_SIS is not set
590# CONFIG_SATA_ULI is not set 816# CONFIG_SATA_ULI is not set
591CONFIG_SATA_VIA=y 817# CONFIG_SATA_VIA is not set
592# CONFIG_SATA_VITESSE is not set 818# CONFIG_SATA_VITESSE is not set
593# CONFIG_SATA_INIC162X is not set 819# CONFIG_SATA_INIC162X is not set
820# CONFIG_PATA_ACPI is not set
594# CONFIG_PATA_ALI is not set 821# CONFIG_PATA_ALI is not set
595# CONFIG_PATA_AMD is not set 822CONFIG_PATA_AMD=y
596# CONFIG_PATA_ARTOP is not set 823# CONFIG_PATA_ARTOP is not set
597# CONFIG_PATA_ATIIXP is not set 824# CONFIG_PATA_ATIIXP is not set
598# CONFIG_PATA_CMD640_PCI is not set 825# CONFIG_PATA_CMD640_PCI is not set
@@ -612,11 +839,14 @@ CONFIG_SATA_VIA=y
612# CONFIG_PATA_TRIFLEX is not set 839# CONFIG_PATA_TRIFLEX is not set
613# CONFIG_PATA_MARVELL is not set 840# CONFIG_PATA_MARVELL is not set
614# CONFIG_PATA_MPIIX is not set 841# CONFIG_PATA_MPIIX is not set
615# CONFIG_PATA_OLDPIIX is not set 842CONFIG_PATA_OLDPIIX=y
616# CONFIG_PATA_NETCELL is not set 843# CONFIG_PATA_NETCELL is not set
844# CONFIG_PATA_NINJA32 is not set
617# CONFIG_PATA_NS87410 is not set 845# CONFIG_PATA_NS87410 is not set
846# CONFIG_PATA_NS87415 is not set
618# CONFIG_PATA_OPTI is not set 847# CONFIG_PATA_OPTI is not set
619# CONFIG_PATA_OPTIDMA is not set 848# CONFIG_PATA_OPTIDMA is not set
849# CONFIG_PATA_PCMCIA is not set
620# CONFIG_PATA_PDC_OLD is not set 850# CONFIG_PATA_PDC_OLD is not set
621# CONFIG_PATA_RADISYS is not set 851# CONFIG_PATA_RADISYS is not set
622# CONFIG_PATA_RZ1000 is not set 852# CONFIG_PATA_RZ1000 is not set
@@ -628,65 +858,42 @@ CONFIG_SATA_VIA=y
628# CONFIG_PATA_VIA is not set 858# CONFIG_PATA_VIA is not set
629# CONFIG_PATA_WINBOND is not set 859# CONFIG_PATA_WINBOND is not set
630CONFIG_MD=y 860CONFIG_MD=y
631# CONFIG_BLK_DEV_MD is not set 861CONFIG_BLK_DEV_MD=y
862# CONFIG_MD_LINEAR is not set
863# CONFIG_MD_RAID0 is not set
864# CONFIG_MD_RAID1 is not set
865# CONFIG_MD_RAID10 is not set
866# CONFIG_MD_RAID456 is not set
867# CONFIG_MD_MULTIPATH is not set
868# CONFIG_MD_FAULTY is not set
632CONFIG_BLK_DEV_DM=y 869CONFIG_BLK_DEV_DM=y
633# CONFIG_DM_DEBUG is not set 870# CONFIG_DM_DEBUG is not set
634# CONFIG_DM_CRYPT is not set 871# CONFIG_DM_CRYPT is not set
635# CONFIG_DM_SNAPSHOT is not set 872# CONFIG_DM_SNAPSHOT is not set
636# CONFIG_DM_MIRROR is not set 873CONFIG_DM_MIRROR=y
637# CONFIG_DM_ZERO is not set 874CONFIG_DM_ZERO=y
638# CONFIG_DM_MULTIPATH is not set 875# CONFIG_DM_MULTIPATH is not set
639# CONFIG_DM_DELAY is not set 876# CONFIG_DM_DELAY is not set
640 877# CONFIG_DM_UEVENT is not set
641# 878# CONFIG_FUSION is not set
642# Fusion MPT device support
643#
644CONFIG_FUSION=y
645CONFIG_FUSION_SPI=y
646# CONFIG_FUSION_FC is not set
647# CONFIG_FUSION_SAS is not set
648CONFIG_FUSION_MAX_SGE=128
649# CONFIG_FUSION_CTL is not set
650 879
651# 880#
652# IEEE 1394 (FireWire) support 881# IEEE 1394 (FireWire) support
653# 882#
654# CONFIG_FIREWIRE is not set 883# CONFIG_FIREWIRE is not set
655CONFIG_IEEE1394=y 884# CONFIG_IEEE1394 is not set
656
657#
658# Subsystem Options
659#
660# CONFIG_IEEE1394_VERBOSEDEBUG is not set
661
662#
663# Controllers
664#
665
666#
667# Texas Instruments PCILynx requires I2C
668#
669CONFIG_IEEE1394_OHCI1394=y
670
671#
672# Protocols
673#
674# CONFIG_IEEE1394_VIDEO1394 is not set
675# CONFIG_IEEE1394_SBP2 is not set
676# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set
677# CONFIG_IEEE1394_ETH1394 is not set
678# CONFIG_IEEE1394_DV1394 is not set
679CONFIG_IEEE1394_RAWIO=y
680# CONFIG_I2O is not set 885# CONFIG_I2O is not set
681CONFIG_MACINTOSH_DRIVERS=y 886CONFIG_MACINTOSH_DRIVERS=y
682# CONFIG_MAC_EMUMOUSEBTN is not set 887CONFIG_MAC_EMUMOUSEBTN=y
683CONFIG_NETDEVICES=y 888CONFIG_NETDEVICES=y
684CONFIG_NETDEVICES_MULTIQUEUE=y 889# CONFIG_NETDEVICES_MULTIQUEUE is not set
890# CONFIG_IFB is not set
685# CONFIG_DUMMY is not set 891# CONFIG_DUMMY is not set
686# CONFIG_BONDING is not set 892# CONFIG_BONDING is not set
687# CONFIG_MACVLAN is not set 893# CONFIG_MACVLAN is not set
688# CONFIG_EQUALIZER is not set 894# CONFIG_EQUALIZER is not set
689CONFIG_TUN=y 895# CONFIG_TUN is not set
896# CONFIG_VETH is not set
690# CONFIG_NET_SB1000 is not set 897# CONFIG_NET_SB1000 is not set
691# CONFIG_ARCNET is not set 898# CONFIG_ARCNET is not set
692# CONFIG_PHYLIB is not set 899# CONFIG_PHYLIB is not set
@@ -696,39 +903,40 @@ CONFIG_MII=y
696# CONFIG_SUNGEM is not set 903# CONFIG_SUNGEM is not set
697# CONFIG_CASSINI is not set 904# CONFIG_CASSINI is not set
698CONFIG_NET_VENDOR_3COM=y 905CONFIG_NET_VENDOR_3COM=y
699CONFIG_VORTEX=y 906# CONFIG_VORTEX is not set
700# CONFIG_TYPHOON is not set 907# CONFIG_TYPHOON is not set
701CONFIG_NET_TULIP=y 908CONFIG_NET_TULIP=y
702# CONFIG_DE2104X is not set 909# CONFIG_DE2104X is not set
703CONFIG_TULIP=y 910# CONFIG_TULIP is not set
704# CONFIG_TULIP_MWI is not set
705# CONFIG_TULIP_MMIO is not set
706# CONFIG_TULIP_NAPI is not set
707# CONFIG_DE4X5 is not set 911# CONFIG_DE4X5 is not set
708# CONFIG_WINBOND_840 is not set 912# CONFIG_WINBOND_840 is not set
709# CONFIG_DM9102 is not set 913# CONFIG_DM9102 is not set
710# CONFIG_ULI526X is not set 914# CONFIG_ULI526X is not set
915# CONFIG_PCMCIA_XIRCOM is not set
711# CONFIG_HP100 is not set 916# CONFIG_HP100 is not set
917# CONFIG_IBM_NEW_EMAC_ZMII is not set
918# CONFIG_IBM_NEW_EMAC_RGMII is not set
919# CONFIG_IBM_NEW_EMAC_TAH is not set
920# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
712CONFIG_NET_PCI=y 921CONFIG_NET_PCI=y
713# CONFIG_PCNET32 is not set 922# CONFIG_PCNET32 is not set
714CONFIG_AMD8111_ETH=y 923# CONFIG_AMD8111_ETH is not set
715# CONFIG_AMD8111E_NAPI is not set
716# CONFIG_ADAPTEC_STARFIRE is not set 924# CONFIG_ADAPTEC_STARFIRE is not set
717CONFIG_B44=y 925# CONFIG_B44 is not set
718CONFIG_FORCEDETH=y 926CONFIG_FORCEDETH=y
719# CONFIG_FORCEDETH_NAPI is not set 927# CONFIG_FORCEDETH_NAPI is not set
720# CONFIG_DGRS is not set
721# CONFIG_EEPRO100 is not set 928# CONFIG_EEPRO100 is not set
722CONFIG_E100=y 929CONFIG_E100=y
723# CONFIG_FEALNX is not set 930# CONFIG_FEALNX is not set
724# CONFIG_NATSEMI is not set 931# CONFIG_NATSEMI is not set
725# CONFIG_NE2K_PCI is not set 932# CONFIG_NE2K_PCI is not set
726CONFIG_8139CP=y 933# CONFIG_8139CP is not set
727CONFIG_8139TOO=y 934CONFIG_8139TOO=y
728# CONFIG_8139TOO_PIO is not set 935CONFIG_8139TOO_PIO=y
729# CONFIG_8139TOO_TUNE_TWISTER is not set 936# CONFIG_8139TOO_TUNE_TWISTER is not set
730# CONFIG_8139TOO_8129 is not set 937# CONFIG_8139TOO_8129 is not set
731# CONFIG_8139_OLD_RX_RESET is not set 938# CONFIG_8139_OLD_RX_RESET is not set
939# CONFIG_R6040 is not set
732# CONFIG_SIS900 is not set 940# CONFIG_SIS900 is not set
733# CONFIG_EPIC100 is not set 941# CONFIG_EPIC100 is not set
734# CONFIG_SUNDANCE is not set 942# CONFIG_SUNDANCE is not set
@@ -740,34 +948,74 @@ CONFIG_NETDEV_1000=y
740CONFIG_E1000=y 948CONFIG_E1000=y
741# CONFIG_E1000_NAPI is not set 949# CONFIG_E1000_NAPI is not set
742# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set 950# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
951# CONFIG_E1000E is not set
952# CONFIG_E1000E_ENABLED is not set
953# CONFIG_IP1000 is not set
954# CONFIG_IGB is not set
743# CONFIG_NS83820 is not set 955# CONFIG_NS83820 is not set
744# CONFIG_HAMACHI is not set 956# CONFIG_HAMACHI is not set
745# CONFIG_YELLOWFIN is not set 957# CONFIG_YELLOWFIN is not set
746# CONFIG_R8169 is not set 958# CONFIG_R8169 is not set
747# CONFIG_SIS190 is not set 959# CONFIG_SIS190 is not set
748# CONFIG_SKGE is not set 960# CONFIG_SKGE is not set
749# CONFIG_SKY2 is not set 961CONFIG_SKY2=y
962# CONFIG_SKY2_DEBUG is not set
750# CONFIG_VIA_VELOCITY is not set 963# CONFIG_VIA_VELOCITY is not set
751CONFIG_TIGON3=y 964CONFIG_TIGON3=y
752CONFIG_BNX2=y 965# CONFIG_BNX2 is not set
753# CONFIG_QLA3XXX is not set 966# CONFIG_QLA3XXX is not set
754# CONFIG_ATL1 is not set 967# CONFIG_ATL1 is not set
755CONFIG_NETDEV_10000=y 968CONFIG_NETDEV_10000=y
756# CONFIG_CHELSIO_T1 is not set 969# CONFIG_CHELSIO_T1 is not set
757# CONFIG_CHELSIO_T3 is not set 970# CONFIG_CHELSIO_T3 is not set
971# CONFIG_IXGBE is not set
758# CONFIG_IXGB is not set 972# CONFIG_IXGB is not set
759CONFIG_S2IO=m 973# CONFIG_S2IO is not set
760# CONFIG_S2IO_NAPI is not set
761# CONFIG_MYRI10GE is not set 974# CONFIG_MYRI10GE is not set
762# CONFIG_NETXEN_NIC is not set 975# CONFIG_NETXEN_NIC is not set
976# CONFIG_NIU is not set
763# CONFIG_MLX4_CORE is not set 977# CONFIG_MLX4_CORE is not set
764# CONFIG_TR is not set 978# CONFIG_TEHUTI is not set
979# CONFIG_BNX2X is not set
980# CONFIG_SFC is not set
981CONFIG_TR=y
982# CONFIG_IBMOL is not set
983# CONFIG_3C359 is not set
984# CONFIG_TMS380TR is not set
765 985
766# 986#
767# Wireless LAN 987# Wireless LAN
768# 988#
769# CONFIG_WLAN_PRE80211 is not set 989# CONFIG_WLAN_PRE80211 is not set
770# CONFIG_WLAN_80211 is not set 990CONFIG_WLAN_80211=y
991# CONFIG_PCMCIA_RAYCS is not set
992# CONFIG_IPW2100 is not set
993# CONFIG_IPW2200 is not set
994# CONFIG_LIBERTAS is not set
995# CONFIG_AIRO is not set
996# CONFIG_HERMES is not set
997# CONFIG_ATMEL is not set
998# CONFIG_AIRO_CS is not set
999# CONFIG_PCMCIA_WL3501 is not set
1000# CONFIG_PRISM54 is not set
1001# CONFIG_USB_ZD1201 is not set
1002# CONFIG_USB_NET_RNDIS_WLAN is not set
1003# CONFIG_RTL8180 is not set
1004# CONFIG_RTL8187 is not set
1005# CONFIG_ADM8211 is not set
1006# CONFIG_P54_COMMON is not set
1007CONFIG_ATH5K=y
1008# CONFIG_ATH5K_DEBUG is not set
1009# CONFIG_IWLWIFI is not set
1010# CONFIG_IWLCORE is not set
1011# CONFIG_IWLWIFI_LEDS is not set
1012# CONFIG_IWL4965 is not set
1013# CONFIG_IWL3945 is not set
1014# CONFIG_HOSTAP is not set
1015# CONFIG_B43 is not set
1016# CONFIG_B43LEGACY is not set
1017# CONFIG_ZD1211RW is not set
1018# CONFIG_RT2X00 is not set
771 1019
772# 1020#
773# USB Network Adapters 1021# USB Network Adapters
@@ -776,16 +1024,26 @@ CONFIG_S2IO=m
776# CONFIG_USB_KAWETH is not set 1024# CONFIG_USB_KAWETH is not set
777# CONFIG_USB_PEGASUS is not set 1025# CONFIG_USB_PEGASUS is not set
778# CONFIG_USB_RTL8150 is not set 1026# CONFIG_USB_RTL8150 is not set
779# CONFIG_USB_USBNET_MII is not set
780# CONFIG_USB_USBNET is not set 1027# CONFIG_USB_USBNET is not set
1028CONFIG_NET_PCMCIA=y
1029# CONFIG_PCMCIA_3C589 is not set
1030# CONFIG_PCMCIA_3C574 is not set
1031# CONFIG_PCMCIA_FMVJ18X is not set
1032# CONFIG_PCMCIA_PCNET is not set
1033# CONFIG_PCMCIA_NMCLAN is not set
1034# CONFIG_PCMCIA_SMC91C92 is not set
1035# CONFIG_PCMCIA_XIRC2PS is not set
1036# CONFIG_PCMCIA_AXNET is not set
781# CONFIG_WAN is not set 1037# CONFIG_WAN is not set
782# CONFIG_FDDI is not set 1038CONFIG_FDDI=y
1039# CONFIG_DEFXX is not set
1040# CONFIG_SKFP is not set
783# CONFIG_HIPPI is not set 1041# CONFIG_HIPPI is not set
784# CONFIG_PPP is not set 1042# CONFIG_PPP is not set
785# CONFIG_SLIP is not set 1043# CONFIG_SLIP is not set
786# CONFIG_NET_FC is not set 1044# CONFIG_NET_FC is not set
787# CONFIG_SHAPER is not set
788CONFIG_NETCONSOLE=y 1045CONFIG_NETCONSOLE=y
1046# CONFIG_NETCONSOLE_DYNAMIC is not set
789CONFIG_NETPOLL=y 1047CONFIG_NETPOLL=y
790# CONFIG_NETPOLL_TRAP is not set 1048# CONFIG_NETPOLL_TRAP is not set
791CONFIG_NET_POLL_CONTROLLER=y 1049CONFIG_NET_POLL_CONTROLLER=y
@@ -796,18 +1054,17 @@ CONFIG_NET_POLL_CONTROLLER=y
796# Input device support 1054# Input device support
797# 1055#
798CONFIG_INPUT=y 1056CONFIG_INPUT=y
799# CONFIG_INPUT_FF_MEMLESS is not set 1057CONFIG_INPUT_FF_MEMLESS=y
800# CONFIG_INPUT_POLLDEV is not set 1058CONFIG_INPUT_POLLDEV=y
801 1059
802# 1060#
803# Userland interfaces 1061# Userland interfaces
804# 1062#
805CONFIG_INPUT_MOUSEDEV=y 1063CONFIG_INPUT_MOUSEDEV=y
806CONFIG_INPUT_MOUSEDEV_PSAUX=y 1064# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
807CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 1065CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
808CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 1066CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
809# CONFIG_INPUT_JOYDEV is not set 1067# CONFIG_INPUT_JOYDEV is not set
810# CONFIG_INPUT_TSDEV is not set
811CONFIG_INPUT_EVDEV=y 1068CONFIG_INPUT_EVDEV=y
812# CONFIG_INPUT_EVBUG is not set 1069# CONFIG_INPUT_EVBUG is not set
813 1070
@@ -832,17 +1089,62 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
832# CONFIG_MOUSE_SERIAL is not set 1089# CONFIG_MOUSE_SERIAL is not set
833# CONFIG_MOUSE_APPLETOUCH is not set 1090# CONFIG_MOUSE_APPLETOUCH is not set
834# CONFIG_MOUSE_VSXXXAA is not set 1091# CONFIG_MOUSE_VSXXXAA is not set
835# CONFIG_INPUT_JOYSTICK is not set 1092CONFIG_INPUT_JOYSTICK=y
836# CONFIG_INPUT_TABLET is not set 1093# CONFIG_JOYSTICK_ANALOG is not set
837# CONFIG_INPUT_TOUCHSCREEN is not set 1094# CONFIG_JOYSTICK_A3D is not set
838# CONFIG_INPUT_MISC is not set 1095# CONFIG_JOYSTICK_ADI is not set
1096# CONFIG_JOYSTICK_COBRA is not set
1097# CONFIG_JOYSTICK_GF2K is not set
1098# CONFIG_JOYSTICK_GRIP is not set
1099# CONFIG_JOYSTICK_GRIP_MP is not set
1100# CONFIG_JOYSTICK_GUILLEMOT is not set
1101# CONFIG_JOYSTICK_INTERACT is not set
1102# CONFIG_JOYSTICK_SIDEWINDER is not set
1103# CONFIG_JOYSTICK_TMDC is not set
1104# CONFIG_JOYSTICK_IFORCE is not set
1105# CONFIG_JOYSTICK_WARRIOR is not set
1106# CONFIG_JOYSTICK_MAGELLAN is not set
1107# CONFIG_JOYSTICK_SPACEORB is not set
1108# CONFIG_JOYSTICK_SPACEBALL is not set
1109# CONFIG_JOYSTICK_STINGER is not set
1110# CONFIG_JOYSTICK_TWIDJOY is not set
1111# CONFIG_JOYSTICK_ZHENHUA is not set
1112# CONFIG_JOYSTICK_JOYDUMP is not set
1113# CONFIG_JOYSTICK_XPAD is not set
1114CONFIG_INPUT_TABLET=y
1115# CONFIG_TABLET_USB_ACECAD is not set
1116# CONFIG_TABLET_USB_AIPTEK is not set
1117# CONFIG_TABLET_USB_GTCO is not set
1118# CONFIG_TABLET_USB_KBTAB is not set
1119# CONFIG_TABLET_USB_WACOM is not set
1120CONFIG_INPUT_TOUCHSCREEN=y
1121# CONFIG_TOUCHSCREEN_FUJITSU is not set
1122# CONFIG_TOUCHSCREEN_GUNZE is not set
1123# CONFIG_TOUCHSCREEN_ELO is not set
1124# CONFIG_TOUCHSCREEN_MTOUCH is not set
1125# CONFIG_TOUCHSCREEN_MK712 is not set
1126# CONFIG_TOUCHSCREEN_PENMOUNT is not set
1127# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
1128# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
1129# CONFIG_TOUCHSCREEN_UCB1400 is not set
1130# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
1131CONFIG_INPUT_MISC=y
1132# CONFIG_INPUT_PCSPKR is not set
1133# CONFIG_INPUT_APANEL is not set
1134# CONFIG_INPUT_ATLAS_BTNS is not set
1135# CONFIG_INPUT_ATI_REMOTE is not set
1136# CONFIG_INPUT_ATI_REMOTE2 is not set
1137# CONFIG_INPUT_KEYSPAN_REMOTE is not set
1138# CONFIG_INPUT_POWERMATE is not set
1139# CONFIG_INPUT_YEALINK is not set
1140# CONFIG_INPUT_UINPUT is not set
839 1141
840# 1142#
841# Hardware I/O ports 1143# Hardware I/O ports
842# 1144#
843CONFIG_SERIO=y 1145CONFIG_SERIO=y
844CONFIG_SERIO_I8042=y 1146CONFIG_SERIO_I8042=y
845# CONFIG_SERIO_SERPORT is not set 1147CONFIG_SERIO_SERPORT=y
846# CONFIG_SERIO_CT82C710 is not set 1148# CONFIG_SERIO_CT82C710 is not set
847# CONFIG_SERIO_PCIPS2 is not set 1149# CONFIG_SERIO_PCIPS2 is not set
848CONFIG_SERIO_LIBPS2=y 1150CONFIG_SERIO_LIBPS2=y
@@ -855,8 +1157,26 @@ CONFIG_SERIO_LIBPS2=y
855CONFIG_VT=y 1157CONFIG_VT=y
856CONFIG_VT_CONSOLE=y 1158CONFIG_VT_CONSOLE=y
857CONFIG_HW_CONSOLE=y 1159CONFIG_HW_CONSOLE=y
858# CONFIG_VT_HW_CONSOLE_BINDING is not set 1160CONFIG_VT_HW_CONSOLE_BINDING=y
859# CONFIG_SERIAL_NONSTANDARD is not set 1161CONFIG_DEVKMEM=y
1162CONFIG_SERIAL_NONSTANDARD=y
1163# CONFIG_COMPUTONE is not set
1164# CONFIG_ROCKETPORT is not set
1165# CONFIG_CYCLADES is not set
1166# CONFIG_DIGIEPCA is not set
1167# CONFIG_MOXA_INTELLIO is not set
1168# CONFIG_MOXA_SMARTIO is not set
1169# CONFIG_ISI is not set
1170# CONFIG_SYNCLINK is not set
1171# CONFIG_SYNCLINKMP is not set
1172# CONFIG_SYNCLINK_GT is not set
1173# CONFIG_N_HDLC is not set
1174# CONFIG_RISCOM8 is not set
1175# CONFIG_SPECIALIX is not set
1176# CONFIG_SX is not set
1177# CONFIG_RIO is not set
1178# CONFIG_STALDRV is not set
1179# CONFIG_NOZOMI is not set
860 1180
861# 1181#
862# Serial drivers 1182# Serial drivers
@@ -866,9 +1186,14 @@ CONFIG_SERIAL_8250_CONSOLE=y
866CONFIG_FIX_EARLYCON_MEM=y 1186CONFIG_FIX_EARLYCON_MEM=y
867CONFIG_SERIAL_8250_PCI=y 1187CONFIG_SERIAL_8250_PCI=y
868CONFIG_SERIAL_8250_PNP=y 1188CONFIG_SERIAL_8250_PNP=y
869CONFIG_SERIAL_8250_NR_UARTS=4 1189# CONFIG_SERIAL_8250_CS is not set
1190CONFIG_SERIAL_8250_NR_UARTS=32
870CONFIG_SERIAL_8250_RUNTIME_UARTS=4 1191CONFIG_SERIAL_8250_RUNTIME_UARTS=4
871# CONFIG_SERIAL_8250_EXTENDED is not set 1192CONFIG_SERIAL_8250_EXTENDED=y
1193CONFIG_SERIAL_8250_MANY_PORTS=y
1194CONFIG_SERIAL_8250_SHARE_IRQ=y
1195CONFIG_SERIAL_8250_DETECT_IRQ=y
1196CONFIG_SERIAL_8250_RSA=y
872 1197
873# 1198#
874# Non-8250 serial port support 1199# Non-8250 serial port support
@@ -877,78 +1202,260 @@ CONFIG_SERIAL_CORE=y
877CONFIG_SERIAL_CORE_CONSOLE=y 1202CONFIG_SERIAL_CORE_CONSOLE=y
878# CONFIG_SERIAL_JSM is not set 1203# CONFIG_SERIAL_JSM is not set
879CONFIG_UNIX98_PTYS=y 1204CONFIG_UNIX98_PTYS=y
880CONFIG_LEGACY_PTYS=y 1205# CONFIG_LEGACY_PTYS is not set
881CONFIG_LEGACY_PTY_COUNT=256
882# CONFIG_IPMI_HANDLER is not set 1206# CONFIG_IPMI_HANDLER is not set
883# CONFIG_WATCHDOG is not set
884CONFIG_HW_RANDOM=y 1207CONFIG_HW_RANDOM=y
885CONFIG_HW_RANDOM_INTEL=y 1208# CONFIG_HW_RANDOM_INTEL is not set
886CONFIG_HW_RANDOM_AMD=y 1209# CONFIG_HW_RANDOM_AMD is not set
887# CONFIG_NVRAM is not set 1210CONFIG_NVRAM=y
888CONFIG_RTC=y
889# CONFIG_R3964 is not set 1211# CONFIG_R3964 is not set
890# CONFIG_APPLICOM is not set 1212# CONFIG_APPLICOM is not set
891CONFIG_AGP=y 1213
892CONFIG_AGP_AMD64=y 1214#
893CONFIG_AGP_INTEL=y 1215# PCMCIA character devices
894# CONFIG_AGP_SIS is not set 1216#
895# CONFIG_AGP_VIA is not set 1217# CONFIG_SYNCLINK_CS is not set
896# CONFIG_DRM is not set 1218# CONFIG_CARDMAN_4000 is not set
1219# CONFIG_CARDMAN_4040 is not set
1220# CONFIG_IPWIRELESS is not set
897# CONFIG_MWAVE is not set 1221# CONFIG_MWAVE is not set
898# CONFIG_PC8736x_GPIO is not set 1222# CONFIG_PC8736x_GPIO is not set
899CONFIG_RAW_DRIVER=y 1223# CONFIG_RAW_DRIVER is not set
900CONFIG_MAX_RAW_DEVS=256
901CONFIG_HPET=y 1224CONFIG_HPET=y
902# CONFIG_HPET_RTC_IRQ is not set 1225# CONFIG_HPET_RTC_IRQ is not set
903CONFIG_HPET_MMAP=y 1226# CONFIG_HPET_MMAP is not set
904# CONFIG_HANGCHECK_TIMER is not set 1227# CONFIG_HANGCHECK_TIMER is not set
905# CONFIG_TCG_TPM is not set 1228# CONFIG_TCG_TPM is not set
906# CONFIG_TELCLOCK is not set 1229# CONFIG_TELCLOCK is not set
907CONFIG_DEVPORT=y 1230CONFIG_DEVPORT=y
908# CONFIG_I2C is not set 1231CONFIG_I2C=y
909 1232CONFIG_I2C_BOARDINFO=y
910# 1233# CONFIG_I2C_CHARDEV is not set
911# SPI support 1234
912# 1235#
1236# I2C Hardware Bus support
1237#
1238# CONFIG_I2C_ALI1535 is not set
1239# CONFIG_I2C_ALI1563 is not set
1240# CONFIG_I2C_ALI15X3 is not set
1241# CONFIG_I2C_AMD756 is not set
1242# CONFIG_I2C_AMD8111 is not set
1243CONFIG_I2C_I801=y
1244# CONFIG_I2C_I810 is not set
1245# CONFIG_I2C_PIIX4 is not set
1246# CONFIG_I2C_NFORCE2 is not set
1247# CONFIG_I2C_OCORES is not set
1248# CONFIG_I2C_PARPORT_LIGHT is not set
1249# CONFIG_I2C_PROSAVAGE is not set
1250# CONFIG_I2C_SAVAGE4 is not set
1251# CONFIG_I2C_SIMTEC is not set
1252# CONFIG_I2C_SIS5595 is not set
1253# CONFIG_I2C_SIS630 is not set
1254# CONFIG_I2C_SIS96X is not set
1255# CONFIG_I2C_TAOS_EVM is not set
1256# CONFIG_I2C_STUB is not set
1257# CONFIG_I2C_TINY_USB is not set
1258# CONFIG_I2C_VIA is not set
1259# CONFIG_I2C_VIAPRO is not set
1260# CONFIG_I2C_VOODOO3 is not set
1261# CONFIG_I2C_PCA_PLATFORM is not set
1262
1263#
1264# Miscellaneous I2C Chip support
1265#
1266# CONFIG_DS1682 is not set
1267# CONFIG_SENSORS_EEPROM is not set
1268# CONFIG_SENSORS_PCF8574 is not set
1269# CONFIG_PCF8575 is not set
1270# CONFIG_SENSORS_PCF8591 is not set
1271# CONFIG_SENSORS_MAX6875 is not set
1272# CONFIG_SENSORS_TSL2550 is not set
1273# CONFIG_I2C_DEBUG_CORE is not set
1274# CONFIG_I2C_DEBUG_ALGO is not set
1275# CONFIG_I2C_DEBUG_BUS is not set
1276# CONFIG_I2C_DEBUG_CHIP is not set
913# CONFIG_SPI is not set 1277# CONFIG_SPI is not set
914# CONFIG_SPI_MASTER is not set
915# CONFIG_W1 is not set 1278# CONFIG_W1 is not set
916# CONFIG_POWER_SUPPLY is not set 1279CONFIG_POWER_SUPPLY=y
1280# CONFIG_POWER_SUPPLY_DEBUG is not set
1281# CONFIG_PDA_POWER is not set
1282# CONFIG_BATTERY_DS2760 is not set
917# CONFIG_HWMON is not set 1283# CONFIG_HWMON is not set
1284CONFIG_THERMAL=y
1285CONFIG_WATCHDOG=y
1286# CONFIG_WATCHDOG_NOWAYOUT is not set
1287
1288#
1289# Watchdog Device Drivers
1290#
1291# CONFIG_SOFT_WATCHDOG is not set
1292# CONFIG_ACQUIRE_WDT is not set
1293# CONFIG_ADVANTECH_WDT is not set
1294# CONFIG_ALIM1535_WDT is not set
1295# CONFIG_ALIM7101_WDT is not set
1296# CONFIG_SC520_WDT is not set
1297# CONFIG_EUROTECH_WDT is not set
1298# CONFIG_IB700_WDT is not set
1299# CONFIG_IBMASR is not set
1300# CONFIG_WAFER_WDT is not set
1301# CONFIG_I6300ESB_WDT is not set
1302# CONFIG_ITCO_WDT is not set
1303# CONFIG_IT8712F_WDT is not set
1304# CONFIG_HP_WATCHDOG is not set
1305# CONFIG_SC1200_WDT is not set
1306# CONFIG_PC87413_WDT is not set
1307# CONFIG_60XX_WDT is not set
1308# CONFIG_SBC8360_WDT is not set
1309# CONFIG_CPU5_WDT is not set
1310# CONFIG_SMSC37B787_WDT is not set
1311# CONFIG_W83627HF_WDT is not set
1312# CONFIG_W83697HF_WDT is not set
1313# CONFIG_W83877F_WDT is not set
1314# CONFIG_W83977F_WDT is not set
1315# CONFIG_MACHZ_WDT is not set
1316# CONFIG_SBC_EPX_C3_WATCHDOG is not set
1317
1318#
1319# PCI-based Watchdog Cards
1320#
1321# CONFIG_PCIPCWATCHDOG is not set
1322# CONFIG_WDTPCI is not set
1323
1324#
1325# USB-based Watchdog Cards
1326#
1327# CONFIG_USBPCWATCHDOG is not set
1328
1329#
1330# Sonics Silicon Backplane
1331#
1332CONFIG_SSB_POSSIBLE=y
1333# CONFIG_SSB is not set
918 1334
919# 1335#
920# Multifunction device drivers 1336# Multifunction device drivers
921# 1337#
922# CONFIG_MFD_SM501 is not set 1338# CONFIG_MFD_SM501 is not set
1339# CONFIG_HTC_PASIC3 is not set
923 1340
924# 1341#
925# Multimedia devices 1342# Multimedia devices
926# 1343#
1344
1345#
1346# Multimedia core support
1347#
927# CONFIG_VIDEO_DEV is not set 1348# CONFIG_VIDEO_DEV is not set
928# CONFIG_DVB_CORE is not set 1349# CONFIG_DVB_CORE is not set
1350
1351#
1352# Multimedia drivers
1353#
929CONFIG_DAB=y 1354CONFIG_DAB=y
930# CONFIG_USB_DABUSB is not set 1355# CONFIG_USB_DABUSB is not set
931 1356
932# 1357#
933# Graphics support 1358# Graphics support
934# 1359#
935# CONFIG_BACKLIGHT_LCD_SUPPORT is not set 1360CONFIG_AGP=y
1361CONFIG_AGP_AMD64=y
1362CONFIG_AGP_INTEL=y
1363# CONFIG_AGP_SIS is not set
1364# CONFIG_AGP_VIA is not set
1365CONFIG_DRM=y
1366# CONFIG_DRM_TDFX is not set
1367# CONFIG_DRM_R128 is not set
1368# CONFIG_DRM_RADEON is not set
1369# CONFIG_DRM_I810 is not set
1370# CONFIG_DRM_I830 is not set
1371CONFIG_DRM_I915=y
1372# CONFIG_DRM_MGA is not set
1373# CONFIG_DRM_SIS is not set
1374# CONFIG_DRM_VIA is not set
1375# CONFIG_DRM_SAVAGE is not set
1376# CONFIG_VGASTATE is not set
1377# CONFIG_VIDEO_OUTPUT_CONTROL is not set
1378CONFIG_FB=y
1379# CONFIG_FIRMWARE_EDID is not set
1380# CONFIG_FB_DDC is not set
1381CONFIG_FB_CFB_FILLRECT=y
1382CONFIG_FB_CFB_COPYAREA=y
1383CONFIG_FB_CFB_IMAGEBLIT=y
1384# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
1385# CONFIG_FB_SYS_FILLRECT is not set
1386# CONFIG_FB_SYS_COPYAREA is not set
1387# CONFIG_FB_SYS_IMAGEBLIT is not set
1388# CONFIG_FB_FOREIGN_ENDIAN is not set
1389# CONFIG_FB_SYS_FOPS is not set
1390CONFIG_FB_DEFERRED_IO=y
1391# CONFIG_FB_SVGALIB is not set
1392# CONFIG_FB_MACMODES is not set
1393# CONFIG_FB_BACKLIGHT is not set
1394CONFIG_FB_MODE_HELPERS=y
1395CONFIG_FB_TILEBLITTING=y
1396
1397#
1398# Frame buffer hardware drivers
1399#
1400# CONFIG_FB_CIRRUS is not set
1401# CONFIG_FB_PM2 is not set
1402# CONFIG_FB_CYBER2000 is not set
1403# CONFIG_FB_ARC is not set
1404# CONFIG_FB_ASILIANT is not set
1405# CONFIG_FB_IMSTT is not set
1406# CONFIG_FB_VGA16 is not set
1407# CONFIG_FB_UVESA is not set
1408# CONFIG_FB_VESA is not set
1409CONFIG_FB_EFI=y
1410# CONFIG_FB_IMAC is not set
1411# CONFIG_FB_N411 is not set
1412# CONFIG_FB_HGA is not set
1413# CONFIG_FB_S1D13XXX is not set
1414# CONFIG_FB_NVIDIA is not set
1415# CONFIG_FB_RIVA is not set
1416# CONFIG_FB_LE80578 is not set
1417# CONFIG_FB_INTEL is not set
1418# CONFIG_FB_MATROX is not set
1419# CONFIG_FB_RADEON is not set
1420# CONFIG_FB_ATY128 is not set
1421# CONFIG_FB_ATY is not set
1422# CONFIG_FB_S3 is not set
1423# CONFIG_FB_SAVAGE is not set
1424# CONFIG_FB_SIS is not set
1425# CONFIG_FB_NEOMAGIC is not set
1426# CONFIG_FB_KYRO is not set
1427# CONFIG_FB_3DFX is not set
1428# CONFIG_FB_VOODOO1 is not set
1429# CONFIG_FB_VT8623 is not set
1430# CONFIG_FB_TRIDENT is not set
1431# CONFIG_FB_ARK is not set
1432# CONFIG_FB_PM3 is not set
1433# CONFIG_FB_GEODE is not set
1434# CONFIG_FB_VIRTUAL is not set
1435CONFIG_BACKLIGHT_LCD_SUPPORT=y
1436# CONFIG_LCD_CLASS_DEVICE is not set
1437CONFIG_BACKLIGHT_CLASS_DEVICE=y
1438# CONFIG_BACKLIGHT_CORGI is not set
1439# CONFIG_BACKLIGHT_PROGEAR is not set
936 1440
937# 1441#
938# Display device support 1442# Display device support
939# 1443#
940# CONFIG_DISPLAY_SUPPORT is not set 1444# CONFIG_DISPLAY_SUPPORT is not set
941# CONFIG_VGASTATE is not set
942# CONFIG_FB is not set
943 1445
944# 1446#
945# Console display driver support 1447# Console display driver support
946# 1448#
947CONFIG_VGA_CONSOLE=y 1449CONFIG_VGA_CONSOLE=y
948CONFIG_VGACON_SOFT_SCROLLBACK=y 1450CONFIG_VGACON_SOFT_SCROLLBACK=y
949CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=256 1451CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
950CONFIG_VIDEO_SELECT=y 1452CONFIG_VIDEO_SELECT=y
951CONFIG_DUMMY_CONSOLE=y 1453CONFIG_DUMMY_CONSOLE=y
1454# CONFIG_FRAMEBUFFER_CONSOLE is not set
1455CONFIG_LOGO=y
1456# CONFIG_LOGO_LINUX_MONO is not set
1457# CONFIG_LOGO_LINUX_VGA16 is not set
1458CONFIG_LOGO_LINUX_CLUT224=y
952 1459
953# 1460#
954# Sound 1461# Sound
@@ -958,33 +1465,165 @@ CONFIG_SOUND=y
958# 1465#
959# Advanced Linux Sound Architecture 1466# Advanced Linux Sound Architecture
960# 1467#
961# CONFIG_SND is not set 1468CONFIG_SND=y
1469CONFIG_SND_TIMER=y
1470CONFIG_SND_PCM=y
1471CONFIG_SND_HWDEP=y
1472CONFIG_SND_SEQUENCER=y
1473CONFIG_SND_SEQ_DUMMY=y
1474CONFIG_SND_OSSEMUL=y
1475CONFIG_SND_MIXER_OSS=y
1476CONFIG_SND_PCM_OSS=y
1477CONFIG_SND_PCM_OSS_PLUGINS=y
1478CONFIG_SND_SEQUENCER_OSS=y
1479CONFIG_SND_DYNAMIC_MINORS=y
1480CONFIG_SND_SUPPORT_OLD_API=y
1481CONFIG_SND_VERBOSE_PROCFS=y
1482# CONFIG_SND_VERBOSE_PRINTK is not set
1483# CONFIG_SND_DEBUG is not set
1484CONFIG_SND_VMASTER=y
1485
1486#
1487# Generic devices
1488#
1489# CONFIG_SND_PCSP is not set
1490# CONFIG_SND_DUMMY is not set
1491# CONFIG_SND_VIRMIDI is not set
1492# CONFIG_SND_MTPAV is not set
1493# CONFIG_SND_SERIAL_U16550 is not set
1494# CONFIG_SND_MPU401 is not set
1495
1496#
1497# PCI devices
1498#
1499# CONFIG_SND_AD1889 is not set
1500# CONFIG_SND_ALS300 is not set
1501# CONFIG_SND_ALS4000 is not set
1502# CONFIG_SND_ALI5451 is not set
1503# CONFIG_SND_ATIIXP is not set
1504# CONFIG_SND_ATIIXP_MODEM is not set
1505# CONFIG_SND_AU8810 is not set
1506# CONFIG_SND_AU8820 is not set
1507# CONFIG_SND_AU8830 is not set
1508# CONFIG_SND_AW2 is not set
1509# CONFIG_SND_AZT3328 is not set
1510# CONFIG_SND_BT87X is not set
1511# CONFIG_SND_CA0106 is not set
1512# CONFIG_SND_CMIPCI is not set
1513# CONFIG_SND_OXYGEN is not set
1514# CONFIG_SND_CS4281 is not set
1515# CONFIG_SND_CS46XX is not set
1516# CONFIG_SND_CS5530 is not set
1517# CONFIG_SND_DARLA20 is not set
1518# CONFIG_SND_GINA20 is not set
1519# CONFIG_SND_LAYLA20 is not set
1520# CONFIG_SND_DARLA24 is not set
1521# CONFIG_SND_GINA24 is not set
1522# CONFIG_SND_LAYLA24 is not set
1523# CONFIG_SND_MONA is not set
1524# CONFIG_SND_MIA is not set
1525# CONFIG_SND_ECHO3G is not set
1526# CONFIG_SND_INDIGO is not set
1527# CONFIG_SND_INDIGOIO is not set
1528# CONFIG_SND_INDIGODJ is not set
1529# CONFIG_SND_EMU10K1 is not set
1530# CONFIG_SND_EMU10K1X is not set
1531# CONFIG_SND_ENS1370 is not set
1532# CONFIG_SND_ENS1371 is not set
1533# CONFIG_SND_ES1938 is not set
1534# CONFIG_SND_ES1968 is not set
1535# CONFIG_SND_FM801 is not set
1536CONFIG_SND_HDA_INTEL=y
1537CONFIG_SND_HDA_HWDEP=y
1538CONFIG_SND_HDA_CODEC_REALTEK=y
1539CONFIG_SND_HDA_CODEC_ANALOG=y
1540CONFIG_SND_HDA_CODEC_SIGMATEL=y
1541CONFIG_SND_HDA_CODEC_VIA=y
1542CONFIG_SND_HDA_CODEC_ATIHDMI=y
1543CONFIG_SND_HDA_CODEC_CONEXANT=y
1544CONFIG_SND_HDA_CODEC_CMEDIA=y
1545CONFIG_SND_HDA_CODEC_SI3054=y
1546CONFIG_SND_HDA_GENERIC=y
1547# CONFIG_SND_HDA_POWER_SAVE is not set
1548# CONFIG_SND_HDSP is not set
1549# CONFIG_SND_HDSPM is not set
1550# CONFIG_SND_HIFIER is not set
1551# CONFIG_SND_ICE1712 is not set
1552# CONFIG_SND_ICE1724 is not set
1553# CONFIG_SND_INTEL8X0 is not set
1554# CONFIG_SND_INTEL8X0M is not set
1555# CONFIG_SND_KORG1212 is not set
1556# CONFIG_SND_MAESTRO3 is not set
1557# CONFIG_SND_MIXART is not set
1558# CONFIG_SND_NM256 is not set
1559# CONFIG_SND_PCXHR is not set
1560# CONFIG_SND_RIPTIDE is not set
1561# CONFIG_SND_RME32 is not set
1562# CONFIG_SND_RME96 is not set
1563# CONFIG_SND_RME9652 is not set
1564# CONFIG_SND_SONICVIBES is not set
1565# CONFIG_SND_TRIDENT is not set
1566# CONFIG_SND_VIA82XX is not set
1567# CONFIG_SND_VIA82XX_MODEM is not set
1568# CONFIG_SND_VIRTUOSO is not set
1569# CONFIG_SND_VX222 is not set
1570# CONFIG_SND_YMFPCI is not set
1571
1572#
1573# USB devices
1574#
1575# CONFIG_SND_USB_AUDIO is not set
1576# CONFIG_SND_USB_USX2Y is not set
1577# CONFIG_SND_USB_CAIAQ is not set
1578
1579#
1580# PCMCIA devices
1581#
1582# CONFIG_SND_VXPOCKET is not set
1583# CONFIG_SND_PDAUDIOCF is not set
1584
1585#
1586# System on Chip audio support
1587#
1588# CONFIG_SND_SOC is not set
1589
1590#
1591# ALSA SoC audio for Freescale SOCs
1592#
1593
1594#
1595# SoC Audio for the Texas Instruments OMAP
1596#
962 1597
963# 1598#
964# Open Sound System 1599# Open Sound System
965# 1600#
966CONFIG_SOUND_PRIME=y 1601# CONFIG_SOUND_PRIME is not set
967# CONFIG_SOUND_TRIDENT is not set
968# CONFIG_SOUND_MSNDCLAS is not set
969# CONFIG_SOUND_MSNDPIN is not set
970# CONFIG_SOUND_OSS is not set
971CONFIG_HID_SUPPORT=y 1602CONFIG_HID_SUPPORT=y
972CONFIG_HID=y 1603CONFIG_HID=y
973# CONFIG_HID_DEBUG is not set 1604CONFIG_HID_DEBUG=y
1605CONFIG_HIDRAW=y
974 1606
975# 1607#
976# USB Input Devices 1608# USB Input Devices
977# 1609#
978CONFIG_USB_HID=y 1610CONFIG_USB_HID=y
979# CONFIG_USB_HIDINPUT_POWERBOOK is not set 1611CONFIG_USB_HIDINPUT_POWERBOOK=y
980# CONFIG_HID_FF is not set 1612CONFIG_HID_FF=y
981# CONFIG_USB_HIDDEV is not set 1613CONFIG_HID_PID=y
1614CONFIG_LOGITECH_FF=y
1615# CONFIG_LOGIRUMBLEPAD2_FF is not set
1616CONFIG_PANTHERLORD_FF=y
1617CONFIG_THRUSTMASTER_FF=y
1618CONFIG_ZEROPLUS_FF=y
1619CONFIG_USB_HIDDEV=y
982CONFIG_USB_SUPPORT=y 1620CONFIG_USB_SUPPORT=y
983CONFIG_USB_ARCH_HAS_HCD=y 1621CONFIG_USB_ARCH_HAS_HCD=y
984CONFIG_USB_ARCH_HAS_OHCI=y 1622CONFIG_USB_ARCH_HAS_OHCI=y
985CONFIG_USB_ARCH_HAS_EHCI=y 1623CONFIG_USB_ARCH_HAS_EHCI=y
986CONFIG_USB=y 1624CONFIG_USB=y
987# CONFIG_USB_DEBUG is not set 1625CONFIG_USB_DEBUG=y
1626CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
988 1627
989# 1628#
990# Miscellaneous USB options 1629# Miscellaneous USB options
@@ -992,18 +1631,18 @@ CONFIG_USB=y
992CONFIG_USB_DEVICEFS=y 1631CONFIG_USB_DEVICEFS=y
993# CONFIG_USB_DEVICE_CLASS is not set 1632# CONFIG_USB_DEVICE_CLASS is not set
994# CONFIG_USB_DYNAMIC_MINORS is not set 1633# CONFIG_USB_DYNAMIC_MINORS is not set
995# CONFIG_USB_SUSPEND is not set 1634CONFIG_USB_SUSPEND=y
996# CONFIG_USB_PERSIST is not set
997# CONFIG_USB_OTG is not set 1635# CONFIG_USB_OTG is not set
998 1636
999# 1637#
1000# USB Host Controller Drivers 1638# USB Host Controller Drivers
1001# 1639#
1640# CONFIG_USB_C67X00_HCD is not set
1002CONFIG_USB_EHCI_HCD=y 1641CONFIG_USB_EHCI_HCD=y
1003# CONFIG_USB_EHCI_SPLIT_ISO is not set
1004# CONFIG_USB_EHCI_ROOT_HUB_TT is not set 1642# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
1005# CONFIG_USB_EHCI_TT_NEWSCHED is not set 1643# CONFIG_USB_EHCI_TT_NEWSCHED is not set
1006# CONFIG_USB_ISP116X_HCD is not set 1644# CONFIG_USB_ISP116X_HCD is not set
1645# CONFIG_USB_ISP1760_HCD is not set
1007CONFIG_USB_OHCI_HCD=y 1646CONFIG_USB_OHCI_HCD=y
1008# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set 1647# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
1009# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set 1648# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
@@ -1036,8 +1675,10 @@ CONFIG_USB_STORAGE=y
1036# CONFIG_USB_STORAGE_SDDR55 is not set 1675# CONFIG_USB_STORAGE_SDDR55 is not set
1037# CONFIG_USB_STORAGE_JUMPSHOT is not set 1676# CONFIG_USB_STORAGE_JUMPSHOT is not set
1038# CONFIG_USB_STORAGE_ALAUDA is not set 1677# CONFIG_USB_STORAGE_ALAUDA is not set
1678# CONFIG_USB_STORAGE_ONETOUCH is not set
1039# CONFIG_USB_STORAGE_KARMA is not set 1679# CONFIG_USB_STORAGE_KARMA is not set
1040# CONFIG_USB_LIBUSUAL is not set 1680# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
1681CONFIG_USB_LIBUSUAL=y
1041 1682
1042# 1683#
1043# USB Imaging devices 1684# USB Imaging devices
@@ -1049,10 +1690,6 @@ CONFIG_USB_MON=y
1049# 1690#
1050# USB port drivers 1691# USB port drivers
1051# 1692#
1052
1053#
1054# USB Serial Converter support
1055#
1056# CONFIG_USB_SERIAL is not set 1693# CONFIG_USB_SERIAL is not set
1057 1694
1058# 1695#
@@ -1078,98 +1715,126 @@ CONFIG_USB_MON=y
1078# CONFIG_USB_TRANCEVIBRATOR is not set 1715# CONFIG_USB_TRANCEVIBRATOR is not set
1079# CONFIG_USB_IOWARRIOR is not set 1716# CONFIG_USB_IOWARRIOR is not set
1080# CONFIG_USB_TEST is not set 1717# CONFIG_USB_TEST is not set
1718# CONFIG_USB_GADGET is not set
1719# CONFIG_MMC is not set
1720# CONFIG_MEMSTICK is not set
1721CONFIG_NEW_LEDS=y
1722CONFIG_LEDS_CLASS=y
1081 1723
1082# 1724#
1083# USB DSL modem support 1725# LED drivers
1084# 1726#
1727# CONFIG_LEDS_CLEVO_MAIL is not set
1085 1728
1086# 1729#
1087# USB Gadget Support 1730# LED Triggers
1088# 1731#
1089# CONFIG_USB_GADGET is not set 1732CONFIG_LEDS_TRIGGERS=y
1090# CONFIG_MMC is not set 1733# CONFIG_LEDS_TRIGGER_TIMER is not set
1734# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
1735# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
1736# CONFIG_ACCESSIBILITY is not set
1737# CONFIG_INFINIBAND is not set
1738CONFIG_EDAC=y
1091 1739
1092# 1740#
1093# LED devices 1741# Reporting subsystems
1094# 1742#
1095# CONFIG_NEW_LEDS is not set 1743# CONFIG_EDAC_DEBUG is not set
1744# CONFIG_EDAC_MM_EDAC is not set
1745CONFIG_RTC_LIB=y
1746CONFIG_RTC_CLASS=y
1747# CONFIG_RTC_HCTOSYS is not set
1748# CONFIG_RTC_DEBUG is not set
1096 1749
1097# 1750#
1098# LED drivers 1751# RTC interfaces
1099# 1752#
1753CONFIG_RTC_INTF_SYSFS=y
1754CONFIG_RTC_INTF_PROC=y
1755CONFIG_RTC_INTF_DEV=y
1756# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
1757# CONFIG_RTC_DRV_TEST is not set
1100 1758
1101# 1759#
1102# LED Triggers 1760# I2C RTC drivers
1103# 1761#
1104# CONFIG_INFINIBAND is not set 1762# CONFIG_RTC_DRV_DS1307 is not set
1105# CONFIG_EDAC is not set 1763# CONFIG_RTC_DRV_DS1374 is not set
1764# CONFIG_RTC_DRV_DS1672 is not set
1765# CONFIG_RTC_DRV_MAX6900 is not set
1766# CONFIG_RTC_DRV_RS5C372 is not set
1767# CONFIG_RTC_DRV_ISL1208 is not set
1768# CONFIG_RTC_DRV_X1205 is not set
1769# CONFIG_RTC_DRV_PCF8563 is not set
1770# CONFIG_RTC_DRV_PCF8583 is not set
1771# CONFIG_RTC_DRV_M41T80 is not set
1772# CONFIG_RTC_DRV_S35390A is not set
1106 1773
1107# 1774#
1108# Real Time Clock 1775# SPI RTC drivers
1109# 1776#
1110# CONFIG_RTC_CLASS is not set
1111 1777
1112# 1778#
1113# DMA Engine support 1779# Platform RTC drivers
1114# 1780#
1115# CONFIG_DMA_ENGINE is not set 1781CONFIG_RTC_DRV_CMOS=y
1782# CONFIG_RTC_DRV_DS1511 is not set
1783# CONFIG_RTC_DRV_DS1553 is not set
1784# CONFIG_RTC_DRV_DS1742 is not set
1785# CONFIG_RTC_DRV_STK17TA8 is not set
1786# CONFIG_RTC_DRV_M48T86 is not set
1787# CONFIG_RTC_DRV_M48T59 is not set
1788# CONFIG_RTC_DRV_V3020 is not set
1116 1789
1117# 1790#
1118# DMA Clients 1791# on-CPU RTC drivers
1119# 1792#
1793CONFIG_DMADEVICES=y
1120 1794
1121# 1795#
1122# DMA Devices 1796# DMA Devices
1123# 1797#
1124CONFIG_VIRTUALIZATION=y 1798# CONFIG_INTEL_IOATDMA is not set
1125# CONFIG_KVM is not set
1126
1127#
1128# Userspace I/O
1129#
1130# CONFIG_UIO is not set 1799# CONFIG_UIO is not set
1131 1800
1132# 1801#
1133# Firmware Drivers 1802# Firmware Drivers
1134# 1803#
1135# CONFIG_EDD is not set 1804# CONFIG_EDD is not set
1805CONFIG_EFI_VARS=y
1136# CONFIG_DELL_RBU is not set 1806# CONFIG_DELL_RBU is not set
1137# CONFIG_DCDBAS is not set 1807# CONFIG_DCDBAS is not set
1138CONFIG_DMIID=y 1808CONFIG_DMIID=y
1809# CONFIG_ISCSI_IBFT_FIND is not set
1139 1810
1140# 1811#
1141# File systems 1812# File systems
1142# 1813#
1143CONFIG_EXT2_FS=y 1814# CONFIG_EXT2_FS is not set
1144CONFIG_EXT2_FS_XATTR=y
1145CONFIG_EXT2_FS_POSIX_ACL=y
1146# CONFIG_EXT2_FS_SECURITY is not set
1147# CONFIG_EXT2_FS_XIP is not set
1148CONFIG_EXT3_FS=y 1815CONFIG_EXT3_FS=y
1149CONFIG_EXT3_FS_XATTR=y 1816CONFIG_EXT3_FS_XATTR=y
1150CONFIG_EXT3_FS_POSIX_ACL=y 1817CONFIG_EXT3_FS_POSIX_ACL=y
1151# CONFIG_EXT3_FS_SECURITY is not set 1818CONFIG_EXT3_FS_SECURITY=y
1152# CONFIG_EXT4DEV_FS is not set 1819# CONFIG_EXT4DEV_FS is not set
1153CONFIG_JBD=y 1820CONFIG_JBD=y
1154# CONFIG_JBD_DEBUG is not set 1821# CONFIG_JBD_DEBUG is not set
1155CONFIG_FS_MBCACHE=y 1822CONFIG_FS_MBCACHE=y
1156CONFIG_REISERFS_FS=y 1823# CONFIG_REISERFS_FS is not set
1157# CONFIG_REISERFS_CHECK is not set
1158# CONFIG_REISERFS_PROC_INFO is not set
1159CONFIG_REISERFS_FS_XATTR=y
1160CONFIG_REISERFS_FS_POSIX_ACL=y
1161# CONFIG_REISERFS_FS_SECURITY is not set
1162# CONFIG_JFS_FS is not set 1824# CONFIG_JFS_FS is not set
1163CONFIG_FS_POSIX_ACL=y 1825CONFIG_FS_POSIX_ACL=y
1164# CONFIG_XFS_FS is not set 1826# CONFIG_XFS_FS is not set
1165# CONFIG_GFS2_FS is not set 1827# CONFIG_GFS2_FS is not set
1166# CONFIG_OCFS2_FS is not set 1828# CONFIG_OCFS2_FS is not set
1167# CONFIG_MINIX_FS is not set 1829CONFIG_DNOTIFY=y
1168# CONFIG_ROMFS_FS is not set
1169CONFIG_INOTIFY=y 1830CONFIG_INOTIFY=y
1170CONFIG_INOTIFY_USER=y 1831CONFIG_INOTIFY_USER=y
1171# CONFIG_QUOTA is not set 1832CONFIG_QUOTA=y
1172CONFIG_DNOTIFY=y 1833CONFIG_QUOTA_NETLINK_INTERFACE=y
1834# CONFIG_PRINT_QUOTA_WARNING is not set
1835# CONFIG_QFMT_V1 is not set
1836CONFIG_QFMT_V2=y
1837CONFIG_QUOTACTL=y
1173# CONFIG_AUTOFS_FS is not set 1838# CONFIG_AUTOFS_FS is not set
1174CONFIG_AUTOFS4_FS=y 1839CONFIG_AUTOFS4_FS=y
1175# CONFIG_FUSE_FS is not set 1840# CONFIG_FUSE_FS is not set
@@ -1180,7 +1845,7 @@ CONFIG_GENERIC_ACL=y
1180# 1845#
1181CONFIG_ISO9660_FS=y 1846CONFIG_ISO9660_FS=y
1182CONFIG_JOLIET=y 1847CONFIG_JOLIET=y
1183# CONFIG_ZISOFS is not set 1848CONFIG_ZISOFS=y
1184# CONFIG_UDF_FS is not set 1849# CONFIG_UDF_FS is not set
1185 1850
1186# 1851#
@@ -1198,13 +1863,13 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
1198# 1863#
1199CONFIG_PROC_FS=y 1864CONFIG_PROC_FS=y
1200CONFIG_PROC_KCORE=y 1865CONFIG_PROC_KCORE=y
1866CONFIG_PROC_VMCORE=y
1201CONFIG_PROC_SYSCTL=y 1867CONFIG_PROC_SYSCTL=y
1202CONFIG_SYSFS=y 1868CONFIG_SYSFS=y
1203CONFIG_TMPFS=y 1869CONFIG_TMPFS=y
1204CONFIG_TMPFS_POSIX_ACL=y 1870CONFIG_TMPFS_POSIX_ACL=y
1205CONFIG_HUGETLBFS=y 1871CONFIG_HUGETLBFS=y
1206CONFIG_HUGETLB_PAGE=y 1872CONFIG_HUGETLB_PAGE=y
1207CONFIG_RAMFS=y
1208# CONFIG_CONFIGFS_FS is not set 1873# CONFIG_CONFIGFS_FS is not set
1209 1874
1210# 1875#
@@ -1212,6 +1877,7 @@ CONFIG_RAMFS=y
1212# 1877#
1213# CONFIG_ADFS_FS is not set 1878# CONFIG_ADFS_FS is not set
1214# CONFIG_AFFS_FS is not set 1879# CONFIG_AFFS_FS is not set
1880# CONFIG_ECRYPT_FS is not set
1215# CONFIG_HFS_FS is not set 1881# CONFIG_HFS_FS is not set
1216# CONFIG_HFSPLUS_FS is not set 1882# CONFIG_HFSPLUS_FS is not set
1217# CONFIG_BEFS_FS is not set 1883# CONFIG_BEFS_FS is not set
@@ -1219,33 +1885,15 @@ CONFIG_RAMFS=y
1219# CONFIG_EFS_FS is not set 1885# CONFIG_EFS_FS is not set
1220# CONFIG_CRAMFS is not set 1886# CONFIG_CRAMFS is not set
1221# CONFIG_VXFS_FS is not set 1887# CONFIG_VXFS_FS is not set
1888# CONFIG_MINIX_FS is not set
1222# CONFIG_HPFS_FS is not set 1889# CONFIG_HPFS_FS is not set
1223# CONFIG_QNX4FS_FS is not set 1890# CONFIG_QNX4FS_FS is not set
1891# CONFIG_ROMFS_FS is not set
1224# CONFIG_SYSV_FS is not set 1892# CONFIG_SYSV_FS is not set
1225# CONFIG_UFS_FS is not set 1893# CONFIG_UFS_FS is not set
1226 1894CONFIG_NETWORK_FILESYSTEMS=y
1227# 1895# CONFIG_NFS_FS is not set
1228# Network File Systems 1896# CONFIG_NFSD is not set
1229#
1230CONFIG_NFS_FS=y
1231CONFIG_NFS_V3=y
1232# CONFIG_NFS_V3_ACL is not set
1233# CONFIG_NFS_V4 is not set
1234# CONFIG_NFS_DIRECTIO is not set
1235CONFIG_NFSD=y
1236CONFIG_NFSD_V3=y
1237# CONFIG_NFSD_V3_ACL is not set
1238# CONFIG_NFSD_V4 is not set
1239CONFIG_NFSD_TCP=y
1240CONFIG_ROOT_NFS=y
1241CONFIG_LOCKD=y
1242CONFIG_LOCKD_V4=y
1243CONFIG_EXPORTFS=y
1244CONFIG_NFS_COMMON=y
1245CONFIG_SUNRPC=y
1246# CONFIG_SUNRPC_BIND34 is not set
1247# CONFIG_RPCSEC_GSS_KRB5 is not set
1248# CONFIG_RPCSEC_GSS_SPKM3 is not set
1249# CONFIG_SMB_FS is not set 1897# CONFIG_SMB_FS is not set
1250# CONFIG_CIFS is not set 1898# CONFIG_CIFS is not set
1251# CONFIG_NCP_FS is not set 1899# CONFIG_NCP_FS is not set
@@ -1255,14 +1903,26 @@ CONFIG_SUNRPC=y
1255# 1903#
1256# Partition Types 1904# Partition Types
1257# 1905#
1258# CONFIG_PARTITION_ADVANCED is not set 1906CONFIG_PARTITION_ADVANCED=y
1907# CONFIG_ACORN_PARTITION is not set
1908CONFIG_OSF_PARTITION=y
1909CONFIG_AMIGA_PARTITION=y
1910# CONFIG_ATARI_PARTITION is not set
1911CONFIG_MAC_PARTITION=y
1259CONFIG_MSDOS_PARTITION=y 1912CONFIG_MSDOS_PARTITION=y
1260 1913CONFIG_BSD_DISKLABEL=y
1261# 1914CONFIG_MINIX_SUBPARTITION=y
1262# Native Language Support 1915CONFIG_SOLARIS_X86_PARTITION=y
1263# 1916CONFIG_UNIXWARE_DISKLABEL=y
1917# CONFIG_LDM_PARTITION is not set
1918CONFIG_SGI_PARTITION=y
1919# CONFIG_ULTRIX_PARTITION is not set
1920CONFIG_SUN_PARTITION=y
1921CONFIG_KARMA_PARTITION=y
1922CONFIG_EFI_PARTITION=y
1923# CONFIG_SYSV68_PARTITION is not set
1264CONFIG_NLS=y 1924CONFIG_NLS=y
1265CONFIG_NLS_DEFAULT="iso8859-1" 1925CONFIG_NLS_DEFAULT="utf8"
1266CONFIG_NLS_CODEPAGE_437=y 1926CONFIG_NLS_CODEPAGE_437=y
1267# CONFIG_NLS_CODEPAGE_737 is not set 1927# CONFIG_NLS_CODEPAGE_737 is not set
1268# CONFIG_NLS_CODEPAGE_775 is not set 1928# CONFIG_NLS_CODEPAGE_775 is not set
@@ -1297,40 +1957,33 @@ CONFIG_NLS_ISO8859_1=y
1297# CONFIG_NLS_ISO8859_9 is not set 1957# CONFIG_NLS_ISO8859_9 is not set
1298# CONFIG_NLS_ISO8859_13 is not set 1958# CONFIG_NLS_ISO8859_13 is not set
1299# CONFIG_NLS_ISO8859_14 is not set 1959# CONFIG_NLS_ISO8859_14 is not set
1300CONFIG_NLS_ISO8859_15=y 1960# CONFIG_NLS_ISO8859_15 is not set
1301# CONFIG_NLS_KOI8_R is not set 1961# CONFIG_NLS_KOI8_R is not set
1302# CONFIG_NLS_KOI8_U is not set 1962# CONFIG_NLS_KOI8_U is not set
1303CONFIG_NLS_UTF8=y 1963CONFIG_NLS_UTF8=y
1304
1305#
1306# Distributed Lock Manager
1307#
1308# CONFIG_DLM is not set 1964# CONFIG_DLM is not set
1309 1965
1310# 1966#
1311# Instrumentation Support
1312#
1313CONFIG_PROFILING=y
1314CONFIG_OPROFILE=y
1315CONFIG_KPROBES=y
1316
1317#
1318# Kernel hacking 1967# Kernel hacking
1319# 1968#
1320CONFIG_TRACE_IRQFLAGS_SUPPORT=y 1969CONFIG_TRACE_IRQFLAGS_SUPPORT=y
1321# CONFIG_PRINTK_TIME is not set 1970# CONFIG_PRINTK_TIME is not set
1971# CONFIG_ENABLE_WARN_DEPRECATED is not set
1322# CONFIG_ENABLE_MUST_CHECK is not set 1972# CONFIG_ENABLE_MUST_CHECK is not set
1973CONFIG_FRAME_WARN=2048
1323CONFIG_MAGIC_SYSRQ=y 1974CONFIG_MAGIC_SYSRQ=y
1324CONFIG_UNUSED_SYMBOLS=y 1975# CONFIG_UNUSED_SYMBOLS is not set
1325CONFIG_DEBUG_FS=y 1976CONFIG_DEBUG_FS=y
1326# CONFIG_HEADERS_CHECK is not set 1977# CONFIG_HEADERS_CHECK is not set
1327CONFIG_DEBUG_KERNEL=y 1978CONFIG_DEBUG_KERNEL=y
1328# CONFIG_DEBUG_SHIRQ is not set 1979# CONFIG_DEBUG_SHIRQ is not set
1329CONFIG_DETECT_SOFTLOCKUP=y 1980# CONFIG_DETECT_SOFTLOCKUP is not set
1330# CONFIG_SCHED_DEBUG is not set 1981# CONFIG_SCHED_DEBUG is not set
1331# CONFIG_SCHEDSTATS is not set 1982CONFIG_SCHEDSTATS=y
1332CONFIG_TIMER_STATS=y 1983CONFIG_TIMER_STATS=y
1333# CONFIG_DEBUG_SLAB is not set 1984# CONFIG_DEBUG_OBJECTS is not set
1985# CONFIG_SLUB_DEBUG_ON is not set
1986# CONFIG_SLUB_STATS is not set
1334# CONFIG_DEBUG_RT_MUTEXES is not set 1987# CONFIG_DEBUG_RT_MUTEXES is not set
1335# CONFIG_RT_MUTEX_TESTER is not set 1988# CONFIG_RT_MUTEX_TESTER is not set
1336# CONFIG_DEBUG_SPINLOCK is not set 1989# CONFIG_DEBUG_SPINLOCK is not set
@@ -1344,28 +1997,162 @@ CONFIG_TIMER_STATS=y
1344CONFIG_DEBUG_BUGVERBOSE=y 1997CONFIG_DEBUG_BUGVERBOSE=y
1345# CONFIG_DEBUG_INFO is not set 1998# CONFIG_DEBUG_INFO is not set
1346# CONFIG_DEBUG_VM is not set 1999# CONFIG_DEBUG_VM is not set
2000# CONFIG_DEBUG_WRITECOUNT is not set
1347# CONFIG_DEBUG_LIST is not set 2001# CONFIG_DEBUG_LIST is not set
1348# CONFIG_FRAME_POINTER is not set 2002# CONFIG_DEBUG_SG is not set
1349CONFIG_OPTIMIZE_INLINING=y 2003CONFIG_FRAME_POINTER=y
2004# CONFIG_BOOT_PRINTK_DELAY is not set
1350# CONFIG_RCU_TORTURE_TEST is not set 2005# CONFIG_RCU_TORTURE_TEST is not set
2006# CONFIG_KPROBES_SANITY_TEST is not set
2007# CONFIG_BACKTRACE_SELF_TEST is not set
1351# CONFIG_LKDTM is not set 2008# CONFIG_LKDTM is not set
1352# CONFIG_FAULT_INJECTION is not set 2009# CONFIG_FAULT_INJECTION is not set
1353# CONFIG_DEBUG_RODATA is not set 2010# CONFIG_LATENCYTOP is not set
1354# CONFIG_IOMMU_DEBUG is not set 2011CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
2012# CONFIG_SAMPLES is not set
2013# CONFIG_KGDB is not set
2014CONFIG_HAVE_ARCH_KGDB=y
2015# CONFIG_NONPROMISC_DEVMEM is not set
2016CONFIG_EARLY_PRINTK=y
1355CONFIG_DEBUG_STACKOVERFLOW=y 2017CONFIG_DEBUG_STACKOVERFLOW=y
1356# CONFIG_DEBUG_STACK_USAGE is not set 2018CONFIG_DEBUG_STACK_USAGE=y
2019# CONFIG_DEBUG_PAGEALLOC is not set
2020# CONFIG_DEBUG_PER_CPU_MAPS is not set
2021# CONFIG_X86_PTDUMP is not set
2022CONFIG_DEBUG_RODATA=y
2023# CONFIG_DIRECT_GBPAGES is not set
2024# CONFIG_DEBUG_RODATA_TEST is not set
2025CONFIG_DEBUG_NX_TEST=m
2026CONFIG_X86_MPPARSE=y
2027# CONFIG_IOMMU_DEBUG is not set
2028CONFIG_IO_DELAY_TYPE_0X80=0
2029CONFIG_IO_DELAY_TYPE_0XED=1
2030CONFIG_IO_DELAY_TYPE_UDELAY=2
2031CONFIG_IO_DELAY_TYPE_NONE=3
2032CONFIG_IO_DELAY_0X80=y
2033# CONFIG_IO_DELAY_0XED is not set
2034# CONFIG_IO_DELAY_UDELAY is not set
2035# CONFIG_IO_DELAY_NONE is not set
2036CONFIG_DEFAULT_IO_DELAY_TYPE=0
2037CONFIG_DEBUG_BOOT_PARAMS=y
2038# CONFIG_CPA_DEBUG is not set
1357 2039
1358# 2040#
1359# Security options 2041# Security options
1360# 2042#
1361# CONFIG_KEYS is not set 2043CONFIG_KEYS=y
1362# CONFIG_SECURITY is not set 2044CONFIG_KEYS_DEBUG_PROC_KEYS=y
1363# CONFIG_CRYPTO is not set 2045CONFIG_SECURITY=y
2046CONFIG_SECURITY_NETWORK=y
2047# CONFIG_SECURITY_NETWORK_XFRM is not set
2048CONFIG_SECURITY_CAPABILITIES=y
2049CONFIG_SECURITY_FILE_CAPABILITIES=y
2050# CONFIG_SECURITY_ROOTPLUG is not set
2051CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=65536
2052CONFIG_SECURITY_SELINUX=y
2053CONFIG_SECURITY_SELINUX_BOOTPARAM=y
2054CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
2055CONFIG_SECURITY_SELINUX_DISABLE=y
2056CONFIG_SECURITY_SELINUX_DEVELOP=y
2057CONFIG_SECURITY_SELINUX_AVC_STATS=y
2058CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
2059# CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT is not set
2060# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
2061# CONFIG_SECURITY_SMACK is not set
2062CONFIG_CRYPTO=y
2063
2064#
2065# Crypto core or helper
2066#
2067CONFIG_CRYPTO_ALGAPI=y
2068CONFIG_CRYPTO_AEAD=y
2069CONFIG_CRYPTO_BLKCIPHER=y
2070CONFIG_CRYPTO_HASH=y
2071CONFIG_CRYPTO_MANAGER=y
2072# CONFIG_CRYPTO_GF128MUL is not set
2073# CONFIG_CRYPTO_NULL is not set
2074# CONFIG_CRYPTO_CRYPTD is not set
2075CONFIG_CRYPTO_AUTHENC=y
2076# CONFIG_CRYPTO_TEST is not set
2077
2078#
2079# Authenticated Encryption with Associated Data
2080#
2081# CONFIG_CRYPTO_CCM is not set
2082# CONFIG_CRYPTO_GCM is not set
2083# CONFIG_CRYPTO_SEQIV is not set
2084
2085#
2086# Block modes
2087#
2088CONFIG_CRYPTO_CBC=y
2089# CONFIG_CRYPTO_CTR is not set
2090# CONFIG_CRYPTO_CTS is not set
2091CONFIG_CRYPTO_ECB=y
2092# CONFIG_CRYPTO_LRW is not set
2093# CONFIG_CRYPTO_PCBC is not set
2094# CONFIG_CRYPTO_XTS is not set
2095
2096#
2097# Hash modes
2098#
2099CONFIG_CRYPTO_HMAC=y
2100# CONFIG_CRYPTO_XCBC is not set
2101
2102#
2103# Digest
2104#
2105# CONFIG_CRYPTO_CRC32C is not set
2106# CONFIG_CRYPTO_MD4 is not set
2107CONFIG_CRYPTO_MD5=y
2108# CONFIG_CRYPTO_MICHAEL_MIC is not set
2109CONFIG_CRYPTO_SHA1=y
2110# CONFIG_CRYPTO_SHA256 is not set
2111# CONFIG_CRYPTO_SHA512 is not set
2112# CONFIG_CRYPTO_TGR192 is not set
2113# CONFIG_CRYPTO_WP512 is not set
2114
2115#
2116# Ciphers
2117#
2118CONFIG_CRYPTO_AES=y
2119# CONFIG_CRYPTO_AES_X86_64 is not set
2120# CONFIG_CRYPTO_ANUBIS is not set
2121CONFIG_CRYPTO_ARC4=y
2122# CONFIG_CRYPTO_BLOWFISH is not set
2123# CONFIG_CRYPTO_CAMELLIA is not set
2124# CONFIG_CRYPTO_CAST5 is not set
2125# CONFIG_CRYPTO_CAST6 is not set
2126CONFIG_CRYPTO_DES=y
2127# CONFIG_CRYPTO_FCRYPT is not set
2128# CONFIG_CRYPTO_KHAZAD is not set
2129# CONFIG_CRYPTO_SALSA20 is not set
2130# CONFIG_CRYPTO_SALSA20_X86_64 is not set
2131# CONFIG_CRYPTO_SEED is not set
2132# CONFIG_CRYPTO_SERPENT is not set
2133# CONFIG_CRYPTO_TEA is not set
2134# CONFIG_CRYPTO_TWOFISH is not set
2135# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
2136
2137#
2138# Compression
2139#
2140# CONFIG_CRYPTO_DEFLATE is not set
2141# CONFIG_CRYPTO_LZO is not set
2142CONFIG_CRYPTO_HW=y
2143# CONFIG_CRYPTO_DEV_HIFN_795X is not set
2144CONFIG_HAVE_KVM=y
2145CONFIG_VIRTUALIZATION=y
2146# CONFIG_KVM is not set
2147# CONFIG_VIRTIO_PCI is not set
2148# CONFIG_VIRTIO_BALLOON is not set
1364 2149
1365# 2150#
1366# Library routines 2151# Library routines
1367# 2152#
1368CONFIG_BITREVERSE=y 2153CONFIG_BITREVERSE=y
2154CONFIG_GENERIC_FIND_FIRST_BIT=y
2155CONFIG_GENERIC_FIND_NEXT_BIT=y
1369# CONFIG_CRC_CCITT is not set 2156# CONFIG_CRC_CCITT is not set
1370# CONFIG_CRC16 is not set 2157# CONFIG_CRC16 is not set
1371# CONFIG_CRC_ITU_T is not set 2158# CONFIG_CRC_ITU_T is not set
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index b5e329da166c..20371d0635e4 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -61,6 +61,19 @@
61 CFI_UNDEFINED r15 61 CFI_UNDEFINED r15
62 .endm 62 .endm
63 63
64#ifdef CONFIG_PARAVIRT
65ENTRY(native_usergs_sysret32)
66 swapgs
67 sysretl
68ENDPROC(native_usergs_sysret32)
69
70ENTRY(native_irq_enable_sysexit)
71 swapgs
72 sti
73 sysexit
74ENDPROC(native_irq_enable_sysexit)
75#endif
76
64/* 77/*
65 * 32bit SYSENTER instruction entry. 78 * 32bit SYSENTER instruction entry.
66 * 79 *
@@ -85,14 +98,14 @@ ENTRY(ia32_sysenter_target)
85 CFI_SIGNAL_FRAME 98 CFI_SIGNAL_FRAME
86 CFI_DEF_CFA rsp,0 99 CFI_DEF_CFA rsp,0
87 CFI_REGISTER rsp,rbp 100 CFI_REGISTER rsp,rbp
88 swapgs 101 SWAPGS_UNSAFE_STACK
89 movq %gs:pda_kernelstack, %rsp 102 movq %gs:pda_kernelstack, %rsp
90 addq $(PDA_STACKOFFSET),%rsp 103 addq $(PDA_STACKOFFSET),%rsp
91 /* 104 /*
92 * No need to follow this irqs on/off section: the syscall 105 * No need to follow this irqs on/off section: the syscall
93 * disabled irqs, here we enable it straight after entry: 106 * disabled irqs, here we enable it straight after entry:
94 */ 107 */
95 sti 108 ENABLE_INTERRUPTS(CLBR_NONE)
96 movl %ebp,%ebp /* zero extension */ 109 movl %ebp,%ebp /* zero extension */
97 pushq $__USER32_DS 110 pushq $__USER32_DS
98 CFI_ADJUST_CFA_OFFSET 8 111 CFI_ADJUST_CFA_OFFSET 8
@@ -103,7 +116,7 @@ ENTRY(ia32_sysenter_target)
103 pushfq 116 pushfq
104 CFI_ADJUST_CFA_OFFSET 8 117 CFI_ADJUST_CFA_OFFSET 8
105 /*CFI_REL_OFFSET rflags,0*/ 118 /*CFI_REL_OFFSET rflags,0*/
106 movl 8*3-THREAD_SIZE+threadinfo_sysenter_return(%rsp), %r10d 119 movl 8*3-THREAD_SIZE+TI_sysenter_return(%rsp), %r10d
107 CFI_REGISTER rip,r10 120 CFI_REGISTER rip,r10
108 pushq $__USER32_CS 121 pushq $__USER32_CS
109 CFI_ADJUST_CFA_OFFSET 8 122 CFI_ADJUST_CFA_OFFSET 8
@@ -123,8 +136,9 @@ ENTRY(ia32_sysenter_target)
123 .quad 1b,ia32_badarg 136 .quad 1b,ia32_badarg
124 .previous 137 .previous
125 GET_THREAD_INFO(%r10) 138 GET_THREAD_INFO(%r10)
126 orl $TS_COMPAT,threadinfo_status(%r10) 139 orl $TS_COMPAT,TI_status(%r10)
127 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP),threadinfo_flags(%r10) 140 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
141 TI_flags(%r10)
128 CFI_REMEMBER_STATE 142 CFI_REMEMBER_STATE
129 jnz sysenter_tracesys 143 jnz sysenter_tracesys
130sysenter_do_call: 144sysenter_do_call:
@@ -134,11 +148,11 @@ sysenter_do_call:
134 call *ia32_sys_call_table(,%rax,8) 148 call *ia32_sys_call_table(,%rax,8)
135 movq %rax,RAX-ARGOFFSET(%rsp) 149 movq %rax,RAX-ARGOFFSET(%rsp)
136 GET_THREAD_INFO(%r10) 150 GET_THREAD_INFO(%r10)
137 cli 151 DISABLE_INTERRUPTS(CLBR_NONE)
138 TRACE_IRQS_OFF 152 TRACE_IRQS_OFF
139 testl $_TIF_ALLWORK_MASK,threadinfo_flags(%r10) 153 testl $_TIF_ALLWORK_MASK,TI_flags(%r10)
140 jnz int_ret_from_sys_call 154 jnz int_ret_from_sys_call
141 andl $~TS_COMPAT,threadinfo_status(%r10) 155 andl $~TS_COMPAT,TI_status(%r10)
142 /* clear IF, that popfq doesn't enable interrupts early */ 156 /* clear IF, that popfq doesn't enable interrupts early */
143 andl $~0x200,EFLAGS-R11(%rsp) 157 andl $~0x200,EFLAGS-R11(%rsp)
144 movl RIP-R11(%rsp),%edx /* User %eip */ 158 movl RIP-R11(%rsp),%edx /* User %eip */
@@ -151,10 +165,7 @@ sysenter_do_call:
151 CFI_ADJUST_CFA_OFFSET -8 165 CFI_ADJUST_CFA_OFFSET -8
152 CFI_REGISTER rsp,rcx 166 CFI_REGISTER rsp,rcx
153 TRACE_IRQS_ON 167 TRACE_IRQS_ON
154 swapgs 168 ENABLE_INTERRUPTS_SYSEXIT32
155 sti /* sti only takes effect after the next instruction */
156 /* sysexit */
157 .byte 0xf, 0x35
158 169
159sysenter_tracesys: 170sysenter_tracesys:
160 CFI_RESTORE_STATE 171 CFI_RESTORE_STATE
@@ -200,7 +211,7 @@ ENTRY(ia32_cstar_target)
200 CFI_DEF_CFA rsp,PDA_STACKOFFSET 211 CFI_DEF_CFA rsp,PDA_STACKOFFSET
201 CFI_REGISTER rip,rcx 212 CFI_REGISTER rip,rcx
202 /*CFI_REGISTER rflags,r11*/ 213 /*CFI_REGISTER rflags,r11*/
203 swapgs 214 SWAPGS_UNSAFE_STACK
204 movl %esp,%r8d 215 movl %esp,%r8d
205 CFI_REGISTER rsp,r8 216 CFI_REGISTER rsp,r8
206 movq %gs:pda_kernelstack,%rsp 217 movq %gs:pda_kernelstack,%rsp
@@ -208,7 +219,7 @@ ENTRY(ia32_cstar_target)
208 * No need to follow this irqs on/off section: the syscall 219 * No need to follow this irqs on/off section: the syscall
209 * disabled irqs and here we enable it straight after entry: 220 * disabled irqs and here we enable it straight after entry:
210 */ 221 */
211 sti 222 ENABLE_INTERRUPTS(CLBR_NONE)
212 SAVE_ARGS 8,1,1 223 SAVE_ARGS 8,1,1
213 movl %eax,%eax /* zero extension */ 224 movl %eax,%eax /* zero extension */
214 movq %rax,ORIG_RAX-ARGOFFSET(%rsp) 225 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
@@ -230,8 +241,9 @@ ENTRY(ia32_cstar_target)
230 .quad 1b,ia32_badarg 241 .quad 1b,ia32_badarg
231 .previous 242 .previous
232 GET_THREAD_INFO(%r10) 243 GET_THREAD_INFO(%r10)
233 orl $TS_COMPAT,threadinfo_status(%r10) 244 orl $TS_COMPAT,TI_status(%r10)
234 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP),threadinfo_flags(%r10) 245 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
246 TI_flags(%r10)
235 CFI_REMEMBER_STATE 247 CFI_REMEMBER_STATE
236 jnz cstar_tracesys 248 jnz cstar_tracesys
237cstar_do_call: 249cstar_do_call:
@@ -241,11 +253,11 @@ cstar_do_call:
241 call *ia32_sys_call_table(,%rax,8) 253 call *ia32_sys_call_table(,%rax,8)
242 movq %rax,RAX-ARGOFFSET(%rsp) 254 movq %rax,RAX-ARGOFFSET(%rsp)
243 GET_THREAD_INFO(%r10) 255 GET_THREAD_INFO(%r10)
244 cli 256 DISABLE_INTERRUPTS(CLBR_NONE)
245 TRACE_IRQS_OFF 257 TRACE_IRQS_OFF
246 testl $_TIF_ALLWORK_MASK,threadinfo_flags(%r10) 258 testl $_TIF_ALLWORK_MASK,TI_flags(%r10)
247 jnz int_ret_from_sys_call 259 jnz int_ret_from_sys_call
248 andl $~TS_COMPAT,threadinfo_status(%r10) 260 andl $~TS_COMPAT,TI_status(%r10)
249 RESTORE_ARGS 1,-ARG_SKIP,1,1,1 261 RESTORE_ARGS 1,-ARG_SKIP,1,1,1
250 movl RIP-ARGOFFSET(%rsp),%ecx 262 movl RIP-ARGOFFSET(%rsp),%ecx
251 CFI_REGISTER rip,rcx 263 CFI_REGISTER rip,rcx
@@ -254,8 +266,7 @@ cstar_do_call:
254 TRACE_IRQS_ON 266 TRACE_IRQS_ON
255 movl RSP-ARGOFFSET(%rsp),%esp 267 movl RSP-ARGOFFSET(%rsp),%esp
256 CFI_RESTORE rsp 268 CFI_RESTORE rsp
257 swapgs 269 USERGS_SYSRET32
258 sysretl
259 270
260cstar_tracesys: 271cstar_tracesys:
261 CFI_RESTORE_STATE 272 CFI_RESTORE_STATE
@@ -310,12 +321,12 @@ ENTRY(ia32_syscall)
310 /*CFI_REL_OFFSET rflags,EFLAGS-RIP*/ 321 /*CFI_REL_OFFSET rflags,EFLAGS-RIP*/
311 /*CFI_REL_OFFSET cs,CS-RIP*/ 322 /*CFI_REL_OFFSET cs,CS-RIP*/
312 CFI_REL_OFFSET rip,RIP-RIP 323 CFI_REL_OFFSET rip,RIP-RIP
313 swapgs 324 SWAPGS
314 /* 325 /*
315 * No need to follow this irqs on/off section: the syscall 326 * No need to follow this irqs on/off section: the syscall
316 * disabled irqs and here we enable it straight after entry: 327 * disabled irqs and here we enable it straight after entry:
317 */ 328 */
318 sti 329 ENABLE_INTERRUPTS(CLBR_NONE)
319 movl %eax,%eax 330 movl %eax,%eax
320 pushq %rax 331 pushq %rax
321 CFI_ADJUST_CFA_OFFSET 8 332 CFI_ADJUST_CFA_OFFSET 8
@@ -324,8 +335,9 @@ ENTRY(ia32_syscall)
324 this could be a problem. */ 335 this could be a problem. */
325 SAVE_ARGS 0,0,1 336 SAVE_ARGS 0,0,1
326 GET_THREAD_INFO(%r10) 337 GET_THREAD_INFO(%r10)
327 orl $TS_COMPAT,threadinfo_status(%r10) 338 orl $TS_COMPAT,TI_status(%r10)
328 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP),threadinfo_flags(%r10) 339 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
340 TI_flags(%r10)
329 jnz ia32_tracesys 341 jnz ia32_tracesys
330ia32_do_syscall: 342ia32_do_syscall:
331 cmpl $(IA32_NR_syscalls-1),%eax 343 cmpl $(IA32_NR_syscalls-1),%eax
@@ -370,13 +382,11 @@ quiet_ni_syscall:
370 PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn, %rdi 382 PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn, %rdi
371 PTREGSCALL stub32_sigreturn, sys32_sigreturn, %rdi 383 PTREGSCALL stub32_sigreturn, sys32_sigreturn, %rdi
372 PTREGSCALL stub32_sigaltstack, sys32_sigaltstack, %rdx 384 PTREGSCALL stub32_sigaltstack, sys32_sigaltstack, %rdx
373 PTREGSCALL stub32_sigsuspend, sys32_sigsuspend, %rcx
374 PTREGSCALL stub32_execve, sys32_execve, %rcx 385 PTREGSCALL stub32_execve, sys32_execve, %rcx
375 PTREGSCALL stub32_fork, sys_fork, %rdi 386 PTREGSCALL stub32_fork, sys_fork, %rdi
376 PTREGSCALL stub32_clone, sys32_clone, %rdx 387 PTREGSCALL stub32_clone, sys32_clone, %rdx
377 PTREGSCALL stub32_vfork, sys_vfork, %rdi 388 PTREGSCALL stub32_vfork, sys_vfork, %rdi
378 PTREGSCALL stub32_iopl, sys_iopl, %rsi 389 PTREGSCALL stub32_iopl, sys_iopl, %rsi
379 PTREGSCALL stub32_rt_sigsuspend, sys_rt_sigsuspend, %rdx
380 390
381ENTRY(ia32_ptregs_common) 391ENTRY(ia32_ptregs_common)
382 popq %r11 392 popq %r11
@@ -476,7 +486,7 @@ ia32_sys_call_table:
476 .quad sys_ssetmask 486 .quad sys_ssetmask
477 .quad sys_setreuid16 /* 70 */ 487 .quad sys_setreuid16 /* 70 */
478 .quad sys_setregid16 488 .quad sys_setregid16
479 .quad stub32_sigsuspend 489 .quad sys32_sigsuspend
480 .quad compat_sys_sigpending 490 .quad compat_sys_sigpending
481 .quad sys_sethostname 491 .quad sys_sethostname
482 .quad compat_sys_setrlimit /* 75 */ 492 .quad compat_sys_setrlimit /* 75 */
@@ -583,7 +593,7 @@ ia32_sys_call_table:
583 .quad sys32_rt_sigpending 593 .quad sys32_rt_sigpending
584 .quad compat_sys_rt_sigtimedwait 594 .quad compat_sys_rt_sigtimedwait
585 .quad sys32_rt_sigqueueinfo 595 .quad sys32_rt_sigqueueinfo
586 .quad stub32_rt_sigsuspend 596 .quad sys_rt_sigsuspend
587 .quad sys32_pread /* 180 */ 597 .quad sys32_pread /* 180 */
588 .quad sys32_pwrite 598 .quad sys32_pwrite
589 .quad sys_chown16 599 .quad sys_chown16
diff --git a/arch/x86/kernel/.gitignore b/arch/x86/kernel/.gitignore
index 4ea38a39aed4..08f4fd731469 100644
--- a/arch/x86/kernel/.gitignore
+++ b/arch/x86/kernel/.gitignore
@@ -1,2 +1,3 @@
1vsyscall.lds 1vsyscall.lds
2vsyscall_32.lds 2vsyscall_32.lds
3vmlinux.lds
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 5e618c3b4720..da140611bb57 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -2,10 +2,16 @@
2# Makefile for the linux kernel. 2# Makefile for the linux kernel.
3# 3#
4 4
5extra-y := head_$(BITS).o head$(BITS).o init_task.o vmlinux.lds 5extra-y := head_$(BITS).o head$(BITS).o head.o init_task.o vmlinux.lds
6 6
7CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE) 7CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
8 8
9ifdef CONFIG_FTRACE
10# Do not profile debug utilities
11CFLAGS_REMOVE_tsc.o = -pg
12CFLAGS_REMOVE_rtc.o = -pg
13endif
14
9# 15#
10# vsyscalls (which work on the user stack) should have 16# vsyscalls (which work on the user stack) should have
11# no stack-protector checks: 17# no stack-protector checks:
@@ -13,20 +19,21 @@ CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
13nostackp := $(call cc-option, -fno-stack-protector) 19nostackp := $(call cc-option, -fno-stack-protector)
14CFLAGS_vsyscall_64.o := $(PROFILING) -g0 $(nostackp) 20CFLAGS_vsyscall_64.o := $(PROFILING) -g0 $(nostackp)
15CFLAGS_hpet.o := $(nostackp) 21CFLAGS_hpet.o := $(nostackp)
16CFLAGS_tsc_64.o := $(nostackp) 22CFLAGS_tsc.o := $(nostackp)
17 23
18obj-y := process_$(BITS).o signal_$(BITS).o entry_$(BITS).o 24obj-y := process_$(BITS).o signal_$(BITS).o entry_$(BITS).o
19obj-y += traps_$(BITS).o irq_$(BITS).o 25obj-y += traps_$(BITS).o irq_$(BITS).o
20obj-y += time_$(BITS).o ioport.o ldt.o 26obj-y += time_$(BITS).o ioport.o ldt.o
21obj-y += setup_$(BITS).o i8259_$(BITS).o setup.o 27obj-y += setup.o i8259.o irqinit_$(BITS).o setup_percpu.o
28obj-$(CONFIG_X86_VISWS) += visws_quirks.o
29obj-$(CONFIG_X86_32) += probe_roms_32.o
22obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o 30obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
23obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o 31obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
24obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o setup64.o 32obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o
25obj-y += bootflag.o e820_$(BITS).o 33obj-y += bootflag.o e820.o
26obj-y += pci-dma.o quirks.o i8237.o topology.o kdebugfs.o 34obj-y += pci-dma.o quirks.o i8237.o topology.o kdebugfs.o
27obj-y += alternative.o i8253.o pci-nommu.o 35obj-y += alternative.o i8253.o pci-nommu.o
28obj-$(CONFIG_X86_64) += bugs_64.o 36obj-y += tsc.o io_delay.o rtc.o
29obj-y += tsc_$(BITS).o io_delay.o rtc.o
30 37
31obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o 38obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o
32obj-y += process.o 39obj-y += process.o
@@ -53,9 +60,10 @@ obj-$(CONFIG_X86_32_SMP) += smpcommon.o
53obj-$(CONFIG_X86_64_SMP) += tsc_sync.o smpcommon.o 60obj-$(CONFIG_X86_64_SMP) += tsc_sync.o smpcommon.o
54obj-$(CONFIG_X86_TRAMPOLINE) += trampoline_$(BITS).o 61obj-$(CONFIG_X86_TRAMPOLINE) += trampoline_$(BITS).o
55obj-$(CONFIG_X86_MPPARSE) += mpparse.o 62obj-$(CONFIG_X86_MPPARSE) += mpparse.o
56obj-$(CONFIG_X86_LOCAL_APIC) += apic_$(BITS).o nmi_$(BITS).o 63obj-$(CONFIG_X86_LOCAL_APIC) += apic_$(BITS).o nmi.o
57obj-$(CONFIG_X86_IO_APIC) += io_apic_$(BITS).o 64obj-$(CONFIG_X86_IO_APIC) += io_apic_$(BITS).o
58obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o 65obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
66obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
59obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o 67obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o
60obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o 68obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o
61obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o 69obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o
@@ -64,7 +72,6 @@ obj-$(CONFIG_X86_SUMMIT_NUMA) += summit_32.o
64obj-y += vsmp_64.o 72obj-y += vsmp_64.o
65obj-$(CONFIG_KPROBES) += kprobes.o 73obj-$(CONFIG_KPROBES) += kprobes.o
66obj-$(CONFIG_MODULES) += module_$(BITS).o 74obj-$(CONFIG_MODULES) += module_$(BITS).o
67obj-$(CONFIG_ACPI_SRAT) += srat_32.o
68obj-$(CONFIG_EFI) += efi.o efi_$(BITS).o efi_stub_$(BITS).o 75obj-$(CONFIG_EFI) += efi.o efi_$(BITS).o efi_stub_$(BITS).o
69obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o 76obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o
70obj-$(CONFIG_KGDB) += kgdb.o 77obj-$(CONFIG_KGDB) += kgdb.o
@@ -82,6 +89,7 @@ obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o
82obj-$(CONFIG_KVM_GUEST) += kvm.o 89obj-$(CONFIG_KVM_GUEST) += kvm.o
83obj-$(CONFIG_KVM_CLOCK) += kvmclock.o 90obj-$(CONFIG_KVM_CLOCK) += kvmclock.o
84obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o 91obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o
92obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
85 93
86obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o 94obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
87 95
@@ -93,12 +101,13 @@ obj-$(CONFIG_OLPC) += olpc.o
93### 101###
94# 64 bit specific files 102# 64 bit specific files
95ifeq ($(CONFIG_X86_64),y) 103ifeq ($(CONFIG_X86_64),y)
96 obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o 104 obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o
97 obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o 105 obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o
98 obj-$(CONFIG_AUDIT) += audit_64.o 106 obj-$(CONFIG_AUDIT) += audit_64.o
99 107
100 obj-$(CONFIG_GART_IOMMU) += pci-gart_64.o aperture_64.o 108 obj-$(CONFIG_GART_IOMMU) += pci-gart_64.o aperture_64.o
101 obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary_64.o tce_64.o 109 obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary_64.o tce_64.o
110 obj-$(CONFIG_AMD_IOMMU) += amd_iommu_init.o amd_iommu.o
102 obj-$(CONFIG_SWIOTLB) += pci-swiotlb_64.o 111 obj-$(CONFIG_SWIOTLB) += pci-swiotlb_64.o
103 112
104 obj-$(CONFIG_PCI_MMCONFIG) += mmconf-fam10h_64.o 113 obj-$(CONFIG_PCI_MMCONFIG) += mmconf-fam10h_64.o
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index c49ebcc6c41e..f489d7a9be92 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -37,6 +37,7 @@
37#include <asm/pgtable.h> 37#include <asm/pgtable.h>
38#include <asm/io_apic.h> 38#include <asm/io_apic.h>
39#include <asm/apic.h> 39#include <asm/apic.h>
40#include <asm/genapic.h>
40#include <asm/io.h> 41#include <asm/io.h>
41#include <asm/mpspec.h> 42#include <asm/mpspec.h>
42#include <asm/smp.h> 43#include <asm/smp.h>
@@ -106,21 +107,6 @@ static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
106 */ 107 */
107enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC; 108enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC;
108 109
109#ifdef CONFIG_X86_64
110
111/* rely on all ACPI tables being in the direct mapping */
112char *__init __acpi_map_table(unsigned long phys_addr, unsigned long size)
113{
114 if (!phys_addr || !size)
115 return NULL;
116
117 if (phys_addr+size <= (max_pfn_mapped << PAGE_SHIFT) + PAGE_SIZE)
118 return __va(phys_addr);
119
120 return NULL;
121}
122
123#else
124 110
125/* 111/*
126 * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, 112 * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END,
@@ -139,11 +125,15 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size)
139 unsigned long base, offset, mapped_size; 125 unsigned long base, offset, mapped_size;
140 int idx; 126 int idx;
141 127
142 if (phys + size < 8 * 1024 * 1024) 128 if (!phys || !size)
129 return NULL;
130
131 if (phys+size <= (max_low_pfn_mapped << PAGE_SHIFT))
143 return __va(phys); 132 return __va(phys);
144 133
145 offset = phys & (PAGE_SIZE - 1); 134 offset = phys & (PAGE_SIZE - 1);
146 mapped_size = PAGE_SIZE - offset; 135 mapped_size = PAGE_SIZE - offset;
136 clear_fixmap(FIX_ACPI_END);
147 set_fixmap(FIX_ACPI_END, phys); 137 set_fixmap(FIX_ACPI_END, phys);
148 base = fix_to_virt(FIX_ACPI_END); 138 base = fix_to_virt(FIX_ACPI_END);
149 139
@@ -155,13 +145,13 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size)
155 if (--idx < FIX_ACPI_BEGIN) 145 if (--idx < FIX_ACPI_BEGIN)
156 return NULL; /* cannot handle this */ 146 return NULL; /* cannot handle this */
157 phys += PAGE_SIZE; 147 phys += PAGE_SIZE;
148 clear_fixmap(idx);
158 set_fixmap(idx, phys); 149 set_fixmap(idx, phys);
159 mapped_size += PAGE_SIZE; 150 mapped_size += PAGE_SIZE;
160 } 151 }
161 152
162 return ((unsigned char *)base + offset); 153 return ((unsigned char *)base + offset);
163} 154}
164#endif
165 155
166#ifdef CONFIG_PCI_MMCONFIG 156#ifdef CONFIG_PCI_MMCONFIG
167/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ 157/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
@@ -242,12 +232,19 @@ static int __init acpi_parse_madt(struct acpi_table_header *table)
242 232
243static void __cpuinit acpi_register_lapic(int id, u8 enabled) 233static void __cpuinit acpi_register_lapic(int id, u8 enabled)
244{ 234{
235 unsigned int ver = 0;
236
245 if (!enabled) { 237 if (!enabled) {
246 ++disabled_cpus; 238 ++disabled_cpus;
247 return; 239 return;
248 } 240 }
249 241
250 generic_processor_info(id, 0); 242#ifdef CONFIG_X86_32
243 if (boot_cpu_physical_apicid != -1U)
244 ver = apic_version[boot_cpu_physical_apicid];
245#endif
246
247 generic_processor_info(id, ver);
251} 248}
252 249
253static int __init 250static int __init
@@ -331,8 +328,6 @@ acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long e
331 328
332#ifdef CONFIG_X86_IO_APIC 329#ifdef CONFIG_X86_IO_APIC
333 330
334struct mp_ioapic_routing mp_ioapic_routing[MAX_IO_APICS];
335
336static int __init 331static int __init
337acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end) 332acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end)
338{ 333{
@@ -507,8 +502,6 @@ int acpi_register_gsi(u32 gsi, int triggering, int polarity)
507 * Make sure all (legacy) PCI IRQs are set as level-triggered. 502 * Make sure all (legacy) PCI IRQs are set as level-triggered.
508 */ 503 */
509 if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { 504 if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) {
510 extern void eisa_set_level_irq(unsigned int irq);
511
512 if (triggering == ACPI_LEVEL_SENSITIVE) 505 if (triggering == ACPI_LEVEL_SENSITIVE)
513 eisa_set_level_irq(gsi); 506 eisa_set_level_irq(gsi);
514 } 507 }
@@ -767,8 +760,13 @@ static void __init acpi_register_lapic_address(unsigned long address)
767 mp_lapic_addr = address; 760 mp_lapic_addr = address;
768 761
769 set_fixmap_nocache(FIX_APIC_BASE, address); 762 set_fixmap_nocache(FIX_APIC_BASE, address);
770 if (boot_cpu_physical_apicid == -1U) 763 if (boot_cpu_physical_apicid == -1U) {
771 boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id()); 764 boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
765#ifdef CONFIG_X86_32
766 apic_version[boot_cpu_physical_apicid] =
767 GET_APIC_VERSION(apic_read(APIC_LVR));
768#endif
769 }
772} 770}
773 771
774static int __init early_acpi_parse_madt_lapic_addr_ovr(void) 772static int __init early_acpi_parse_madt_lapic_addr_ovr(void)
@@ -848,6 +846,364 @@ static int __init acpi_parse_madt_lapic_entries(void)
848#endif /* CONFIG_X86_LOCAL_APIC */ 846#endif /* CONFIG_X86_LOCAL_APIC */
849 847
850#ifdef CONFIG_X86_IO_APIC 848#ifdef CONFIG_X86_IO_APIC
849#define MP_ISA_BUS 0
850
851#ifdef CONFIG_X86_ES7000
852extern int es7000_plat;
853#endif
854
855static struct {
856 int apic_id;
857 int gsi_base;
858 int gsi_end;
859 DECLARE_BITMAP(pin_programmed, MP_MAX_IOAPIC_PIN + 1);
860} mp_ioapic_routing[MAX_IO_APICS];
861
862static int mp_find_ioapic(int gsi)
863{
864 int i = 0;
865
866 /* Find the IOAPIC that manages this GSI. */
867 for (i = 0; i < nr_ioapics; i++) {
868 if ((gsi >= mp_ioapic_routing[i].gsi_base)
869 && (gsi <= mp_ioapic_routing[i].gsi_end))
870 return i;
871 }
872
873 printk(KERN_ERR "ERROR: Unable to locate IOAPIC for GSI %d\n", gsi);
874 return -1;
875}
876
877static u8 __init uniq_ioapic_id(u8 id)
878{
879#ifdef CONFIG_X86_32
880 if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
881 !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
882 return io_apic_get_unique_id(nr_ioapics, id);
883 else
884 return id;
885#else
886 int i;
887 DECLARE_BITMAP(used, 256);
888 bitmap_zero(used, 256);
889 for (i = 0; i < nr_ioapics; i++) {
890 struct mp_config_ioapic *ia = &mp_ioapics[i];
891 __set_bit(ia->mp_apicid, used);
892 }
893 if (!test_bit(id, used))
894 return id;
895 return find_first_zero_bit(used, 256);
896#endif
897}
898
899static int bad_ioapic(unsigned long address)
900{
901 if (nr_ioapics >= MAX_IO_APICS) {
902 printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded "
903 "(found %d)\n", MAX_IO_APICS, nr_ioapics);
904 panic("Recompile kernel with bigger MAX_IO_APICS!\n");
905 }
906 if (!address) {
907 printk(KERN_ERR "WARNING: Bogus (zero) I/O APIC address"
908 " found in table, skipping!\n");
909 return 1;
910 }
911 return 0;
912}
913
914void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
915{
916 int idx = 0;
917
918 if (bad_ioapic(address))
919 return;
920
921 idx = nr_ioapics;
922
923 mp_ioapics[idx].mp_type = MP_IOAPIC;
924 mp_ioapics[idx].mp_flags = MPC_APIC_USABLE;
925 mp_ioapics[idx].mp_apicaddr = address;
926
927 set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
928 mp_ioapics[idx].mp_apicid = uniq_ioapic_id(id);
929#ifdef CONFIG_X86_32
930 mp_ioapics[idx].mp_apicver = io_apic_get_version(idx);
931#else
932 mp_ioapics[idx].mp_apicver = 0;
933#endif
934 /*
935 * Build basic GSI lookup table to facilitate gsi->io_apic lookups
936 * and to prevent reprogramming of IOAPIC pins (PCI GSIs).
937 */
938 mp_ioapic_routing[idx].apic_id = mp_ioapics[idx].mp_apicid;
939 mp_ioapic_routing[idx].gsi_base = gsi_base;
940 mp_ioapic_routing[idx].gsi_end = gsi_base +
941 io_apic_get_redir_entries(idx);
942
943 printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%lx, "
944 "GSI %d-%d\n", idx, mp_ioapics[idx].mp_apicid,
945 mp_ioapics[idx].mp_apicver, mp_ioapics[idx].mp_apicaddr,
946 mp_ioapic_routing[idx].gsi_base, mp_ioapic_routing[idx].gsi_end);
947
948 nr_ioapics++;
949}
950
951static void assign_to_mp_irq(struct mp_config_intsrc *m,
952 struct mp_config_intsrc *mp_irq)
953{
954 memcpy(mp_irq, m, sizeof(struct mp_config_intsrc));
955}
956
957static int mp_irq_cmp(struct mp_config_intsrc *mp_irq,
958 struct mp_config_intsrc *m)
959{
960 return memcmp(mp_irq, m, sizeof(struct mp_config_intsrc));
961}
962
963static void save_mp_irq(struct mp_config_intsrc *m)
964{
965 int i;
966
967 for (i = 0; i < mp_irq_entries; i++) {
968 if (!mp_irq_cmp(&mp_irqs[i], m))
969 return;
970 }
971
972 assign_to_mp_irq(m, &mp_irqs[mp_irq_entries]);
973 if (++mp_irq_entries == MAX_IRQ_SOURCES)
974 panic("Max # of irq sources exceeded!!\n");
975}
976
977void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi)
978{
979 int ioapic;
980 int pin;
981 struct mp_config_intsrc mp_irq;
982
983 /*
984 * Convert 'gsi' to 'ioapic.pin'.
985 */
986 ioapic = mp_find_ioapic(gsi);
987 if (ioapic < 0)
988 return;
989 pin = gsi - mp_ioapic_routing[ioapic].gsi_base;
990
991 /*
992 * TBD: This check is for faulty timer entries, where the override
993 * erroneously sets the trigger to level, resulting in a HUGE
994 * increase of timer interrupts!
995 */
996 if ((bus_irq == 0) && (trigger == 3))
997 trigger = 1;
998
999 mp_irq.mp_type = MP_INTSRC;
1000 mp_irq.mp_irqtype = mp_INT;
1001 mp_irq.mp_irqflag = (trigger << 2) | polarity;
1002 mp_irq.mp_srcbus = MP_ISA_BUS;
1003 mp_irq.mp_srcbusirq = bus_irq; /* IRQ */
1004 mp_irq.mp_dstapic = mp_ioapics[ioapic].mp_apicid; /* APIC ID */
1005 mp_irq.mp_dstirq = pin; /* INTIN# */
1006
1007 save_mp_irq(&mp_irq);
1008}
1009
1010void __init mp_config_acpi_legacy_irqs(void)
1011{
1012 int i;
1013 int ioapic;
1014 unsigned int dstapic;
1015 struct mp_config_intsrc mp_irq;
1016
1017#if defined (CONFIG_MCA) || defined (CONFIG_EISA)
1018 /*
1019 * Fabricate the legacy ISA bus (bus #31).
1020 */
1021 mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA;
1022#endif
1023 set_bit(MP_ISA_BUS, mp_bus_not_pci);
1024 Dprintk("Bus #%d is ISA\n", MP_ISA_BUS);
1025
1026#ifdef CONFIG_X86_ES7000
1027 /*
1028 * Older generations of ES7000 have no legacy identity mappings
1029 */
1030 if (es7000_plat == 1)
1031 return;
1032#endif
1033
1034 /*
1035 * Locate the IOAPIC that manages the ISA IRQs (0-15).
1036 */
1037 ioapic = mp_find_ioapic(0);
1038 if (ioapic < 0)
1039 return;
1040 dstapic = mp_ioapics[ioapic].mp_apicid;
1041
1042 /*
1043 * Use the default configuration for the IRQs 0-15. Unless
1044 * overridden by (MADT) interrupt source override entries.
1045 */
1046 for (i = 0; i < 16; i++) {
1047 int idx;
1048
1049 for (idx = 0; idx < mp_irq_entries; idx++) {
1050 struct mp_config_intsrc *irq = mp_irqs + idx;
1051
1052 /* Do we already have a mapping for this ISA IRQ? */
1053 if (irq->mp_srcbus == MP_ISA_BUS
1054 && irq->mp_srcbusirq == i)
1055 break;
1056
1057 /* Do we already have a mapping for this IOAPIC pin */
1058 if (irq->mp_dstapic == dstapic &&
1059 irq->mp_dstirq == i)
1060 break;
1061 }
1062
1063 if (idx != mp_irq_entries) {
1064 printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i);
1065 continue; /* IRQ already used */
1066 }
1067
1068 mp_irq.mp_type = MP_INTSRC;
1069 mp_irq.mp_irqflag = 0; /* Conforming */
1070 mp_irq.mp_srcbus = MP_ISA_BUS;
1071 mp_irq.mp_dstapic = dstapic;
1072 mp_irq.mp_irqtype = mp_INT;
1073 mp_irq.mp_srcbusirq = i; /* Identity mapped */
1074 mp_irq.mp_dstirq = i;
1075
1076 save_mp_irq(&mp_irq);
1077 }
1078}
1079
1080int mp_register_gsi(u32 gsi, int triggering, int polarity)
1081{
1082 int ioapic;
1083 int ioapic_pin;
1084#ifdef CONFIG_X86_32
1085#define MAX_GSI_NUM 4096
1086#define IRQ_COMPRESSION_START 64
1087
1088 static int pci_irq = IRQ_COMPRESSION_START;
1089 /*
1090 * Mapping between Global System Interrupts, which
1091 * represent all possible interrupts, and IRQs
1092 * assigned to actual devices.
1093 */
1094 static int gsi_to_irq[MAX_GSI_NUM];
1095#else
1096
1097 if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
1098 return gsi;
1099#endif
1100
1101 /* Don't set up the ACPI SCI because it's already set up */
1102 if (acpi_gbl_FADT.sci_interrupt == gsi)
1103 return gsi;
1104
1105 ioapic = mp_find_ioapic(gsi);
1106 if (ioapic < 0) {
1107 printk(KERN_WARNING "No IOAPIC for GSI %u\n", gsi);
1108 return gsi;
1109 }
1110
1111 ioapic_pin = gsi - mp_ioapic_routing[ioapic].gsi_base;
1112
1113#ifdef CONFIG_X86_32
1114 if (ioapic_renumber_irq)
1115 gsi = ioapic_renumber_irq(ioapic, gsi);
1116#endif
1117
1118 /*
1119 * Avoid pin reprogramming. PRTs typically include entries
1120 * with redundant pin->gsi mappings (but unique PCI devices);
1121 * we only program the IOAPIC on the first.
1122 */
1123 if (ioapic_pin > MP_MAX_IOAPIC_PIN) {
1124 printk(KERN_ERR "Invalid reference to IOAPIC pin "
1125 "%d-%d\n", mp_ioapic_routing[ioapic].apic_id,
1126 ioapic_pin);
1127 return gsi;
1128 }
1129 if (test_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed)) {
1130 Dprintk(KERN_DEBUG "Pin %d-%d already programmed\n",
1131 mp_ioapic_routing[ioapic].apic_id, ioapic_pin);
1132#ifdef CONFIG_X86_32
1133 return (gsi < IRQ_COMPRESSION_START ? gsi : gsi_to_irq[gsi]);
1134#else
1135 return gsi;
1136#endif
1137 }
1138
1139 set_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed);
1140#ifdef CONFIG_X86_32
1141 /*
1142 * For GSI >= 64, use IRQ compression
1143 */
1144 if ((gsi >= IRQ_COMPRESSION_START)
1145 && (triggering == ACPI_LEVEL_SENSITIVE)) {
1146 /*
1147 * For PCI devices assign IRQs in order, avoiding gaps
1148 * due to unused I/O APIC pins.
1149 */
1150 int irq = gsi;
1151 if (gsi < MAX_GSI_NUM) {
1152 /*
1153 * Retain the VIA chipset work-around (gsi > 15), but
1154 * avoid a problem where the 8254 timer (IRQ0) is setup
1155 * via an override (so it's not on pin 0 of the ioapic),
1156 * and at the same time, the pin 0 interrupt is a PCI
1157 * type. The gsi > 15 test could cause these two pins
1158 * to be shared as IRQ0, and they are not shareable.
1159 * So test for this condition, and if necessary, avoid
1160 * the pin collision.
1161 */
1162 gsi = pci_irq++;
1163 /*
1164 * Don't assign IRQ used by ACPI SCI
1165 */
1166 if (gsi == acpi_gbl_FADT.sci_interrupt)
1167 gsi = pci_irq++;
1168 gsi_to_irq[irq] = gsi;
1169 } else {
1170 printk(KERN_ERR "GSI %u is too high\n", gsi);
1171 return gsi;
1172 }
1173 }
1174#endif
1175 io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,
1176 triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
1177 polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
1178 return gsi;
1179}
1180
1181int mp_config_acpi_gsi(unsigned char number, unsigned int devfn, u8 pin,
1182 u32 gsi, int triggering, int polarity)
1183{
1184#ifdef CONFIG_X86_MPPARSE
1185 struct mp_config_intsrc mp_irq;
1186 int ioapic;
1187
1188 if (!acpi_ioapic)
1189 return 0;
1190
1191 /* print the entry should happen on mptable identically */
1192 mp_irq.mp_type = MP_INTSRC;
1193 mp_irq.mp_irqtype = mp_INT;
1194 mp_irq.mp_irqflag = (triggering == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) |
1195 (polarity == ACPI_ACTIVE_HIGH ? 1 : 3);
1196 mp_irq.mp_srcbus = number;
1197 mp_irq.mp_srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3);
1198 ioapic = mp_find_ioapic(gsi);
1199 mp_irq.mp_dstapic = mp_ioapic_routing[ioapic].apic_id;
1200 mp_irq.mp_dstirq = gsi - mp_ioapic_routing[ioapic].gsi_base;
1201
1202 save_mp_irq(&mp_irq);
1203#endif
1204 return 0;
1205}
1206
851/* 1207/*
852 * Parse IOAPIC related entries in MADT 1208 * Parse IOAPIC related entries in MADT
853 * returns 0 on success, < 0 on error 1209 * returns 0 on success, < 0 on error
@@ -997,8 +1353,6 @@ static void __init acpi_process_madt(void)
997 return; 1353 return;
998} 1354}
999 1355
1000#ifdef __i386__
1001
1002static int __init disable_acpi_irq(const struct dmi_system_id *d) 1356static int __init disable_acpi_irq(const struct dmi_system_id *d)
1003{ 1357{
1004 if (!acpi_force) { 1358 if (!acpi_force) {
@@ -1049,6 +1403,16 @@ static int __init force_acpi_ht(const struct dmi_system_id *d)
1049} 1403}
1050 1404
1051/* 1405/*
1406 * Force ignoring BIOS IRQ0 pin2 override
1407 */
1408static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
1409{
1410 pr_notice("%s detected: Ignoring BIOS IRQ0 pin2 override\n", d->ident);
1411 acpi_skip_timer_override = 1;
1412 return 0;
1413}
1414
1415/*
1052 * If your system is blacklisted here, but you find that acpi=force 1416 * If your system is blacklisted here, but you find that acpi=force
1053 * works for you, please contact acpi-devel@sourceforge.net 1417 * works for you, please contact acpi-devel@sourceforge.net
1054 */ 1418 */
@@ -1215,11 +1579,35 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
1215 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), 1579 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
1216 }, 1580 },
1217 }, 1581 },
1582 /*
1583 * HP laptops which use a DSDT reporting as HP/SB400/10000,
1584 * which includes some code which overrides all temperature
1585 * trip points to 16C if the INTIN2 input of the I/O APIC
1586 * is enabled. This input is incorrectly designated the
1587 * ISA IRQ 0 via an interrupt source override even though
1588 * it is wired to the output of the master 8259A and INTIN0
1589 * is not connected at all. Force ignoring BIOS IRQ0 pin2
1590 * override in that cases.
1591 */
1592 {
1593 .callback = dmi_ignore_irq0_timer_override,
1594 .ident = "HP NX6125 laptop",
1595 .matches = {
1596 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1597 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6125"),
1598 },
1599 },
1600 {
1601 .callback = dmi_ignore_irq0_timer_override,
1602 .ident = "HP NX6325 laptop",
1603 .matches = {
1604 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1605 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
1606 },
1607 },
1218 {} 1608 {}
1219}; 1609};
1220 1610
1221#endif /* __i386__ */
1222
1223/* 1611/*
1224 * acpi_boot_table_init() and acpi_boot_init() 1612 * acpi_boot_table_init() and acpi_boot_init()
1225 * called from setup_arch(), always. 1613 * called from setup_arch(), always.
@@ -1247,9 +1635,7 @@ int __init acpi_boot_table_init(void)
1247{ 1635{
1248 int error; 1636 int error;
1249 1637
1250#ifdef __i386__
1251 dmi_check_system(acpi_dmi_table); 1638 dmi_check_system(acpi_dmi_table);
1252#endif
1253 1639
1254 /* 1640 /*
1255 * If acpi_disabled, bail out 1641 * If acpi_disabled, bail out
@@ -1374,6 +1760,20 @@ static int __init parse_pci(char *arg)
1374} 1760}
1375early_param("pci", parse_pci); 1761early_param("pci", parse_pci);
1376 1762
1763int __init acpi_mps_check(void)
1764{
1765#if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE)
1766/* mptable code is not built-in*/
1767 if (acpi_disabled || acpi_noirq) {
1768 printk(KERN_WARNING "MPS support code is not built-in.\n"
1769 "Using acpi=off or acpi=noirq or pci=noacpi "
1770 "may have problem\n");
1771 return 1;
1772 }
1773#endif
1774 return 0;
1775}
1776
1377#ifdef CONFIG_X86_IO_APIC 1777#ifdef CONFIG_X86_IO_APIC
1378static int __init parse_acpi_skip_timer_override(char *arg) 1778static int __init parse_acpi_skip_timer_override(char *arg)
1379{ 1779{
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c
index de2d2e4ebad9..7c074eec39fb 100644
--- a/arch/x86/kernel/acpi/processor.c
+++ b/arch/x86/kernel/acpi/processor.c
@@ -56,6 +56,12 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
56 if (cpu_has(c, X86_FEATURE_ACPI)) 56 if (cpu_has(c, X86_FEATURE_ACPI))
57 buf[2] |= ACPI_PDC_T_FFH; 57 buf[2] |= ACPI_PDC_T_FFH;
58 58
59 /*
60 * If mwait/monitor is unsupported, C2/C3_FFH will be disabled
61 */
62 if (!cpu_has(c, X86_FEATURE_MWAIT))
63 buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
64
59 obj->type = ACPI_TYPE_BUFFER; 65 obj->type = ACPI_TYPE_BUFFER;
60 obj->buffer.length = 12; 66 obj->buffer.length = 12;
61 obj->buffer.pointer = (u8 *) buf; 67 obj->buffer.pointer = (u8 *) buf;
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.S b/arch/x86/kernel/acpi/realmode/wakeup.S
index f9b77fb37e5b..3355973b12ac 100644
--- a/arch/x86/kernel/acpi/realmode/wakeup.S
+++ b/arch/x86/kernel/acpi/realmode/wakeup.S
@@ -5,6 +5,7 @@
5#include <asm/msr-index.h> 5#include <asm/msr-index.h>
6#include <asm/page.h> 6#include <asm/page.h>
7#include <asm/pgtable.h> 7#include <asm/pgtable.h>
8#include <asm/processor-flags.h>
8 9
9 .code16 10 .code16
10 .section ".header", "a" 11 .section ".header", "a"
@@ -24,6 +25,11 @@ pmode_gdt: .quad 0
24realmode_flags: .long 0 25realmode_flags: .long 0
25real_magic: .long 0 26real_magic: .long 0
26trampoline_segment: .word 0 27trampoline_segment: .word 0
28_pad1: .byte 0
29wakeup_jmp: .byte 0xea /* ljmpw */
30wakeup_jmp_off: .word 3f
31wakeup_jmp_seg: .word 0
32wakeup_gdt: .quad 0, 0, 0
27signature: .long 0x51ee1111 33signature: .long 0x51ee1111
28 34
29 .text 35 .text
@@ -34,11 +40,34 @@ _start:
34 cli 40 cli
35 cld 41 cld
36 42
43 /* Apparently some dimwit BIOS programmers don't know how to
44 program a PM to RM transition, and we might end up here with
45 junk in the data segment descriptor registers. The only way
46 to repair that is to go into PM and fix it ourselves... */
47 movw $16, %cx
48 lgdtl %cs:wakeup_gdt
49 movl %cr0, %eax
50 orb $X86_CR0_PE, %al
51 movl %eax, %cr0
52 jmp 1f
531: ljmpw $8, $2f
542:
55 movw %cx, %ds
56 movw %cx, %es
57 movw %cx, %ss
58 movw %cx, %fs
59 movw %cx, %gs
60
61 andb $~X86_CR0_PE, %al
62 movl %eax, %cr0
63 jmp wakeup_jmp
643:
37 /* Set up segments */ 65 /* Set up segments */
38 movw %cs, %ax 66 movw %cs, %ax
39 movw %ax, %ds 67 movw %ax, %ds
40 movw %ax, %es 68 movw %ax, %es
41 movw %ax, %ss 69 movw %ax, %ss
70 lidtl wakeup_idt
42 71
43 movl $wakeup_stack_end, %esp 72 movl $wakeup_stack_end, %esp
44 73
@@ -98,7 +127,14 @@ bogus_real_magic:
98 jmp 1b 127 jmp 1b
99 128
100 .data 129 .data
101 .balign 4 130 .balign 8
131
132 /* This is the standard real-mode IDT */
133wakeup_idt:
134 .word 0xffff /* limit */
135 .long 0 /* address */
136 .word 0
137
102 .globl HEAP, heap_end 138 .globl HEAP, heap_end
103HEAP: 139HEAP:
104 .long wakeup_heap 140 .long wakeup_heap
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.h b/arch/x86/kernel/acpi/realmode/wakeup.h
index ef8166fe8020..69d38d0b2b64 100644
--- a/arch/x86/kernel/acpi/realmode/wakeup.h
+++ b/arch/x86/kernel/acpi/realmode/wakeup.h
@@ -24,6 +24,11 @@ struct wakeup_header {
24 u32 realmode_flags; 24 u32 realmode_flags;
25 u32 real_magic; 25 u32 real_magic;
26 u16 trampoline_segment; /* segment with trampoline code, 64-bit only */ 26 u16 trampoline_segment; /* segment with trampoline code, 64-bit only */
27 u8 _pad1;
28 u8 wakeup_jmp;
29 u16 wakeup_jmp_off;
30 u16 wakeup_jmp_seg;
31 u64 wakeup_gdt[3];
27 u32 signature; /* To check we have correct structure */ 32 u32 signature; /* To check we have correct structure */
28} __attribute__((__packed__)); 33} __attribute__((__packed__));
29 34
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index afc25ee9964b..868de3d5c39d 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -23,6 +23,15 @@ static unsigned long acpi_realmode;
23static char temp_stack[10240]; 23static char temp_stack[10240];
24#endif 24#endif
25 25
26/* XXX: this macro should move to asm-x86/segment.h and be shared with the
27 boot code... */
28#define GDT_ENTRY(flags, base, limit) \
29 (((u64)(base & 0xff000000) << 32) | \
30 ((u64)flags << 40) | \
31 ((u64)(limit & 0x00ff0000) << 32) | \
32 ((u64)(base & 0x00ffffff) << 16) | \
33 ((u64)(limit & 0x0000ffff)))
34
26/** 35/**
27 * acpi_save_state_mem - save kernel state 36 * acpi_save_state_mem - save kernel state
28 * 37 *
@@ -50,6 +59,29 @@ int acpi_save_state_mem(void)
50 59
51 header->video_mode = saved_video_mode; 60 header->video_mode = saved_video_mode;
52 61
62 header->wakeup_jmp_seg = acpi_wakeup_address >> 4;
63
64 /*
65 * Set up the wakeup GDT. We set these up as Big Real Mode,
66 * that is, with limits set to 4 GB. At least the Lenovo
67 * Thinkpad X61 is known to need this for the video BIOS
68 * initialization quirk to work; this is likely to also
69 * be the case for other laptops or integrated video devices.
70 */
71
72 /* GDT[0]: GDT self-pointer */
73 header->wakeup_gdt[0] =
74 (u64)(sizeof(header->wakeup_gdt) - 1) +
75 ((u64)(acpi_wakeup_address +
76 ((char *)&header->wakeup_gdt - (char *)acpi_realmode))
77 << 16);
78 /* GDT[1]: big real mode-like code segment */
79 header->wakeup_gdt[1] =
80 GDT_ENTRY(0x809b, acpi_wakeup_address, 0xfffff);
81 /* GDT[2]: big real mode-like data segment */
82 header->wakeup_gdt[2] =
83 GDT_ENTRY(0x8093, acpi_wakeup_address, 0xfffff);
84
53#ifndef CONFIG_64BIT 85#ifndef CONFIG_64BIT
54 store_gdt((struct desc_ptr *)&header->pmode_gdt); 86 store_gdt((struct desc_ptr *)&header->pmode_gdt);
55 87
@@ -72,7 +104,9 @@ int acpi_save_state_mem(void)
72 saved_magic = 0x12345678; 104 saved_magic = 0x12345678;
73#else /* CONFIG_64BIT */ 105#else /* CONFIG_64BIT */
74 header->trampoline_segment = setup_trampoline() >> 4; 106 header->trampoline_segment = setup_trampoline() >> 4;
75 init_rsp = (unsigned long)temp_stack + 4096; 107#ifdef CONFIG_SMP
108 stack_start.sp = temp_stack + 4096;
109#endif
76 initial_code = (unsigned long)wakeup_long64; 110 initial_code = (unsigned long)wakeup_long64;
77 saved_magic = 0x123456789abcdef0; 111 saved_magic = 0x123456789abcdef0;
78#endif /* CONFIG_64BIT */ 112#endif /* CONFIG_64BIT */
@@ -111,7 +145,7 @@ void __init acpi_reserve_bootmem(void)
111 return; 145 return;
112 } 146 }
113 147
114 acpi_wakeup_address = acpi_realmode; 148 acpi_wakeup_address = virt_to_phys((void *)acpi_realmode);
115} 149}
116 150
117 151
@@ -124,6 +158,8 @@ static int __init acpi_sleep_setup(char *str)
124 acpi_realmode_flags |= 2; 158 acpi_realmode_flags |= 2;
125 if (strncmp(str, "s3_beep", 7) == 0) 159 if (strncmp(str, "s3_beep", 7) == 0)
126 acpi_realmode_flags |= 4; 160 acpi_realmode_flags |= 4;
161 if (strncmp(str, "old_ordering", 12) == 0)
162 acpi_old_suspend_ordering();
127 str = strchr(str, ','); 163 str = strchr(str, ',');
128 if (str != NULL) 164 if (str != NULL)
129 str += strspn(str, ", \t"); 165 str += strspn(str, ", \t");
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 65c7857a90dd..2763cb37b553 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -1,6 +1,6 @@
1#include <linux/module.h> 1#include <linux/module.h>
2#include <linux/sched.h> 2#include <linux/sched.h>
3#include <linux/spinlock.h> 3#include <linux/mutex.h>
4#include <linux/list.h> 4#include <linux/list.h>
5#include <linux/kprobes.h> 5#include <linux/kprobes.h>
6#include <linux/mm.h> 6#include <linux/mm.h>
@@ -143,7 +143,7 @@ static const unsigned char *const p6_nops[ASM_NOP_MAX+1] = {
143#ifdef CONFIG_X86_64 143#ifdef CONFIG_X86_64
144 144
145extern char __vsyscall_0; 145extern char __vsyscall_0;
146static inline const unsigned char*const * find_nop_table(void) 146const unsigned char *const *find_nop_table(void)
147{ 147{
148 return boot_cpu_data.x86_vendor != X86_VENDOR_INTEL || 148 return boot_cpu_data.x86_vendor != X86_VENDOR_INTEL ||
149 boot_cpu_data.x86 < 6 ? k8_nops : p6_nops; 149 boot_cpu_data.x86 < 6 ? k8_nops : p6_nops;
@@ -162,7 +162,7 @@ static const struct nop {
162 { -1, NULL } 162 { -1, NULL }
163}; 163};
164 164
165static const unsigned char*const * find_nop_table(void) 165const unsigned char *const *find_nop_table(void)
166{ 166{
167 const unsigned char *const *noptable = intel_nops; 167 const unsigned char *const *noptable = intel_nops;
168 int i; 168 int i;
@@ -279,7 +279,7 @@ struct smp_alt_module {
279 struct list_head next; 279 struct list_head next;
280}; 280};
281static LIST_HEAD(smp_alt_modules); 281static LIST_HEAD(smp_alt_modules);
282static DEFINE_SPINLOCK(smp_alt); 282static DEFINE_MUTEX(smp_alt);
283static int smp_mode = 1; /* protected by smp_alt */ 283static int smp_mode = 1; /* protected by smp_alt */
284 284
285void alternatives_smp_module_add(struct module *mod, char *name, 285void alternatives_smp_module_add(struct module *mod, char *name,
@@ -312,12 +312,12 @@ void alternatives_smp_module_add(struct module *mod, char *name,
312 __func__, smp->locks, smp->locks_end, 312 __func__, smp->locks, smp->locks_end,
313 smp->text, smp->text_end, smp->name); 313 smp->text, smp->text_end, smp->name);
314 314
315 spin_lock(&smp_alt); 315 mutex_lock(&smp_alt);
316 list_add_tail(&smp->next, &smp_alt_modules); 316 list_add_tail(&smp->next, &smp_alt_modules);
317 if (boot_cpu_has(X86_FEATURE_UP)) 317 if (boot_cpu_has(X86_FEATURE_UP))
318 alternatives_smp_unlock(smp->locks, smp->locks_end, 318 alternatives_smp_unlock(smp->locks, smp->locks_end,
319 smp->text, smp->text_end); 319 smp->text, smp->text_end);
320 spin_unlock(&smp_alt); 320 mutex_unlock(&smp_alt);
321} 321}
322 322
323void alternatives_smp_module_del(struct module *mod) 323void alternatives_smp_module_del(struct module *mod)
@@ -327,17 +327,17 @@ void alternatives_smp_module_del(struct module *mod)
327 if (smp_alt_once || noreplace_smp) 327 if (smp_alt_once || noreplace_smp)
328 return; 328 return;
329 329
330 spin_lock(&smp_alt); 330 mutex_lock(&smp_alt);
331 list_for_each_entry(item, &smp_alt_modules, next) { 331 list_for_each_entry(item, &smp_alt_modules, next) {
332 if (mod != item->mod) 332 if (mod != item->mod)
333 continue; 333 continue;
334 list_del(&item->next); 334 list_del(&item->next);
335 spin_unlock(&smp_alt); 335 mutex_unlock(&smp_alt);
336 DPRINTK("%s: %s\n", __func__, item->name); 336 DPRINTK("%s: %s\n", __func__, item->name);
337 kfree(item); 337 kfree(item);
338 return; 338 return;
339 } 339 }
340 spin_unlock(&smp_alt); 340 mutex_unlock(&smp_alt);
341} 341}
342 342
343void alternatives_smp_switch(int smp) 343void alternatives_smp_switch(int smp)
@@ -359,7 +359,7 @@ void alternatives_smp_switch(int smp)
359 return; 359 return;
360 BUG_ON(!smp && (num_online_cpus() > 1)); 360 BUG_ON(!smp && (num_online_cpus() > 1));
361 361
362 spin_lock(&smp_alt); 362 mutex_lock(&smp_alt);
363 363
364 /* 364 /*
365 * Avoid unnecessary switches because it forces JIT based VMs to 365 * Avoid unnecessary switches because it forces JIT based VMs to
@@ -383,7 +383,7 @@ void alternatives_smp_switch(int smp)
383 mod->text, mod->text_end); 383 mod->text, mod->text_end);
384 } 384 }
385 smp_mode = smp; 385 smp_mode = smp;
386 spin_unlock(&smp_alt); 386 mutex_unlock(&smp_alt);
387} 387}
388 388
389#endif 389#endif
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
new file mode 100644
index 000000000000..f2766d84c7a0
--- /dev/null
+++ b/arch/x86/kernel/amd_iommu.c
@@ -0,0 +1,962 @@
1/*
2 * Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
3 * Author: Joerg Roedel <joerg.roedel@amd.com>
4 * Leo Duran <leo.duran@amd.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#include <linux/pci.h>
21#include <linux/gfp.h>
22#include <linux/bitops.h>
23#include <linux/scatterlist.h>
24#include <linux/iommu-helper.h>
25#include <asm/proto.h>
26#include <asm/gart.h>
27#include <asm/amd_iommu_types.h>
28#include <asm/amd_iommu.h>
29
30#define CMD_SET_TYPE(cmd, t) ((cmd)->data[1] |= ((t) << 28))
31
32#define to_pages(addr, size) \
33 (round_up(((addr) & ~PAGE_MASK) + (size), PAGE_SIZE) >> PAGE_SHIFT)
34
35static DEFINE_RWLOCK(amd_iommu_devtable_lock);
36
37struct command {
38 u32 data[4];
39};
40
41static int dma_ops_unity_map(struct dma_ops_domain *dma_dom,
42 struct unity_map_entry *e);
43
44static int iommu_has_npcache(struct amd_iommu *iommu)
45{
46 return iommu->cap & IOMMU_CAP_NPCACHE;
47}
48
49static int __iommu_queue_command(struct amd_iommu *iommu, struct command *cmd)
50{
51 u32 tail, head;
52 u8 *target;
53
54 tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
55 target = (iommu->cmd_buf + tail);
56 memcpy_toio(target, cmd, sizeof(*cmd));
57 tail = (tail + sizeof(*cmd)) % iommu->cmd_buf_size;
58 head = readl(iommu->mmio_base + MMIO_CMD_HEAD_OFFSET);
59 if (tail == head)
60 return -ENOMEM;
61 writel(tail, iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
62
63 return 0;
64}
65
66static int iommu_queue_command(struct amd_iommu *iommu, struct command *cmd)
67{
68 unsigned long flags;
69 int ret;
70
71 spin_lock_irqsave(&iommu->lock, flags);
72 ret = __iommu_queue_command(iommu, cmd);
73 spin_unlock_irqrestore(&iommu->lock, flags);
74
75 return ret;
76}
77
78static int iommu_completion_wait(struct amd_iommu *iommu)
79{
80 int ret;
81 struct command cmd;
82 volatile u64 ready = 0;
83 unsigned long ready_phys = virt_to_phys(&ready);
84
85 memset(&cmd, 0, sizeof(cmd));
86 cmd.data[0] = LOW_U32(ready_phys) | CMD_COMPL_WAIT_STORE_MASK;
87 cmd.data[1] = HIGH_U32(ready_phys);
88 cmd.data[2] = 1; /* value written to 'ready' */
89 CMD_SET_TYPE(&cmd, CMD_COMPL_WAIT);
90
91 iommu->need_sync = 0;
92
93 ret = iommu_queue_command(iommu, &cmd);
94
95 if (ret)
96 return ret;
97
98 while (!ready)
99 cpu_relax();
100
101 return 0;
102}
103
104static int iommu_queue_inv_dev_entry(struct amd_iommu *iommu, u16 devid)
105{
106 struct command cmd;
107
108 BUG_ON(iommu == NULL);
109
110 memset(&cmd, 0, sizeof(cmd));
111 CMD_SET_TYPE(&cmd, CMD_INV_DEV_ENTRY);
112 cmd.data[0] = devid;
113
114 iommu->need_sync = 1;
115
116 return iommu_queue_command(iommu, &cmd);
117}
118
119static int iommu_queue_inv_iommu_pages(struct amd_iommu *iommu,
120 u64 address, u16 domid, int pde, int s)
121{
122 struct command cmd;
123
124 memset(&cmd, 0, sizeof(cmd));
125 address &= PAGE_MASK;
126 CMD_SET_TYPE(&cmd, CMD_INV_IOMMU_PAGES);
127 cmd.data[1] |= domid;
128 cmd.data[2] = LOW_U32(address);
129 cmd.data[3] = HIGH_U32(address);
130 if (s)
131 cmd.data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK;
132 if (pde)
133 cmd.data[2] |= CMD_INV_IOMMU_PAGES_PDE_MASK;
134
135 iommu->need_sync = 1;
136
137 return iommu_queue_command(iommu, &cmd);
138}
139
140static int iommu_flush_pages(struct amd_iommu *iommu, u16 domid,
141 u64 address, size_t size)
142{
143 int s = 0;
144 unsigned pages = to_pages(address, size);
145
146 address &= PAGE_MASK;
147
148 if (pages > 1) {
149 /*
150 * If we have to flush more than one page, flush all
151 * TLB entries for this domain
152 */
153 address = CMD_INV_IOMMU_ALL_PAGES_ADDRESS;
154 s = 1;
155 }
156
157 iommu_queue_inv_iommu_pages(iommu, address, domid, 0, s);
158
159 return 0;
160}
161
162static int iommu_map(struct protection_domain *dom,
163 unsigned long bus_addr,
164 unsigned long phys_addr,
165 int prot)
166{
167 u64 __pte, *pte, *page;
168
169 bus_addr = PAGE_ALIGN(bus_addr);
170 phys_addr = PAGE_ALIGN(bus_addr);
171
172 /* only support 512GB address spaces for now */
173 if (bus_addr > IOMMU_MAP_SIZE_L3 || !(prot & IOMMU_PROT_MASK))
174 return -EINVAL;
175
176 pte = &dom->pt_root[IOMMU_PTE_L2_INDEX(bus_addr)];
177
178 if (!IOMMU_PTE_PRESENT(*pte)) {
179 page = (u64 *)get_zeroed_page(GFP_KERNEL);
180 if (!page)
181 return -ENOMEM;
182 *pte = IOMMU_L2_PDE(virt_to_phys(page));
183 }
184
185 pte = IOMMU_PTE_PAGE(*pte);
186 pte = &pte[IOMMU_PTE_L1_INDEX(bus_addr)];
187
188 if (!IOMMU_PTE_PRESENT(*pte)) {
189 page = (u64 *)get_zeroed_page(GFP_KERNEL);
190 if (!page)
191 return -ENOMEM;
192 *pte = IOMMU_L1_PDE(virt_to_phys(page));
193 }
194
195 pte = IOMMU_PTE_PAGE(*pte);
196 pte = &pte[IOMMU_PTE_L0_INDEX(bus_addr)];
197
198 if (IOMMU_PTE_PRESENT(*pte))
199 return -EBUSY;
200
201 __pte = phys_addr | IOMMU_PTE_P;
202 if (prot & IOMMU_PROT_IR)
203 __pte |= IOMMU_PTE_IR;
204 if (prot & IOMMU_PROT_IW)
205 __pte |= IOMMU_PTE_IW;
206
207 *pte = __pte;
208
209 return 0;
210}
211
212static int iommu_for_unity_map(struct amd_iommu *iommu,
213 struct unity_map_entry *entry)
214{
215 u16 bdf, i;
216
217 for (i = entry->devid_start; i <= entry->devid_end; ++i) {
218 bdf = amd_iommu_alias_table[i];
219 if (amd_iommu_rlookup_table[bdf] == iommu)
220 return 1;
221 }
222
223 return 0;
224}
225
226static int iommu_init_unity_mappings(struct amd_iommu *iommu)
227{
228 struct unity_map_entry *entry;
229 int ret;
230
231 list_for_each_entry(entry, &amd_iommu_unity_map, list) {
232 if (!iommu_for_unity_map(iommu, entry))
233 continue;
234 ret = dma_ops_unity_map(iommu->default_dom, entry);
235 if (ret)
236 return ret;
237 }
238
239 return 0;
240}
241
242static int dma_ops_unity_map(struct dma_ops_domain *dma_dom,
243 struct unity_map_entry *e)
244{
245 u64 addr;
246 int ret;
247
248 for (addr = e->address_start; addr < e->address_end;
249 addr += PAGE_SIZE) {
250 ret = iommu_map(&dma_dom->domain, addr, addr, e->prot);
251 if (ret)
252 return ret;
253 /*
254 * if unity mapping is in aperture range mark the page
255 * as allocated in the aperture
256 */
257 if (addr < dma_dom->aperture_size)
258 __set_bit(addr >> PAGE_SHIFT, dma_dom->bitmap);
259 }
260
261 return 0;
262}
263
264static int init_unity_mappings_for_device(struct dma_ops_domain *dma_dom,
265 u16 devid)
266{
267 struct unity_map_entry *e;
268 int ret;
269
270 list_for_each_entry(e, &amd_iommu_unity_map, list) {
271 if (!(devid >= e->devid_start && devid <= e->devid_end))
272 continue;
273 ret = dma_ops_unity_map(dma_dom, e);
274 if (ret)
275 return ret;
276 }
277
278 return 0;
279}
280
281static unsigned long dma_mask_to_pages(unsigned long mask)
282{
283 return (mask >> PAGE_SHIFT) +
284 (PAGE_ALIGN(mask & ~PAGE_MASK) >> PAGE_SHIFT);
285}
286
287static unsigned long dma_ops_alloc_addresses(struct device *dev,
288 struct dma_ops_domain *dom,
289 unsigned int pages)
290{
291 unsigned long limit = dma_mask_to_pages(*dev->dma_mask);
292 unsigned long address;
293 unsigned long size = dom->aperture_size >> PAGE_SHIFT;
294 unsigned long boundary_size;
295
296 boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
297 PAGE_SIZE) >> PAGE_SHIFT;
298 limit = limit < size ? limit : size;
299
300 if (dom->next_bit >= limit)
301 dom->next_bit = 0;
302
303 address = iommu_area_alloc(dom->bitmap, limit, dom->next_bit, pages,
304 0 , boundary_size, 0);
305 if (address == -1)
306 address = iommu_area_alloc(dom->bitmap, limit, 0, pages,
307 0, boundary_size, 0);
308
309 if (likely(address != -1)) {
310 dom->next_bit = address + pages;
311 address <<= PAGE_SHIFT;
312 } else
313 address = bad_dma_address;
314
315 WARN_ON((address + (PAGE_SIZE*pages)) > dom->aperture_size);
316
317 return address;
318}
319
320static void dma_ops_free_addresses(struct dma_ops_domain *dom,
321 unsigned long address,
322 unsigned int pages)
323{
324 address >>= PAGE_SHIFT;
325 iommu_area_free(dom->bitmap, address, pages);
326}
327
328static u16 domain_id_alloc(void)
329{
330 unsigned long flags;
331 int id;
332
333 write_lock_irqsave(&amd_iommu_devtable_lock, flags);
334 id = find_first_zero_bit(amd_iommu_pd_alloc_bitmap, MAX_DOMAIN_ID);
335 BUG_ON(id == 0);
336 if (id > 0 && id < MAX_DOMAIN_ID)
337 __set_bit(id, amd_iommu_pd_alloc_bitmap);
338 else
339 id = 0;
340 write_unlock_irqrestore(&amd_iommu_devtable_lock, flags);
341
342 return id;
343}
344
345static void dma_ops_reserve_addresses(struct dma_ops_domain *dom,
346 unsigned long start_page,
347 unsigned int pages)
348{
349 unsigned int last_page = dom->aperture_size >> PAGE_SHIFT;
350
351 if (start_page + pages > last_page)
352 pages = last_page - start_page;
353
354 set_bit_string(dom->bitmap, start_page, pages);
355}
356
357static void dma_ops_free_pagetable(struct dma_ops_domain *dma_dom)
358{
359 int i, j;
360 u64 *p1, *p2, *p3;
361
362 p1 = dma_dom->domain.pt_root;
363
364 if (!p1)
365 return;
366
367 for (i = 0; i < 512; ++i) {
368 if (!IOMMU_PTE_PRESENT(p1[i]))
369 continue;
370
371 p2 = IOMMU_PTE_PAGE(p1[i]);
372 for (j = 0; j < 512; ++i) {
373 if (!IOMMU_PTE_PRESENT(p2[j]))
374 continue;
375 p3 = IOMMU_PTE_PAGE(p2[j]);
376 free_page((unsigned long)p3);
377 }
378
379 free_page((unsigned long)p2);
380 }
381
382 free_page((unsigned long)p1);
383}
384
385static void dma_ops_domain_free(struct dma_ops_domain *dom)
386{
387 if (!dom)
388 return;
389
390 dma_ops_free_pagetable(dom);
391
392 kfree(dom->pte_pages);
393
394 kfree(dom->bitmap);
395
396 kfree(dom);
397}
398
399static struct dma_ops_domain *dma_ops_domain_alloc(struct amd_iommu *iommu,
400 unsigned order)
401{
402 struct dma_ops_domain *dma_dom;
403 unsigned i, num_pte_pages;
404 u64 *l2_pde;
405 u64 address;
406
407 /*
408 * Currently the DMA aperture must be between 32 MB and 1GB in size
409 */
410 if ((order < 25) || (order > 30))
411 return NULL;
412
413 dma_dom = kzalloc(sizeof(struct dma_ops_domain), GFP_KERNEL);
414 if (!dma_dom)
415 return NULL;
416
417 spin_lock_init(&dma_dom->domain.lock);
418
419 dma_dom->domain.id = domain_id_alloc();
420 if (dma_dom->domain.id == 0)
421 goto free_dma_dom;
422 dma_dom->domain.mode = PAGE_MODE_3_LEVEL;
423 dma_dom->domain.pt_root = (void *)get_zeroed_page(GFP_KERNEL);
424 dma_dom->domain.priv = dma_dom;
425 if (!dma_dom->domain.pt_root)
426 goto free_dma_dom;
427 dma_dom->aperture_size = (1ULL << order);
428 dma_dom->bitmap = kzalloc(dma_dom->aperture_size / (PAGE_SIZE * 8),
429 GFP_KERNEL);
430 if (!dma_dom->bitmap)
431 goto free_dma_dom;
432 /*
433 * mark the first page as allocated so we never return 0 as
434 * a valid dma-address. So we can use 0 as error value
435 */
436 dma_dom->bitmap[0] = 1;
437 dma_dom->next_bit = 0;
438
439 if (iommu->exclusion_start &&
440 iommu->exclusion_start < dma_dom->aperture_size) {
441 unsigned long startpage = iommu->exclusion_start >> PAGE_SHIFT;
442 int pages = to_pages(iommu->exclusion_start,
443 iommu->exclusion_length);
444 dma_ops_reserve_addresses(dma_dom, startpage, pages);
445 }
446
447 num_pte_pages = dma_dom->aperture_size / (PAGE_SIZE * 512);
448 dma_dom->pte_pages = kzalloc(num_pte_pages * sizeof(void *),
449 GFP_KERNEL);
450 if (!dma_dom->pte_pages)
451 goto free_dma_dom;
452
453 l2_pde = (u64 *)get_zeroed_page(GFP_KERNEL);
454 if (l2_pde == NULL)
455 goto free_dma_dom;
456
457 dma_dom->domain.pt_root[0] = IOMMU_L2_PDE(virt_to_phys(l2_pde));
458
459 for (i = 0; i < num_pte_pages; ++i) {
460 dma_dom->pte_pages[i] = (u64 *)get_zeroed_page(GFP_KERNEL);
461 if (!dma_dom->pte_pages[i])
462 goto free_dma_dom;
463 address = virt_to_phys(dma_dom->pte_pages[i]);
464 l2_pde[i] = IOMMU_L1_PDE(address);
465 }
466
467 return dma_dom;
468
469free_dma_dom:
470 dma_ops_domain_free(dma_dom);
471
472 return NULL;
473}
474
475static struct protection_domain *domain_for_device(u16 devid)
476{
477 struct protection_domain *dom;
478 unsigned long flags;
479
480 read_lock_irqsave(&amd_iommu_devtable_lock, flags);
481 dom = amd_iommu_pd_table[devid];
482 read_unlock_irqrestore(&amd_iommu_devtable_lock, flags);
483
484 return dom;
485}
486
487static void set_device_domain(struct amd_iommu *iommu,
488 struct protection_domain *domain,
489 u16 devid)
490{
491 unsigned long flags;
492
493 u64 pte_root = virt_to_phys(domain->pt_root);
494
495 pte_root |= (domain->mode & 0x07) << 9;
496 pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | 2;
497
498 write_lock_irqsave(&amd_iommu_devtable_lock, flags);
499 amd_iommu_dev_table[devid].data[0] = pte_root;
500 amd_iommu_dev_table[devid].data[1] = pte_root >> 32;
501 amd_iommu_dev_table[devid].data[2] = domain->id;
502
503 amd_iommu_pd_table[devid] = domain;
504 write_unlock_irqrestore(&amd_iommu_devtable_lock, flags);
505
506 iommu_queue_inv_dev_entry(iommu, devid);
507
508 iommu->need_sync = 1;
509}
510
511static int get_device_resources(struct device *dev,
512 struct amd_iommu **iommu,
513 struct protection_domain **domain,
514 u16 *bdf)
515{
516 struct dma_ops_domain *dma_dom;
517 struct pci_dev *pcidev;
518 u16 _bdf;
519
520 BUG_ON(!dev || dev->bus != &pci_bus_type || !dev->dma_mask);
521
522 pcidev = to_pci_dev(dev);
523 _bdf = (pcidev->bus->number << 8) | pcidev->devfn;
524
525 if (_bdf >= amd_iommu_last_bdf) {
526 *iommu = NULL;
527 *domain = NULL;
528 *bdf = 0xffff;
529 return 0;
530 }
531
532 *bdf = amd_iommu_alias_table[_bdf];
533
534 *iommu = amd_iommu_rlookup_table[*bdf];
535 if (*iommu == NULL)
536 return 0;
537 dma_dom = (*iommu)->default_dom;
538 *domain = domain_for_device(*bdf);
539 if (*domain == NULL) {
540 *domain = &dma_dom->domain;
541 set_device_domain(*iommu, *domain, *bdf);
542 printk(KERN_INFO "AMD IOMMU: Using protection domain %d for "
543 "device ", (*domain)->id);
544 print_devid(_bdf, 1);
545 }
546
547 return 1;
548}
549
550static dma_addr_t dma_ops_domain_map(struct amd_iommu *iommu,
551 struct dma_ops_domain *dom,
552 unsigned long address,
553 phys_addr_t paddr,
554 int direction)
555{
556 u64 *pte, __pte;
557
558 WARN_ON(address > dom->aperture_size);
559
560 paddr &= PAGE_MASK;
561
562 pte = dom->pte_pages[IOMMU_PTE_L1_INDEX(address)];
563 pte += IOMMU_PTE_L0_INDEX(address);
564
565 __pte = paddr | IOMMU_PTE_P | IOMMU_PTE_FC;
566
567 if (direction == DMA_TO_DEVICE)
568 __pte |= IOMMU_PTE_IR;
569 else if (direction == DMA_FROM_DEVICE)
570 __pte |= IOMMU_PTE_IW;
571 else if (direction == DMA_BIDIRECTIONAL)
572 __pte |= IOMMU_PTE_IR | IOMMU_PTE_IW;
573
574 WARN_ON(*pte);
575
576 *pte = __pte;
577
578 return (dma_addr_t)address;
579}
580
581static void dma_ops_domain_unmap(struct amd_iommu *iommu,
582 struct dma_ops_domain *dom,
583 unsigned long address)
584{
585 u64 *pte;
586
587 if (address >= dom->aperture_size)
588 return;
589
590 WARN_ON(address & 0xfffULL || address > dom->aperture_size);
591
592 pte = dom->pte_pages[IOMMU_PTE_L1_INDEX(address)];
593 pte += IOMMU_PTE_L0_INDEX(address);
594
595 WARN_ON(!*pte);
596
597 *pte = 0ULL;
598}
599
600static dma_addr_t __map_single(struct device *dev,
601 struct amd_iommu *iommu,
602 struct dma_ops_domain *dma_dom,
603 phys_addr_t paddr,
604 size_t size,
605 int dir)
606{
607 dma_addr_t offset = paddr & ~PAGE_MASK;
608 dma_addr_t address, start;
609 unsigned int pages;
610 int i;
611
612 pages = to_pages(paddr, size);
613 paddr &= PAGE_MASK;
614
615 address = dma_ops_alloc_addresses(dev, dma_dom, pages);
616 if (unlikely(address == bad_dma_address))
617 goto out;
618
619 start = address;
620 for (i = 0; i < pages; ++i) {
621 dma_ops_domain_map(iommu, dma_dom, start, paddr, dir);
622 paddr += PAGE_SIZE;
623 start += PAGE_SIZE;
624 }
625 address += offset;
626
627out:
628 return address;
629}
630
631static void __unmap_single(struct amd_iommu *iommu,
632 struct dma_ops_domain *dma_dom,
633 dma_addr_t dma_addr,
634 size_t size,
635 int dir)
636{
637 dma_addr_t i, start;
638 unsigned int pages;
639
640 if ((dma_addr == 0) || (dma_addr + size > dma_dom->aperture_size))
641 return;
642
643 pages = to_pages(dma_addr, size);
644 dma_addr &= PAGE_MASK;
645 start = dma_addr;
646
647 for (i = 0; i < pages; ++i) {
648 dma_ops_domain_unmap(iommu, dma_dom, start);
649 start += PAGE_SIZE;
650 }
651
652 dma_ops_free_addresses(dma_dom, dma_addr, pages);
653}
654
655static dma_addr_t map_single(struct device *dev, phys_addr_t paddr,
656 size_t size, int dir)
657{
658 unsigned long flags;
659 struct amd_iommu *iommu;
660 struct protection_domain *domain;
661 u16 devid;
662 dma_addr_t addr;
663
664 get_device_resources(dev, &iommu, &domain, &devid);
665
666 if (iommu == NULL || domain == NULL)
667 return (dma_addr_t)paddr;
668
669 spin_lock_irqsave(&domain->lock, flags);
670 addr = __map_single(dev, iommu, domain->priv, paddr, size, dir);
671 if (addr == bad_dma_address)
672 goto out;
673
674 if (iommu_has_npcache(iommu))
675 iommu_flush_pages(iommu, domain->id, addr, size);
676
677 if (iommu->need_sync)
678 iommu_completion_wait(iommu);
679
680out:
681 spin_unlock_irqrestore(&domain->lock, flags);
682
683 return addr;
684}
685
686static void unmap_single(struct device *dev, dma_addr_t dma_addr,
687 size_t size, int dir)
688{
689 unsigned long flags;
690 struct amd_iommu *iommu;
691 struct protection_domain *domain;
692 u16 devid;
693
694 if (!get_device_resources(dev, &iommu, &domain, &devid))
695 return;
696
697 spin_lock_irqsave(&domain->lock, flags);
698
699 __unmap_single(iommu, domain->priv, dma_addr, size, dir);
700
701 iommu_flush_pages(iommu, domain->id, dma_addr, size);
702
703 if (iommu->need_sync)
704 iommu_completion_wait(iommu);
705
706 spin_unlock_irqrestore(&domain->lock, flags);
707}
708
709static int map_sg_no_iommu(struct device *dev, struct scatterlist *sglist,
710 int nelems, int dir)
711{
712 struct scatterlist *s;
713 int i;
714
715 for_each_sg(sglist, s, nelems, i) {
716 s->dma_address = (dma_addr_t)sg_phys(s);
717 s->dma_length = s->length;
718 }
719
720 return nelems;
721}
722
723static int map_sg(struct device *dev, struct scatterlist *sglist,
724 int nelems, int dir)
725{
726 unsigned long flags;
727 struct amd_iommu *iommu;
728 struct protection_domain *domain;
729 u16 devid;
730 int i;
731 struct scatterlist *s;
732 phys_addr_t paddr;
733 int mapped_elems = 0;
734
735 get_device_resources(dev, &iommu, &domain, &devid);
736
737 if (!iommu || !domain)
738 return map_sg_no_iommu(dev, sglist, nelems, dir);
739
740 spin_lock_irqsave(&domain->lock, flags);
741
742 for_each_sg(sglist, s, nelems, i) {
743 paddr = sg_phys(s);
744
745 s->dma_address = __map_single(dev, iommu, domain->priv,
746 paddr, s->length, dir);
747
748 if (s->dma_address) {
749 s->dma_length = s->length;
750 mapped_elems++;
751 } else
752 goto unmap;
753 if (iommu_has_npcache(iommu))
754 iommu_flush_pages(iommu, domain->id, s->dma_address,
755 s->dma_length);
756 }
757
758 if (iommu->need_sync)
759 iommu_completion_wait(iommu);
760
761out:
762 spin_unlock_irqrestore(&domain->lock, flags);
763
764 return mapped_elems;
765unmap:
766 for_each_sg(sglist, s, mapped_elems, i) {
767 if (s->dma_address)
768 __unmap_single(iommu, domain->priv, s->dma_address,
769 s->dma_length, dir);
770 s->dma_address = s->dma_length = 0;
771 }
772
773 mapped_elems = 0;
774
775 goto out;
776}
777
778static void unmap_sg(struct device *dev, struct scatterlist *sglist,
779 int nelems, int dir)
780{
781 unsigned long flags;
782 struct amd_iommu *iommu;
783 struct protection_domain *domain;
784 struct scatterlist *s;
785 u16 devid;
786 int i;
787
788 if (!get_device_resources(dev, &iommu, &domain, &devid))
789 return;
790
791 spin_lock_irqsave(&domain->lock, flags);
792
793 for_each_sg(sglist, s, nelems, i) {
794 __unmap_single(iommu, domain->priv, s->dma_address,
795 s->dma_length, dir);
796 iommu_flush_pages(iommu, domain->id, s->dma_address,
797 s->dma_length);
798 s->dma_address = s->dma_length = 0;
799 }
800
801 if (iommu->need_sync)
802 iommu_completion_wait(iommu);
803
804 spin_unlock_irqrestore(&domain->lock, flags);
805}
806
807static void *alloc_coherent(struct device *dev, size_t size,
808 dma_addr_t *dma_addr, gfp_t flag)
809{
810 unsigned long flags;
811 void *virt_addr;
812 struct amd_iommu *iommu;
813 struct protection_domain *domain;
814 u16 devid;
815 phys_addr_t paddr;
816
817 virt_addr = (void *)__get_free_pages(flag, get_order(size));
818 if (!virt_addr)
819 return 0;
820
821 memset(virt_addr, 0, size);
822 paddr = virt_to_phys(virt_addr);
823
824 get_device_resources(dev, &iommu, &domain, &devid);
825
826 if (!iommu || !domain) {
827 *dma_addr = (dma_addr_t)paddr;
828 return virt_addr;
829 }
830
831 spin_lock_irqsave(&domain->lock, flags);
832
833 *dma_addr = __map_single(dev, iommu, domain->priv, paddr,
834 size, DMA_BIDIRECTIONAL);
835
836 if (*dma_addr == bad_dma_address) {
837 free_pages((unsigned long)virt_addr, get_order(size));
838 virt_addr = NULL;
839 goto out;
840 }
841
842 if (iommu_has_npcache(iommu))
843 iommu_flush_pages(iommu, domain->id, *dma_addr, size);
844
845 if (iommu->need_sync)
846 iommu_completion_wait(iommu);
847
848out:
849 spin_unlock_irqrestore(&domain->lock, flags);
850
851 return virt_addr;
852}
853
854static void free_coherent(struct device *dev, size_t size,
855 void *virt_addr, dma_addr_t dma_addr)
856{
857 unsigned long flags;
858 struct amd_iommu *iommu;
859 struct protection_domain *domain;
860 u16 devid;
861
862 get_device_resources(dev, &iommu, &domain, &devid);
863
864 if (!iommu || !domain)
865 goto free_mem;
866
867 spin_lock_irqsave(&domain->lock, flags);
868
869 __unmap_single(iommu, domain->priv, dma_addr, size, DMA_BIDIRECTIONAL);
870 iommu_flush_pages(iommu, domain->id, dma_addr, size);
871
872 if (iommu->need_sync)
873 iommu_completion_wait(iommu);
874
875 spin_unlock_irqrestore(&domain->lock, flags);
876
877free_mem:
878 free_pages((unsigned long)virt_addr, get_order(size));
879}
880
881/*
882 * If the driver core informs the DMA layer if a driver grabs a device
883 * we don't need to preallocate the protection domains anymore.
884 * For now we have to.
885 */
886void prealloc_protection_domains(void)
887{
888 struct pci_dev *dev = NULL;
889 struct dma_ops_domain *dma_dom;
890 struct amd_iommu *iommu;
891 int order = amd_iommu_aperture_order;
892 u16 devid;
893
894 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
895 devid = (dev->bus->number << 8) | dev->devfn;
896 if (devid >= amd_iommu_last_bdf)
897 continue;
898 devid = amd_iommu_alias_table[devid];
899 if (domain_for_device(devid))
900 continue;
901 iommu = amd_iommu_rlookup_table[devid];
902 if (!iommu)
903 continue;
904 dma_dom = dma_ops_domain_alloc(iommu, order);
905 if (!dma_dom)
906 continue;
907 init_unity_mappings_for_device(dma_dom, devid);
908 set_device_domain(iommu, &dma_dom->domain, devid);
909 printk(KERN_INFO "AMD IOMMU: Allocated domain %d for device ",
910 dma_dom->domain.id);
911 print_devid(devid, 1);
912 }
913}
914
915static struct dma_mapping_ops amd_iommu_dma_ops = {
916 .alloc_coherent = alloc_coherent,
917 .free_coherent = free_coherent,
918 .map_single = map_single,
919 .unmap_single = unmap_single,
920 .map_sg = map_sg,
921 .unmap_sg = unmap_sg,
922};
923
924int __init amd_iommu_init_dma_ops(void)
925{
926 struct amd_iommu *iommu;
927 int order = amd_iommu_aperture_order;
928 int ret;
929
930 list_for_each_entry(iommu, &amd_iommu_list, list) {
931 iommu->default_dom = dma_ops_domain_alloc(iommu, order);
932 if (iommu->default_dom == NULL)
933 return -ENOMEM;
934 ret = iommu_init_unity_mappings(iommu);
935 if (ret)
936 goto free_domains;
937 }
938
939 if (amd_iommu_isolate)
940 prealloc_protection_domains();
941
942 iommu_detected = 1;
943 force_iommu = 1;
944 bad_dma_address = 0;
945#ifdef CONFIG_GART_IOMMU
946 gart_iommu_aperture_disabled = 1;
947 gart_iommu_aperture = 0;
948#endif
949
950 dma_ops = &amd_iommu_dma_ops;
951
952 return 0;
953
954free_domains:
955
956 list_for_each_entry(iommu, &amd_iommu_list, list) {
957 if (iommu->default_dom)
958 dma_ops_domain_free(iommu->default_dom);
959 }
960
961 return ret;
962}
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
new file mode 100644
index 000000000000..2a13e430437d
--- /dev/null
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -0,0 +1,875 @@
1/*
2 * Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
3 * Author: Joerg Roedel <joerg.roedel@amd.com>
4 * Leo Duran <leo.duran@amd.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#include <linux/pci.h>
21#include <linux/acpi.h>
22#include <linux/gfp.h>
23#include <linux/list.h>
24#include <linux/sysdev.h>
25#include <asm/pci-direct.h>
26#include <asm/amd_iommu_types.h>
27#include <asm/amd_iommu.h>
28#include <asm/gart.h>
29
30/*
31 * definitions for the ACPI scanning code
32 */
33#define UPDATE_LAST_BDF(x) do {\
34 if ((x) > amd_iommu_last_bdf) \
35 amd_iommu_last_bdf = (x); \
36 } while (0);
37
38#define DEVID(bus, devfn) (((bus) << 8) | (devfn))
39#define PCI_BUS(x) (((x) >> 8) & 0xff)
40#define IVRS_HEADER_LENGTH 48
41#define TBL_SIZE(x) (1 << (PAGE_SHIFT + get_order(amd_iommu_last_bdf * (x))))
42
43#define ACPI_IVHD_TYPE 0x10
44#define ACPI_IVMD_TYPE_ALL 0x20
45#define ACPI_IVMD_TYPE 0x21
46#define ACPI_IVMD_TYPE_RANGE 0x22
47
48#define IVHD_DEV_ALL 0x01
49#define IVHD_DEV_SELECT 0x02
50#define IVHD_DEV_SELECT_RANGE_START 0x03
51#define IVHD_DEV_RANGE_END 0x04
52#define IVHD_DEV_ALIAS 0x42
53#define IVHD_DEV_ALIAS_RANGE 0x43
54#define IVHD_DEV_EXT_SELECT 0x46
55#define IVHD_DEV_EXT_SELECT_RANGE 0x47
56
57#define IVHD_FLAG_HT_TUN_EN 0x00
58#define IVHD_FLAG_PASSPW_EN 0x01
59#define IVHD_FLAG_RESPASSPW_EN 0x02
60#define IVHD_FLAG_ISOC_EN 0x03
61
62#define IVMD_FLAG_EXCL_RANGE 0x08
63#define IVMD_FLAG_UNITY_MAP 0x01
64
65#define ACPI_DEVFLAG_INITPASS 0x01
66#define ACPI_DEVFLAG_EXTINT 0x02
67#define ACPI_DEVFLAG_NMI 0x04
68#define ACPI_DEVFLAG_SYSMGT1 0x10
69#define ACPI_DEVFLAG_SYSMGT2 0x20
70#define ACPI_DEVFLAG_LINT0 0x40
71#define ACPI_DEVFLAG_LINT1 0x80
72#define ACPI_DEVFLAG_ATSDIS 0x10000000
73
74struct ivhd_header {
75 u8 type;
76 u8 flags;
77 u16 length;
78 u16 devid;
79 u16 cap_ptr;
80 u64 mmio_phys;
81 u16 pci_seg;
82 u16 info;
83 u32 reserved;
84} __attribute__((packed));
85
86struct ivhd_entry {
87 u8 type;
88 u16 devid;
89 u8 flags;
90 u32 ext;
91} __attribute__((packed));
92
93struct ivmd_header {
94 u8 type;
95 u8 flags;
96 u16 length;
97 u16 devid;
98 u16 aux;
99 u64 resv;
100 u64 range_start;
101 u64 range_length;
102} __attribute__((packed));
103
104static int __initdata amd_iommu_detected;
105
106u16 amd_iommu_last_bdf;
107struct list_head amd_iommu_unity_map;
108unsigned amd_iommu_aperture_order = 26;
109int amd_iommu_isolate;
110
111struct list_head amd_iommu_list;
112struct dev_table_entry *amd_iommu_dev_table;
113u16 *amd_iommu_alias_table;
114struct amd_iommu **amd_iommu_rlookup_table;
115struct protection_domain **amd_iommu_pd_table;
116unsigned long *amd_iommu_pd_alloc_bitmap;
117
118static u32 dev_table_size;
119static u32 alias_table_size;
120static u32 rlookup_table_size;
121
122static void __init iommu_set_exclusion_range(struct amd_iommu *iommu)
123{
124 u64 start = iommu->exclusion_start & PAGE_MASK;
125 u64 limit = (start + iommu->exclusion_length) & PAGE_MASK;
126 u64 entry;
127
128 if (!iommu->exclusion_start)
129 return;
130
131 entry = start | MMIO_EXCL_ENABLE_MASK;
132 memcpy_toio(iommu->mmio_base + MMIO_EXCL_BASE_OFFSET,
133 &entry, sizeof(entry));
134
135 entry = limit;
136 memcpy_toio(iommu->mmio_base + MMIO_EXCL_LIMIT_OFFSET,
137 &entry, sizeof(entry));
138}
139
140static void __init iommu_set_device_table(struct amd_iommu *iommu)
141{
142 u32 entry;
143
144 BUG_ON(iommu->mmio_base == NULL);
145
146 entry = virt_to_phys(amd_iommu_dev_table);
147 entry |= (dev_table_size >> 12) - 1;
148 memcpy_toio(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET,
149 &entry, sizeof(entry));
150}
151
152static void __init iommu_feature_enable(struct amd_iommu *iommu, u8 bit)
153{
154 u32 ctrl;
155
156 ctrl = readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
157 ctrl |= (1 << bit);
158 writel(ctrl, iommu->mmio_base + MMIO_CONTROL_OFFSET);
159}
160
161static void __init iommu_feature_disable(struct amd_iommu *iommu, u8 bit)
162{
163 u32 ctrl;
164
165 ctrl = (u64)readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
166 ctrl &= ~(1 << bit);
167 writel(ctrl, iommu->mmio_base + MMIO_CONTROL_OFFSET);
168}
169
170void __init iommu_enable(struct amd_iommu *iommu)
171{
172 printk(KERN_INFO "AMD IOMMU: Enabling IOMMU at ");
173 print_devid(iommu->devid, 0);
174 printk(" cap 0x%hx\n", iommu->cap_ptr);
175
176 iommu_feature_enable(iommu, CONTROL_IOMMU_EN);
177}
178
179static u8 * __init iommu_map_mmio_space(u64 address)
180{
181 u8 *ret;
182
183 if (!request_mem_region(address, MMIO_REGION_LENGTH, "amd_iommu"))
184 return NULL;
185
186 ret = ioremap_nocache(address, MMIO_REGION_LENGTH);
187 if (ret != NULL)
188 return ret;
189
190 release_mem_region(address, MMIO_REGION_LENGTH);
191
192 return NULL;
193}
194
195static void __init iommu_unmap_mmio_space(struct amd_iommu *iommu)
196{
197 if (iommu->mmio_base)
198 iounmap(iommu->mmio_base);
199 release_mem_region(iommu->mmio_phys, MMIO_REGION_LENGTH);
200}
201
202static int __init find_last_devid_on_pci(int bus, int dev, int fn, int cap_ptr)
203{
204 u32 cap;
205
206 cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);
207 UPDATE_LAST_BDF(DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
208
209 return 0;
210}
211
212static int __init find_last_devid_from_ivhd(struct ivhd_header *h)
213{
214 u8 *p = (void *)h, *end = (void *)h;
215 struct ivhd_entry *dev;
216
217 p += sizeof(*h);
218 end += h->length;
219
220 find_last_devid_on_pci(PCI_BUS(h->devid),
221 PCI_SLOT(h->devid),
222 PCI_FUNC(h->devid),
223 h->cap_ptr);
224
225 while (p < end) {
226 dev = (struct ivhd_entry *)p;
227 switch (dev->type) {
228 case IVHD_DEV_SELECT:
229 case IVHD_DEV_RANGE_END:
230 case IVHD_DEV_ALIAS:
231 case IVHD_DEV_EXT_SELECT:
232 UPDATE_LAST_BDF(dev->devid);
233 break;
234 default:
235 break;
236 }
237 p += 0x04 << (*p >> 6);
238 }
239
240 WARN_ON(p != end);
241
242 return 0;
243}
244
245static int __init find_last_devid_acpi(struct acpi_table_header *table)
246{
247 int i;
248 u8 checksum = 0, *p = (u8 *)table, *end = (u8 *)table;
249 struct ivhd_header *h;
250
251 /*
252 * Validate checksum here so we don't need to do it when
253 * we actually parse the table
254 */
255 for (i = 0; i < table->length; ++i)
256 checksum += p[i];
257 if (checksum != 0)
258 /* ACPI table corrupt */
259 return -ENODEV;
260
261 p += IVRS_HEADER_LENGTH;
262
263 end += table->length;
264 while (p < end) {
265 h = (struct ivhd_header *)p;
266 switch (h->type) {
267 case ACPI_IVHD_TYPE:
268 find_last_devid_from_ivhd(h);
269 break;
270 default:
271 break;
272 }
273 p += h->length;
274 }
275 WARN_ON(p != end);
276
277 return 0;
278}
279
280static u8 * __init alloc_command_buffer(struct amd_iommu *iommu)
281{
282 u8 *cmd_buf = (u8 *)__get_free_pages(GFP_KERNEL,
283 get_order(CMD_BUFFER_SIZE));
284 u64 entry = 0;
285
286 if (cmd_buf == NULL)
287 return NULL;
288
289 iommu->cmd_buf_size = CMD_BUFFER_SIZE;
290
291 memset(cmd_buf, 0, CMD_BUFFER_SIZE);
292
293 entry = (u64)virt_to_phys(cmd_buf);
294 entry |= MMIO_CMD_SIZE_512;
295 memcpy_toio(iommu->mmio_base + MMIO_CMD_BUF_OFFSET,
296 &entry, sizeof(entry));
297
298 iommu_feature_enable(iommu, CONTROL_CMDBUF_EN);
299
300 return cmd_buf;
301}
302
303static void __init free_command_buffer(struct amd_iommu *iommu)
304{
305 if (iommu->cmd_buf)
306 free_pages((unsigned long)iommu->cmd_buf,
307 get_order(CMD_BUFFER_SIZE));
308}
309
310static void set_dev_entry_bit(u16 devid, u8 bit)
311{
312 int i = (bit >> 5) & 0x07;
313 int _bit = bit & 0x1f;
314
315 amd_iommu_dev_table[devid].data[i] |= (1 << _bit);
316}
317
318static void __init set_dev_entry_from_acpi(u16 devid, u32 flags, u32 ext_flags)
319{
320 if (flags & ACPI_DEVFLAG_INITPASS)
321 set_dev_entry_bit(devid, DEV_ENTRY_INIT_PASS);
322 if (flags & ACPI_DEVFLAG_EXTINT)
323 set_dev_entry_bit(devid, DEV_ENTRY_EINT_PASS);
324 if (flags & ACPI_DEVFLAG_NMI)
325 set_dev_entry_bit(devid, DEV_ENTRY_NMI_PASS);
326 if (flags & ACPI_DEVFLAG_SYSMGT1)
327 set_dev_entry_bit(devid, DEV_ENTRY_SYSMGT1);
328 if (flags & ACPI_DEVFLAG_SYSMGT2)
329 set_dev_entry_bit(devid, DEV_ENTRY_SYSMGT2);
330 if (flags & ACPI_DEVFLAG_LINT0)
331 set_dev_entry_bit(devid, DEV_ENTRY_LINT0_PASS);
332 if (flags & ACPI_DEVFLAG_LINT1)
333 set_dev_entry_bit(devid, DEV_ENTRY_LINT1_PASS);
334}
335
336static void __init set_iommu_for_device(struct amd_iommu *iommu, u16 devid)
337{
338 amd_iommu_rlookup_table[devid] = iommu;
339}
340
341static void __init set_device_exclusion_range(u16 devid, struct ivmd_header *m)
342{
343 struct amd_iommu *iommu = amd_iommu_rlookup_table[devid];
344
345 if (!(m->flags & IVMD_FLAG_EXCL_RANGE))
346 return;
347
348 if (iommu) {
349 set_dev_entry_bit(m->devid, DEV_ENTRY_EX);
350 iommu->exclusion_start = m->range_start;
351 iommu->exclusion_length = m->range_length;
352 }
353}
354
355static void __init init_iommu_from_pci(struct amd_iommu *iommu)
356{
357 int bus = PCI_BUS(iommu->devid);
358 int dev = PCI_SLOT(iommu->devid);
359 int fn = PCI_FUNC(iommu->devid);
360 int cap_ptr = iommu->cap_ptr;
361 u32 range;
362
363 iommu->cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_CAP_HDR_OFFSET);
364
365 range = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);
366 iommu->first_device = DEVID(MMIO_GET_BUS(range), MMIO_GET_FD(range));
367 iommu->last_device = DEVID(MMIO_GET_BUS(range), MMIO_GET_LD(range));
368}
369
370static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
371 struct ivhd_header *h)
372{
373 u8 *p = (u8 *)h;
374 u8 *end = p, flags = 0;
375 u16 dev_i, devid = 0, devid_start = 0, devid_to = 0;
376 u32 ext_flags = 0;
377 bool alias = 0;
378 struct ivhd_entry *e;
379
380 /*
381 * First set the recommended feature enable bits from ACPI
382 * into the IOMMU control registers
383 */
384 h->flags & IVHD_FLAG_HT_TUN_EN ?
385 iommu_feature_enable(iommu, CONTROL_HT_TUN_EN) :
386 iommu_feature_disable(iommu, CONTROL_HT_TUN_EN);
387
388 h->flags & IVHD_FLAG_PASSPW_EN ?
389 iommu_feature_enable(iommu, CONTROL_PASSPW_EN) :
390 iommu_feature_disable(iommu, CONTROL_PASSPW_EN);
391
392 h->flags & IVHD_FLAG_RESPASSPW_EN ?
393 iommu_feature_enable(iommu, CONTROL_RESPASSPW_EN) :
394 iommu_feature_disable(iommu, CONTROL_RESPASSPW_EN);
395
396 h->flags & IVHD_FLAG_ISOC_EN ?
397 iommu_feature_enable(iommu, CONTROL_ISOC_EN) :
398 iommu_feature_disable(iommu, CONTROL_ISOC_EN);
399
400 /*
401 * make IOMMU memory accesses cache coherent
402 */
403 iommu_feature_enable(iommu, CONTROL_COHERENT_EN);
404
405 /*
406 * Done. Now parse the device entries
407 */
408 p += sizeof(struct ivhd_header);
409 end += h->length;
410
411 while (p < end) {
412 e = (struct ivhd_entry *)p;
413 switch (e->type) {
414 case IVHD_DEV_ALL:
415 for (dev_i = iommu->first_device;
416 dev_i <= iommu->last_device; ++dev_i)
417 set_dev_entry_from_acpi(dev_i, e->flags, 0);
418 break;
419 case IVHD_DEV_SELECT:
420 devid = e->devid;
421 set_dev_entry_from_acpi(devid, e->flags, 0);
422 break;
423 case IVHD_DEV_SELECT_RANGE_START:
424 devid_start = e->devid;
425 flags = e->flags;
426 ext_flags = 0;
427 alias = 0;
428 break;
429 case IVHD_DEV_ALIAS:
430 devid = e->devid;
431 devid_to = e->ext >> 8;
432 set_dev_entry_from_acpi(devid, e->flags, 0);
433 amd_iommu_alias_table[devid] = devid_to;
434 break;
435 case IVHD_DEV_ALIAS_RANGE:
436 devid_start = e->devid;
437 flags = e->flags;
438 devid_to = e->ext >> 8;
439 ext_flags = 0;
440 alias = 1;
441 break;
442 case IVHD_DEV_EXT_SELECT:
443 devid = e->devid;
444 set_dev_entry_from_acpi(devid, e->flags, e->ext);
445 break;
446 case IVHD_DEV_EXT_SELECT_RANGE:
447 devid_start = e->devid;
448 flags = e->flags;
449 ext_flags = e->ext;
450 alias = 0;
451 break;
452 case IVHD_DEV_RANGE_END:
453 devid = e->devid;
454 for (dev_i = devid_start; dev_i <= devid; ++dev_i) {
455 if (alias)
456 amd_iommu_alias_table[dev_i] = devid_to;
457 set_dev_entry_from_acpi(
458 amd_iommu_alias_table[dev_i],
459 flags, ext_flags);
460 }
461 break;
462 default:
463 break;
464 }
465
466 p += 0x04 << (e->type >> 6);
467 }
468}
469
470static int __init init_iommu_devices(struct amd_iommu *iommu)
471{
472 u16 i;
473
474 for (i = iommu->first_device; i <= iommu->last_device; ++i)
475 set_iommu_for_device(iommu, i);
476
477 return 0;
478}
479
480static void __init free_iommu_one(struct amd_iommu *iommu)
481{
482 free_command_buffer(iommu);
483 iommu_unmap_mmio_space(iommu);
484}
485
486static void __init free_iommu_all(void)
487{
488 struct amd_iommu *iommu, *next;
489
490 list_for_each_entry_safe(iommu, next, &amd_iommu_list, list) {
491 list_del(&iommu->list);
492 free_iommu_one(iommu);
493 kfree(iommu);
494 }
495}
496
497static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
498{
499 spin_lock_init(&iommu->lock);
500 list_add_tail(&iommu->list, &amd_iommu_list);
501
502 /*
503 * Copy data from ACPI table entry to the iommu struct
504 */
505 iommu->devid = h->devid;
506 iommu->cap_ptr = h->cap_ptr;
507 iommu->mmio_phys = h->mmio_phys;
508 iommu->mmio_base = iommu_map_mmio_space(h->mmio_phys);
509 if (!iommu->mmio_base)
510 return -ENOMEM;
511
512 iommu_set_device_table(iommu);
513 iommu->cmd_buf = alloc_command_buffer(iommu);
514 if (!iommu->cmd_buf)
515 return -ENOMEM;
516
517 init_iommu_from_pci(iommu);
518 init_iommu_from_acpi(iommu, h);
519 init_iommu_devices(iommu);
520
521 return 0;
522}
523
524static int __init init_iommu_all(struct acpi_table_header *table)
525{
526 u8 *p = (u8 *)table, *end = (u8 *)table;
527 struct ivhd_header *h;
528 struct amd_iommu *iommu;
529 int ret;
530
531 INIT_LIST_HEAD(&amd_iommu_list);
532
533 end += table->length;
534 p += IVRS_HEADER_LENGTH;
535
536 while (p < end) {
537 h = (struct ivhd_header *)p;
538 switch (*p) {
539 case ACPI_IVHD_TYPE:
540 iommu = kzalloc(sizeof(struct amd_iommu), GFP_KERNEL);
541 if (iommu == NULL)
542 return -ENOMEM;
543 ret = init_iommu_one(iommu, h);
544 if (ret)
545 return ret;
546 break;
547 default:
548 break;
549 }
550 p += h->length;
551
552 }
553 WARN_ON(p != end);
554
555 return 0;
556}
557
558static void __init free_unity_maps(void)
559{
560 struct unity_map_entry *entry, *next;
561
562 list_for_each_entry_safe(entry, next, &amd_iommu_unity_map, list) {
563 list_del(&entry->list);
564 kfree(entry);
565 }
566}
567
568static int __init init_exclusion_range(struct ivmd_header *m)
569{
570 int i;
571
572 switch (m->type) {
573 case ACPI_IVMD_TYPE:
574 set_device_exclusion_range(m->devid, m);
575 break;
576 case ACPI_IVMD_TYPE_ALL:
577 for (i = 0; i < amd_iommu_last_bdf; ++i)
578 set_device_exclusion_range(i, m);
579 break;
580 case ACPI_IVMD_TYPE_RANGE:
581 for (i = m->devid; i <= m->aux; ++i)
582 set_device_exclusion_range(i, m);
583 break;
584 default:
585 break;
586 }
587
588 return 0;
589}
590
591static int __init init_unity_map_range(struct ivmd_header *m)
592{
593 struct unity_map_entry *e = 0;
594
595 e = kzalloc(sizeof(*e), GFP_KERNEL);
596 if (e == NULL)
597 return -ENOMEM;
598
599 switch (m->type) {
600 default:
601 case ACPI_IVMD_TYPE:
602 e->devid_start = e->devid_end = m->devid;
603 break;
604 case ACPI_IVMD_TYPE_ALL:
605 e->devid_start = 0;
606 e->devid_end = amd_iommu_last_bdf;
607 break;
608 case ACPI_IVMD_TYPE_RANGE:
609 e->devid_start = m->devid;
610 e->devid_end = m->aux;
611 break;
612 }
613 e->address_start = PAGE_ALIGN(m->range_start);
614 e->address_end = e->address_start + PAGE_ALIGN(m->range_length);
615 e->prot = m->flags >> 1;
616
617 list_add_tail(&e->list, &amd_iommu_unity_map);
618
619 return 0;
620}
621
622static int __init init_memory_definitions(struct acpi_table_header *table)
623{
624 u8 *p = (u8 *)table, *end = (u8 *)table;
625 struct ivmd_header *m;
626
627 INIT_LIST_HEAD(&amd_iommu_unity_map);
628
629 end += table->length;
630 p += IVRS_HEADER_LENGTH;
631
632 while (p < end) {
633 m = (struct ivmd_header *)p;
634 if (m->flags & IVMD_FLAG_EXCL_RANGE)
635 init_exclusion_range(m);
636 else if (m->flags & IVMD_FLAG_UNITY_MAP)
637 init_unity_map_range(m);
638
639 p += m->length;
640 }
641
642 return 0;
643}
644
645static void __init enable_iommus(void)
646{
647 struct amd_iommu *iommu;
648
649 list_for_each_entry(iommu, &amd_iommu_list, list) {
650 iommu_set_exclusion_range(iommu);
651 iommu_enable(iommu);
652 }
653}
654
655/*
656 * Suspend/Resume support
657 * disable suspend until real resume implemented
658 */
659
660static int amd_iommu_resume(struct sys_device *dev)
661{
662 return 0;
663}
664
665static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state)
666{
667 return -EINVAL;
668}
669
670static struct sysdev_class amd_iommu_sysdev_class = {
671 .name = "amd_iommu",
672 .suspend = amd_iommu_suspend,
673 .resume = amd_iommu_resume,
674};
675
676static struct sys_device device_amd_iommu = {
677 .id = 0,
678 .cls = &amd_iommu_sysdev_class,
679};
680
681int __init amd_iommu_init(void)
682{
683 int i, ret = 0;
684
685
686 if (no_iommu) {
687 printk(KERN_INFO "AMD IOMMU disabled by kernel command line\n");
688 return 0;
689 }
690
691 if (!amd_iommu_detected)
692 return -ENODEV;
693
694 /*
695 * First parse ACPI tables to find the largest Bus/Dev/Func
696 * we need to handle. Upon this information the shared data
697 * structures for the IOMMUs in the system will be allocated
698 */
699 if (acpi_table_parse("IVRS", find_last_devid_acpi) != 0)
700 return -ENODEV;
701
702 dev_table_size = TBL_SIZE(DEV_TABLE_ENTRY_SIZE);
703 alias_table_size = TBL_SIZE(ALIAS_TABLE_ENTRY_SIZE);
704 rlookup_table_size = TBL_SIZE(RLOOKUP_TABLE_ENTRY_SIZE);
705
706 ret = -ENOMEM;
707
708 /* Device table - directly used by all IOMMUs */
709 amd_iommu_dev_table = (void *)__get_free_pages(GFP_KERNEL,
710 get_order(dev_table_size));
711 if (amd_iommu_dev_table == NULL)
712 goto out;
713
714 /*
715 * Alias table - map PCI Bus/Dev/Func to Bus/Dev/Func the
716 * IOMMU see for that device
717 */
718 amd_iommu_alias_table = (void *)__get_free_pages(GFP_KERNEL,
719 get_order(alias_table_size));
720 if (amd_iommu_alias_table == NULL)
721 goto free;
722
723 /* IOMMU rlookup table - find the IOMMU for a specific device */
724 amd_iommu_rlookup_table = (void *)__get_free_pages(GFP_KERNEL,
725 get_order(rlookup_table_size));
726 if (amd_iommu_rlookup_table == NULL)
727 goto free;
728
729 /*
730 * Protection Domain table - maps devices to protection domains
731 * This table has the same size as the rlookup_table
732 */
733 amd_iommu_pd_table = (void *)__get_free_pages(GFP_KERNEL,
734 get_order(rlookup_table_size));
735 if (amd_iommu_pd_table == NULL)
736 goto free;
737
738 amd_iommu_pd_alloc_bitmap = (void *)__get_free_pages(GFP_KERNEL,
739 get_order(MAX_DOMAIN_ID/8));
740 if (amd_iommu_pd_alloc_bitmap == NULL)
741 goto free;
742
743 /*
744 * memory is allocated now; initialize the device table with all zeroes
745 * and let all alias entries point to itself
746 */
747 memset(amd_iommu_dev_table, 0, dev_table_size);
748 for (i = 0; i < amd_iommu_last_bdf; ++i)
749 amd_iommu_alias_table[i] = i;
750
751 memset(amd_iommu_pd_table, 0, rlookup_table_size);
752 memset(amd_iommu_pd_alloc_bitmap, 0, MAX_DOMAIN_ID / 8);
753
754 /*
755 * never allocate domain 0 because its used as the non-allocated and
756 * error value placeholder
757 */
758 amd_iommu_pd_alloc_bitmap[0] = 1;
759
760 /*
761 * now the data structures are allocated and basically initialized
762 * start the real acpi table scan
763 */
764 ret = -ENODEV;
765 if (acpi_table_parse("IVRS", init_iommu_all) != 0)
766 goto free;
767
768 if (acpi_table_parse("IVRS", init_memory_definitions) != 0)
769 goto free;
770
771 ret = amd_iommu_init_dma_ops();
772 if (ret)
773 goto free;
774
775 ret = sysdev_class_register(&amd_iommu_sysdev_class);
776 if (ret)
777 goto free;
778
779 ret = sysdev_register(&device_amd_iommu);
780 if (ret)
781 goto free;
782
783 enable_iommus();
784
785 printk(KERN_INFO "AMD IOMMU: aperture size is %d MB\n",
786 (1 << (amd_iommu_aperture_order-20)));
787
788 printk(KERN_INFO "AMD IOMMU: device isolation ");
789 if (amd_iommu_isolate)
790 printk("enabled\n");
791 else
792 printk("disabled\n");
793
794out:
795 return ret;
796
797free:
798 if (amd_iommu_pd_alloc_bitmap)
799 free_pages((unsigned long)amd_iommu_pd_alloc_bitmap, 1);
800
801 if (amd_iommu_pd_table)
802 free_pages((unsigned long)amd_iommu_pd_table,
803 get_order(rlookup_table_size));
804
805 if (amd_iommu_rlookup_table)
806 free_pages((unsigned long)amd_iommu_rlookup_table,
807 get_order(rlookup_table_size));
808
809 if (amd_iommu_alias_table)
810 free_pages((unsigned long)amd_iommu_alias_table,
811 get_order(alias_table_size));
812
813 if (amd_iommu_dev_table)
814 free_pages((unsigned long)amd_iommu_dev_table,
815 get_order(dev_table_size));
816
817 free_iommu_all();
818
819 free_unity_maps();
820
821 goto out;
822}
823
824static int __init early_amd_iommu_detect(struct acpi_table_header *table)
825{
826 return 0;
827}
828
829void __init amd_iommu_detect(void)
830{
831 if (swiotlb || no_iommu || iommu_detected)
832 return;
833
834 if (acpi_table_parse("IVRS", early_amd_iommu_detect) == 0) {
835 iommu_detected = 1;
836 amd_iommu_detected = 1;
837#ifdef CONFIG_GART_IOMMU
838 gart_iommu_aperture_disabled = 1;
839 gart_iommu_aperture = 0;
840#endif
841 }
842}
843
844static int __init parse_amd_iommu_options(char *str)
845{
846 for (; *str; ++str) {
847 if (strcmp(str, "isolate") == 0)
848 amd_iommu_isolate = 1;
849 }
850
851 return 1;
852}
853
854static int __init parse_amd_iommu_size_options(char *str)
855{
856 for (; *str; ++str) {
857 if (strcmp(str, "32M") == 0)
858 amd_iommu_aperture_order = 25;
859 if (strcmp(str, "64M") == 0)
860 amd_iommu_aperture_order = 26;
861 if (strcmp(str, "128M") == 0)
862 amd_iommu_aperture_order = 27;
863 if (strcmp(str, "256M") == 0)
864 amd_iommu_aperture_order = 28;
865 if (strcmp(str, "512M") == 0)
866 amd_iommu_aperture_order = 29;
867 if (strcmp(str, "1G") == 0)
868 amd_iommu_aperture_order = 30;
869 }
870
871 return 1;
872}
873
874__setup("amd_iommu=", parse_amd_iommu_options);
875__setup("amd_iommu_size=", parse_amd_iommu_size_options);
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 479926d9e004..9f907806c1a5 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -35,6 +35,18 @@ int fallback_aper_force __initdata;
35 35
36int fix_aperture __initdata = 1; 36int fix_aperture __initdata = 1;
37 37
38struct bus_dev_range {
39 int bus;
40 int dev_base;
41 int dev_limit;
42};
43
44static struct bus_dev_range bus_dev_ranges[] __initdata = {
45 { 0x00, 0x18, 0x20},
46 { 0xff, 0x00, 0x20},
47 { 0xfe, 0x00, 0x20}
48};
49
38static struct resource gart_resource = { 50static struct resource gart_resource = {
39 .name = "GART", 51 .name = "GART",
40 .flags = IORESOURCE_MEM, 52 .flags = IORESOURCE_MEM,
@@ -55,8 +67,9 @@ static u32 __init allocate_aperture(void)
55 u32 aper_size; 67 u32 aper_size;
56 void *p; 68 void *p;
57 69
58 if (fallback_aper_order > 7) 70 /* aper_size should <= 1G */
59 fallback_aper_order = 7; 71 if (fallback_aper_order > 5)
72 fallback_aper_order = 5;
60 aper_size = (32 * 1024 * 1024) << fallback_aper_order; 73 aper_size = (32 * 1024 * 1024) << fallback_aper_order;
61 74
62 /* 75 /*
@@ -65,7 +78,20 @@ static u32 __init allocate_aperture(void)
65 * memory. Unfortunately we cannot move it up because that would 78 * memory. Unfortunately we cannot move it up because that would
66 * make the IOMMU useless. 79 * make the IOMMU useless.
67 */ 80 */
68 p = __alloc_bootmem_nopanic(aper_size, aper_size, 0); 81 /*
82 * using 512M as goal, in case kexec will load kernel_big
83 * that will do the on position decompress, and could overlap with
84 * that positon with gart that is used.
85 * sequende:
86 * kernel_small
87 * ==> kexec (with kdump trigger path or previous doesn't shutdown gart)
88 * ==> kernel_small(gart area become e820_reserved)
89 * ==> kexec (with kdump trigger path or previous doesn't shutdown gart)
90 * ==> kerne_big (uncompressed size will be big than 64M or 128M)
91 * so don't use 512M below as gart iommu, leave the space for kernel
92 * code for safe
93 */
94 p = __alloc_bootmem_nopanic(aper_size, aper_size, 512ULL<<20);
69 if (!p || __pa(p)+aper_size > 0xffffffff) { 95 if (!p || __pa(p)+aper_size > 0xffffffff) {
70 printk(KERN_ERR 96 printk(KERN_ERR
71 "Cannot allocate aperture memory hole (%p,%uK)\n", 97 "Cannot allocate aperture memory hole (%p,%uK)\n",
@@ -83,69 +109,53 @@ static u32 __init allocate_aperture(void)
83 return (u32)__pa(p); 109 return (u32)__pa(p);
84} 110}
85 111
86static int __init aperture_valid(u64 aper_base, u32 aper_size)
87{
88 if (!aper_base)
89 return 0;
90
91 if (aper_base + aper_size > 0x100000000UL) {
92 printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n");
93 return 0;
94 }
95 if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) {
96 printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n");
97 return 0;
98 }
99 if (aper_size < 64*1024*1024) {
100 printk(KERN_ERR "Aperture too small (%d MB)\n", aper_size>>20);
101 return 0;
102 }
103
104 return 1;
105}
106 112
107/* Find a PCI capability */ 113/* Find a PCI capability */
108static __u32 __init find_cap(int num, int slot, int func, int cap) 114static u32 __init find_cap(int bus, int slot, int func, int cap)
109{ 115{
110 int bytes; 116 int bytes;
111 u8 pos; 117 u8 pos;
112 118
113 if (!(read_pci_config_16(num, slot, func, PCI_STATUS) & 119 if (!(read_pci_config_16(bus, slot, func, PCI_STATUS) &
114 PCI_STATUS_CAP_LIST)) 120 PCI_STATUS_CAP_LIST))
115 return 0; 121 return 0;
116 122
117 pos = read_pci_config_byte(num, slot, func, PCI_CAPABILITY_LIST); 123 pos = read_pci_config_byte(bus, slot, func, PCI_CAPABILITY_LIST);
118 for (bytes = 0; bytes < 48 && pos >= 0x40; bytes++) { 124 for (bytes = 0; bytes < 48 && pos >= 0x40; bytes++) {
119 u8 id; 125 u8 id;
120 126
121 pos &= ~3; 127 pos &= ~3;
122 id = read_pci_config_byte(num, slot, func, pos+PCI_CAP_LIST_ID); 128 id = read_pci_config_byte(bus, slot, func, pos+PCI_CAP_LIST_ID);
123 if (id == 0xff) 129 if (id == 0xff)
124 break; 130 break;
125 if (id == cap) 131 if (id == cap)
126 return pos; 132 return pos;
127 pos = read_pci_config_byte(num, slot, func, 133 pos = read_pci_config_byte(bus, slot, func,
128 pos+PCI_CAP_LIST_NEXT); 134 pos+PCI_CAP_LIST_NEXT);
129 } 135 }
130 return 0; 136 return 0;
131} 137}
132 138
133/* Read a standard AGPv3 bridge header */ 139/* Read a standard AGPv3 bridge header */
134static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order) 140static u32 __init read_agp(int bus, int slot, int func, int cap, u32 *order)
135{ 141{
136 u32 apsize; 142 u32 apsize;
137 u32 apsizereg; 143 u32 apsizereg;
138 int nbits; 144 int nbits;
139 u32 aper_low, aper_hi; 145 u32 aper_low, aper_hi;
140 u64 aper; 146 u64 aper;
147 u32 old_order;
141 148
142 printk(KERN_INFO "AGP bridge at %02x:%02x:%02x\n", num, slot, func); 149 printk(KERN_INFO "AGP bridge at %02x:%02x:%02x\n", bus, slot, func);
143 apsizereg = read_pci_config_16(num, slot, func, cap + 0x14); 150 apsizereg = read_pci_config_16(bus, slot, func, cap + 0x14);
144 if (apsizereg == 0xffffffff) { 151 if (apsizereg == 0xffffffff) {
145 printk(KERN_ERR "APSIZE in AGP bridge unreadable\n"); 152 printk(KERN_ERR "APSIZE in AGP bridge unreadable\n");
146 return 0; 153 return 0;
147 } 154 }
148 155
156 /* old_order could be the value from NB gart setting */
157 old_order = *order;
158
149 apsize = apsizereg & 0xfff; 159 apsize = apsizereg & 0xfff;
150 /* Some BIOS use weird encodings not in the AGPv3 table. */ 160 /* Some BIOS use weird encodings not in the AGPv3 table. */
151 if (apsize & 0xff) 161 if (apsize & 0xff)
@@ -155,14 +165,26 @@ static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
155 if ((int)*order < 0) /* < 32MB */ 165 if ((int)*order < 0) /* < 32MB */
156 *order = 0; 166 *order = 0;
157 167
158 aper_low = read_pci_config(num, slot, func, 0x10); 168 aper_low = read_pci_config(bus, slot, func, 0x10);
159 aper_hi = read_pci_config(num, slot, func, 0x14); 169 aper_hi = read_pci_config(bus, slot, func, 0x14);
160 aper = (aper_low & ~((1<<22)-1)) | ((u64)aper_hi << 32); 170 aper = (aper_low & ~((1<<22)-1)) | ((u64)aper_hi << 32);
161 171
172 /*
173 * On some sick chips, APSIZE is 0. It means it wants 4G
174 * so let double check that order, and lets trust AMD NB settings:
175 */
176 printk(KERN_INFO "Aperture from AGP @ %Lx old size %u MB\n",
177 aper, 32 << old_order);
178 if (aper + (32ULL<<(20 + *order)) > 0x100000000ULL) {
179 printk(KERN_INFO "Aperture size %u MB (APSIZE %x) is not right, using settings from NB\n",
180 32 << *order, apsizereg);
181 *order = old_order;
182 }
183
162 printk(KERN_INFO "Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n", 184 printk(KERN_INFO "Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n",
163 aper, 32 << *order, apsizereg); 185 aper, 32 << *order, apsizereg);
164 186
165 if (!aperture_valid(aper, (32*1024*1024) << *order)) 187 if (!aperture_valid(aper, (32*1024*1024) << *order, 32<<20))
166 return 0; 188 return 0;
167 return (u32)aper; 189 return (u32)aper;
168} 190}
@@ -180,17 +202,17 @@ static __u32 __init read_agp(int num, int slot, int func, int cap, u32 *order)
180 * the AGP bridges should be always an own bus on the HT hierarchy, 202 * the AGP bridges should be always an own bus on the HT hierarchy,
181 * but do it here for future safety. 203 * but do it here for future safety.
182 */ 204 */
183static __u32 __init search_agp_bridge(u32 *order, int *valid_agp) 205static u32 __init search_agp_bridge(u32 *order, int *valid_agp)
184{ 206{
185 int num, slot, func; 207 int bus, slot, func;
186 208
187 /* Poor man's PCI discovery */ 209 /* Poor man's PCI discovery */
188 for (num = 0; num < 256; num++) { 210 for (bus = 0; bus < 256; bus++) {
189 for (slot = 0; slot < 32; slot++) { 211 for (slot = 0; slot < 32; slot++) {
190 for (func = 0; func < 8; func++) { 212 for (func = 0; func < 8; func++) {
191 u32 class, cap; 213 u32 class, cap;
192 u8 type; 214 u8 type;
193 class = read_pci_config(num, slot, func, 215 class = read_pci_config(bus, slot, func,
194 PCI_CLASS_REVISION); 216 PCI_CLASS_REVISION);
195 if (class == 0xffffffff) 217 if (class == 0xffffffff)
196 break; 218 break;
@@ -199,17 +221,17 @@ static __u32 __init search_agp_bridge(u32 *order, int *valid_agp)
199 case PCI_CLASS_BRIDGE_HOST: 221 case PCI_CLASS_BRIDGE_HOST:
200 case PCI_CLASS_BRIDGE_OTHER: /* needed? */ 222 case PCI_CLASS_BRIDGE_OTHER: /* needed? */
201 /* AGP bridge? */ 223 /* AGP bridge? */
202 cap = find_cap(num, slot, func, 224 cap = find_cap(bus, slot, func,
203 PCI_CAP_ID_AGP); 225 PCI_CAP_ID_AGP);
204 if (!cap) 226 if (!cap)
205 break; 227 break;
206 *valid_agp = 1; 228 *valid_agp = 1;
207 return read_agp(num, slot, func, cap, 229 return read_agp(bus, slot, func, cap,
208 order); 230 order);
209 } 231 }
210 232
211 /* No multi-function device? */ 233 /* No multi-function device? */
212 type = read_pci_config_byte(num, slot, func, 234 type = read_pci_config_byte(bus, slot, func,
213 PCI_HEADER_TYPE); 235 PCI_HEADER_TYPE);
214 if (!(type & 0x80)) 236 if (!(type & 0x80))
215 break; 237 break;
@@ -249,36 +271,50 @@ void __init early_gart_iommu_check(void)
249 * or BIOS forget to put that in reserved. 271 * or BIOS forget to put that in reserved.
250 * try to update e820 to make that region as reserved. 272 * try to update e820 to make that region as reserved.
251 */ 273 */
252 int fix, num; 274 int i, fix, slot;
253 u32 ctl; 275 u32 ctl;
254 u32 aper_size = 0, aper_order = 0, last_aper_order = 0; 276 u32 aper_size = 0, aper_order = 0, last_aper_order = 0;
255 u64 aper_base = 0, last_aper_base = 0; 277 u64 aper_base = 0, last_aper_base = 0;
256 int aper_enabled = 0, last_aper_enabled = 0; 278 int aper_enabled = 0, last_aper_enabled = 0, last_valid = 0;
257 279
258 if (!early_pci_allowed()) 280 if (!early_pci_allowed())
259 return; 281 return;
260 282
283 /* This is mostly duplicate of iommu_hole_init */
261 fix = 0; 284 fix = 0;
262 for (num = 24; num < 32; num++) { 285 for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
263 if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00))) 286 int bus;
264 continue; 287 int dev_base, dev_limit;
265 288
266 ctl = read_pci_config(0, num, 3, 0x90); 289 bus = bus_dev_ranges[i].bus;
267 aper_enabled = ctl & 1; 290 dev_base = bus_dev_ranges[i].dev_base;
268 aper_order = (ctl >> 1) & 7; 291 dev_limit = bus_dev_ranges[i].dev_limit;
269 aper_size = (32 * 1024 * 1024) << aper_order; 292
270 aper_base = read_pci_config(0, num, 3, 0x94) & 0x7fff; 293 for (slot = dev_base; slot < dev_limit; slot++) {
271 aper_base <<= 25; 294 if (!early_is_k8_nb(read_pci_config(bus, slot, 3, 0x00)))
272 295 continue;
273 if ((last_aper_order && aper_order != last_aper_order) || 296
274 (last_aper_base && aper_base != last_aper_base) || 297 ctl = read_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL);
275 (last_aper_enabled && aper_enabled != last_aper_enabled)) { 298 aper_enabled = ctl & AMD64_GARTEN;
276 fix = 1; 299 aper_order = (ctl >> 1) & 7;
277 break; 300 aper_size = (32 * 1024 * 1024) << aper_order;
301 aper_base = read_pci_config(bus, slot, 3, AMD64_GARTAPERTUREBASE) & 0x7fff;
302 aper_base <<= 25;
303
304 if (last_valid) {
305 if ((aper_order != last_aper_order) ||
306 (aper_base != last_aper_base) ||
307 (aper_enabled != last_aper_enabled)) {
308 fix = 1;
309 break;
310 }
311 }
312
313 last_aper_order = aper_order;
314 last_aper_base = aper_base;
315 last_aper_enabled = aper_enabled;
316 last_valid = 1;
278 } 317 }
279 last_aper_order = aper_order;
280 last_aper_base = aper_base;
281 last_aper_enabled = aper_enabled;
282 } 318 }
283 319
284 if (!fix && !aper_enabled) 320 if (!fix && !aper_enabled)
@@ -290,32 +326,46 @@ void __init early_gart_iommu_check(void)
290 if (gart_fix_e820 && !fix && aper_enabled) { 326 if (gart_fix_e820 && !fix && aper_enabled) {
291 if (e820_any_mapped(aper_base, aper_base + aper_size, 327 if (e820_any_mapped(aper_base, aper_base + aper_size,
292 E820_RAM)) { 328 E820_RAM)) {
293 /* reserved it, so we can resuse it in second kernel */ 329 /* reserve it, so we can reuse it in second kernel */
294 printk(KERN_INFO "update e820 for GART\n"); 330 printk(KERN_INFO "update e820 for GART\n");
295 add_memory_region(aper_base, aper_size, E820_RESERVED); 331 e820_add_region(aper_base, aper_size, E820_RESERVED);
296 update_e820(); 332 update_e820();
297 } 333 }
298 return;
299 } 334 }
300 335
336 if (!fix)
337 return;
338
301 /* different nodes have different setting, disable them all at first*/ 339 /* different nodes have different setting, disable them all at first*/
302 for (num = 24; num < 32; num++) { 340 for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
303 if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00))) 341 int bus;
304 continue; 342 int dev_base, dev_limit;
343
344 bus = bus_dev_ranges[i].bus;
345 dev_base = bus_dev_ranges[i].dev_base;
346 dev_limit = bus_dev_ranges[i].dev_limit;
347
348 for (slot = dev_base; slot < dev_limit; slot++) {
349 if (!early_is_k8_nb(read_pci_config(bus, slot, 3, 0x00)))
350 continue;
305 351
306 ctl = read_pci_config(0, num, 3, 0x90); 352 ctl = read_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL);
307 ctl &= ~1; 353 ctl &= ~AMD64_GARTEN;
308 write_pci_config(0, num, 3, 0x90, ctl); 354 write_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL, ctl);
355 }
309 } 356 }
310 357
311} 358}
312 359
360static int __initdata printed_gart_size_msg;
361
313void __init gart_iommu_hole_init(void) 362void __init gart_iommu_hole_init(void)
314{ 363{
364 u32 agp_aper_base = 0, agp_aper_order = 0;
315 u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0; 365 u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
316 u64 aper_base, last_aper_base = 0; 366 u64 aper_base, last_aper_base = 0;
317 int fix, num, valid_agp = 0; 367 int fix, slot, valid_agp = 0;
318 int node; 368 int i, node;
319 369
320 if (gart_iommu_aperture_disabled || !fix_aperture || 370 if (gart_iommu_aperture_disabled || !fix_aperture ||
321 !early_pci_allowed()) 371 !early_pci_allowed())
@@ -323,38 +373,65 @@ void __init gart_iommu_hole_init(void)
323 373
324 printk(KERN_INFO "Checking aperture...\n"); 374 printk(KERN_INFO "Checking aperture...\n");
325 375
376 if (!fallback_aper_force)
377 agp_aper_base = search_agp_bridge(&agp_aper_order, &valid_agp);
378
326 fix = 0; 379 fix = 0;
327 node = 0; 380 node = 0;
328 for (num = 24; num < 32; num++) { 381 for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
329 if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00))) 382 int bus;
330 continue; 383 int dev_base, dev_limit;
331 384
332 iommu_detected = 1; 385 bus = bus_dev_ranges[i].bus;
333 gart_iommu_aperture = 1; 386 dev_base = bus_dev_ranges[i].dev_base;
334 387 dev_limit = bus_dev_ranges[i].dev_limit;
335 aper_order = (read_pci_config(0, num, 3, 0x90) >> 1) & 7; 388
336 aper_size = (32 * 1024 * 1024) << aper_order; 389 for (slot = dev_base; slot < dev_limit; slot++) {
337 aper_base = read_pci_config(0, num, 3, 0x94) & 0x7fff; 390 if (!early_is_k8_nb(read_pci_config(bus, slot, 3, 0x00)))
338 aper_base <<= 25; 391 continue;
339 392
340 printk(KERN_INFO "Node %d: aperture @ %Lx size %u MB\n", 393 iommu_detected = 1;
341 node, aper_base, aper_size >> 20); 394 gart_iommu_aperture = 1;
342 node++; 395
343 396 aper_order = (read_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL) >> 1) & 7;
344 if (!aperture_valid(aper_base, aper_size)) { 397 aper_size = (32 * 1024 * 1024) << aper_order;
345 fix = 1; 398 aper_base = read_pci_config(bus, slot, 3, AMD64_GARTAPERTUREBASE) & 0x7fff;
346 break; 399 aper_base <<= 25;
347 } 400
401 printk(KERN_INFO "Node %d: aperture @ %Lx size %u MB\n",
402 node, aper_base, aper_size >> 20);
403 node++;
404
405 if (!aperture_valid(aper_base, aper_size, 64<<20)) {
406 if (valid_agp && agp_aper_base &&
407 agp_aper_base == aper_base &&
408 agp_aper_order == aper_order) {
409 /* the same between two setting from NB and agp */
410 if (!no_iommu &&
411 max_pfn > MAX_DMA32_PFN &&
412 !printed_gart_size_msg) {
413 printk(KERN_ERR "you are using iommu with agp, but GART size is less than 64M\n");
414 printk(KERN_ERR "please increase GART size in your BIOS setup\n");
415 printk(KERN_ERR "if BIOS doesn't have that option, contact your HW vendor!\n");
416 printed_gart_size_msg = 1;
417 }
418 } else {
419 fix = 1;
420 goto out;
421 }
422 }
348 423
349 if ((last_aper_order && aper_order != last_aper_order) || 424 if ((last_aper_order && aper_order != last_aper_order) ||
350 (last_aper_base && aper_base != last_aper_base)) { 425 (last_aper_base && aper_base != last_aper_base)) {
351 fix = 1; 426 fix = 1;
352 break; 427 goto out;
428 }
429 last_aper_order = aper_order;
430 last_aper_base = aper_base;
353 } 431 }
354 last_aper_order = aper_order;
355 last_aper_base = aper_base;
356 } 432 }
357 433
434out:
358 if (!fix && !fallback_aper_force) { 435 if (!fix && !fallback_aper_force) {
359 if (last_aper_base) { 436 if (last_aper_base) {
360 unsigned long n = (32 * 1024 * 1024) << last_aper_order; 437 unsigned long n = (32 * 1024 * 1024) << last_aper_order;
@@ -364,14 +441,16 @@ void __init gart_iommu_hole_init(void)
364 return; 441 return;
365 } 442 }
366 443
367 if (!fallback_aper_force) 444 if (!fallback_aper_force) {
368 aper_alloc = search_agp_bridge(&aper_order, &valid_agp); 445 aper_alloc = agp_aper_base;
446 aper_order = agp_aper_order;
447 }
369 448
370 if (aper_alloc) { 449 if (aper_alloc) {
371 /* Got the aperture from the AGP bridge */ 450 /* Got the aperture from the AGP bridge */
372 } else if (swiotlb && !valid_agp) { 451 } else if (swiotlb && !valid_agp) {
373 /* Do nothing */ 452 /* Do nothing */
374 } else if ((!no_iommu && end_pfn > MAX_DMA32_PFN) || 453 } else if ((!no_iommu && max_pfn > MAX_DMA32_PFN) ||
375 force_iommu || 454 force_iommu ||
376 valid_agp || 455 valid_agp ||
377 fallback_aper_force) { 456 fallback_aper_force) {
@@ -401,16 +480,24 @@ void __init gart_iommu_hole_init(void)
401 } 480 }
402 481
403 /* Fix up the north bridges */ 482 /* Fix up the north bridges */
404 for (num = 24; num < 32; num++) { 483 for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
405 if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00))) 484 int bus;
406 continue; 485 int dev_base, dev_limit;
407 486
408 /* 487 bus = bus_dev_ranges[i].bus;
409 * Don't enable translation yet. That is done later. 488 dev_base = bus_dev_ranges[i].dev_base;
410 * Assume this BIOS didn't initialise the GART so 489 dev_limit = bus_dev_ranges[i].dev_limit;
411 * just overwrite all previous bits 490 for (slot = dev_base; slot < dev_limit; slot++) {
412 */ 491 if (!early_is_k8_nb(read_pci_config(bus, slot, 3, 0x00)))
413 write_pci_config(0, num, 3, 0x90, aper_order<<1); 492 continue;
414 write_pci_config(0, num, 3, 0x94, aper_alloc>>25); 493
494 /* Don't enable translation yet. That is done later.
495 Assume this BIOS didn't initialise the GART so
496 just overwrite all previous bits */
497 write_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL, aper_order << 1);
498 write_pci_config(bus, slot, 3, AMD64_GARTAPERTUREBASE, aper_alloc >> 25);
499 }
415 } 500 }
501
502 set_up_gart_resume(aper_order, aper_alloc);
416} 503}
diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 4b99b1bdeb6c..a437d027f20b 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -52,30 +52,41 @@
52 52
53unsigned long mp_lapic_addr; 53unsigned long mp_lapic_addr;
54 54
55DEFINE_PER_CPU(u16, x86_bios_cpu_apicid) = BAD_APICID;
56EXPORT_PER_CPU_SYMBOL(x86_bios_cpu_apicid);
57
58/* 55/*
59 * Knob to control our willingness to enable the local APIC. 56 * Knob to control our willingness to enable the local APIC.
60 * 57 *
61 * -1=force-disable, +1=force-enable 58 * +1=force-enable
62 */ 59 */
63static int enable_local_apic __initdata; 60static int force_enable_local_apic;
61int disable_apic;
64 62
65/* Local APIC timer verification ok */ 63/* Local APIC timer verification ok */
66static int local_apic_timer_verify_ok; 64static int local_apic_timer_verify_ok;
67/* Disable local APIC timer from the kernel commandline or via dmi quirk 65/* Disable local APIC timer from the kernel commandline or via dmi quirk */
68 or using CPU MSR check */ 66static int local_apic_timer_disabled;
69int local_apic_timer_disabled;
70/* Local APIC timer works in C2 */ 67/* Local APIC timer works in C2 */
71int local_apic_timer_c2_ok; 68int local_apic_timer_c2_ok;
72EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok); 69EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
73 70
71int first_system_vector = 0xfe;
72
73char system_vectors[NR_VECTORS] = { [0 ... NR_VECTORS-1] = SYS_VECTOR_FREE};
74
74/* 75/*
75 * Debug level, exported for io_apic.c 76 * Debug level, exported for io_apic.c
76 */ 77 */
77int apic_verbosity; 78int apic_verbosity;
78 79
80int pic_mode;
81
82/* Have we found an MP table */
83int smp_found_config;
84
85static struct resource lapic_resource = {
86 .name = "Local APIC",
87 .flags = IORESOURCE_MEM | IORESOURCE_BUSY,
88};
89
79static unsigned int calibration_result; 90static unsigned int calibration_result;
80 91
81static int lapic_next_event(unsigned long delta, 92static int lapic_next_event(unsigned long delta,
@@ -545,7 +556,7 @@ void __init setup_boot_APIC_clock(void)
545 lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY; 556 lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY;
546 else 557 else
547 printk(KERN_WARNING "APIC timer registered as dummy," 558 printk(KERN_WARNING "APIC timer registered as dummy,"
548 " due to nmi_watchdog=1!\n"); 559 " due to nmi_watchdog=%d!\n", nmi_watchdog);
549 } 560 }
550 561
551 /* Setup the lapic or request the broadcast */ 562 /* Setup the lapic or request the broadcast */
@@ -963,7 +974,7 @@ void __cpuinit setup_local_APIC(void)
963 * Double-check whether this APIC is really registered. 974 * Double-check whether this APIC is really registered.
964 */ 975 */
965 if (!apic_id_registered()) 976 if (!apic_id_registered())
966 BUG(); 977 WARN_ON_ONCE(1);
967 978
968 /* 979 /*
969 * Intel recommends to set DFR, LDR and TPR before enabling 980 * Intel recommends to set DFR, LDR and TPR before enabling
@@ -1094,7 +1105,7 @@ static int __init detect_init_APIC(void)
1094 u32 h, l, features; 1105 u32 h, l, features;
1095 1106
1096 /* Disabled by kernel option? */ 1107 /* Disabled by kernel option? */
1097 if (enable_local_apic < 0) 1108 if (disable_apic)
1098 return -1; 1109 return -1;
1099 1110
1100 switch (boot_cpu_data.x86_vendor) { 1111 switch (boot_cpu_data.x86_vendor) {
@@ -1117,7 +1128,7 @@ static int __init detect_init_APIC(void)
1117 * Over-ride BIOS and try to enable the local APIC only if 1128 * Over-ride BIOS and try to enable the local APIC only if
1118 * "lapic" specified. 1129 * "lapic" specified.
1119 */ 1130 */
1120 if (enable_local_apic <= 0) { 1131 if (!force_enable_local_apic) {
1121 printk(KERN_INFO "Local APIC disabled by BIOS -- " 1132 printk(KERN_INFO "Local APIC disabled by BIOS -- "
1122 "you can enable it with \"lapic\"\n"); 1133 "you can enable it with \"lapic\"\n");
1123 return -1; 1134 return -1;
@@ -1154,9 +1165,6 @@ static int __init detect_init_APIC(void)
1154 if (l & MSR_IA32_APICBASE_ENABLE) 1165 if (l & MSR_IA32_APICBASE_ENABLE)
1155 mp_lapic_addr = l & MSR_IA32_APICBASE_BASE; 1166 mp_lapic_addr = l & MSR_IA32_APICBASE_BASE;
1156 1167
1157 if (nmi_watchdog != NMI_NONE && nmi_watchdog != NMI_DISABLED)
1158 nmi_watchdog = NMI_LOCAL_APIC;
1159
1160 printk(KERN_INFO "Found and enabled local APIC!\n"); 1168 printk(KERN_INFO "Found and enabled local APIC!\n");
1161 1169
1162 apic_pm_activate(); 1170 apic_pm_activate();
@@ -1195,36 +1203,6 @@ void __init init_apic_mappings(void)
1195 if (boot_cpu_physical_apicid == -1U) 1203 if (boot_cpu_physical_apicid == -1U)
1196 boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id()); 1204 boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
1197 1205
1198#ifdef CONFIG_X86_IO_APIC
1199 {
1200 unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0;
1201 int i;
1202
1203 for (i = 0; i < nr_ioapics; i++) {
1204 if (smp_found_config) {
1205 ioapic_phys = mp_ioapics[i].mpc_apicaddr;
1206 if (!ioapic_phys) {
1207 printk(KERN_ERR
1208 "WARNING: bogus zero IO-APIC "
1209 "address found in MPTABLE, "
1210 "disabling IO/APIC support!\n");
1211 smp_found_config = 0;
1212 skip_ioapic_setup = 1;
1213 goto fake_ioapic_page;
1214 }
1215 } else {
1216fake_ioapic_page:
1217 ioapic_phys = (unsigned long)
1218 alloc_bootmem_pages(PAGE_SIZE);
1219 ioapic_phys = __pa(ioapic_phys);
1220 }
1221 set_fixmap_nocache(idx, ioapic_phys);
1222 printk(KERN_DEBUG "mapped IOAPIC to %08lx (%08lx)\n",
1223 __fix_to_virt(idx), ioapic_phys);
1224 idx++;
1225 }
1226 }
1227#endif
1228} 1206}
1229 1207
1230/* 1208/*
@@ -1236,7 +1214,7 @@ int apic_version[MAX_APICS];
1236 1214
1237int __init APIC_init_uniprocessor(void) 1215int __init APIC_init_uniprocessor(void)
1238{ 1216{
1239 if (enable_local_apic < 0) 1217 if (disable_apic)
1240 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC); 1218 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
1241 1219
1242 if (!smp_found_config && !cpu_has_apic) 1220 if (!smp_found_config && !cpu_has_apic)
@@ -1265,10 +1243,14 @@ int __init APIC_init_uniprocessor(void)
1265#ifdef CONFIG_CRASH_DUMP 1243#ifdef CONFIG_CRASH_DUMP
1266 boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id()); 1244 boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
1267#endif 1245#endif
1268 phys_cpu_present_map = physid_mask_of_physid(boot_cpu_physical_apicid); 1246 physid_set_mask_of_physid(boot_cpu_physical_apicid, &phys_cpu_present_map);
1269 1247
1270 setup_local_APIC(); 1248 setup_local_APIC();
1271 1249
1250#ifdef CONFIG_X86_IO_APIC
1251 if (!smp_found_config || skip_ioapic_setup || !nr_ioapics)
1252#endif
1253 localise_nmi_watchdog();
1272 end_local_APIC_setup(); 1254 end_local_APIC_setup();
1273#ifdef CONFIG_X86_IO_APIC 1255#ifdef CONFIG_X86_IO_APIC
1274 if (smp_found_config) 1256 if (smp_found_config)
@@ -1351,13 +1333,17 @@ void __init smp_intr_init(void)
1351 * The reschedule interrupt is a CPU-to-CPU reschedule-helper 1333 * The reschedule interrupt is a CPU-to-CPU reschedule-helper
1352 * IPI, driven by wakeup. 1334 * IPI, driven by wakeup.
1353 */ 1335 */
1354 set_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt); 1336 alloc_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt);
1355 1337
1356 /* IPI for invalidation */ 1338 /* IPI for invalidation */
1357 set_intr_gate(INVALIDATE_TLB_VECTOR, invalidate_interrupt); 1339 alloc_intr_gate(INVALIDATE_TLB_VECTOR, invalidate_interrupt);
1358 1340
1359 /* IPI for generic function call */ 1341 /* IPI for generic function call */
1360 set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); 1342 alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
1343
1344 /* IPI for single call function */
1345 set_intr_gate(CALL_FUNCTION_SINGLE_VECTOR,
1346 call_function_single_interrupt);
1361} 1347}
1362#endif 1348#endif
1363 1349
@@ -1370,15 +1356,15 @@ void __init apic_intr_init(void)
1370 smp_intr_init(); 1356 smp_intr_init();
1371#endif 1357#endif
1372 /* self generated IPI for local APIC timer */ 1358 /* self generated IPI for local APIC timer */
1373 set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt); 1359 alloc_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
1374 1360
1375 /* IPI vectors for APIC spurious and error interrupts */ 1361 /* IPI vectors for APIC spurious and error interrupts */
1376 set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt); 1362 alloc_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
1377 set_intr_gate(ERROR_APIC_VECTOR, error_interrupt); 1363 alloc_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
1378 1364
1379 /* thermal monitor LVT interrupt */ 1365 /* thermal monitor LVT interrupt */
1380#ifdef CONFIG_X86_MCE_P4THERMAL 1366#ifdef CONFIG_X86_MCE_P4THERMAL
1381 set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt); 1367 alloc_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
1382#endif 1368#endif
1383} 1369}
1384 1370
@@ -1513,6 +1499,9 @@ void __cpuinit generic_processor_info(int apicid, int version)
1513 */ 1499 */
1514 cpu = 0; 1500 cpu = 0;
1515 1501
1502 if (apicid > max_physical_apicid)
1503 max_physical_apicid = apicid;
1504
1516 /* 1505 /*
1517 * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y 1506 * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
1518 * but we need to work other dependencies like SMP_SUSPEND etc 1507 * but we need to work other dependencies like SMP_SUSPEND etc
@@ -1520,7 +1509,7 @@ void __cpuinit generic_processor_info(int apicid, int version)
1520 * if (CPU_HOTPLUG_ENABLED || num_processors > 8) 1509 * if (CPU_HOTPLUG_ENABLED || num_processors > 8)
1521 * - Ashok Raj <ashok.raj@intel.com> 1510 * - Ashok Raj <ashok.raj@intel.com>
1522 */ 1511 */
1523 if (num_processors > 8) { 1512 if (max_physical_apicid >= 8) {
1524 switch (boot_cpu_data.x86_vendor) { 1513 switch (boot_cpu_data.x86_vendor) {
1525 case X86_VENDOR_INTEL: 1514 case X86_VENDOR_INTEL:
1526 if (!APIC_XAPIC(version)) { 1515 if (!APIC_XAPIC(version)) {
@@ -1534,9 +1523,9 @@ void __cpuinit generic_processor_info(int apicid, int version)
1534 } 1523 }
1535#ifdef CONFIG_SMP 1524#ifdef CONFIG_SMP
1536 /* are we being called early in kernel startup? */ 1525 /* are we being called early in kernel startup? */
1537 if (x86_cpu_to_apicid_early_ptr) { 1526 if (early_per_cpu_ptr(x86_cpu_to_apicid)) {
1538 u16 *cpu_to_apicid = x86_cpu_to_apicid_early_ptr; 1527 u16 *cpu_to_apicid = early_per_cpu_ptr(x86_cpu_to_apicid);
1539 u16 *bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr; 1528 u16 *bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid);
1540 1529
1541 cpu_to_apicid[cpu] = apicid; 1530 cpu_to_apicid[cpu] = apicid;
1542 bios_cpu_apicid[cpu] = apicid; 1531 bios_cpu_apicid[cpu] = apicid;
@@ -1703,14 +1692,14 @@ static void apic_pm_activate(void) { }
1703 */ 1692 */
1704static int __init parse_lapic(char *arg) 1693static int __init parse_lapic(char *arg)
1705{ 1694{
1706 enable_local_apic = 1; 1695 force_enable_local_apic = 1;
1707 return 0; 1696 return 0;
1708} 1697}
1709early_param("lapic", parse_lapic); 1698early_param("lapic", parse_lapic);
1710 1699
1711static int __init parse_nolapic(char *arg) 1700static int __init parse_nolapic(char *arg)
1712{ 1701{
1713 enable_local_apic = -1; 1702 disable_apic = 1;
1714 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC); 1703 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
1715 return 0; 1704 return 0;
1716} 1705}
@@ -1740,3 +1729,21 @@ static int __init apic_set_verbosity(char *str)
1740} 1729}
1741__setup("apic=", apic_set_verbosity); 1730__setup("apic=", apic_set_verbosity);
1742 1731
1732static int __init lapic_insert_resource(void)
1733{
1734 if (!apic_phys)
1735 return -1;
1736
1737 /* Put local APIC into the resource map. */
1738 lapic_resource.start = apic_phys;
1739 lapic_resource.end = lapic_resource.start + PAGE_SIZE - 1;
1740 insert_resource(&iomem_resource, &lapic_resource);
1741
1742 return 0;
1743}
1744
1745/*
1746 * need call insert after e820_reserve_resources()
1747 * that is using request_resource
1748 */
1749late_initcall(lapic_insert_resource);
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 0633cfd0dc29..1e3d32e27c14 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -43,7 +43,7 @@
43#include <mach_ipi.h> 43#include <mach_ipi.h>
44#include <mach_apic.h> 44#include <mach_apic.h>
45 45
46int disable_apic_timer __cpuinitdata; 46static int disable_apic_timer __cpuinitdata;
47static int apic_calibrate_pmtmr __initdata; 47static int apic_calibrate_pmtmr __initdata;
48int disable_apic; 48int disable_apic;
49 49
@@ -56,6 +56,9 @@ EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
56 */ 56 */
57int apic_verbosity; 57int apic_verbosity;
58 58
59/* Have we found an MP table */
60int smp_found_config;
61
59static struct resource lapic_resource = { 62static struct resource lapic_resource = {
60 .name = "Local APIC", 63 .name = "Local APIC",
61 .flags = IORESOURCE_MEM | IORESOURCE_BUSY, 64 .flags = IORESOURCE_MEM | IORESOURCE_BUSY,
@@ -87,9 +90,6 @@ static unsigned long apic_phys;
87 90
88unsigned long mp_lapic_addr; 91unsigned long mp_lapic_addr;
89 92
90DEFINE_PER_CPU(u16, x86_bios_cpu_apicid) = BAD_APICID;
91EXPORT_PER_CPU_SYMBOL(x86_bios_cpu_apicid);
92
93unsigned int __cpuinitdata maxcpus = NR_CPUS; 93unsigned int __cpuinitdata maxcpus = NR_CPUS;
94/* 94/*
95 * Get the LAPIC version 95 * Get the LAPIC version
@@ -417,37 +417,13 @@ void __init setup_boot_APIC_clock(void)
417 lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY; 417 lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY;
418 else 418 else
419 printk(KERN_WARNING "APIC timer registered as dummy," 419 printk(KERN_WARNING "APIC timer registered as dummy,"
420 " due to nmi_watchdog=1!\n"); 420 " due to nmi_watchdog=%d!\n", nmi_watchdog);
421 421
422 setup_APIC_timer(); 422 setup_APIC_timer();
423} 423}
424 424
425/*
426 * AMD C1E enabled CPUs have a real nasty problem: Some BIOSes set the
427 * C1E flag only in the secondary CPU, so when we detect the wreckage
428 * we already have enabled the boot CPU local apic timer. Check, if
429 * disable_apic_timer is set and the DUMMY flag is cleared. If yes,
430 * set the DUMMY flag again and force the broadcast mode in the
431 * clockevents layer.
432 */
433static void __cpuinit check_boot_apic_timer_broadcast(void)
434{
435 if (!disable_apic_timer ||
436 (lapic_clockevent.features & CLOCK_EVT_FEAT_DUMMY))
437 return;
438
439 printk(KERN_INFO "AMD C1E detected late. Force timer broadcast.\n");
440 lapic_clockevent.features |= CLOCK_EVT_FEAT_DUMMY;
441
442 local_irq_enable();
443 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
444 &boot_cpu_physical_apicid);
445 local_irq_disable();
446}
447
448void __cpuinit setup_secondary_APIC_clock(void) 425void __cpuinit setup_secondary_APIC_clock(void)
449{ 426{
450 check_boot_apic_timer_broadcast();
451 setup_APIC_timer(); 427 setup_APIC_timer();
452} 428}
453 429
@@ -850,7 +826,6 @@ static void __cpuinit lapic_setup_esr(void)
850void __cpuinit end_local_APIC_setup(void) 826void __cpuinit end_local_APIC_setup(void)
851{ 827{
852 lapic_setup_esr(); 828 lapic_setup_esr();
853 nmi_watchdog_default();
854 setup_apic_nmi_watchdog(NULL); 829 setup_apic_nmi_watchdog(NULL);
855 apic_pm_activate(); 830 apic_pm_activate();
856} 831}
@@ -875,7 +850,7 @@ static int __init detect_init_APIC(void)
875 850
876void __init early_init_lapic_mapping(void) 851void __init early_init_lapic_mapping(void)
877{ 852{
878 unsigned long apic_phys; 853 unsigned long phys_addr;
879 854
880 /* 855 /*
881 * If no local APIC can be found then go out 856 * If no local APIC can be found then go out
@@ -884,11 +859,11 @@ void __init early_init_lapic_mapping(void)
884 if (!smp_found_config) 859 if (!smp_found_config)
885 return; 860 return;
886 861
887 apic_phys = mp_lapic_addr; 862 phys_addr = mp_lapic_addr;
888 863
889 set_fixmap_nocache(FIX_APIC_BASE, apic_phys); 864 set_fixmap_nocache(FIX_APIC_BASE, phys_addr);
890 apic_printk(APIC_VERBOSE, "mapped APIC to %16lx (%16lx)\n", 865 apic_printk(APIC_VERBOSE, "mapped APIC to %16lx (%16lx)\n",
891 APIC_BASE, apic_phys); 866 APIC_BASE, phys_addr);
892 867
893 /* 868 /*
894 * Fetch the APIC ID of the BSP in case we have a 869 * Fetch the APIC ID of the BSP in case we have a
@@ -942,7 +917,9 @@ int __init APIC_init_uniprocessor(void)
942 917
943 verify_local_APIC(); 918 verify_local_APIC();
944 919
945 phys_cpu_present_map = physid_mask_of_physid(boot_cpu_physical_apicid); 920 connect_bsp_APIC();
921
922 physid_set_mask_of_physid(boot_cpu_physical_apicid, &phys_cpu_present_map);
946 apic_write(APIC_ID, SET_APIC_ID(boot_cpu_physical_apicid)); 923 apic_write(APIC_ID, SET_APIC_ID(boot_cpu_physical_apicid));
947 924
948 setup_local_APIC(); 925 setup_local_APIC();
@@ -954,6 +931,8 @@ int __init APIC_init_uniprocessor(void)
954 if (!skip_ioapic_setup && nr_ioapics) 931 if (!skip_ioapic_setup && nr_ioapics)
955 enable_IO_APIC(); 932 enable_IO_APIC();
956 933
934 if (!smp_found_config || skip_ioapic_setup || !nr_ioapics)
935 localise_nmi_watchdog();
957 end_local_APIC_setup(); 936 end_local_APIC_setup();
958 937
959 if (smp_found_config && !skip_ioapic_setup && nr_ioapics) 938 if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
@@ -1021,6 +1000,14 @@ asmlinkage void smp_error_interrupt(void)
1021 irq_exit(); 1000 irq_exit();
1022} 1001}
1023 1002
1003/**
1004 * * connect_bsp_APIC - attach the APIC to the interrupt system
1005 * */
1006void __init connect_bsp_APIC(void)
1007{
1008 enable_apic_mode();
1009}
1010
1024void disconnect_bsp_APIC(int virt_wire_setup) 1011void disconnect_bsp_APIC(int virt_wire_setup)
1025{ 1012{
1026 /* Go back to Virtual Wire compatibility mode */ 1013 /* Go back to Virtual Wire compatibility mode */
@@ -1090,10 +1077,13 @@ void __cpuinit generic_processor_info(int apicid, int version)
1090 */ 1077 */
1091 cpu = 0; 1078 cpu = 0;
1092 } 1079 }
1080 if (apicid > max_physical_apicid)
1081 max_physical_apicid = apicid;
1082
1093 /* are we being called early in kernel startup? */ 1083 /* are we being called early in kernel startup? */
1094 if (x86_cpu_to_apicid_early_ptr) { 1084 if (early_per_cpu_ptr(x86_cpu_to_apicid)) {
1095 u16 *cpu_to_apicid = x86_cpu_to_apicid_early_ptr; 1085 u16 *cpu_to_apicid = early_per_cpu_ptr(x86_cpu_to_apicid);
1096 u16 *bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr; 1086 u16 *bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid);
1097 1087
1098 cpu_to_apicid[cpu] = apicid; 1088 cpu_to_apicid[cpu] = apicid;
1099 bios_cpu_apicid[cpu] = apicid; 1089 bios_cpu_apicid[cpu] = apicid;
@@ -1269,7 +1259,7 @@ __cpuinit int apic_is_clustered_box(void)
1269 if ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && !is_vsmp_box()) 1259 if ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && !is_vsmp_box())
1270 return 0; 1260 return 0;
1271 1261
1272 bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr; 1262 bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid);
1273 bitmap_zero(clustermap, NUM_APIC_CLUSTERS); 1263 bitmap_zero(clustermap, NUM_APIC_CLUSTERS);
1274 1264
1275 for (i = 0; i < NR_CPUS; i++) { 1265 for (i = 0; i < NR_CPUS; i++) {
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index bf9290e29013..bf9b441331e9 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -204,6 +204,7 @@
204#include <linux/module.h> 204#include <linux/module.h>
205 205
206#include <linux/poll.h> 206#include <linux/poll.h>
207#include <linux/smp_lock.h>
207#include <linux/types.h> 208#include <linux/types.h>
208#include <linux/stddef.h> 209#include <linux/stddef.h>
209#include <linux/timer.h> 210#include <linux/timer.h>
@@ -228,6 +229,7 @@
228#include <linux/suspend.h> 229#include <linux/suspend.h>
229#include <linux/kthread.h> 230#include <linux/kthread.h>
230#include <linux/jiffies.h> 231#include <linux/jiffies.h>
232#include <linux/smp_lock.h>
231 233
232#include <asm/system.h> 234#include <asm/system.h>
233#include <asm/uaccess.h> 235#include <asm/uaccess.h>
@@ -1149,7 +1151,7 @@ static void queue_event(apm_event_t event, struct apm_user *sender)
1149 as->event_tail = 0; 1151 as->event_tail = 0;
1150 } 1152 }
1151 as->events[as->event_head] = event; 1153 as->events[as->event_head] = event;
1152 if ((!as->suser) || (!as->writer)) 1154 if (!as->suser || !as->writer)
1153 continue; 1155 continue;
1154 switch (event) { 1156 switch (event) {
1155 case APM_SYS_SUSPEND: 1157 case APM_SYS_SUSPEND:
@@ -1211,9 +1213,9 @@ static int suspend(int vetoable)
1211 if (err != APM_SUCCESS) 1213 if (err != APM_SUCCESS)
1212 apm_error("suspend", err); 1214 apm_error("suspend", err);
1213 err = (err == APM_SUCCESS) ? 0 : -EIO; 1215 err = (err == APM_SUCCESS) ? 0 : -EIO;
1214 device_power_up(); 1216 device_power_up(PMSG_RESUME);
1215 local_irq_enable(); 1217 local_irq_enable();
1216 device_resume(); 1218 device_resume(PMSG_RESUME);
1217 queue_event(APM_NORMAL_RESUME, NULL); 1219 queue_event(APM_NORMAL_RESUME, NULL);
1218 spin_lock(&user_list_lock); 1220 spin_lock(&user_list_lock);
1219 for (as = user_list; as != NULL; as = as->next) { 1221 for (as = user_list; as != NULL; as = as->next) {
@@ -1238,7 +1240,7 @@ static void standby(void)
1238 apm_error("standby", err); 1240 apm_error("standby", err);
1239 1241
1240 local_irq_disable(); 1242 local_irq_disable();
1241 device_power_up(); 1243 device_power_up(PMSG_RESUME);
1242 local_irq_enable(); 1244 local_irq_enable();
1243} 1245}
1244 1246
@@ -1324,7 +1326,7 @@ static void check_events(void)
1324 ignore_bounce = 1; 1326 ignore_bounce = 1;
1325 if ((event != APM_NORMAL_RESUME) 1327 if ((event != APM_NORMAL_RESUME)
1326 || (ignore_normal_resume == 0)) { 1328 || (ignore_normal_resume == 0)) {
1327 device_resume(); 1329 device_resume(PMSG_RESUME);
1328 queue_event(event, NULL); 1330 queue_event(event, NULL);
1329 } 1331 }
1330 ignore_normal_resume = 0; 1332 ignore_normal_resume = 0;
@@ -1396,7 +1398,7 @@ static void apm_mainloop(void)
1396 1398
1397static int check_apm_user(struct apm_user *as, const char *func) 1399static int check_apm_user(struct apm_user *as, const char *func)
1398{ 1400{
1399 if ((as == NULL) || (as->magic != APM_BIOS_MAGIC)) { 1401 if (as == NULL || as->magic != APM_BIOS_MAGIC) {
1400 printk(KERN_ERR "apm: %s passed bad filp\n", func); 1402 printk(KERN_ERR "apm: %s passed bad filp\n", func);
1401 return 1; 1403 return 1;
1402 } 1404 }
@@ -1459,18 +1461,19 @@ static unsigned int do_poll(struct file *fp, poll_table *wait)
1459 return 0; 1461 return 0;
1460} 1462}
1461 1463
1462static int do_ioctl(struct inode *inode, struct file *filp, 1464static long do_ioctl(struct file *filp, u_int cmd, u_long arg)
1463 u_int cmd, u_long arg)
1464{ 1465{
1465 struct apm_user *as; 1466 struct apm_user *as;
1467 int ret;
1466 1468
1467 as = filp->private_data; 1469 as = filp->private_data;
1468 if (check_apm_user(as, "ioctl")) 1470 if (check_apm_user(as, "ioctl"))
1469 return -EIO; 1471 return -EIO;
1470 if ((!as->suser) || (!as->writer)) 1472 if (!as->suser || !as->writer)
1471 return -EPERM; 1473 return -EPERM;
1472 switch (cmd) { 1474 switch (cmd) {
1473 case APM_IOC_STANDBY: 1475 case APM_IOC_STANDBY:
1476 lock_kernel();
1474 if (as->standbys_read > 0) { 1477 if (as->standbys_read > 0) {
1475 as->standbys_read--; 1478 as->standbys_read--;
1476 as->standbys_pending--; 1479 as->standbys_pending--;
@@ -1479,8 +1482,10 @@ static int do_ioctl(struct inode *inode, struct file *filp,
1479 queue_event(APM_USER_STANDBY, as); 1482 queue_event(APM_USER_STANDBY, as);
1480 if (standbys_pending <= 0) 1483 if (standbys_pending <= 0)
1481 standby(); 1484 standby();
1485 unlock_kernel();
1482 break; 1486 break;
1483 case APM_IOC_SUSPEND: 1487 case APM_IOC_SUSPEND:
1488 lock_kernel();
1484 if (as->suspends_read > 0) { 1489 if (as->suspends_read > 0) {
1485 as->suspends_read--; 1490 as->suspends_read--;
1486 as->suspends_pending--; 1491 as->suspends_pending--;
@@ -1488,16 +1493,17 @@ static int do_ioctl(struct inode *inode, struct file *filp,
1488 } else 1493 } else
1489 queue_event(APM_USER_SUSPEND, as); 1494 queue_event(APM_USER_SUSPEND, as);
1490 if (suspends_pending <= 0) { 1495 if (suspends_pending <= 0) {
1491 return suspend(1); 1496 ret = suspend(1);
1492 } else { 1497 } else {
1493 as->suspend_wait = 1; 1498 as->suspend_wait = 1;
1494 wait_event_interruptible(apm_suspend_waitqueue, 1499 wait_event_interruptible(apm_suspend_waitqueue,
1495 as->suspend_wait == 0); 1500 as->suspend_wait == 0);
1496 return as->suspend_result; 1501 ret = as->suspend_result;
1497 } 1502 }
1498 break; 1503 unlock_kernel();
1504 return ret;
1499 default: 1505 default:
1500 return -EINVAL; 1506 return -ENOTTY;
1501 } 1507 }
1502 return 0; 1508 return 0;
1503} 1509}
@@ -1544,10 +1550,12 @@ static int do_open(struct inode *inode, struct file *filp)
1544{ 1550{
1545 struct apm_user *as; 1551 struct apm_user *as;
1546 1552
1553 lock_kernel();
1547 as = kmalloc(sizeof(*as), GFP_KERNEL); 1554 as = kmalloc(sizeof(*as), GFP_KERNEL);
1548 if (as == NULL) { 1555 if (as == NULL) {
1549 printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n", 1556 printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n",
1550 sizeof(*as)); 1557 sizeof(*as));
1558 unlock_kernel();
1551 return -ENOMEM; 1559 return -ENOMEM;
1552 } 1560 }
1553 as->magic = APM_BIOS_MAGIC; 1561 as->magic = APM_BIOS_MAGIC;
@@ -1569,6 +1577,7 @@ static int do_open(struct inode *inode, struct file *filp)
1569 user_list = as; 1577 user_list = as;
1570 spin_unlock(&user_list_lock); 1578 spin_unlock(&user_list_lock);
1571 filp->private_data = as; 1579 filp->private_data = as;
1580 unlock_kernel();
1572 return 0; 1581 return 0;
1573} 1582}
1574 1583
@@ -1860,7 +1869,7 @@ static const struct file_operations apm_bios_fops = {
1860 .owner = THIS_MODULE, 1869 .owner = THIS_MODULE,
1861 .read = do_read, 1870 .read = do_read,
1862 .poll = do_poll, 1871 .poll = do_poll,
1863 .ioctl = do_ioctl, 1872 .unlocked_ioctl = do_ioctl,
1864 .open = do_open, 1873 .open = do_open,
1865 .release = do_release, 1874 .release = do_release,
1866}; 1875};
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 92588083950f..6649d09ad88f 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -111,7 +111,7 @@ void foo(void)
111 OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable); 111 OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
112 OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable); 112 OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
113 OFFSET(PV_CPU_iret, pv_cpu_ops, iret); 113 OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
114 OFFSET(PV_CPU_irq_enable_syscall_ret, pv_cpu_ops, irq_enable_syscall_ret); 114 OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
115 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); 115 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
116#endif 116#endif
117 117
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index f126c05d6170..bacf5deeec2d 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -34,7 +34,7 @@ int main(void)
34 ENTRY(pid); 34 ENTRY(pid);
35 BLANK(); 35 BLANK();
36#undef ENTRY 36#undef ENTRY
37#define ENTRY(entry) DEFINE(threadinfo_ ## entry, offsetof(struct thread_info, entry)) 37#define ENTRY(entry) DEFINE(TI_ ## entry, offsetof(struct thread_info, entry))
38 ENTRY(flags); 38 ENTRY(flags);
39 ENTRY(addr_limit); 39 ENTRY(addr_limit);
40 ENTRY(preempt_count); 40 ENTRY(preempt_count);
@@ -61,8 +61,11 @@ int main(void)
61 OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops); 61 OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
62 OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable); 62 OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
63 OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable); 63 OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
64 OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
64 OFFSET(PV_CPU_iret, pv_cpu_ops, iret); 65 OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
65 OFFSET(PV_CPU_irq_enable_syscall_ret, pv_cpu_ops, irq_enable_syscall_ret); 66 OFFSET(PV_CPU_usergs_sysret32, pv_cpu_ops, usergs_sysret32);
67 OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
68 OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
66 OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs); 69 OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
67 OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2); 70 OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
68#endif 71#endif
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index a0c6f8190887..ee76eaad3001 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -6,11 +6,15 @@ obj-y := intel_cacheinfo.o addon_cpuid_features.o
6obj-y += proc.o feature_names.o 6obj-y += proc.o feature_names.o
7 7
8obj-$(CONFIG_X86_32) += common.o bugs.o 8obj-$(CONFIG_X86_32) += common.o bugs.o
9obj-$(CONFIG_X86_64) += common_64.o bugs_64.o
9obj-$(CONFIG_X86_32) += amd.o 10obj-$(CONFIG_X86_32) += amd.o
11obj-$(CONFIG_X86_64) += amd_64.o
10obj-$(CONFIG_X86_32) += cyrix.o 12obj-$(CONFIG_X86_32) += cyrix.o
11obj-$(CONFIG_X86_32) += centaur.o 13obj-$(CONFIG_X86_32) += centaur.o
14obj-$(CONFIG_X86_64) += centaur_64.o
12obj-$(CONFIG_X86_32) += transmeta.o 15obj-$(CONFIG_X86_32) += transmeta.o
13obj-$(CONFIG_X86_32) += intel.o 16obj-$(CONFIG_X86_32) += intel.o
17obj-$(CONFIG_X86_64) += intel_64.o
14obj-$(CONFIG_X86_32) += umc.o 18obj-$(CONFIG_X86_32) += umc.o
15 19
16obj-$(CONFIG_X86_MCE) += mcheck/ 20obj-$(CONFIG_X86_MCE) += mcheck/
diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c
index c2e1ce33c7cb..84a8220a6072 100644
--- a/arch/x86/kernel/cpu/addon_cpuid_features.c
+++ b/arch/x86/kernel/cpu/addon_cpuid_features.c
@@ -1,9 +1,7 @@
1
2/* 1/*
3 * Routines to indentify additional cpu features that are scattered in 2 * Routines to indentify additional cpu features that are scattered in
4 * cpuid space. 3 * cpuid space.
5 */ 4 */
6
7#include <linux/cpu.h> 5#include <linux/cpu.h>
8 6
9#include <asm/pat.h> 7#include <asm/pat.h>
@@ -53,19 +51,20 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
53#ifdef CONFIG_X86_PAT 51#ifdef CONFIG_X86_PAT
54void __cpuinit validate_pat_support(struct cpuinfo_x86 *c) 52void __cpuinit validate_pat_support(struct cpuinfo_x86 *c)
55{ 53{
54 if (!cpu_has_pat)
55 pat_disable("PAT not supported by CPU.");
56
56 switch (c->x86_vendor) { 57 switch (c->x86_vendor) {
57 case X86_VENDOR_AMD:
58 if (c->x86 >= 0xf && c->x86 <= 0x11)
59 return;
60 break;
61 case X86_VENDOR_INTEL: 58 case X86_VENDOR_INTEL:
62 if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15)) 59 if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15))
63 return; 60 return;
64 break; 61 break;
62 case X86_VENDOR_AMD:
63 case X86_VENDOR_CENTAUR:
64 case X86_VENDOR_TRANSMETA:
65 return;
65 } 66 }
66 67
67 pat_disable(cpu_has_pat ? 68 pat_disable("PAT disabled. Not yet verified on this CPU type.");
68 "PAT disabled. Not yet verified on this CPU type." :
69 "PAT not supported by CPU.");
70} 69}
71#endif 70#endif
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 245866828294..81a07ca65d44 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -24,43 +24,6 @@
24extern void vide(void); 24extern void vide(void);
25__asm__(".align 4\nvide: ret"); 25__asm__(".align 4\nvide: ret");
26 26
27#ifdef CONFIG_X86_LOCAL_APIC
28#define ENABLE_C1E_MASK 0x18000000
29#define CPUID_PROCESSOR_SIGNATURE 1
30#define CPUID_XFAM 0x0ff00000
31#define CPUID_XFAM_K8 0x00000000
32#define CPUID_XFAM_10H 0x00100000
33#define CPUID_XFAM_11H 0x00200000
34#define CPUID_XMOD 0x000f0000
35#define CPUID_XMOD_REV_F 0x00040000
36
37/* AMD systems with C1E don't have a working lAPIC timer. Check for that. */
38static __cpuinit int amd_apic_timer_broken(void)
39{
40 u32 lo, hi;
41 u32 eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
42 switch (eax & CPUID_XFAM) {
43 case CPUID_XFAM_K8:
44 if ((eax & CPUID_XMOD) < CPUID_XMOD_REV_F)
45 break;
46 case CPUID_XFAM_10H:
47 case CPUID_XFAM_11H:
48 rdmsr(MSR_K8_ENABLE_C1E, lo, hi);
49 if (lo & ENABLE_C1E_MASK) {
50 if (smp_processor_id() != boot_cpu_physical_apicid)
51 printk(KERN_INFO "AMD C1E detected late. "
52 " Force timer broadcast.\n");
53 return 1;
54 }
55 break;
56 default:
57 /* err on the side of caution */
58 return 1;
59 }
60 return 0;
61}
62#endif
63
64int force_mwait __cpuinitdata; 27int force_mwait __cpuinitdata;
65 28
66static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) 29static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
@@ -297,11 +260,6 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
297 num_cache_leaves = 3; 260 num_cache_leaves = 3;
298 } 261 }
299 262
300#ifdef CONFIG_X86_LOCAL_APIC
301 if (amd_apic_timer_broken())
302 local_apic_timer_disabled = 1;
303#endif
304
305 /* K6s reports MCEs but don't actually have all the MSRs */ 263 /* K6s reports MCEs but don't actually have all the MSRs */
306 if (c->x86 < 6) 264 if (c->x86 < 6)
307 clear_cpu_cap(c, X86_FEATURE_MCE); 265 clear_cpu_cap(c, X86_FEATURE_MCE);
diff --git a/arch/x86/kernel/cpu/amd_64.c b/arch/x86/kernel/cpu/amd_64.c
new file mode 100644
index 000000000000..7c36fb8a28d4
--- /dev/null
+++ b/arch/x86/kernel/cpu/amd_64.c
@@ -0,0 +1,222 @@
1#include <linux/init.h>
2#include <linux/mm.h>
3
4#include <asm/numa_64.h>
5#include <asm/mmconfig.h>
6#include <asm/cacheflush.h>
7
8#include <mach_apic.h>
9
10#include "cpu.h"
11
12int force_mwait __cpuinitdata;
13
14#ifdef CONFIG_NUMA
15static int __cpuinit nearby_node(int apicid)
16{
17 int i, node;
18
19 for (i = apicid - 1; i >= 0; i--) {
20 node = apicid_to_node[i];
21 if (node != NUMA_NO_NODE && node_online(node))
22 return node;
23 }
24 for (i = apicid + 1; i < MAX_LOCAL_APIC; i++) {
25 node = apicid_to_node[i];
26 if (node != NUMA_NO_NODE && node_online(node))
27 return node;
28 }
29 return first_node(node_online_map); /* Shouldn't happen */
30}
31#endif
32
33/*
34 * On a AMD dual core setup the lower bits of the APIC id distingush the cores.
35 * Assumes number of cores is a power of two.
36 */
37static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c)
38{
39#ifdef CONFIG_SMP
40 unsigned bits;
41#ifdef CONFIG_NUMA
42 int cpu = smp_processor_id();
43 int node = 0;
44 unsigned apicid = hard_smp_processor_id();
45#endif
46 bits = c->x86_coreid_bits;
47
48 /* Low order bits define the core id (index of core in socket) */
49 c->cpu_core_id = c->initial_apicid & ((1 << bits)-1);
50 /* Convert the initial APIC ID into the socket ID */
51 c->phys_proc_id = c->initial_apicid >> bits;
52
53#ifdef CONFIG_NUMA
54 node = c->phys_proc_id;
55 if (apicid_to_node[apicid] != NUMA_NO_NODE)
56 node = apicid_to_node[apicid];
57 if (!node_online(node)) {
58 /* Two possibilities here:
59 - The CPU is missing memory and no node was created.
60 In that case try picking one from a nearby CPU
61 - The APIC IDs differ from the HyperTransport node IDs
62 which the K8 northbridge parsing fills in.
63 Assume they are all increased by a constant offset,
64 but in the same order as the HT nodeids.
65 If that doesn't result in a usable node fall back to the
66 path for the previous case. */
67
68 int ht_nodeid = c->initial_apicid;
69
70 if (ht_nodeid >= 0 &&
71 apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
72 node = apicid_to_node[ht_nodeid];
73 /* Pick a nearby node */
74 if (!node_online(node))
75 node = nearby_node(apicid);
76 }
77 numa_set_node(cpu, node);
78
79 printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
80#endif
81#endif
82}
83
84static void __cpuinit early_init_amd_mc(struct cpuinfo_x86 *c)
85{
86#ifdef CONFIG_SMP
87 unsigned bits, ecx;
88
89 /* Multi core CPU? */
90 if (c->extended_cpuid_level < 0x80000008)
91 return;
92
93 ecx = cpuid_ecx(0x80000008);
94
95 c->x86_max_cores = (ecx & 0xff) + 1;
96
97 /* CPU telling us the core id bits shift? */
98 bits = (ecx >> 12) & 0xF;
99
100 /* Otherwise recompute */
101 if (bits == 0) {
102 while ((1 << bits) < c->x86_max_cores)
103 bits++;
104 }
105
106 c->x86_coreid_bits = bits;
107
108#endif
109}
110
111static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
112{
113 early_init_amd_mc(c);
114
115 /* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */
116 if (c->x86_power & (1<<8))
117 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
118}
119
120static void __cpuinit init_amd(struct cpuinfo_x86 *c)
121{
122 unsigned level;
123
124#ifdef CONFIG_SMP
125 unsigned long value;
126
127 /*
128 * Disable TLB flush filter by setting HWCR.FFDIS on K8
129 * bit 6 of msr C001_0015
130 *
131 * Errata 63 for SH-B3 steppings
132 * Errata 122 for all steppings (F+ have it disabled by default)
133 */
134 if (c->x86 == 0xf) {
135 rdmsrl(MSR_K8_HWCR, value);
136 value |= 1 << 6;
137 wrmsrl(MSR_K8_HWCR, value);
138 }
139#endif
140
141 /* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
142 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
143 clear_cpu_cap(c, 0*32+31);
144
145 /* On C+ stepping K8 rep microcode works well for copy/memset */
146 if (c->x86 == 0xf) {
147 level = cpuid_eax(1);
148 if((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58)
149 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
150 }
151 if (c->x86 == 0x10 || c->x86 == 0x11)
152 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
153
154 /* Enable workaround for FXSAVE leak */
155 if (c->x86 >= 6)
156 set_cpu_cap(c, X86_FEATURE_FXSAVE_LEAK);
157
158 level = get_model_name(c);
159 if (!level) {
160 switch (c->x86) {
161 case 0xf:
162 /* Should distinguish Models here, but this is only
163 a fallback anyways. */
164 strcpy(c->x86_model_id, "Hammer");
165 break;
166 }
167 }
168 display_cacheinfo(c);
169
170 /* Multi core CPU? */
171 if (c->extended_cpuid_level >= 0x80000008)
172 amd_detect_cmp(c);
173
174 if (c->extended_cpuid_level >= 0x80000006 &&
175 (cpuid_edx(0x80000006) & 0xf000))
176 num_cache_leaves = 4;
177 else
178 num_cache_leaves = 3;
179
180 if (c->x86 >= 0xf && c->x86 <= 0x11)
181 set_cpu_cap(c, X86_FEATURE_K8);
182
183 /* MFENCE stops RDTSC speculation */
184 set_cpu_cap(c, X86_FEATURE_MFENCE_RDTSC);
185
186 if (c->x86 == 0x10) {
187 /* do this for boot cpu */
188 if (c == &boot_cpu_data)
189 check_enable_amd_mmconf_dmi();
190
191 fam10h_check_enable_mmcfg();
192 }
193
194 if (c == &boot_cpu_data && c->x86 >= 0xf && c->x86 <= 0x11) {
195 unsigned long long tseg;
196
197 /*
198 * Split up direct mapping around the TSEG SMM area.
199 * Don't do it for gbpages because there seems very little
200 * benefit in doing so.
201 */
202 if (!rdmsrl_safe(MSR_K8_TSEG_ADDR, &tseg)) {
203 printk(KERN_DEBUG "tseg: %010llx\n", tseg);
204 if ((tseg>>PMD_SHIFT) <
205 (max_low_pfn_mapped>>(PMD_SHIFT-PAGE_SHIFT)) ||
206 ((tseg>>PMD_SHIFT) <
207 (max_pfn_mapped>>(PMD_SHIFT-PAGE_SHIFT)) &&
208 (tseg>>PMD_SHIFT) >= (1ULL<<(32 - PMD_SHIFT))))
209 set_memory_4k((unsigned long)__va(tseg), 1);
210 }
211 }
212}
213
214static struct cpu_dev amd_cpu_dev __cpuinitdata = {
215 .c_vendor = "AMD",
216 .c_ident = { "AuthenticAMD" },
217 .c_early_init = early_init_amd,
218 .c_init = init_amd,
219};
220
221cpu_vendor_dev_register(X86_VENDOR_AMD, &amd_cpu_dev);
222
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 170d2f5523b2..1b1c56bb338f 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -59,8 +59,12 @@ static void __init check_fpu(void)
59 return; 59 return;
60 } 60 }
61 61
62/* trap_init() enabled FXSR and company _before_ testing for FP problems here. */ 62 /*
63 /* Test for the divl bug.. */ 63 * trap_init() enabled FXSR and company _before_ testing for FP
64 * problems here.
65 *
66 * Test for the divl bug..
67 */
64 __asm__("fninit\n\t" 68 __asm__("fninit\n\t"
65 "fldl %1\n\t" 69 "fldl %1\n\t"
66 "fdivl %2\n\t" 70 "fdivl %2\n\t"
@@ -108,10 +112,15 @@ static void __init check_popad(void)
108 "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx " 112 "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx "
109 : "=&a" (res) 113 : "=&a" (res)
110 : "d" (inp) 114 : "d" (inp)
111 : "ecx", "edi" ); 115 : "ecx", "edi");
112 /* If this fails, it means that any user program may lock the CPU hard. Too bad. */ 116 /*
113 if (res != 12345678) printk( "Buggy.\n" ); 117 * If this fails, it means that any user program may lock the
114 else printk( "OK.\n" ); 118 * CPU hard. Too bad.
119 */
120 if (res != 12345678)
121 printk("Buggy.\n");
122 else
123 printk("OK.\n");
115#endif 124#endif
116} 125}
117 126
@@ -137,7 +146,8 @@ static void __init check_config(void)
137 * i486+ only features! (WP works in supervisor mode and the 146 * i486+ only features! (WP works in supervisor mode and the
138 * new "invlpg" and "bswap" instructions) 147 * new "invlpg" and "bswap" instructions)
139 */ 148 */
140#if defined(CONFIG_X86_WP_WORKS_OK) || defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_BSWAP) 149#if defined(CONFIG_X86_WP_WORKS_OK) || defined(CONFIG_X86_INVLPG) || \
150 defined(CONFIG_X86_BSWAP)
141 if (boot_cpu_data.x86 == 3) 151 if (boot_cpu_data.x86 == 3)
142 panic("Kernel requires i486+ for 'invlpg' and other features"); 152 panic("Kernel requires i486+ for 'invlpg' and other features");
143#endif 153#endif
@@ -170,6 +180,7 @@ void __init check_bugs(void)
170 check_fpu(); 180 check_fpu();
171 check_hlt(); 181 check_hlt();
172 check_popad(); 182 check_popad();
173 init_utsname()->machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86); 183 init_utsname()->machine[1] =
184 '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
174 alternative_instructions(); 185 alternative_instructions();
175} 186}
diff --git a/arch/x86/kernel/bugs_64.c b/arch/x86/kernel/cpu/bugs_64.c
index 9a3ed0649d4e..9a3ed0649d4e 100644
--- a/arch/x86/kernel/bugs_64.c
+++ b/arch/x86/kernel/cpu/bugs_64.c
diff --git a/arch/x86/kernel/cpu/centaur_64.c b/arch/x86/kernel/cpu/centaur_64.c
new file mode 100644
index 000000000000..1d181c40e2e1
--- /dev/null
+++ b/arch/x86/kernel/cpu/centaur_64.c
@@ -0,0 +1,35 @@
1#include <linux/init.h>
2#include <linux/smp.h>
3
4#include <asm/cpufeature.h>
5#include <asm/processor.h>
6
7#include "cpu.h"
8
9static void __cpuinit early_init_centaur(struct cpuinfo_x86 *c)
10{
11 if (c->x86 == 0x6 && c->x86_model >= 0xf)
12 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
13
14 set_cpu_cap(c, X86_FEATURE_SYSENTER32);
15}
16
17static void __cpuinit init_centaur(struct cpuinfo_x86 *c)
18{
19 if (c->x86 == 0x6 && c->x86_model >= 0xf) {
20 c->x86_cache_alignment = c->x86_clflush_size * 2;
21 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
22 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
23 }
24 set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
25}
26
27static struct cpu_dev centaur_cpu_dev __cpuinitdata = {
28 .c_vendor = "Centaur",
29 .c_ident = { "CentaurHauls" },
30 .c_early_init = early_init_centaur,
31 .c_init = init_centaur,
32};
33
34cpu_vendor_dev_register(X86_VENDOR_CENTAUR, &centaur_cpu_dev);
35
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index d0463a946247..80ab20d4fa39 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -427,7 +427,7 @@ __setup("serialnumber", x86_serial_nr_setup);
427/* 427/*
428 * This does the hard work of actually picking apart the CPU stuff... 428 * This does the hard work of actually picking apart the CPU stuff...
429 */ 429 */
430void __cpuinit identify_cpu(struct cpuinfo_x86 *c) 430static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
431{ 431{
432 int i; 432 int i;
433 433
diff --git a/arch/x86/kernel/cpu/common_64.c b/arch/x86/kernel/cpu/common_64.c
new file mode 100644
index 000000000000..7b8cc72feb40
--- /dev/null
+++ b/arch/x86/kernel/cpu/common_64.c
@@ -0,0 +1,681 @@
1#include <linux/init.h>
2#include <linux/kernel.h>
3#include <linux/sched.h>
4#include <linux/string.h>
5#include <linux/bootmem.h>
6#include <linux/bitops.h>
7#include <linux/module.h>
8#include <linux/kgdb.h>
9#include <linux/topology.h>
10#include <linux/string.h>
11#include <linux/delay.h>
12#include <linux/smp.h>
13#include <linux/module.h>
14#include <linux/percpu.h>
15#include <asm/processor.h>
16#include <asm/i387.h>
17#include <asm/msr.h>
18#include <asm/io.h>
19#include <asm/mmu_context.h>
20#include <asm/mtrr.h>
21#include <asm/mce.h>
22#include <asm/pat.h>
23#include <asm/numa.h>
24#ifdef CONFIG_X86_LOCAL_APIC
25#include <asm/mpspec.h>
26#include <asm/apic.h>
27#include <mach_apic.h>
28#endif
29#include <asm/pda.h>
30#include <asm/pgtable.h>
31#include <asm/processor.h>
32#include <asm/desc.h>
33#include <asm/atomic.h>
34#include <asm/proto.h>
35#include <asm/sections.h>
36#include <asm/setup.h>
37#include <asm/genapic.h>
38
39#include "cpu.h"
40
41/* We need valid kernel segments for data and code in long mode too
42 * IRET will check the segment types kkeil 2000/10/28
43 * Also sysret mandates a special GDT layout
44 */
45/* The TLS descriptors are currently at a different place compared to i386.
46 Hopefully nobody expects them at a fixed place (Wine?) */
47DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = {
48 [GDT_ENTRY_KERNEL32_CS] = { { { 0x0000ffff, 0x00cf9b00 } } },
49 [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00af9b00 } } },
50 [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9300 } } },
51 [GDT_ENTRY_DEFAULT_USER32_CS] = { { { 0x0000ffff, 0x00cffb00 } } },
52 [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff300 } } },
53 [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00affb00 } } },
54} };
55EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
56
57__u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata;
58
59/* Current gdt points %fs at the "master" per-cpu area: after this,
60 * it's on the real one. */
61void switch_to_new_gdt(void)
62{
63 struct desc_ptr gdt_descr;
64
65 gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id());
66 gdt_descr.size = GDT_SIZE - 1;
67 load_gdt(&gdt_descr);
68}
69
70struct cpu_dev *cpu_devs[X86_VENDOR_NUM] = {};
71
72static void __cpuinit default_init(struct cpuinfo_x86 *c)
73{
74 display_cacheinfo(c);
75}
76
77static struct cpu_dev __cpuinitdata default_cpu = {
78 .c_init = default_init,
79 .c_vendor = "Unknown",
80};
81static struct cpu_dev *this_cpu __cpuinitdata = &default_cpu;
82
83int __cpuinit get_model_name(struct cpuinfo_x86 *c)
84{
85 unsigned int *v;
86
87 if (c->extended_cpuid_level < 0x80000004)
88 return 0;
89
90 v = (unsigned int *) c->x86_model_id;
91 cpuid(0x80000002, &v[0], &v[1], &v[2], &v[3]);
92 cpuid(0x80000003, &v[4], &v[5], &v[6], &v[7]);
93 cpuid(0x80000004, &v[8], &v[9], &v[10], &v[11]);
94 c->x86_model_id[48] = 0;
95 return 1;
96}
97
98
99void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
100{
101 unsigned int n, dummy, ebx, ecx, edx;
102
103 n = c->extended_cpuid_level;
104
105 if (n >= 0x80000005) {
106 cpuid(0x80000005, &dummy, &ebx, &ecx, &edx);
107 printk(KERN_INFO "CPU: L1 I Cache: %dK (%d bytes/line), "
108 "D cache %dK (%d bytes/line)\n",
109 edx>>24, edx&0xFF, ecx>>24, ecx&0xFF);
110 c->x86_cache_size = (ecx>>24) + (edx>>24);
111 /* On K8 L1 TLB is inclusive, so don't count it */
112 c->x86_tlbsize = 0;
113 }
114
115 if (n >= 0x80000006) {
116 cpuid(0x80000006, &dummy, &ebx, &ecx, &edx);
117 ecx = cpuid_ecx(0x80000006);
118 c->x86_cache_size = ecx >> 16;
119 c->x86_tlbsize += ((ebx >> 16) & 0xfff) + (ebx & 0xfff);
120
121 printk(KERN_INFO "CPU: L2 Cache: %dK (%d bytes/line)\n",
122 c->x86_cache_size, ecx & 0xFF);
123 }
124}
125
126void __cpuinit detect_ht(struct cpuinfo_x86 *c)
127{
128#ifdef CONFIG_SMP
129 u32 eax, ebx, ecx, edx;
130 int index_msb, core_bits;
131
132 cpuid(1, &eax, &ebx, &ecx, &edx);
133
134
135 if (!cpu_has(c, X86_FEATURE_HT))
136 return;
137 if (cpu_has(c, X86_FEATURE_CMP_LEGACY))
138 goto out;
139
140 smp_num_siblings = (ebx & 0xff0000) >> 16;
141
142 if (smp_num_siblings == 1) {
143 printk(KERN_INFO "CPU: Hyper-Threading is disabled\n");
144 } else if (smp_num_siblings > 1) {
145
146 if (smp_num_siblings > NR_CPUS) {
147 printk(KERN_WARNING "CPU: Unsupported number of "
148 "siblings %d", smp_num_siblings);
149 smp_num_siblings = 1;
150 return;
151 }
152
153 index_msb = get_count_order(smp_num_siblings);
154 c->phys_proc_id = phys_pkg_id(index_msb);
155
156 smp_num_siblings = smp_num_siblings / c->x86_max_cores;
157
158 index_msb = get_count_order(smp_num_siblings);
159
160 core_bits = get_count_order(c->x86_max_cores);
161
162 c->cpu_core_id = phys_pkg_id(index_msb) &
163 ((1 << core_bits) - 1);
164 }
165out:
166 if ((c->x86_max_cores * smp_num_siblings) > 1) {
167 printk(KERN_INFO "CPU: Physical Processor ID: %d\n",
168 c->phys_proc_id);
169 printk(KERN_INFO "CPU: Processor Core ID: %d\n",
170 c->cpu_core_id);
171 }
172
173#endif
174}
175
176static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
177{
178 char *v = c->x86_vendor_id;
179 int i;
180 static int printed;
181
182 for (i = 0; i < X86_VENDOR_NUM; i++) {
183 if (cpu_devs[i]) {
184 if (!strcmp(v, cpu_devs[i]->c_ident[0]) ||
185 (cpu_devs[i]->c_ident[1] &&
186 !strcmp(v, cpu_devs[i]->c_ident[1]))) {
187 c->x86_vendor = i;
188 this_cpu = cpu_devs[i];
189 return;
190 }
191 }
192 }
193 if (!printed) {
194 printed++;
195 printk(KERN_ERR "CPU: Vendor unknown, using generic init.\n");
196 printk(KERN_ERR "CPU: Your system may be unstable.\n");
197 }
198 c->x86_vendor = X86_VENDOR_UNKNOWN;
199}
200
201static void __init early_cpu_support_print(void)
202{
203 int i,j;
204 struct cpu_dev *cpu_devx;
205
206 printk("KERNEL supported cpus:\n");
207 for (i = 0; i < X86_VENDOR_NUM; i++) {
208 cpu_devx = cpu_devs[i];
209 if (!cpu_devx)
210 continue;
211 for (j = 0; j < 2; j++) {
212 if (!cpu_devx->c_ident[j])
213 continue;
214 printk(" %s %s\n", cpu_devx->c_vendor,
215 cpu_devx->c_ident[j]);
216 }
217 }
218}
219
220static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c);
221
222void __init early_cpu_init(void)
223{
224 struct cpu_vendor_dev *cvdev;
225
226 for (cvdev = __x86cpuvendor_start ;
227 cvdev < __x86cpuvendor_end ;
228 cvdev++)
229 cpu_devs[cvdev->vendor] = cvdev->cpu_dev;
230 early_cpu_support_print();
231 early_identify_cpu(&boot_cpu_data);
232}
233
234/* Do some early cpuid on the boot CPU to get some parameter that are
235 needed before check_bugs. Everything advanced is in identify_cpu
236 below. */
237static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
238{
239 u32 tfms, xlvl;
240
241 c->loops_per_jiffy = loops_per_jiffy;
242 c->x86_cache_size = -1;
243 c->x86_vendor = X86_VENDOR_UNKNOWN;
244 c->x86_model = c->x86_mask = 0; /* So far unknown... */
245 c->x86_vendor_id[0] = '\0'; /* Unset */
246 c->x86_model_id[0] = '\0'; /* Unset */
247 c->x86_clflush_size = 64;
248 c->x86_cache_alignment = c->x86_clflush_size;
249 c->x86_max_cores = 1;
250 c->x86_coreid_bits = 0;
251 c->extended_cpuid_level = 0;
252 memset(&c->x86_capability, 0, sizeof c->x86_capability);
253
254 /* Get vendor name */
255 cpuid(0x00000000, (unsigned int *)&c->cpuid_level,
256 (unsigned int *)&c->x86_vendor_id[0],
257 (unsigned int *)&c->x86_vendor_id[8],
258 (unsigned int *)&c->x86_vendor_id[4]);
259
260 get_cpu_vendor(c);
261
262 /* Initialize the standard set of capabilities */
263 /* Note that the vendor-specific code below might override */
264
265 /* Intel-defined flags: level 0x00000001 */
266 if (c->cpuid_level >= 0x00000001) {
267 __u32 misc;
268 cpuid(0x00000001, &tfms, &misc, &c->x86_capability[4],
269 &c->x86_capability[0]);
270 c->x86 = (tfms >> 8) & 0xf;
271 c->x86_model = (tfms >> 4) & 0xf;
272 c->x86_mask = tfms & 0xf;
273 if (c->x86 == 0xf)
274 c->x86 += (tfms >> 20) & 0xff;
275 if (c->x86 >= 0x6)
276 c->x86_model += ((tfms >> 16) & 0xF) << 4;
277 if (test_cpu_cap(c, X86_FEATURE_CLFLSH))
278 c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
279 } else {
280 /* Have CPUID level 0 only - unheard of */
281 c->x86 = 4;
282 }
283
284 c->initial_apicid = (cpuid_ebx(1) >> 24) & 0xff;
285#ifdef CONFIG_SMP
286 c->phys_proc_id = c->initial_apicid;
287#endif
288 /* AMD-defined flags: level 0x80000001 */
289 xlvl = cpuid_eax(0x80000000);
290 c->extended_cpuid_level = xlvl;
291 if ((xlvl & 0xffff0000) == 0x80000000) {
292 if (xlvl >= 0x80000001) {
293 c->x86_capability[1] = cpuid_edx(0x80000001);
294 c->x86_capability[6] = cpuid_ecx(0x80000001);
295 }
296 if (xlvl >= 0x80000004)
297 get_model_name(c); /* Default name */
298 }
299
300 /* Transmeta-defined flags: level 0x80860001 */
301 xlvl = cpuid_eax(0x80860000);
302 if ((xlvl & 0xffff0000) == 0x80860000) {
303 /* Don't set x86_cpuid_level here for now to not confuse. */
304 if (xlvl >= 0x80860001)
305 c->x86_capability[2] = cpuid_edx(0x80860001);
306 }
307
308 c->extended_cpuid_level = cpuid_eax(0x80000000);
309 if (c->extended_cpuid_level >= 0x80000007)
310 c->x86_power = cpuid_edx(0x80000007);
311
312 if (c->extended_cpuid_level >= 0x80000008) {
313 u32 eax = cpuid_eax(0x80000008);
314
315 c->x86_virt_bits = (eax >> 8) & 0xff;
316 c->x86_phys_bits = eax & 0xff;
317 }
318
319 /* Assume all 64-bit CPUs support 32-bit syscall */
320 set_cpu_cap(c, X86_FEATURE_SYSCALL32);
321
322 if (c->x86_vendor != X86_VENDOR_UNKNOWN &&
323 cpu_devs[c->x86_vendor]->c_early_init)
324 cpu_devs[c->x86_vendor]->c_early_init(c);
325
326 validate_pat_support(c);
327
328 /* early_param could clear that, but recall get it set again */
329 if (disable_apic)
330 clear_cpu_cap(c, X86_FEATURE_APIC);
331}
332
333/*
334 * This does the hard work of actually picking apart the CPU stuff...
335 */
336static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
337{
338 int i;
339
340 early_identify_cpu(c);
341
342 init_scattered_cpuid_features(c);
343
344 c->apicid = phys_pkg_id(0);
345
346 /*
347 * Vendor-specific initialization. In this section we
348 * canonicalize the feature flags, meaning if there are
349 * features a certain CPU supports which CPUID doesn't
350 * tell us, CPUID claiming incorrect flags, or other bugs,
351 * we handle them here.
352 *
353 * At the end of this section, c->x86_capability better
354 * indicate the features this CPU genuinely supports!
355 */
356 if (this_cpu->c_init)
357 this_cpu->c_init(c);
358
359 detect_ht(c);
360
361 /*
362 * On SMP, boot_cpu_data holds the common feature set between
363 * all CPUs; so make sure that we indicate which features are
364 * common between the CPUs. The first time this routine gets
365 * executed, c == &boot_cpu_data.
366 */
367 if (c != &boot_cpu_data) {
368 /* AND the already accumulated flags with these */
369 for (i = 0; i < NCAPINTS; i++)
370 boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
371 }
372
373 /* Clear all flags overriden by options */
374 for (i = 0; i < NCAPINTS; i++)
375 c->x86_capability[i] &= ~cleared_cpu_caps[i];
376
377#ifdef CONFIG_X86_MCE
378 mcheck_init(c);
379#endif
380 select_idle_routine(c);
381
382#ifdef CONFIG_NUMA
383 numa_add_cpu(smp_processor_id());
384#endif
385
386}
387
388void __cpuinit identify_boot_cpu(void)
389{
390 identify_cpu(&boot_cpu_data);
391}
392
393void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
394{
395 BUG_ON(c == &boot_cpu_data);
396 identify_cpu(c);
397 mtrr_ap_init();
398}
399
400static __init int setup_noclflush(char *arg)
401{
402 setup_clear_cpu_cap(X86_FEATURE_CLFLSH);
403 return 1;
404}
405__setup("noclflush", setup_noclflush);
406
407void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
408{
409 if (c->x86_model_id[0])
410 printk(KERN_CONT "%s", c->x86_model_id);
411
412 if (c->x86_mask || c->cpuid_level >= 0)
413 printk(KERN_CONT " stepping %02x\n", c->x86_mask);
414 else
415 printk(KERN_CONT "\n");
416}
417
418static __init int setup_disablecpuid(char *arg)
419{
420 int bit;
421 if (get_option(&arg, &bit) && bit < NCAPINTS*32)
422 setup_clear_cpu_cap(bit);
423 else
424 return 0;
425 return 1;
426}
427__setup("clearcpuid=", setup_disablecpuid);
428
429cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
430
431struct x8664_pda **_cpu_pda __read_mostly;
432EXPORT_SYMBOL(_cpu_pda);
433
434struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
435
436char boot_cpu_stack[IRQSTACKSIZE] __page_aligned_bss;
437
438unsigned long __supported_pte_mask __read_mostly = ~0UL;
439EXPORT_SYMBOL_GPL(__supported_pte_mask);
440
441static int do_not_nx __cpuinitdata;
442
443/* noexec=on|off
444Control non executable mappings for 64bit processes.
445
446on Enable(default)
447off Disable
448*/
449static int __init nonx_setup(char *str)
450{
451 if (!str)
452 return -EINVAL;
453 if (!strncmp(str, "on", 2)) {
454 __supported_pte_mask |= _PAGE_NX;
455 do_not_nx = 0;
456 } else if (!strncmp(str, "off", 3)) {
457 do_not_nx = 1;
458 __supported_pte_mask &= ~_PAGE_NX;
459 }
460 return 0;
461}
462early_param("noexec", nonx_setup);
463
464int force_personality32;
465
466/* noexec32=on|off
467Control non executable heap for 32bit processes.
468To control the stack too use noexec=off
469
470on PROT_READ does not imply PROT_EXEC for 32bit processes (default)
471off PROT_READ implies PROT_EXEC
472*/
473static int __init nonx32_setup(char *str)
474{
475 if (!strcmp(str, "on"))
476 force_personality32 &= ~READ_IMPLIES_EXEC;
477 else if (!strcmp(str, "off"))
478 force_personality32 |= READ_IMPLIES_EXEC;
479 return 1;
480}
481__setup("noexec32=", nonx32_setup);
482
483void pda_init(int cpu)
484{
485 struct x8664_pda *pda = cpu_pda(cpu);
486
487 /* Setup up data that may be needed in __get_free_pages early */
488 loadsegment(fs, 0);
489 loadsegment(gs, 0);
490 /* Memory clobbers used to order PDA accessed */
491 mb();
492 wrmsrl(MSR_GS_BASE, pda);
493 mb();
494
495 pda->cpunumber = cpu;
496 pda->irqcount = -1;
497 pda->kernelstack = (unsigned long)stack_thread_info() -
498 PDA_STACKOFFSET + THREAD_SIZE;
499 pda->active_mm = &init_mm;
500 pda->mmu_state = 0;
501
502 if (cpu == 0) {
503 /* others are initialized in smpboot.c */
504 pda->pcurrent = &init_task;
505 pda->irqstackptr = boot_cpu_stack;
506 } else {
507 pda->irqstackptr = (char *)
508 __get_free_pages(GFP_ATOMIC, IRQSTACK_ORDER);
509 if (!pda->irqstackptr)
510 panic("cannot allocate irqstack for cpu %d", cpu);
511
512 if (pda->nodenumber == 0 && cpu_to_node(cpu) != NUMA_NO_NODE)
513 pda->nodenumber = cpu_to_node(cpu);
514 }
515
516 pda->irqstackptr += IRQSTACKSIZE-64;
517}
518
519char boot_exception_stacks[(N_EXCEPTION_STACKS - 1) * EXCEPTION_STKSZ +
520 DEBUG_STKSZ]
521__attribute__((section(".bss.page_aligned")));
522
523extern asmlinkage void ignore_sysret(void);
524
525/* May not be marked __init: used by software suspend */
526void syscall_init(void)
527{
528 /*
529 * LSTAR and STAR live in a bit strange symbiosis.
530 * They both write to the same internal register. STAR allows to
531 * set CS/DS but only a 32bit target. LSTAR sets the 64bit rip.
532 */
533 wrmsrl(MSR_STAR, ((u64)__USER32_CS)<<48 | ((u64)__KERNEL_CS)<<32);
534 wrmsrl(MSR_LSTAR, system_call);
535 wrmsrl(MSR_CSTAR, ignore_sysret);
536
537#ifdef CONFIG_IA32_EMULATION
538 syscall32_cpu_init();
539#endif
540
541 /* Flags to clear on syscall */
542 wrmsrl(MSR_SYSCALL_MASK,
543 X86_EFLAGS_TF|X86_EFLAGS_DF|X86_EFLAGS_IF|X86_EFLAGS_IOPL);
544}
545
546void __cpuinit check_efer(void)
547{
548 unsigned long efer;
549
550 rdmsrl(MSR_EFER, efer);
551 if (!(efer & EFER_NX) || do_not_nx)
552 __supported_pte_mask &= ~_PAGE_NX;
553}
554
555unsigned long kernel_eflags;
556
557/*
558 * Copies of the original ist values from the tss are only accessed during
559 * debugging, no special alignment required.
560 */
561DEFINE_PER_CPU(struct orig_ist, orig_ist);
562
563/*
564 * cpu_init() initializes state that is per-CPU. Some data is already
565 * initialized (naturally) in the bootstrap process, such as the GDT
566 * and IDT. We reload them nevertheless, this function acts as a
567 * 'CPU state barrier', nothing should get across.
568 * A lot of state is already set up in PDA init.
569 */
570void __cpuinit cpu_init(void)
571{
572 int cpu = stack_smp_processor_id();
573 struct tss_struct *t = &per_cpu(init_tss, cpu);
574 struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu);
575 unsigned long v;
576 char *estacks = NULL;
577 struct task_struct *me;
578 int i;
579
580 /* CPU 0 is initialised in head64.c */
581 if (cpu != 0)
582 pda_init(cpu);
583 else
584 estacks = boot_exception_stacks;
585
586 me = current;
587
588 if (cpu_test_and_set(cpu, cpu_initialized))
589 panic("CPU#%d already initialized!\n", cpu);
590
591 printk(KERN_INFO "Initializing CPU#%d\n", cpu);
592
593 clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
594
595 /*
596 * Initialize the per-CPU GDT with the boot GDT,
597 * and set up the GDT descriptor:
598 */
599
600 switch_to_new_gdt();
601 load_idt((const struct desc_ptr *)&idt_descr);
602
603 memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8);
604 syscall_init();
605
606 wrmsrl(MSR_FS_BASE, 0);
607 wrmsrl(MSR_KERNEL_GS_BASE, 0);
608 barrier();
609
610 check_efer();
611
612 /*
613 * set up and load the per-CPU TSS
614 */
615 for (v = 0; v < N_EXCEPTION_STACKS; v++) {
616 static const unsigned int order[N_EXCEPTION_STACKS] = {
617 [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER,
618 [DEBUG_STACK - 1] = DEBUG_STACK_ORDER
619 };
620 if (cpu) {
621 estacks = (char *)__get_free_pages(GFP_ATOMIC, order[v]);
622 if (!estacks)
623 panic("Cannot allocate exception stack %ld %d\n",
624 v, cpu);
625 }
626 estacks += PAGE_SIZE << order[v];
627 orig_ist->ist[v] = t->x86_tss.ist[v] = (unsigned long)estacks;
628 }
629
630 t->x86_tss.io_bitmap_base = offsetof(struct tss_struct, io_bitmap);
631 /*
632 * <= is required because the CPU will access up to
633 * 8 bits beyond the end of the IO permission bitmap.
634 */
635 for (i = 0; i <= IO_BITMAP_LONGS; i++)
636 t->io_bitmap[i] = ~0UL;
637
638 atomic_inc(&init_mm.mm_count);
639 me->active_mm = &init_mm;
640 if (me->mm)
641 BUG();
642 enter_lazy_tlb(&init_mm, me);
643
644 load_sp0(t, &current->thread);
645 set_tss_desc(cpu, t);
646 load_TR_desc();
647 load_LDT(&init_mm.context);
648
649#ifdef CONFIG_KGDB
650 /*
651 * If the kgdb is connected no debug regs should be altered. This
652 * is only applicable when KGDB and a KGDB I/O module are built
653 * into the kernel and you are using early debugging with
654 * kgdbwait. KGDB will control the kernel HW breakpoint registers.
655 */
656 if (kgdb_connected && arch_kgdb_ops.correct_hw_break)
657 arch_kgdb_ops.correct_hw_break();
658 else {
659#endif
660 /*
661 * Clear all 6 debug registers:
662 */
663
664 set_debugreg(0UL, 0);
665 set_debugreg(0UL, 1);
666 set_debugreg(0UL, 2);
667 set_debugreg(0UL, 3);
668 set_debugreg(0UL, 6);
669 set_debugreg(0UL, 7);
670#ifdef CONFIG_KGDB
671 /* If the kgdb is connected no debug regs should be altered. */
672 }
673#endif
674
675 fpu_init();
676
677 raw_local_save_flags(kernel_eflags);
678
679 if (is_uv_system())
680 uv_cpu_init();
681}
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index 783691b2a738..4d894e8565fe 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -1,3 +1,6 @@
1#ifndef ARCH_X86_CPU_H
2
3#define ARCH_X86_CPU_H
1 4
2struct cpu_model_info { 5struct cpu_model_info {
3 int vendor; 6 int vendor;
@@ -36,3 +39,5 @@ extern struct cpu_vendor_dev __x86cpuvendor_start[], __x86cpuvendor_end[];
36 39
37extern int get_model_name(struct cpuinfo_x86 *c); 40extern int get_model_name(struct cpuinfo_x86 *c);
38extern void display_cacheinfo(struct cpuinfo_x86 *c); 41extern void display_cacheinfo(struct cpuinfo_x86 *c);
42
43#endif
diff --git a/arch/x86/kernel/cpu/cpufreq/cpufreq-nforce2.c b/arch/x86/kernel/cpu/cpufreq/cpufreq-nforce2.c
index f03e9153618e..965ea52767ac 100644
--- a/arch/x86/kernel/cpu/cpufreq/cpufreq-nforce2.c
+++ b/arch/x86/kernel/cpu/cpufreq/cpufreq-nforce2.c
@@ -26,9 +26,10 @@
26#define NFORCE2_SAFE_DISTANCE 50 26#define NFORCE2_SAFE_DISTANCE 50
27 27
28/* Delay in ms between FSB changes */ 28/* Delay in ms between FSB changes */
29//#define NFORCE2_DELAY 10 29/* #define NFORCE2_DELAY 10 */
30 30
31/* nforce2_chipset: 31/*
32 * nforce2_chipset:
32 * FSB is changed using the chipset 33 * FSB is changed using the chipset
33 */ 34 */
34static struct pci_dev *nforce2_chipset_dev; 35static struct pci_dev *nforce2_chipset_dev;
@@ -36,13 +37,13 @@ static struct pci_dev *nforce2_chipset_dev;
36/* fid: 37/* fid:
37 * multiplier * 10 38 * multiplier * 10
38 */ 39 */
39static int fid = 0; 40static int fid;
40 41
41/* min_fsb, max_fsb: 42/* min_fsb, max_fsb:
42 * minimum and maximum FSB (= FSB at boot time) 43 * minimum and maximum FSB (= FSB at boot time)
43 */ 44 */
44static int min_fsb = 0; 45static int min_fsb;
45static int max_fsb = 0; 46static int max_fsb;
46 47
47MODULE_AUTHOR("Sebastian Witt <se.witt@gmx.net>"); 48MODULE_AUTHOR("Sebastian Witt <se.witt@gmx.net>");
48MODULE_DESCRIPTION("nForce2 FSB changing cpufreq driver"); 49MODULE_DESCRIPTION("nForce2 FSB changing cpufreq driver");
@@ -53,7 +54,7 @@ module_param(min_fsb, int, 0444);
53 54
54MODULE_PARM_DESC(fid, "CPU multiplier to use (11.5 = 115)"); 55MODULE_PARM_DESC(fid, "CPU multiplier to use (11.5 = 115)");
55MODULE_PARM_DESC(min_fsb, 56MODULE_PARM_DESC(min_fsb,
56 "Minimum FSB to use, if not defined: current FSB - 50"); 57 "Minimum FSB to use, if not defined: current FSB - 50");
57 58
58#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "cpufreq-nforce2", msg) 59#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "cpufreq-nforce2", msg)
59 60
@@ -139,7 +140,7 @@ static unsigned int nforce2_fsb_read(int bootfsb)
139 140
140 /* Get chipset boot FSB from subdevice 5 (FSB at boot-time) */ 141 /* Get chipset boot FSB from subdevice 5 (FSB at boot-time) */
141 nforce2_sub5 = pci_get_subsys(PCI_VENDOR_ID_NVIDIA, 142 nforce2_sub5 = pci_get_subsys(PCI_VENDOR_ID_NVIDIA,
142 0x01EF,PCI_ANY_ID,PCI_ANY_ID,NULL); 143 0x01EF, PCI_ANY_ID, PCI_ANY_ID, NULL);
143 if (!nforce2_sub5) 144 if (!nforce2_sub5)
144 return 0; 145 return 0;
145 146
@@ -147,13 +148,13 @@ static unsigned int nforce2_fsb_read(int bootfsb)
147 fsb /= 1000000; 148 fsb /= 1000000;
148 149
149 /* Check if PLL register is already set */ 150 /* Check if PLL register is already set */
150 pci_read_config_byte(nforce2_chipset_dev,NFORCE2_PLLENABLE, (u8 *)&temp); 151 pci_read_config_byte(nforce2_chipset_dev, NFORCE2_PLLENABLE, (u8 *)&temp);
151 152
152 if(bootfsb || !temp) 153 if (bootfsb || !temp)
153 return fsb; 154 return fsb;
154 155
155 /* Use PLL register FSB value */ 156 /* Use PLL register FSB value */
156 pci_read_config_dword(nforce2_chipset_dev,NFORCE2_PLLREG, &temp); 157 pci_read_config_dword(nforce2_chipset_dev, NFORCE2_PLLREG, &temp);
157 fsb = nforce2_calc_fsb(temp); 158 fsb = nforce2_calc_fsb(temp);
158 159
159 return fsb; 160 return fsb;
@@ -184,7 +185,7 @@ static int nforce2_set_fsb(unsigned int fsb)
184 } 185 }
185 186
186 /* First write? Then set actual value */ 187 /* First write? Then set actual value */
187 pci_read_config_byte(nforce2_chipset_dev,NFORCE2_PLLENABLE, (u8 *)&temp); 188 pci_read_config_byte(nforce2_chipset_dev, NFORCE2_PLLENABLE, (u8 *)&temp);
188 if (!temp) { 189 if (!temp) {
189 pll = nforce2_calc_pll(tfsb); 190 pll = nforce2_calc_pll(tfsb);
190 191
@@ -210,7 +211,8 @@ static int nforce2_set_fsb(unsigned int fsb)
210 tfsb--; 211 tfsb--;
211 212
212 /* Calculate the PLL reg. value */ 213 /* Calculate the PLL reg. value */
213 if ((pll = nforce2_calc_pll(tfsb)) == -1) 214 pll = nforce2_calc_pll(tfsb);
215 if (pll == -1)
214 return -EINVAL; 216 return -EINVAL;
215 217
216 nforce2_write_pll(pll); 218 nforce2_write_pll(pll);
@@ -249,7 +251,7 @@ static unsigned int nforce2_get(unsigned int cpu)
249static int nforce2_target(struct cpufreq_policy *policy, 251static int nforce2_target(struct cpufreq_policy *policy,
250 unsigned int target_freq, unsigned int relation) 252 unsigned int target_freq, unsigned int relation)
251{ 253{
252// unsigned long flags; 254/* unsigned long flags; */
253 struct cpufreq_freqs freqs; 255 struct cpufreq_freqs freqs;
254 unsigned int target_fsb; 256 unsigned int target_fsb;
255 257
@@ -271,17 +273,17 @@ static int nforce2_target(struct cpufreq_policy *policy,
271 cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); 273 cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
272 274
273 /* Disable IRQs */ 275 /* Disable IRQs */
274 //local_irq_save(flags); 276 /* local_irq_save(flags); */
275 277
276 if (nforce2_set_fsb(target_fsb) < 0) 278 if (nforce2_set_fsb(target_fsb) < 0)
277 printk(KERN_ERR "cpufreq: Changing FSB to %d failed\n", 279 printk(KERN_ERR "cpufreq: Changing FSB to %d failed\n",
278 target_fsb); 280 target_fsb);
279 else 281 else
280 dprintk("Changed FSB successfully to %d\n", 282 dprintk("Changed FSB successfully to %d\n",
281 target_fsb); 283 target_fsb);
282 284
283 /* Enable IRQs */ 285 /* Enable IRQs */
284 //local_irq_restore(flags); 286 /* local_irq_restore(flags); */
285 287
286 cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); 288 cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
287 289
@@ -302,8 +304,8 @@ static int nforce2_verify(struct cpufreq_policy *policy)
302 policy->max = (fsb_pol_max + 1) * fid * 100; 304 policy->max = (fsb_pol_max + 1) * fid * 100;
303 305
304 cpufreq_verify_within_limits(policy, 306 cpufreq_verify_within_limits(policy,
305 policy->cpuinfo.min_freq, 307 policy->cpuinfo.min_freq,
306 policy->cpuinfo.max_freq); 308 policy->cpuinfo.max_freq);
307 return 0; 309 return 0;
308} 310}
309 311
@@ -347,7 +349,7 @@ static int nforce2_cpu_init(struct cpufreq_policy *policy)
347 /* Set maximum FSB to FSB at boot time */ 349 /* Set maximum FSB to FSB at boot time */
348 max_fsb = nforce2_fsb_read(1); 350 max_fsb = nforce2_fsb_read(1);
349 351
350 if(!max_fsb) 352 if (!max_fsb)
351 return -EIO; 353 return -EIO;
352 354
353 if (!min_fsb) 355 if (!min_fsb)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index fe9224c51d37..70609efdf1da 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -226,6 +226,10 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
226 226
227 if (cpu_has_bts) 227 if (cpu_has_bts)
228 ds_init_intel(c); 228 ds_init_intel(c);
229
230#ifdef CONFIG_X86_NUMAQ
231 numaq_tsc_disable();
232#endif
229} 233}
230 234
231static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 *c, unsigned int size) 235static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 *c, unsigned int size)
diff --git a/arch/x86/kernel/cpu/intel_64.c b/arch/x86/kernel/cpu/intel_64.c
new file mode 100644
index 000000000000..1019c58d39f0
--- /dev/null
+++ b/arch/x86/kernel/cpu/intel_64.c
@@ -0,0 +1,95 @@
1#include <linux/init.h>
2#include <linux/smp.h>
3#include <asm/processor.h>
4#include <asm/ptrace.h>
5#include <asm/topology.h>
6#include <asm/numa_64.h>
7
8#include "cpu.h"
9
10static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
11{
12 if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
13 (c->x86 == 0x6 && c->x86_model >= 0x0e))
14 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
15
16 set_cpu_cap(c, X86_FEATURE_SYSENTER32);
17}
18
19/*
20 * find out the number of processor cores on the die
21 */
22static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c)
23{
24 unsigned int eax, t;
25
26 if (c->cpuid_level < 4)
27 return 1;
28
29 cpuid_count(4, 0, &eax, &t, &t, &t);
30
31 if (eax & 0x1f)
32 return ((eax >> 26) + 1);
33 else
34 return 1;
35}
36
37static void __cpuinit srat_detect_node(void)
38{
39#ifdef CONFIG_NUMA
40 unsigned node;
41 int cpu = smp_processor_id();
42 int apicid = hard_smp_processor_id();
43
44 /* Don't do the funky fallback heuristics the AMD version employs
45 for now. */
46 node = apicid_to_node[apicid];
47 if (node == NUMA_NO_NODE || !node_online(node))
48 node = first_node(node_online_map);
49 numa_set_node(cpu, node);
50
51 printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
52#endif
53}
54
55static void __cpuinit init_intel(struct cpuinfo_x86 *c)
56{
57 init_intel_cacheinfo(c);
58 if (c->cpuid_level > 9) {
59 unsigned eax = cpuid_eax(10);
60 /* Check for version and the number of counters */
61 if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
62 set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
63 }
64
65 if (cpu_has_ds) {
66 unsigned int l1, l2;
67 rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
68 if (!(l1 & (1<<11)))
69 set_cpu_cap(c, X86_FEATURE_BTS);
70 if (!(l1 & (1<<12)))
71 set_cpu_cap(c, X86_FEATURE_PEBS);
72 }
73
74
75 if (cpu_has_bts)
76 ds_init_intel(c);
77
78 if (c->x86 == 15)
79 c->x86_cache_alignment = c->x86_clflush_size * 2;
80 if (c->x86 == 6)
81 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
82 set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
83 c->x86_max_cores = intel_num_cpu_cores(c);
84
85 srat_detect_node();
86}
87
88static struct cpu_dev intel_cpu_dev __cpuinitdata = {
89 .c_vendor = "Intel",
90 .c_ident = { "GenuineIntel" },
91 .c_early_init = early_init_intel,
92 .c_init = init_intel,
93};
94cpu_vendor_dev_register(X86_VENDOR_INTEL, &intel_cpu_dev);
95
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 26d615dcb149..2c8afafa18e8 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -62,6 +62,7 @@ static struct _cache_table cache_table[] __cpuinitdata =
62 { 0x4b, LVL_3, 8192 }, /* 16-way set assoc, 64 byte line size */ 62 { 0x4b, LVL_3, 8192 }, /* 16-way set assoc, 64 byte line size */
63 { 0x4c, LVL_3, 12288 }, /* 12-way set assoc, 64 byte line size */ 63 { 0x4c, LVL_3, 12288 }, /* 12-way set assoc, 64 byte line size */
64 { 0x4d, LVL_3, 16384 }, /* 16-way set assoc, 64 byte line size */ 64 { 0x4d, LVL_3, 16384 }, /* 16-way set assoc, 64 byte line size */
65 { 0x4e, LVL_2, 6144 }, /* 24-way set assoc, 64 byte line size */
65 { 0x60, LVL_1_DATA, 16 }, /* 8-way set assoc, sectored cache, 64 byte line size */ 66 { 0x60, LVL_1_DATA, 16 }, /* 8-way set assoc, sectored cache, 64 byte line size */
66 { 0x66, LVL_1_DATA, 8 }, /* 4-way set assoc, sectored cache, 64 byte line size */ 67 { 0x66, LVL_1_DATA, 8 }, /* 4-way set assoc, sectored cache, 64 byte line size */
67 { 0x67, LVL_1_DATA, 16 }, /* 4-way set assoc, sectored cache, 64 byte line size */ 68 { 0x67, LVL_1_DATA, 16 }, /* 4-way set assoc, sectored cache, 64 byte line size */
diff --git a/arch/x86/kernel/cpu/mcheck/k7.c b/arch/x86/kernel/cpu/mcheck/k7.c
index e633c9c2b764..f390c9f66351 100644
--- a/arch/x86/kernel/cpu/mcheck/k7.c
+++ b/arch/x86/kernel/cpu/mcheck/k7.c
@@ -9,23 +9,23 @@
9#include <linux/interrupt.h> 9#include <linux/interrupt.h>
10#include <linux/smp.h> 10#include <linux/smp.h>
11 11
12#include <asm/processor.h> 12#include <asm/processor.h>
13#include <asm/system.h> 13#include <asm/system.h>
14#include <asm/msr.h> 14#include <asm/msr.h>
15 15
16#include "mce.h" 16#include "mce.h"
17 17
18/* Machine Check Handler For AMD Athlon/Duron */ 18/* Machine Check Handler For AMD Athlon/Duron */
19static void k7_machine_check(struct pt_regs * regs, long error_code) 19static void k7_machine_check(struct pt_regs *regs, long error_code)
20{ 20{
21 int recover=1; 21 int recover = 1;
22 u32 alow, ahigh, high, low; 22 u32 alow, ahigh, high, low;
23 u32 mcgstl, mcgsth; 23 u32 mcgstl, mcgsth;
24 int i; 24 int i;
25 25
26 rdmsr (MSR_IA32_MCG_STATUS, mcgstl, mcgsth); 26 rdmsr(MSR_IA32_MCG_STATUS, mcgstl, mcgsth);
27 if (mcgstl & (1<<0)) /* Recoverable ? */ 27 if (mcgstl & (1<<0)) /* Recoverable ? */
28 recover=0; 28 recover = 0;
29 29
30 printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n", 30 printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
31 smp_processor_id(), mcgsth, mcgstl); 31 smp_processor_id(), mcgsth, mcgstl);
@@ -60,12 +60,12 @@ static void k7_machine_check(struct pt_regs * regs, long error_code)
60 } 60 }
61 61
62 if (recover&2) 62 if (recover&2)
63 panic ("CPU context corrupt"); 63 panic("CPU context corrupt");
64 if (recover&1) 64 if (recover&1)
65 panic ("Unable to continue"); 65 panic("Unable to continue");
66 printk (KERN_EMERG "Attempting to continue.\n"); 66 printk(KERN_EMERG "Attempting to continue.\n");
67 mcgstl &= ~(1<<2); 67 mcgstl &= ~(1<<2);
68 wrmsr (MSR_IA32_MCG_STATUS,mcgstl, mcgsth); 68 wrmsr(MSR_IA32_MCG_STATUS, mcgstl, mcgsth);
69} 69}
70 70
71 71
@@ -81,25 +81,25 @@ void amd_mcheck_init(struct cpuinfo_x86 *c)
81 machine_check_vector = k7_machine_check; 81 machine_check_vector = k7_machine_check;
82 wmb(); 82 wmb();
83 83
84 printk (KERN_INFO "Intel machine check architecture supported.\n"); 84 printk(KERN_INFO "Intel machine check architecture supported.\n");
85 rdmsr (MSR_IA32_MCG_CAP, l, h); 85 rdmsr(MSR_IA32_MCG_CAP, l, h);
86 if (l & (1<<8)) /* Control register present ? */ 86 if (l & (1<<8)) /* Control register present ? */
87 wrmsr (MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff); 87 wrmsr(MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
88 nr_mce_banks = l & 0xff; 88 nr_mce_banks = l & 0xff;
89 89
90 /* Clear status for MC index 0 separately, we don't touch CTL, 90 /* Clear status for MC index 0 separately, we don't touch CTL,
91 * as some K7 Athlons cause spurious MCEs when its enabled. */ 91 * as some K7 Athlons cause spurious MCEs when its enabled. */
92 if (boot_cpu_data.x86 == 6) { 92 if (boot_cpu_data.x86 == 6) {
93 wrmsr (MSR_IA32_MC0_STATUS, 0x0, 0x0); 93 wrmsr(MSR_IA32_MC0_STATUS, 0x0, 0x0);
94 i = 1; 94 i = 1;
95 } else 95 } else
96 i = 0; 96 i = 0;
97 for (; i<nr_mce_banks; i++) { 97 for (; i < nr_mce_banks; i++) {
98 wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff); 98 wrmsr(MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
99 wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0); 99 wrmsr(MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
100 } 100 }
101 101
102 set_in_cr4 (X86_CR4_MCE); 102 set_in_cr4(X86_CR4_MCE);
103 printk (KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n", 103 printk(KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n",
104 smp_processor_id()); 104 smp_processor_id());
105} 105}
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index e07e8c068ae0..c4a7ec31394c 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -9,6 +9,7 @@
9#include <linux/types.h> 9#include <linux/types.h>
10#include <linux/kernel.h> 10#include <linux/kernel.h>
11#include <linux/sched.h> 11#include <linux/sched.h>
12#include <linux/smp_lock.h>
12#include <linux/string.h> 13#include <linux/string.h>
13#include <linux/rcupdate.h> 14#include <linux/rcupdate.h>
14#include <linux/kallsyms.h> 15#include <linux/kallsyms.h>
@@ -31,7 +32,7 @@
31#include <asm/idle.h> 32#include <asm/idle.h>
32 33
33#define MISC_MCELOG_MINOR 227 34#define MISC_MCELOG_MINOR 227
34#define NR_BANKS 6 35#define NR_SYSFS_BANKS 6
35 36
36atomic_t mce_entry; 37atomic_t mce_entry;
37 38
@@ -46,7 +47,7 @@ static int mce_dont_init;
46 */ 47 */
47static int tolerant = 1; 48static int tolerant = 1;
48static int banks; 49static int banks;
49static unsigned long bank[NR_BANKS] = { [0 ... NR_BANKS-1] = ~0UL }; 50static unsigned long bank[NR_SYSFS_BANKS] = { [0 ... NR_SYSFS_BANKS-1] = ~0UL };
50static unsigned long notify_user; 51static unsigned long notify_user;
51static int rip_msr; 52static int rip_msr;
52static int mce_bootlog = -1; 53static int mce_bootlog = -1;
@@ -209,7 +210,7 @@ void do_machine_check(struct pt_regs * regs, long error_code)
209 barrier(); 210 barrier();
210 211
211 for (i = 0; i < banks; i++) { 212 for (i = 0; i < banks; i++) {
212 if (!bank[i]) 213 if (i < NR_SYSFS_BANKS && !bank[i])
213 continue; 214 continue;
214 215
215 m.misc = 0; 216 m.misc = 0;
@@ -363,7 +364,7 @@ static void mcheck_check_cpu(void *info)
363 364
364static void mcheck_timer(struct work_struct *work) 365static void mcheck_timer(struct work_struct *work)
365{ 366{
366 on_each_cpu(mcheck_check_cpu, NULL, 1, 1); 367 on_each_cpu(mcheck_check_cpu, NULL, 1);
367 368
368 /* 369 /*
369 * Alert userspace if needed. If we logged an MCE, reduce the 370 * Alert userspace if needed. If we logged an MCE, reduce the
@@ -444,9 +445,10 @@ static void mce_init(void *dummy)
444 445
445 rdmsrl(MSR_IA32_MCG_CAP, cap); 446 rdmsrl(MSR_IA32_MCG_CAP, cap);
446 banks = cap & 0xff; 447 banks = cap & 0xff;
447 if (banks > NR_BANKS) { 448 if (banks > MCE_EXTENDED_BANK) {
448 printk(KERN_INFO "MCE: warning: using only %d banks\n", banks); 449 banks = MCE_EXTENDED_BANK;
449 banks = NR_BANKS; 450 printk(KERN_INFO "MCE: warning: using only %d banks\n",
451 MCE_EXTENDED_BANK);
450 } 452 }
451 /* Use accurate RIP reporting if available. */ 453 /* Use accurate RIP reporting if available. */
452 if ((cap & (1<<9)) && ((cap >> 16) & 0xff) >= 9) 454 if ((cap & (1<<9)) && ((cap >> 16) & 0xff) >= 9)
@@ -462,7 +464,11 @@ static void mce_init(void *dummy)
462 wrmsr(MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff); 464 wrmsr(MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
463 465
464 for (i = 0; i < banks; i++) { 466 for (i = 0; i < banks; i++) {
465 wrmsrl(MSR_IA32_MC0_CTL+4*i, bank[i]); 467 if (i < NR_SYSFS_BANKS)
468 wrmsrl(MSR_IA32_MC0_CTL+4*i, bank[i]);
469 else
470 wrmsrl(MSR_IA32_MC0_CTL+4*i, ~0UL);
471
466 wrmsrl(MSR_IA32_MC0_STATUS+4*i, 0); 472 wrmsrl(MSR_IA32_MC0_STATUS+4*i, 0);
467 } 473 }
468} 474}
@@ -527,10 +533,12 @@ static int open_exclu; /* already open exclusive? */
527 533
528static int mce_open(struct inode *inode, struct file *file) 534static int mce_open(struct inode *inode, struct file *file)
529{ 535{
536 lock_kernel();
530 spin_lock(&mce_state_lock); 537 spin_lock(&mce_state_lock);
531 538
532 if (open_exclu || (open_count && (file->f_flags & O_EXCL))) { 539 if (open_exclu || (open_count && (file->f_flags & O_EXCL))) {
533 spin_unlock(&mce_state_lock); 540 spin_unlock(&mce_state_lock);
541 unlock_kernel();
534 return -EBUSY; 542 return -EBUSY;
535 } 543 }
536 544
@@ -539,6 +547,7 @@ static int mce_open(struct inode *inode, struct file *file)
539 open_count++; 547 open_count++;
540 548
541 spin_unlock(&mce_state_lock); 549 spin_unlock(&mce_state_lock);
550 unlock_kernel();
542 551
543 return nonseekable_open(inode, file); 552 return nonseekable_open(inode, file);
544} 553}
@@ -612,7 +621,7 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
612 * Collect entries that were still getting written before the 621 * Collect entries that were still getting written before the
613 * synchronize. 622 * synchronize.
614 */ 623 */
615 on_each_cpu(collect_tscs, cpu_tsc, 1, 1); 624 on_each_cpu(collect_tscs, cpu_tsc, 1);
616 for (i = next; i < MCE_LOG_LEN; i++) { 625 for (i = next; i < MCE_LOG_LEN; i++) {
617 if (mcelog.entry[i].finished && 626 if (mcelog.entry[i].finished &&
618 mcelog.entry[i].tsc < cpu_tsc[mcelog.entry[i].cpu]) { 627 mcelog.entry[i].tsc < cpu_tsc[mcelog.entry[i].cpu]) {
@@ -737,7 +746,7 @@ static void mce_restart(void)
737 if (next_interval) 746 if (next_interval)
738 cancel_delayed_work(&mcheck_work); 747 cancel_delayed_work(&mcheck_work);
739 /* Timer race is harmless here */ 748 /* Timer race is harmless here */
740 on_each_cpu(mce_init, NULL, 1, 1); 749 on_each_cpu(mce_init, NULL, 1);
741 next_interval = check_interval * HZ; 750 next_interval = check_interval * HZ;
742 if (next_interval) 751 if (next_interval)
743 schedule_delayed_work(&mcheck_work, 752 schedule_delayed_work(&mcheck_work,
@@ -766,7 +775,10 @@ DEFINE_PER_CPU(struct sys_device, device_mce);
766 } \ 775 } \
767 static SYSDEV_ATTR(name, 0644, show_ ## name, set_ ## name); 776 static SYSDEV_ATTR(name, 0644, show_ ## name, set_ ## name);
768 777
769/* TBD should generate these dynamically based on number of available banks */ 778/*
779 * TBD should generate these dynamically based on number of available banks.
780 * Have only 6 contol banks in /sysfs until then.
781 */
770ACCESSOR(bank0ctl,bank[0],mce_restart()) 782ACCESSOR(bank0ctl,bank[0],mce_restart())
771ACCESSOR(bank1ctl,bank[1],mce_restart()) 783ACCESSOR(bank1ctl,bank[1],mce_restart())
772ACCESSOR(bank2ctl,bank[2],mce_restart()) 784ACCESSOR(bank2ctl,bank[2],mce_restart())
diff --git a/arch/x86/kernel/cpu/mcheck/non-fatal.c b/arch/x86/kernel/cpu/mcheck/non-fatal.c
index 00ccb6c14ec2..cc1fccdd31e0 100644
--- a/arch/x86/kernel/cpu/mcheck/non-fatal.c
+++ b/arch/x86/kernel/cpu/mcheck/non-fatal.c
@@ -59,7 +59,7 @@ static DECLARE_DELAYED_WORK(mce_work, mce_work_fn);
59 59
60static void mce_work_fn(struct work_struct *work) 60static void mce_work_fn(struct work_struct *work)
61{ 61{
62 on_each_cpu(mce_checkregs, NULL, 1, 1); 62 on_each_cpu(mce_checkregs, NULL, 1);
63 schedule_delayed_work(&mce_work, round_jiffies_relative(MCE_RATE)); 63 schedule_delayed_work(&mce_work, round_jiffies_relative(MCE_RATE));
64} 64}
65 65
diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c
index cb03345554a5..eef001ad3bde 100644
--- a/arch/x86/kernel/cpu/mcheck/p4.c
+++ b/arch/x86/kernel/cpu/mcheck/p4.c
@@ -8,7 +8,7 @@
8#include <linux/interrupt.h> 8#include <linux/interrupt.h>
9#include <linux/smp.h> 9#include <linux/smp.h>
10 10
11#include <asm/processor.h> 11#include <asm/processor.h>
12#include <asm/system.h> 12#include <asm/system.h>
13#include <asm/msr.h> 13#include <asm/msr.h>
14#include <asm/apic.h> 14#include <asm/apic.h>
@@ -32,12 +32,12 @@ struct intel_mce_extended_msrs {
32 /* u32 *reserved[]; */ 32 /* u32 *reserved[]; */
33}; 33};
34 34
35static int mce_num_extended_msrs = 0; 35static int mce_num_extended_msrs;
36 36
37 37
38#ifdef CONFIG_X86_MCE_P4THERMAL 38#ifdef CONFIG_X86_MCE_P4THERMAL
39static void unexpected_thermal_interrupt(struct pt_regs *regs) 39static void unexpected_thermal_interrupt(struct pt_regs *regs)
40{ 40{
41 printk(KERN_ERR "CPU%d: Unexpected LVT TMR interrupt!\n", 41 printk(KERN_ERR "CPU%d: Unexpected LVT TMR interrupt!\n",
42 smp_processor_id()); 42 smp_processor_id());
43 add_taint(TAINT_MACHINE_CHECK); 43 add_taint(TAINT_MACHINE_CHECK);
@@ -83,7 +83,7 @@ static void intel_init_thermal(struct cpuinfo_x86 *c)
83 * be some SMM goo which handles it, so we can't even put a handler 83 * be some SMM goo which handles it, so we can't even put a handler
84 * since it might be delivered via SMI already -zwanem. 84 * since it might be delivered via SMI already -zwanem.
85 */ 85 */
86 rdmsr (MSR_IA32_MISC_ENABLE, l, h); 86 rdmsr(MSR_IA32_MISC_ENABLE, l, h);
87 h = apic_read(APIC_LVTTHMR); 87 h = apic_read(APIC_LVTTHMR);
88 if ((l & (1<<3)) && (h & APIC_DM_SMI)) { 88 if ((l & (1<<3)) && (h & APIC_DM_SMI)) {
89 printk(KERN_DEBUG "CPU%d: Thermal monitoring handled by SMI\n", 89 printk(KERN_DEBUG "CPU%d: Thermal monitoring handled by SMI\n",
@@ -91,7 +91,7 @@ static void intel_init_thermal(struct cpuinfo_x86 *c)
91 return; /* -EBUSY */ 91 return; /* -EBUSY */
92 } 92 }
93 93
94 /* check whether a vector already exists, temporarily masked? */ 94 /* check whether a vector already exists, temporarily masked? */
95 if (h & APIC_VECTOR_MASK) { 95 if (h & APIC_VECTOR_MASK) {
96 printk(KERN_DEBUG "CPU%d: Thermal LVT vector (%#x) already " 96 printk(KERN_DEBUG "CPU%d: Thermal LVT vector (%#x) already "
97 "installed\n", 97 "installed\n",
@@ -104,18 +104,18 @@ static void intel_init_thermal(struct cpuinfo_x86 *c)
104 h |= (APIC_DM_FIXED | APIC_LVT_MASKED); /* we'll mask till we're ready */ 104 h |= (APIC_DM_FIXED | APIC_LVT_MASKED); /* we'll mask till we're ready */
105 apic_write_around(APIC_LVTTHMR, h); 105 apic_write_around(APIC_LVTTHMR, h);
106 106
107 rdmsr (MSR_IA32_THERM_INTERRUPT, l, h); 107 rdmsr(MSR_IA32_THERM_INTERRUPT, l, h);
108 wrmsr (MSR_IA32_THERM_INTERRUPT, l | 0x03 , h); 108 wrmsr(MSR_IA32_THERM_INTERRUPT, l | 0x03 , h);
109 109
110 /* ok we're good to go... */ 110 /* ok we're good to go... */
111 vendor_thermal_interrupt = intel_thermal_interrupt; 111 vendor_thermal_interrupt = intel_thermal_interrupt;
112
113 rdmsr (MSR_IA32_MISC_ENABLE, l, h);
114 wrmsr (MSR_IA32_MISC_ENABLE, l | (1<<3), h);
115 112
116 l = apic_read (APIC_LVTTHMR); 113 rdmsr(MSR_IA32_MISC_ENABLE, l, h);
117 apic_write_around (APIC_LVTTHMR, l & ~APIC_LVT_MASKED); 114 wrmsr(MSR_IA32_MISC_ENABLE, l | (1<<3), h);
118 printk (KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu); 115
116 l = apic_read(APIC_LVTTHMR);
117 apic_write_around(APIC_LVTTHMR, l & ~APIC_LVT_MASKED);
118 printk(KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu);
119 119
120 /* enable thermal throttle processing */ 120 /* enable thermal throttle processing */
121 atomic_set(&therm_throt_en, 1); 121 atomic_set(&therm_throt_en, 1);
@@ -129,28 +129,28 @@ static inline void intel_get_extended_msrs(struct intel_mce_extended_msrs *r)
129{ 129{
130 u32 h; 130 u32 h;
131 131
132 rdmsr (MSR_IA32_MCG_EAX, r->eax, h); 132 rdmsr(MSR_IA32_MCG_EAX, r->eax, h);
133 rdmsr (MSR_IA32_MCG_EBX, r->ebx, h); 133 rdmsr(MSR_IA32_MCG_EBX, r->ebx, h);
134 rdmsr (MSR_IA32_MCG_ECX, r->ecx, h); 134 rdmsr(MSR_IA32_MCG_ECX, r->ecx, h);
135 rdmsr (MSR_IA32_MCG_EDX, r->edx, h); 135 rdmsr(MSR_IA32_MCG_EDX, r->edx, h);
136 rdmsr (MSR_IA32_MCG_ESI, r->esi, h); 136 rdmsr(MSR_IA32_MCG_ESI, r->esi, h);
137 rdmsr (MSR_IA32_MCG_EDI, r->edi, h); 137 rdmsr(MSR_IA32_MCG_EDI, r->edi, h);
138 rdmsr (MSR_IA32_MCG_EBP, r->ebp, h); 138 rdmsr(MSR_IA32_MCG_EBP, r->ebp, h);
139 rdmsr (MSR_IA32_MCG_ESP, r->esp, h); 139 rdmsr(MSR_IA32_MCG_ESP, r->esp, h);
140 rdmsr (MSR_IA32_MCG_EFLAGS, r->eflags, h); 140 rdmsr(MSR_IA32_MCG_EFLAGS, r->eflags, h);
141 rdmsr (MSR_IA32_MCG_EIP, r->eip, h); 141 rdmsr(MSR_IA32_MCG_EIP, r->eip, h);
142} 142}
143 143
144static void intel_machine_check(struct pt_regs * regs, long error_code) 144static void intel_machine_check(struct pt_regs *regs, long error_code)
145{ 145{
146 int recover=1; 146 int recover = 1;
147 u32 alow, ahigh, high, low; 147 u32 alow, ahigh, high, low;
148 u32 mcgstl, mcgsth; 148 u32 mcgstl, mcgsth;
149 int i; 149 int i;
150 150
151 rdmsr (MSR_IA32_MCG_STATUS, mcgstl, mcgsth); 151 rdmsr(MSR_IA32_MCG_STATUS, mcgstl, mcgsth);
152 if (mcgstl & (1<<0)) /* Recoverable ? */ 152 if (mcgstl & (1<<0)) /* Recoverable ? */
153 recover=0; 153 recover = 0;
154 154
155 printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n", 155 printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
156 smp_processor_id(), mcgsth, mcgstl); 156 smp_processor_id(), mcgsth, mcgstl);
@@ -191,20 +191,20 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
191 } 191 }
192 192
193 if (recover & 2) 193 if (recover & 2)
194 panic ("CPU context corrupt"); 194 panic("CPU context corrupt");
195 if (recover & 1) 195 if (recover & 1)
196 panic ("Unable to continue"); 196 panic("Unable to continue");
197 197
198 printk(KERN_EMERG "Attempting to continue.\n"); 198 printk(KERN_EMERG "Attempting to continue.\n");
199 /* 199 /*
200 * Do not clear the MSR_IA32_MCi_STATUS if the error is not 200 * Do not clear the MSR_IA32_MCi_STATUS if the error is not
201 * recoverable/continuable.This will allow BIOS to look at the MSRs 201 * recoverable/continuable.This will allow BIOS to look at the MSRs
202 * for errors if the OS could not log the error. 202 * for errors if the OS could not log the error.
203 */ 203 */
204 for (i=0; i<nr_mce_banks; i++) { 204 for (i = 0; i < nr_mce_banks; i++) {
205 u32 msr; 205 u32 msr;
206 msr = MSR_IA32_MC0_STATUS+i*4; 206 msr = MSR_IA32_MC0_STATUS+i*4;
207 rdmsr (msr, low, high); 207 rdmsr(msr, low, high);
208 if (high&(1<<31)) { 208 if (high&(1<<31)) {
209 /* Clear it */ 209 /* Clear it */
210 wrmsr(msr, 0UL, 0UL); 210 wrmsr(msr, 0UL, 0UL);
@@ -214,7 +214,7 @@ static void intel_machine_check(struct pt_regs * regs, long error_code)
214 } 214 }
215 } 215 }
216 mcgstl &= ~(1<<2); 216 mcgstl &= ~(1<<2);
217 wrmsr (MSR_IA32_MCG_STATUS,mcgstl, mcgsth); 217 wrmsr(MSR_IA32_MCG_STATUS, mcgstl, mcgsth);
218} 218}
219 219
220 220
@@ -222,30 +222,30 @@ void intel_p4_mcheck_init(struct cpuinfo_x86 *c)
222{ 222{
223 u32 l, h; 223 u32 l, h;
224 int i; 224 int i;
225 225
226 machine_check_vector = intel_machine_check; 226 machine_check_vector = intel_machine_check;
227 wmb(); 227 wmb();
228 228
229 printk (KERN_INFO "Intel machine check architecture supported.\n"); 229 printk(KERN_INFO "Intel machine check architecture supported.\n");
230 rdmsr (MSR_IA32_MCG_CAP, l, h); 230 rdmsr(MSR_IA32_MCG_CAP, l, h);
231 if (l & (1<<8)) /* Control register present ? */ 231 if (l & (1<<8)) /* Control register present ? */
232 wrmsr (MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff); 232 wrmsr(MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
233 nr_mce_banks = l & 0xff; 233 nr_mce_banks = l & 0xff;
234 234
235 for (i=0; i<nr_mce_banks; i++) { 235 for (i = 0; i < nr_mce_banks; i++) {
236 wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff); 236 wrmsr(MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
237 wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0); 237 wrmsr(MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
238 } 238 }
239 239
240 set_in_cr4 (X86_CR4_MCE); 240 set_in_cr4(X86_CR4_MCE);
241 printk (KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n", 241 printk(KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n",
242 smp_processor_id()); 242 smp_processor_id());
243 243
244 /* Check for P4/Xeon extended MCE MSRs */ 244 /* Check for P4/Xeon extended MCE MSRs */
245 rdmsr (MSR_IA32_MCG_CAP, l, h); 245 rdmsr(MSR_IA32_MCG_CAP, l, h);
246 if (l & (1<<9)) {/* MCG_EXT_P */ 246 if (l & (1<<9)) {/* MCG_EXT_P */
247 mce_num_extended_msrs = (l >> 16) & 0xff; 247 mce_num_extended_msrs = (l >> 16) & 0xff;
248 printk (KERN_INFO "CPU%d: Intel P4/Xeon Extended MCE MSRs (%d)" 248 printk(KERN_INFO "CPU%d: Intel P4/Xeon Extended MCE MSRs (%d)"
249 " available\n", 249 " available\n",
250 smp_processor_id(), mce_num_extended_msrs); 250 smp_processor_id(), mce_num_extended_msrs);
251 251
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 5d241ce94a44..509bd3d9eacd 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -37,7 +37,7 @@ static struct fixed_range_block fixed_range_blocks[] = {
37static unsigned long smp_changes_mask; 37static unsigned long smp_changes_mask;
38static struct mtrr_state mtrr_state = {}; 38static struct mtrr_state mtrr_state = {};
39static int mtrr_state_set; 39static int mtrr_state_set;
40static u64 tom2; 40u64 mtrr_tom2;
41 41
42#undef MODULE_PARAM_PREFIX 42#undef MODULE_PARAM_PREFIX
43#define MODULE_PARAM_PREFIX "mtrr." 43#define MODULE_PARAM_PREFIX "mtrr."
@@ -139,8 +139,8 @@ u8 mtrr_type_lookup(u64 start, u64 end)
139 } 139 }
140 } 140 }
141 141
142 if (tom2) { 142 if (mtrr_tom2) {
143 if (start >= (1ULL<<32) && (end < tom2)) 143 if (start >= (1ULL<<32) && (end < mtrr_tom2))
144 return MTRR_TYPE_WRBACK; 144 return MTRR_TYPE_WRBACK;
145 } 145 }
146 146
@@ -158,6 +158,20 @@ get_mtrr_var_range(unsigned int index, struct mtrr_var_range *vr)
158 rdmsr(MTRRphysMask_MSR(index), vr->mask_lo, vr->mask_hi); 158 rdmsr(MTRRphysMask_MSR(index), vr->mask_lo, vr->mask_hi);
159} 159}
160 160
161/* fill the MSR pair relating to a var range */
162void fill_mtrr_var_range(unsigned int index,
163 u32 base_lo, u32 base_hi, u32 mask_lo, u32 mask_hi)
164{
165 struct mtrr_var_range *vr;
166
167 vr = mtrr_state.var_ranges;
168
169 vr[index].base_lo = base_lo;
170 vr[index].base_hi = base_hi;
171 vr[index].mask_lo = mask_lo;
172 vr[index].mask_hi = mask_hi;
173}
174
161static void 175static void
162get_fixed_ranges(mtrr_type * frs) 176get_fixed_ranges(mtrr_type * frs)
163{ 177{
@@ -213,13 +227,13 @@ void __init get_mtrr_state(void)
213 mtrr_state.enabled = (lo & 0xc00) >> 10; 227 mtrr_state.enabled = (lo & 0xc00) >> 10;
214 228
215 if (amd_special_default_mtrr()) { 229 if (amd_special_default_mtrr()) {
216 unsigned lo, hi; 230 unsigned low, high;
217 /* TOP_MEM2 */ 231 /* TOP_MEM2 */
218 rdmsr(MSR_K8_TOP_MEM2, lo, hi); 232 rdmsr(MSR_K8_TOP_MEM2, low, high);
219 tom2 = hi; 233 mtrr_tom2 = high;
220 tom2 <<= 32; 234 mtrr_tom2 <<= 32;
221 tom2 |= lo; 235 mtrr_tom2 |= low;
222 tom2 &= 0xffffff8000000ULL; 236 mtrr_tom2 &= 0xffffff800000ULL;
223 } 237 }
224 if (mtrr_show) { 238 if (mtrr_show) {
225 int high_width; 239 int high_width;
@@ -251,9 +265,9 @@ void __init get_mtrr_state(void)
251 else 265 else
252 printk(KERN_INFO "MTRR %u disabled\n", i); 266 printk(KERN_INFO "MTRR %u disabled\n", i);
253 } 267 }
254 if (tom2) { 268 if (mtrr_tom2) {
255 printk(KERN_INFO "TOM2: %016llx aka %lldM\n", 269 printk(KERN_INFO "TOM2: %016llx aka %lldM\n",
256 tom2, tom2>>20); 270 mtrr_tom2, mtrr_tom2>>20);
257 } 271 }
258 } 272 }
259 mtrr_state_set = 1; 273 mtrr_state_set = 1;
@@ -328,7 +342,7 @@ static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
328 342
329 if (lo != msrwords[0] || hi != msrwords[1]) { 343 if (lo != msrwords[0] || hi != msrwords[1]) {
330 if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD && 344 if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
331 boot_cpu_data.x86 == 15 && 345 (boot_cpu_data.x86 >= 0x0f && boot_cpu_data.x86 <= 0x11) &&
332 ((msrwords[0] | msrwords[1]) & K8_MTRR_RDMEM_WRMEM_MASK)) 346 ((msrwords[0] | msrwords[1]) & K8_MTRR_RDMEM_WRMEM_MASK))
333 k8_enable_fixed_iorrs(); 347 k8_enable_fixed_iorrs();
334 mtrr_wrmsr(msr, msrwords[0], msrwords[1]); 348 mtrr_wrmsr(msr, msrwords[0], msrwords[1]);
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 6a1e278d9323..6f23969c8faf 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -37,6 +37,7 @@
37#include <linux/smp.h> 37#include <linux/smp.h>
38#include <linux/cpu.h> 38#include <linux/cpu.h>
39#include <linux/mutex.h> 39#include <linux/mutex.h>
40#include <linux/sort.h>
40 41
41#include <asm/e820.h> 42#include <asm/e820.h>
42#include <asm/mtrr.h> 43#include <asm/mtrr.h>
@@ -222,7 +223,7 @@ static void set_mtrr(unsigned int reg, unsigned long base,
222 atomic_set(&data.gate,0); 223 atomic_set(&data.gate,0);
223 224
224 /* Start the ball rolling on other CPUs */ 225 /* Start the ball rolling on other CPUs */
225 if (smp_call_function(ipi_handler, &data, 1, 0) != 0) 226 if (smp_call_function(ipi_handler, &data, 0) != 0)
226 panic("mtrr: timed out waiting for other CPUs\n"); 227 panic("mtrr: timed out waiting for other CPUs\n");
227 228
228 local_irq_save(flags); 229 local_irq_save(flags);
@@ -609,6 +610,787 @@ static struct sysdev_driver mtrr_sysdev_driver = {
609 .resume = mtrr_restore, 610 .resume = mtrr_restore,
610}; 611};
611 612
613/* should be related to MTRR_VAR_RANGES nums */
614#define RANGE_NUM 256
615
616struct res_range {
617 unsigned long start;
618 unsigned long end;
619};
620
621static int __init
622add_range(struct res_range *range, int nr_range, unsigned long start,
623 unsigned long end)
624{
625 /* out of slots */
626 if (nr_range >= RANGE_NUM)
627 return nr_range;
628
629 range[nr_range].start = start;
630 range[nr_range].end = end;
631
632 nr_range++;
633
634 return nr_range;
635}
636
637static int __init
638add_range_with_merge(struct res_range *range, int nr_range, unsigned long start,
639 unsigned long end)
640{
641 int i;
642
643 /* try to merge it with old one */
644 for (i = 0; i < nr_range; i++) {
645 unsigned long final_start, final_end;
646 unsigned long common_start, common_end;
647
648 if (!range[i].end)
649 continue;
650
651 common_start = max(range[i].start, start);
652 common_end = min(range[i].end, end);
653 if (common_start > common_end + 1)
654 continue;
655
656 final_start = min(range[i].start, start);
657 final_end = max(range[i].end, end);
658
659 range[i].start = final_start;
660 range[i].end = final_end;
661 return nr_range;
662 }
663
664 /* need to add that */
665 return add_range(range, nr_range, start, end);
666}
667
668static void __init
669subtract_range(struct res_range *range, unsigned long start, unsigned long end)
670{
671 int i, j;
672
673 for (j = 0; j < RANGE_NUM; j++) {
674 if (!range[j].end)
675 continue;
676
677 if (start <= range[j].start && end >= range[j].end) {
678 range[j].start = 0;
679 range[j].end = 0;
680 continue;
681 }
682
683 if (start <= range[j].start && end < range[j].end &&
684 range[j].start < end + 1) {
685 range[j].start = end + 1;
686 continue;
687 }
688
689
690 if (start > range[j].start && end >= range[j].end &&
691 range[j].end > start - 1) {
692 range[j].end = start - 1;
693 continue;
694 }
695
696 if (start > range[j].start && end < range[j].end) {
697 /* find the new spare */
698 for (i = 0; i < RANGE_NUM; i++) {
699 if (range[i].end == 0)
700 break;
701 }
702 if (i < RANGE_NUM) {
703 range[i].end = range[j].end;
704 range[i].start = end + 1;
705 } else {
706 printk(KERN_ERR "run of slot in ranges\n");
707 }
708 range[j].end = start - 1;
709 continue;
710 }
711 }
712}
713
714static int __init cmp_range(const void *x1, const void *x2)
715{
716 const struct res_range *r1 = x1;
717 const struct res_range *r2 = x2;
718 long start1, start2;
719
720 start1 = r1->start;
721 start2 = r2->start;
722
723 return start1 - start2;
724}
725
726struct var_mtrr_range_state {
727 unsigned long base_pfn;
728 unsigned long size_pfn;
729 mtrr_type type;
730};
731
732struct var_mtrr_range_state __initdata range_state[RANGE_NUM];
733static int __initdata debug_print;
734
735static int __init
736x86_get_mtrr_mem_range(struct res_range *range, int nr_range,
737 unsigned long extra_remove_base,
738 unsigned long extra_remove_size)
739{
740 unsigned long i, base, size;
741 mtrr_type type;
742
743 for (i = 0; i < num_var_ranges; i++) {
744 type = range_state[i].type;
745 if (type != MTRR_TYPE_WRBACK)
746 continue;
747 base = range_state[i].base_pfn;
748 size = range_state[i].size_pfn;
749 nr_range = add_range_with_merge(range, nr_range, base,
750 base + size - 1);
751 }
752 if (debug_print) {
753 printk(KERN_DEBUG "After WB checking\n");
754 for (i = 0; i < nr_range; i++)
755 printk(KERN_DEBUG "MTRR MAP PFN: %016lx - %016lx\n",
756 range[i].start, range[i].end + 1);
757 }
758
759 /* take out UC ranges */
760 for (i = 0; i < num_var_ranges; i++) {
761 type = range_state[i].type;
762 if (type != MTRR_TYPE_UNCACHABLE)
763 continue;
764 size = range_state[i].size_pfn;
765 if (!size)
766 continue;
767 base = range_state[i].base_pfn;
768 subtract_range(range, base, base + size - 1);
769 }
770 if (extra_remove_size)
771 subtract_range(range, extra_remove_base,
772 extra_remove_base + extra_remove_size - 1);
773
774 /* get new range num */
775 nr_range = 0;
776 for (i = 0; i < RANGE_NUM; i++) {
777 if (!range[i].end)
778 continue;
779 nr_range++;
780 }
781 if (debug_print) {
782 printk(KERN_DEBUG "After UC checking\n");
783 for (i = 0; i < nr_range; i++)
784 printk(KERN_DEBUG "MTRR MAP PFN: %016lx - %016lx\n",
785 range[i].start, range[i].end + 1);
786 }
787
788 /* sort the ranges */
789 sort(range, nr_range, sizeof(struct res_range), cmp_range, NULL);
790 if (debug_print) {
791 printk(KERN_DEBUG "After sorting\n");
792 for (i = 0; i < nr_range; i++)
793 printk(KERN_DEBUG "MTRR MAP PFN: %016lx - %016lx\n",
794 range[i].start, range[i].end + 1);
795 }
796
797 /* clear those is not used */
798 for (i = nr_range; i < RANGE_NUM; i++)
799 memset(&range[i], 0, sizeof(range[i]));
800
801 return nr_range;
802}
803
804static struct res_range __initdata range[RANGE_NUM];
805
806#ifdef CONFIG_MTRR_SANITIZER
807
808static unsigned long __init sum_ranges(struct res_range *range, int nr_range)
809{
810 unsigned long sum;
811 int i;
812
813 sum = 0;
814 for (i = 0; i < nr_range; i++)
815 sum += range[i].end + 1 - range[i].start;
816
817 return sum;
818}
819
820static int enable_mtrr_cleanup __initdata =
821 CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT;
822
823static int __init disable_mtrr_cleanup_setup(char *str)
824{
825 if (enable_mtrr_cleanup != -1)
826 enable_mtrr_cleanup = 0;
827 return 0;
828}
829early_param("disable_mtrr_cleanup", disable_mtrr_cleanup_setup);
830
831static int __init enable_mtrr_cleanup_setup(char *str)
832{
833 if (enable_mtrr_cleanup != -1)
834 enable_mtrr_cleanup = 1;
835 return 0;
836}
837early_param("enble_mtrr_cleanup", enable_mtrr_cleanup_setup);
838
839struct var_mtrr_state {
840 unsigned long range_startk;
841 unsigned long range_sizek;
842 unsigned long chunk_sizek;
843 unsigned long gran_sizek;
844 unsigned int reg;
845};
846
847static void __init
848set_var_mtrr(unsigned int reg, unsigned long basek, unsigned long sizek,
849 unsigned char type, unsigned int address_bits)
850{
851 u32 base_lo, base_hi, mask_lo, mask_hi;
852 u64 base, mask;
853
854 if (!sizek) {
855 fill_mtrr_var_range(reg, 0, 0, 0, 0);
856 return;
857 }
858
859 mask = (1ULL << address_bits) - 1;
860 mask &= ~((((u64)sizek) << 10) - 1);
861
862 base = ((u64)basek) << 10;
863
864 base |= type;
865 mask |= 0x800;
866
867 base_lo = base & ((1ULL<<32) - 1);
868 base_hi = base >> 32;
869
870 mask_lo = mask & ((1ULL<<32) - 1);
871 mask_hi = mask >> 32;
872
873 fill_mtrr_var_range(reg, base_lo, base_hi, mask_lo, mask_hi);
874}
875
876static void __init
877save_var_mtrr(unsigned int reg, unsigned long basek, unsigned long sizek,
878 unsigned char type)
879{
880 range_state[reg].base_pfn = basek >> (PAGE_SHIFT - 10);
881 range_state[reg].size_pfn = sizek >> (PAGE_SHIFT - 10);
882 range_state[reg].type = type;
883}
884
885static void __init
886set_var_mtrr_all(unsigned int address_bits)
887{
888 unsigned long basek, sizek;
889 unsigned char type;
890 unsigned int reg;
891
892 for (reg = 0; reg < num_var_ranges; reg++) {
893 basek = range_state[reg].base_pfn << (PAGE_SHIFT - 10);
894 sizek = range_state[reg].size_pfn << (PAGE_SHIFT - 10);
895 type = range_state[reg].type;
896
897 set_var_mtrr(reg, basek, sizek, type, address_bits);
898 }
899}
900
901static unsigned int __init
902range_to_mtrr(unsigned int reg, unsigned long range_startk,
903 unsigned long range_sizek, unsigned char type)
904{
905 if (!range_sizek || (reg >= num_var_ranges))
906 return reg;
907
908 while (range_sizek) {
909 unsigned long max_align, align;
910 unsigned long sizek;
911
912 /* Compute the maximum size I can make a range */
913 if (range_startk)
914 max_align = ffs(range_startk) - 1;
915 else
916 max_align = 32;
917 align = fls(range_sizek) - 1;
918 if (align > max_align)
919 align = max_align;
920
921 sizek = 1 << align;
922 if (debug_print)
923 printk(KERN_DEBUG "Setting variable MTRR %d, "
924 "base: %ldMB, range: %ldMB, type %s\n",
925 reg, range_startk >> 10, sizek >> 10,
926 (type == MTRR_TYPE_UNCACHABLE)?"UC":
927 ((type == MTRR_TYPE_WRBACK)?"WB":"Other")
928 );
929 save_var_mtrr(reg++, range_startk, sizek, type);
930 range_startk += sizek;
931 range_sizek -= sizek;
932 if (reg >= num_var_ranges)
933 break;
934 }
935 return reg;
936}
937
938static unsigned __init
939range_to_mtrr_with_hole(struct var_mtrr_state *state, unsigned long basek,
940 unsigned long sizek)
941{
942 unsigned long hole_basek, hole_sizek;
943 unsigned long second_basek, second_sizek;
944 unsigned long range0_basek, range0_sizek;
945 unsigned long range_basek, range_sizek;
946 unsigned long chunk_sizek;
947 unsigned long gran_sizek;
948
949 hole_basek = 0;
950 hole_sizek = 0;
951 second_basek = 0;
952 second_sizek = 0;
953 chunk_sizek = state->chunk_sizek;
954 gran_sizek = state->gran_sizek;
955
956 /* align with gran size, prevent small block used up MTRRs */
957 range_basek = ALIGN(state->range_startk, gran_sizek);
958 if ((range_basek > basek) && basek)
959 return second_sizek;
960 state->range_sizek -= (range_basek - state->range_startk);
961 range_sizek = ALIGN(state->range_sizek, gran_sizek);
962
963 while (range_sizek > state->range_sizek) {
964 range_sizek -= gran_sizek;
965 if (!range_sizek)
966 return 0;
967 }
968 state->range_sizek = range_sizek;
969
970 /* try to append some small hole */
971 range0_basek = state->range_startk;
972 range0_sizek = ALIGN(state->range_sizek, chunk_sizek);
973 if (range0_sizek == state->range_sizek) {
974 if (debug_print)
975 printk(KERN_DEBUG "rangeX: %016lx - %016lx\n",
976 range0_basek<<10,
977 (range0_basek + state->range_sizek)<<10);
978 state->reg = range_to_mtrr(state->reg, range0_basek,
979 state->range_sizek, MTRR_TYPE_WRBACK);
980 return 0;
981 }
982
983 range0_sizek -= chunk_sizek;
984 if (range0_sizek && sizek) {
985 while (range0_basek + range0_sizek > (basek + sizek)) {
986 range0_sizek -= chunk_sizek;
987 if (!range0_sizek)
988 break;
989 }
990 }
991
992 if (range0_sizek) {
993 if (debug_print)
994 printk(KERN_DEBUG "range0: %016lx - %016lx\n",
995 range0_basek<<10,
996 (range0_basek + range0_sizek)<<10);
997 state->reg = range_to_mtrr(state->reg, range0_basek,
998 range0_sizek, MTRR_TYPE_WRBACK);
999
1000 }
1001
1002 range_basek = range0_basek + range0_sizek;
1003 range_sizek = chunk_sizek;
1004
1005 if (range_basek + range_sizek > basek &&
1006 range_basek + range_sizek <= (basek + sizek)) {
1007 /* one hole */
1008 second_basek = basek;
1009 second_sizek = range_basek + range_sizek - basek;
1010 }
1011
1012 /* if last piece, only could one hole near end */
1013 if ((second_basek || !basek) &&
1014 range_sizek - (state->range_sizek - range0_sizek) - second_sizek <
1015 (chunk_sizek >> 1)) {
1016 /*
1017 * one hole in middle (second_sizek is 0) or at end
1018 * (second_sizek is 0 )
1019 */
1020 hole_sizek = range_sizek - (state->range_sizek - range0_sizek)
1021 - second_sizek;
1022 hole_basek = range_basek + range_sizek - hole_sizek
1023 - second_sizek;
1024 } else {
1025 /* fallback for big hole, or several holes */
1026 range_sizek = state->range_sizek - range0_sizek;
1027 second_basek = 0;
1028 second_sizek = 0;
1029 }
1030
1031 if (debug_print)
1032 printk(KERN_DEBUG "range: %016lx - %016lx\n", range_basek<<10,
1033 (range_basek + range_sizek)<<10);
1034 state->reg = range_to_mtrr(state->reg, range_basek, range_sizek,
1035 MTRR_TYPE_WRBACK);
1036 if (hole_sizek) {
1037 if (debug_print)
1038 printk(KERN_DEBUG "hole: %016lx - %016lx\n",
1039 hole_basek<<10, (hole_basek + hole_sizek)<<10);
1040 state->reg = range_to_mtrr(state->reg, hole_basek, hole_sizek,
1041 MTRR_TYPE_UNCACHABLE);
1042
1043 }
1044
1045 return second_sizek;
1046}
1047
1048static void __init
1049set_var_mtrr_range(struct var_mtrr_state *state, unsigned long base_pfn,
1050 unsigned long size_pfn)
1051{
1052 unsigned long basek, sizek;
1053 unsigned long second_sizek = 0;
1054
1055 if (state->reg >= num_var_ranges)
1056 return;
1057
1058 basek = base_pfn << (PAGE_SHIFT - 10);
1059 sizek = size_pfn << (PAGE_SHIFT - 10);
1060
1061 /* See if I can merge with the last range */
1062 if ((basek <= 1024) ||
1063 (state->range_startk + state->range_sizek == basek)) {
1064 unsigned long endk = basek + sizek;
1065 state->range_sizek = endk - state->range_startk;
1066 return;
1067 }
1068 /* Write the range mtrrs */
1069 if (state->range_sizek != 0)
1070 second_sizek = range_to_mtrr_with_hole(state, basek, sizek);
1071
1072 /* Allocate an msr */
1073 state->range_startk = basek + second_sizek;
1074 state->range_sizek = sizek - second_sizek;
1075}
1076
1077/* mininum size of mtrr block that can take hole */
1078static u64 mtrr_chunk_size __initdata = (256ULL<<20);
1079
1080static int __init parse_mtrr_chunk_size_opt(char *p)
1081{
1082 if (!p)
1083 return -EINVAL;
1084 mtrr_chunk_size = memparse(p, &p);
1085 return 0;
1086}
1087early_param("mtrr_chunk_size", parse_mtrr_chunk_size_opt);
1088
1089/* granity of mtrr of block */
1090static u64 mtrr_gran_size __initdata;
1091
1092static int __init parse_mtrr_gran_size_opt(char *p)
1093{
1094 if (!p)
1095 return -EINVAL;
1096 mtrr_gran_size = memparse(p, &p);
1097 return 0;
1098}
1099early_param("mtrr_gran_size", parse_mtrr_gran_size_opt);
1100
1101static int nr_mtrr_spare_reg __initdata =
1102 CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT;
1103
1104static int __init parse_mtrr_spare_reg(char *arg)
1105{
1106 if (arg)
1107 nr_mtrr_spare_reg = simple_strtoul(arg, NULL, 0);
1108 return 0;
1109}
1110
1111early_param("mtrr_spare_reg_nr", parse_mtrr_spare_reg);
1112
1113static int __init
1114x86_setup_var_mtrrs(struct res_range *range, int nr_range,
1115 u64 chunk_size, u64 gran_size)
1116{
1117 struct var_mtrr_state var_state;
1118 int i;
1119 int num_reg;
1120
1121 var_state.range_startk = 0;
1122 var_state.range_sizek = 0;
1123 var_state.reg = 0;
1124 var_state.chunk_sizek = chunk_size >> 10;
1125 var_state.gran_sizek = gran_size >> 10;
1126
1127 memset(range_state, 0, sizeof(range_state));
1128
1129 /* Write the range etc */
1130 for (i = 0; i < nr_range; i++)
1131 set_var_mtrr_range(&var_state, range[i].start,
1132 range[i].end - range[i].start + 1);
1133
1134 /* Write the last range */
1135 if (var_state.range_sizek != 0)
1136 range_to_mtrr_with_hole(&var_state, 0, 0);
1137
1138 num_reg = var_state.reg;
1139 /* Clear out the extra MTRR's */
1140 while (var_state.reg < num_var_ranges) {
1141 save_var_mtrr(var_state.reg, 0, 0, 0);
1142 var_state.reg++;
1143 }
1144
1145 return num_reg;
1146}
1147
1148struct mtrr_cleanup_result {
1149 unsigned long gran_sizek;
1150 unsigned long chunk_sizek;
1151 unsigned long lose_cover_sizek;
1152 unsigned int num_reg;
1153 int bad;
1154};
1155
1156/*
1157 * gran_size: 1M, 2M, ..., 2G
1158 * chunk size: gran_size, ..., 4G
1159 * so we need (2+13)*6
1160 */
1161#define NUM_RESULT 90
1162#define PSHIFT (PAGE_SHIFT - 10)
1163
1164static struct mtrr_cleanup_result __initdata result[NUM_RESULT];
1165static struct res_range __initdata range_new[RANGE_NUM];
1166static unsigned long __initdata min_loss_pfn[RANGE_NUM];
1167
1168static int __init mtrr_cleanup(unsigned address_bits)
1169{
1170 unsigned long extra_remove_base, extra_remove_size;
1171 unsigned long i, base, size, def, dummy;
1172 mtrr_type type;
1173 int nr_range, nr_range_new;
1174 u64 chunk_size, gran_size;
1175 unsigned long range_sums, range_sums_new;
1176 int index_good;
1177 int num_reg_good;
1178
1179 /* extra one for all 0 */
1180 int num[MTRR_NUM_TYPES + 1];
1181
1182 if (!is_cpu(INTEL) || enable_mtrr_cleanup < 1)
1183 return 0;
1184 rdmsr(MTRRdefType_MSR, def, dummy);
1185 def &= 0xff;
1186 if (def != MTRR_TYPE_UNCACHABLE)
1187 return 0;
1188
1189 /* get it and store it aside */
1190 memset(range_state, 0, sizeof(range_state));
1191 for (i = 0; i < num_var_ranges; i++) {
1192 mtrr_if->get(i, &base, &size, &type);
1193 range_state[i].base_pfn = base;
1194 range_state[i].size_pfn = size;
1195 range_state[i].type = type;
1196 }
1197
1198 /* check entries number */
1199 memset(num, 0, sizeof(num));
1200 for (i = 0; i < num_var_ranges; i++) {
1201 type = range_state[i].type;
1202 size = range_state[i].size_pfn;
1203 if (type >= MTRR_NUM_TYPES)
1204 continue;
1205 if (!size)
1206 type = MTRR_NUM_TYPES;
1207 num[type]++;
1208 }
1209
1210 /* check if we got UC entries */
1211 if (!num[MTRR_TYPE_UNCACHABLE])
1212 return 0;
1213
1214 /* check if we only had WB and UC */
1215 if (num[MTRR_TYPE_WRBACK] + num[MTRR_TYPE_UNCACHABLE] !=
1216 num_var_ranges - num[MTRR_NUM_TYPES])
1217 return 0;
1218
1219 memset(range, 0, sizeof(range));
1220 extra_remove_size = 0;
1221 if (mtrr_tom2) {
1222 extra_remove_base = 1 << (32 - PAGE_SHIFT);
1223 extra_remove_size =
1224 (mtrr_tom2 >> PAGE_SHIFT) - extra_remove_base;
1225 }
1226 nr_range = x86_get_mtrr_mem_range(range, 0, extra_remove_base,
1227 extra_remove_size);
1228 range_sums = sum_ranges(range, nr_range);
1229 printk(KERN_INFO "total RAM coverred: %ldM\n",
1230 range_sums >> (20 - PAGE_SHIFT));
1231
1232 if (mtrr_chunk_size && mtrr_gran_size) {
1233 int num_reg;
1234
1235 debug_print = 1;
1236 /* convert ranges to var ranges state */
1237 num_reg = x86_setup_var_mtrrs(range, nr_range, mtrr_chunk_size,
1238 mtrr_gran_size);
1239
1240 /* we got new setting in range_state, check it */
1241 memset(range_new, 0, sizeof(range_new));
1242 nr_range_new = x86_get_mtrr_mem_range(range_new, 0,
1243 extra_remove_base,
1244 extra_remove_size);
1245 range_sums_new = sum_ranges(range_new, nr_range_new);
1246
1247 i = 0;
1248 result[i].chunk_sizek = mtrr_chunk_size >> 10;
1249 result[i].gran_sizek = mtrr_gran_size >> 10;
1250 result[i].num_reg = num_reg;
1251 if (range_sums < range_sums_new) {
1252 result[i].lose_cover_sizek =
1253 (range_sums_new - range_sums) << PSHIFT;
1254 result[i].bad = 1;
1255 } else
1256 result[i].lose_cover_sizek =
1257 (range_sums - range_sums_new) << PSHIFT;
1258
1259 printk(KERN_INFO "%sgran_size: %ldM \tchunk_size: %ldM \t",
1260 result[i].bad?"*BAD*":" ", result[i].gran_sizek >> 10,
1261 result[i].chunk_sizek >> 10);
1262 printk(KERN_CONT "num_reg: %d \tlose cover RAM: %s%ldM \n",
1263 result[i].num_reg, result[i].bad?"-":"",
1264 result[i].lose_cover_sizek >> 10);
1265 if (!result[i].bad) {
1266 set_var_mtrr_all(address_bits);
1267 return 1;
1268 }
1269 printk(KERN_INFO "invalid mtrr_gran_size or mtrr_chunk_size, "
1270 "will find optimal one\n");
1271 debug_print = 0;
1272 memset(result, 0, sizeof(result[0]));
1273 }
1274
1275 i = 0;
1276 memset(min_loss_pfn, 0xff, sizeof(min_loss_pfn));
1277 memset(result, 0, sizeof(result));
1278 for (gran_size = (1ULL<<20); gran_size < (1ULL<<32); gran_size <<= 1) {
1279 for (chunk_size = gran_size; chunk_size < (1ULL<<33);
1280 chunk_size <<= 1) {
1281 int num_reg;
1282
1283 if (debug_print)
1284 printk(KERN_INFO
1285 "\ngran_size: %lldM chunk_size_size: %lldM\n",
1286 gran_size >> 20, chunk_size >> 20);
1287 if (i >= NUM_RESULT)
1288 continue;
1289
1290 /* convert ranges to var ranges state */
1291 num_reg = x86_setup_var_mtrrs(range, nr_range,
1292 chunk_size, gran_size);
1293
1294 /* we got new setting in range_state, check it */
1295 memset(range_new, 0, sizeof(range_new));
1296 nr_range_new = x86_get_mtrr_mem_range(range_new, 0,
1297 extra_remove_base, extra_remove_size);
1298 range_sums_new = sum_ranges(range_new, nr_range_new);
1299
1300 result[i].chunk_sizek = chunk_size >> 10;
1301 result[i].gran_sizek = gran_size >> 10;
1302 result[i].num_reg = num_reg;
1303 if (range_sums < range_sums_new) {
1304 result[i].lose_cover_sizek =
1305 (range_sums_new - range_sums) << PSHIFT;
1306 result[i].bad = 1;
1307 } else
1308 result[i].lose_cover_sizek =
1309 (range_sums - range_sums_new) << PSHIFT;
1310
1311 /* double check it */
1312 if (!result[i].bad && !result[i].lose_cover_sizek) {
1313 if (nr_range_new != nr_range ||
1314 memcmp(range, range_new, sizeof(range)))
1315 result[i].bad = 1;
1316 }
1317
1318 if (!result[i].bad && (range_sums - range_sums_new <
1319 min_loss_pfn[num_reg])) {
1320 min_loss_pfn[num_reg] =
1321 range_sums - range_sums_new;
1322 }
1323 i++;
1324 }
1325 }
1326
1327 /* print out all */
1328 for (i = 0; i < NUM_RESULT; i++) {
1329 printk(KERN_INFO "%sgran_size: %ldM \tchunk_size: %ldM \t",
1330 result[i].bad?"*BAD* ":" ", result[i].gran_sizek >> 10,
1331 result[i].chunk_sizek >> 10);
1332 printk(KERN_CONT "num_reg: %d \tlose RAM: %s%ldM\n",
1333 result[i].num_reg, result[i].bad?"-":"",
1334 result[i].lose_cover_sizek >> 10);
1335 }
1336
1337 /* try to find the optimal index */
1338 if (nr_mtrr_spare_reg >= num_var_ranges)
1339 nr_mtrr_spare_reg = num_var_ranges - 1;
1340 num_reg_good = -1;
1341 for (i = num_var_ranges - nr_mtrr_spare_reg; i > 0; i--) {
1342 if (!min_loss_pfn[i]) {
1343 num_reg_good = i;
1344 break;
1345 }
1346 }
1347
1348 index_good = -1;
1349 if (num_reg_good != -1) {
1350 for (i = 0; i < NUM_RESULT; i++) {
1351 if (!result[i].bad &&
1352 result[i].num_reg == num_reg_good &&
1353 !result[i].lose_cover_sizek) {
1354 index_good = i;
1355 break;
1356 }
1357 }
1358 }
1359
1360 if (index_good != -1) {
1361 printk(KERN_INFO "Found optimal setting for mtrr clean up\n");
1362 i = index_good;
1363 printk(KERN_INFO "gran_size: %ldM \tchunk_size: %ldM \t",
1364 result[i].gran_sizek >> 10,
1365 result[i].chunk_sizek >> 10);
1366 printk(KERN_CONT "num_reg: %d \tlose RAM: %ldM\n",
1367 result[i].num_reg,
1368 result[i].lose_cover_sizek >> 10);
1369 /* convert ranges to var ranges state */
1370 chunk_size = result[i].chunk_sizek;
1371 chunk_size <<= 10;
1372 gran_size = result[i].gran_sizek;
1373 gran_size <<= 10;
1374 debug_print = 1;
1375 x86_setup_var_mtrrs(range, nr_range, chunk_size, gran_size);
1376 set_var_mtrr_all(address_bits);
1377 return 1;
1378 }
1379
1380 printk(KERN_INFO "mtrr_cleanup: can not find optimal value\n");
1381 printk(KERN_INFO "please specify mtrr_gran_size/mtrr_chunk_size\n");
1382
1383 return 0;
1384}
1385#else
1386static int __init mtrr_cleanup(unsigned address_bits)
1387{
1388 return 0;
1389}
1390#endif
1391
1392static int __initdata changed_by_mtrr_cleanup;
1393
612static int disable_mtrr_trim; 1394static int disable_mtrr_trim;
613 1395
614static int __init disable_mtrr_trim_setup(char *str) 1396static int __init disable_mtrr_trim_setup(char *str)
@@ -648,6 +1430,19 @@ int __init amd_special_default_mtrr(void)
648 return 0; 1430 return 0;
649} 1431}
650 1432
1433static u64 __init real_trim_memory(unsigned long start_pfn,
1434 unsigned long limit_pfn)
1435{
1436 u64 trim_start, trim_size;
1437 trim_start = start_pfn;
1438 trim_start <<= PAGE_SHIFT;
1439 trim_size = limit_pfn;
1440 trim_size <<= PAGE_SHIFT;
1441 trim_size -= trim_start;
1442
1443 return e820_update_range(trim_start, trim_size, E820_RAM,
1444 E820_RESERVED);
1445}
651/** 1446/**
652 * mtrr_trim_uncached_memory - trim RAM not covered by MTRRs 1447 * mtrr_trim_uncached_memory - trim RAM not covered by MTRRs
653 * @end_pfn: ending page frame number 1448 * @end_pfn: ending page frame number
@@ -663,8 +1458,11 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
663{ 1458{
664 unsigned long i, base, size, highest_pfn = 0, def, dummy; 1459 unsigned long i, base, size, highest_pfn = 0, def, dummy;
665 mtrr_type type; 1460 mtrr_type type;
666 u64 trim_start, trim_size; 1461 int nr_range;
1462 u64 total_trim_size;
667 1463
1464 /* extra one for all 0 */
1465 int num[MTRR_NUM_TYPES + 1];
668 /* 1466 /*
669 * Make sure we only trim uncachable memory on machines that 1467 * Make sure we only trim uncachable memory on machines that
670 * support the Intel MTRR architecture: 1468 * support the Intel MTRR architecture:
@@ -676,14 +1474,22 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
676 if (def != MTRR_TYPE_UNCACHABLE) 1474 if (def != MTRR_TYPE_UNCACHABLE)
677 return 0; 1475 return 0;
678 1476
679 if (amd_special_default_mtrr()) 1477 /* get it and store it aside */
680 return 0; 1478 memset(range_state, 0, sizeof(range_state));
1479 for (i = 0; i < num_var_ranges; i++) {
1480 mtrr_if->get(i, &base, &size, &type);
1481 range_state[i].base_pfn = base;
1482 range_state[i].size_pfn = size;
1483 range_state[i].type = type;
1484 }
681 1485
682 /* Find highest cached pfn */ 1486 /* Find highest cached pfn */
683 for (i = 0; i < num_var_ranges; i++) { 1487 for (i = 0; i < num_var_ranges; i++) {
684 mtrr_if->get(i, &base, &size, &type); 1488 type = range_state[i].type;
685 if (type != MTRR_TYPE_WRBACK) 1489 if (type != MTRR_TYPE_WRBACK)
686 continue; 1490 continue;
1491 base = range_state[i].base_pfn;
1492 size = range_state[i].size_pfn;
687 if (highest_pfn < base + size) 1493 if (highest_pfn < base + size)
688 highest_pfn = base + size; 1494 highest_pfn = base + size;
689 } 1495 }
@@ -698,22 +1504,65 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
698 return 0; 1504 return 0;
699 } 1505 }
700 1506
701 if (highest_pfn < end_pfn) { 1507 /* check entries number */
1508 memset(num, 0, sizeof(num));
1509 for (i = 0; i < num_var_ranges; i++) {
1510 type = range_state[i].type;
1511 if (type >= MTRR_NUM_TYPES)
1512 continue;
1513 size = range_state[i].size_pfn;
1514 if (!size)
1515 type = MTRR_NUM_TYPES;
1516 num[type]++;
1517 }
1518
1519 /* no entry for WB? */
1520 if (!num[MTRR_TYPE_WRBACK])
1521 return 0;
1522
1523 /* check if we only had WB and UC */
1524 if (num[MTRR_TYPE_WRBACK] + num[MTRR_TYPE_UNCACHABLE] !=
1525 num_var_ranges - num[MTRR_NUM_TYPES])
1526 return 0;
1527
1528 memset(range, 0, sizeof(range));
1529 nr_range = 0;
1530 if (mtrr_tom2) {
1531 range[nr_range].start = (1ULL<<(32 - PAGE_SHIFT));
1532 range[nr_range].end = (mtrr_tom2 >> PAGE_SHIFT) - 1;
1533 if (highest_pfn < range[nr_range].end + 1)
1534 highest_pfn = range[nr_range].end + 1;
1535 nr_range++;
1536 }
1537 nr_range = x86_get_mtrr_mem_range(range, nr_range, 0, 0);
1538
1539 total_trim_size = 0;
1540 /* check the head */
1541 if (range[0].start)
1542 total_trim_size += real_trim_memory(0, range[0].start);
1543 /* check the holes */
1544 for (i = 0; i < nr_range - 1; i++) {
1545 if (range[i].end + 1 < range[i+1].start)
1546 total_trim_size += real_trim_memory(range[i].end + 1,
1547 range[i+1].start);
1548 }
1549 /* check the top */
1550 i = nr_range - 1;
1551 if (range[i].end + 1 < end_pfn)
1552 total_trim_size += real_trim_memory(range[i].end + 1,
1553 end_pfn);
1554
1555 if (total_trim_size) {
702 printk(KERN_WARNING "WARNING: BIOS bug: CPU MTRRs don't cover" 1556 printk(KERN_WARNING "WARNING: BIOS bug: CPU MTRRs don't cover"
703 " all of memory, losing %luMB of RAM.\n", 1557 " all of memory, losing %lluMB of RAM.\n",
704 (end_pfn - highest_pfn) >> (20 - PAGE_SHIFT)); 1558 total_trim_size >> 20);
705 1559
706 WARN_ON(1); 1560 if (!changed_by_mtrr_cleanup)
1561 WARN_ON(1);
707 1562
708 printk(KERN_INFO "update e820 for mtrr\n"); 1563 printk(KERN_INFO "update e820 for mtrr\n");
709 trim_start = highest_pfn;
710 trim_start <<= PAGE_SHIFT;
711 trim_size = end_pfn;
712 trim_size <<= PAGE_SHIFT;
713 trim_size -= trim_start;
714 update_memory_range(trim_start, trim_size, E820_RAM,
715 E820_RESERVED);
716 update_e820(); 1564 update_e820();
1565
717 return 1; 1566 return 1;
718 } 1567 }
719 1568
@@ -729,18 +1578,21 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
729 */ 1578 */
730void __init mtrr_bp_init(void) 1579void __init mtrr_bp_init(void)
731{ 1580{
1581 u32 phys_addr;
732 init_ifs(); 1582 init_ifs();
733 1583
1584 phys_addr = 32;
1585
734 if (cpu_has_mtrr) { 1586 if (cpu_has_mtrr) {
735 mtrr_if = &generic_mtrr_ops; 1587 mtrr_if = &generic_mtrr_ops;
736 size_or_mask = 0xff000000; /* 36 bits */ 1588 size_or_mask = 0xff000000; /* 36 bits */
737 size_and_mask = 0x00f00000; 1589 size_and_mask = 0x00f00000;
1590 phys_addr = 36;
738 1591
739 /* This is an AMD specific MSR, but we assume(hope?) that 1592 /* This is an AMD specific MSR, but we assume(hope?) that
740 Intel will implement it to when they extend the address 1593 Intel will implement it to when they extend the address
741 bus of the Xeon. */ 1594 bus of the Xeon. */
742 if (cpuid_eax(0x80000000) >= 0x80000008) { 1595 if (cpuid_eax(0x80000000) >= 0x80000008) {
743 u32 phys_addr;
744 phys_addr = cpuid_eax(0x80000008) & 0xff; 1596 phys_addr = cpuid_eax(0x80000008) & 0xff;
745 /* CPUID workaround for Intel 0F33/0F34 CPU */ 1597 /* CPUID workaround for Intel 0F33/0F34 CPU */
746 if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && 1598 if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
@@ -758,6 +1610,7 @@ void __init mtrr_bp_init(void)
758 don't support PAE */ 1610 don't support PAE */
759 size_or_mask = 0xfff00000; /* 32 bits */ 1611 size_or_mask = 0xfff00000; /* 32 bits */
760 size_and_mask = 0; 1612 size_and_mask = 0;
1613 phys_addr = 32;
761 } 1614 }
762 } else { 1615 } else {
763 switch (boot_cpu_data.x86_vendor) { 1616 switch (boot_cpu_data.x86_vendor) {
@@ -791,8 +1644,15 @@ void __init mtrr_bp_init(void)
791 if (mtrr_if) { 1644 if (mtrr_if) {
792 set_num_var_ranges(); 1645 set_num_var_ranges();
793 init_table(); 1646 init_table();
794 if (use_intel()) 1647 if (use_intel()) {
795 get_mtrr_state(); 1648 get_mtrr_state();
1649
1650 if (mtrr_cleanup(phys_addr)) {
1651 changed_by_mtrr_cleanup = 1;
1652 mtrr_if->set_all();
1653 }
1654
1655 }
796 } 1656 }
797} 1657}
798 1658
@@ -822,16 +1682,17 @@ void mtrr_ap_init(void)
822 */ 1682 */
823void mtrr_save_state(void) 1683void mtrr_save_state(void)
824{ 1684{
825 smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1, 1); 1685 smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1);
826} 1686}
827 1687
828static int __init mtrr_init_finialize(void) 1688static int __init mtrr_init_finialize(void)
829{ 1689{
830 if (!mtrr_if) 1690 if (!mtrr_if)
831 return 0; 1691 return 0;
832 if (use_intel()) 1692 if (use_intel()) {
833 mtrr_state_warn(); 1693 if (!changed_by_mtrr_cleanup)
834 else { 1694 mtrr_state_warn();
1695 } else {
835 /* The CPUs haven't MTRR and seem to not support SMP. They have 1696 /* The CPUs haven't MTRR and seem to not support SMP. They have
836 * specific drivers, we use a tricky method to support 1697 * specific drivers, we use a tricky method to support
837 * suspend/resume for them. 1698 * suspend/resume for them.
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index 2cc77eb6fea3..2dc4ec656b23 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -81,6 +81,8 @@ void set_mtrr_done(struct set_mtrr_context *ctxt);
81void set_mtrr_cache_disable(struct set_mtrr_context *ctxt); 81void set_mtrr_cache_disable(struct set_mtrr_context *ctxt);
82void set_mtrr_prepare_save(struct set_mtrr_context *ctxt); 82void set_mtrr_prepare_save(struct set_mtrr_context *ctxt);
83 83
84void fill_mtrr_var_range(unsigned int index,
85 u32 base_lo, u32 base_hi, u32 mask_lo, u32 mask_hi);
84void get_mtrr_state(void); 86void get_mtrr_state(void);
85 87
86extern void set_mtrr_ops(struct mtrr_ops * ops); 88extern void set_mtrr_ops(struct mtrr_ops * ops);
@@ -92,6 +94,7 @@ extern struct mtrr_ops * mtrr_if;
92#define use_intel() (mtrr_if && mtrr_if->use_intel_if == 1) 94#define use_intel() (mtrr_if && mtrr_if->use_intel_if == 1)
93 95
94extern unsigned int num_var_ranges; 96extern unsigned int num_var_ranges;
97extern u64 mtrr_tom2;
95 98
96void mtrr_state_warn(void); 99void mtrr_state_warn(void);
97const char *mtrr_attrib_to_str(int x); 100const char *mtrr_attrib_to_str(int x);
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index f9ae93adffe5..6d4bdc02388a 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -1,11 +1,15 @@
1/* local apic based NMI watchdog for various CPUs. 1/*
2 This file also handles reservation of performance counters for coordination 2 * local apic based NMI watchdog for various CPUs.
3 with other users (like oprofile). 3 *
4 4 * This file also handles reservation of performance counters for coordination
5 Note that these events normally don't tick when the CPU idles. This means 5 * with other users (like oprofile).
6 the frequency varies with CPU load. 6 *
7 7 * Note that these events normally don't tick when the CPU idles. This means
8 Original code for K7/P6 written by Keith Owens */ 8 * the frequency varies with CPU load.
9 *
10 * Original code for K7/P6 written by Keith Owens
11 *
12 */
9 13
10#include <linux/percpu.h> 14#include <linux/percpu.h>
11#include <linux/module.h> 15#include <linux/module.h>
@@ -36,12 +40,16 @@ struct wd_ops {
36 40
37static const struct wd_ops *wd_ops; 41static const struct wd_ops *wd_ops;
38 42
39/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's 43/*
40 * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) 44 * this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's
45 * offset from MSR_P4_BSU_ESCR0.
46 *
47 * It will be the max for all platforms (for now)
41 */ 48 */
42#define NMI_MAX_COUNTER_BITS 66 49#define NMI_MAX_COUNTER_BITS 66
43 50
44/* perfctr_nmi_owner tracks the ownership of the perfctr registers: 51/*
52 * perfctr_nmi_owner tracks the ownership of the perfctr registers:
45 * evtsel_nmi_owner tracks the ownership of the event selection 53 * evtsel_nmi_owner tracks the ownership of the event selection
46 * - different performance counters/ event selection may be reserved for 54 * - different performance counters/ event selection may be reserved for
47 * different subsystems this reservation system just tries to coordinate 55 * different subsystems this reservation system just tries to coordinate
@@ -73,8 +81,10 @@ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr)
73 return 0; 81 return 0;
74} 82}
75 83
76/* converts an msr to an appropriate reservation bit */ 84/*
77/* returns the bit offset of the event selection register */ 85 * converts an msr to an appropriate reservation bit
86 * returns the bit offset of the event selection register
87 */
78static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) 88static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr)
79{ 89{
80 /* returns the bit offset of the event selection register */ 90 /* returns the bit offset of the event selection register */
@@ -114,6 +124,7 @@ int avail_to_resrv_perfctr_nmi(unsigned int msr)
114 124
115 return (!test_bit(counter, perfctr_nmi_owner)); 125 return (!test_bit(counter, perfctr_nmi_owner));
116} 126}
127EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit);
117 128
118int reserve_perfctr_nmi(unsigned int msr) 129int reserve_perfctr_nmi(unsigned int msr)
119{ 130{
@@ -128,6 +139,7 @@ int reserve_perfctr_nmi(unsigned int msr)
128 return 1; 139 return 1;
129 return 0; 140 return 0;
130} 141}
142EXPORT_SYMBOL(reserve_perfctr_nmi);
131 143
132void release_perfctr_nmi(unsigned int msr) 144void release_perfctr_nmi(unsigned int msr)
133{ 145{
@@ -140,6 +152,7 @@ void release_perfctr_nmi(unsigned int msr)
140 152
141 clear_bit(counter, perfctr_nmi_owner); 153 clear_bit(counter, perfctr_nmi_owner);
142} 154}
155EXPORT_SYMBOL(release_perfctr_nmi);
143 156
144int reserve_evntsel_nmi(unsigned int msr) 157int reserve_evntsel_nmi(unsigned int msr)
145{ 158{
@@ -154,6 +167,7 @@ int reserve_evntsel_nmi(unsigned int msr)
154 return 1; 167 return 1;
155 return 0; 168 return 0;
156} 169}
170EXPORT_SYMBOL(reserve_evntsel_nmi);
157 171
158void release_evntsel_nmi(unsigned int msr) 172void release_evntsel_nmi(unsigned int msr)
159{ 173{
@@ -166,11 +180,6 @@ void release_evntsel_nmi(unsigned int msr)
166 180
167 clear_bit(counter, evntsel_nmi_owner); 181 clear_bit(counter, evntsel_nmi_owner);
168} 182}
169
170EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit);
171EXPORT_SYMBOL(reserve_perfctr_nmi);
172EXPORT_SYMBOL(release_perfctr_nmi);
173EXPORT_SYMBOL(reserve_evntsel_nmi);
174EXPORT_SYMBOL(release_evntsel_nmi); 183EXPORT_SYMBOL(release_evntsel_nmi);
175 184
176void disable_lapic_nmi_watchdog(void) 185void disable_lapic_nmi_watchdog(void)
@@ -180,8 +189,10 @@ void disable_lapic_nmi_watchdog(void)
180 if (atomic_read(&nmi_active) <= 0) 189 if (atomic_read(&nmi_active) <= 0)
181 return; 190 return;
182 191
183 on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); 192 on_each_cpu(stop_apic_nmi_watchdog, NULL, 1);
184 wd_ops->unreserve(); 193
194 if (wd_ops)
195 wd_ops->unreserve();
185 196
186 BUG_ON(atomic_read(&nmi_active) != 0); 197 BUG_ON(atomic_read(&nmi_active) != 0);
187} 198}
@@ -202,7 +213,7 @@ void enable_lapic_nmi_watchdog(void)
202 return; 213 return;
203 } 214 }
204 215
205 on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); 216 on_each_cpu(setup_apic_nmi_watchdog, NULL, 1);
206 touch_nmi_watchdog(); 217 touch_nmi_watchdog();
207} 218}
208 219
@@ -232,8 +243,8 @@ static unsigned int adjust_for_32bit_ctr(unsigned int hz)
232 return retval; 243 return retval;
233} 244}
234 245
235static void 246static void write_watchdog_counter(unsigned int perfctr_msr,
236write_watchdog_counter(unsigned int perfctr_msr, const char *descr, unsigned nmi_hz) 247 const char *descr, unsigned nmi_hz)
237{ 248{
238 u64 count = (u64)cpu_khz * 1000; 249 u64 count = (u64)cpu_khz * 1000;
239 250
@@ -244,7 +255,7 @@ write_watchdog_counter(unsigned int perfctr_msr, const char *descr, unsigned nmi
244} 255}
245 256
246static void write_watchdog_counter32(unsigned int perfctr_msr, 257static void write_watchdog_counter32(unsigned int perfctr_msr,
247 const char *descr, unsigned nmi_hz) 258 const char *descr, unsigned nmi_hz)
248{ 259{
249 u64 count = (u64)cpu_khz * 1000; 260 u64 count = (u64)cpu_khz * 1000;
250 261
@@ -254,9 +265,10 @@ static void write_watchdog_counter32(unsigned int perfctr_msr,
254 wrmsr(perfctr_msr, (u32)(-count), 0); 265 wrmsr(perfctr_msr, (u32)(-count), 0);
255} 266}
256 267
257/* AMD K7/K8/Family10h/Family11h support. AMD keeps this interface 268/*
258 nicely stable so there is not much variety */ 269 * AMD K7/K8/Family10h/Family11h support.
259 270 * AMD keeps this interface nicely stable so there is not much variety
271 */
260#define K7_EVNTSEL_ENABLE (1 << 22) 272#define K7_EVNTSEL_ENABLE (1 << 22)
261#define K7_EVNTSEL_INT (1 << 20) 273#define K7_EVNTSEL_INT (1 << 20)
262#define K7_EVNTSEL_OS (1 << 17) 274#define K7_EVNTSEL_OS (1 << 17)
@@ -289,7 +301,7 @@ static int setup_k7_watchdog(unsigned nmi_hz)
289 301
290 wd->perfctr_msr = perfctr_msr; 302 wd->perfctr_msr = perfctr_msr;
291 wd->evntsel_msr = evntsel_msr; 303 wd->evntsel_msr = evntsel_msr;
292 wd->cccr_msr = 0; //unused 304 wd->cccr_msr = 0; /* unused */
293 return 1; 305 return 1;
294} 306}
295 307
@@ -325,18 +337,19 @@ static void single_msr_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
325} 337}
326 338
327static const struct wd_ops k7_wd_ops = { 339static const struct wd_ops k7_wd_ops = {
328 .reserve = single_msr_reserve, 340 .reserve = single_msr_reserve,
329 .unreserve = single_msr_unreserve, 341 .unreserve = single_msr_unreserve,
330 .setup = setup_k7_watchdog, 342 .setup = setup_k7_watchdog,
331 .rearm = single_msr_rearm, 343 .rearm = single_msr_rearm,
332 .stop = single_msr_stop_watchdog, 344 .stop = single_msr_stop_watchdog,
333 .perfctr = MSR_K7_PERFCTR0, 345 .perfctr = MSR_K7_PERFCTR0,
334 .evntsel = MSR_K7_EVNTSEL0, 346 .evntsel = MSR_K7_EVNTSEL0,
335 .checkbit = 1ULL<<47, 347 .checkbit = 1ULL << 47,
336}; 348};
337 349
338/* Intel Model 6 (PPro+,P2,P3,P-M,Core1) */ 350/*
339 351 * Intel Model 6 (PPro+,P2,P3,P-M,Core1)
352 */
340#define P6_EVNTSEL0_ENABLE (1 << 22) 353#define P6_EVNTSEL0_ENABLE (1 << 22)
341#define P6_EVNTSEL_INT (1 << 20) 354#define P6_EVNTSEL_INT (1 << 20)
342#define P6_EVNTSEL_OS (1 << 17) 355#define P6_EVNTSEL_OS (1 << 17)
@@ -372,52 +385,58 @@ static int setup_p6_watchdog(unsigned nmi_hz)
372 385
373 wd->perfctr_msr = perfctr_msr; 386 wd->perfctr_msr = perfctr_msr;
374 wd->evntsel_msr = evntsel_msr; 387 wd->evntsel_msr = evntsel_msr;
375 wd->cccr_msr = 0; //unused 388 wd->cccr_msr = 0; /* unused */
376 return 1; 389 return 1;
377} 390}
378 391
379static void p6_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz) 392static void p6_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
380{ 393{
381 /* P6 based Pentium M need to re-unmask 394 /*
395 * P6 based Pentium M need to re-unmask
382 * the apic vector but it doesn't hurt 396 * the apic vector but it doesn't hurt
383 * other P6 variant. 397 * other P6 variant.
384 * ArchPerfom/Core Duo also needs this */ 398 * ArchPerfom/Core Duo also needs this
399 */
385 apic_write(APIC_LVTPC, APIC_DM_NMI); 400 apic_write(APIC_LVTPC, APIC_DM_NMI);
401
386 /* P6/ARCH_PERFMON has 32 bit counter write */ 402 /* P6/ARCH_PERFMON has 32 bit counter write */
387 write_watchdog_counter32(wd->perfctr_msr, NULL,nmi_hz); 403 write_watchdog_counter32(wd->perfctr_msr, NULL,nmi_hz);
388} 404}
389 405
390static const struct wd_ops p6_wd_ops = { 406static const struct wd_ops p6_wd_ops = {
391 .reserve = single_msr_reserve, 407 .reserve = single_msr_reserve,
392 .unreserve = single_msr_unreserve, 408 .unreserve = single_msr_unreserve,
393 .setup = setup_p6_watchdog, 409 .setup = setup_p6_watchdog,
394 .rearm = p6_rearm, 410 .rearm = p6_rearm,
395 .stop = single_msr_stop_watchdog, 411 .stop = single_msr_stop_watchdog,
396 .perfctr = MSR_P6_PERFCTR0, 412 .perfctr = MSR_P6_PERFCTR0,
397 .evntsel = MSR_P6_EVNTSEL0, 413 .evntsel = MSR_P6_EVNTSEL0,
398 .checkbit = 1ULL<<39, 414 .checkbit = 1ULL << 39,
399}; 415};
400 416
401/* Intel P4 performance counters. By far the most complicated of all. */ 417/*
402 418 * Intel P4 performance counters.
403#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) 419 * By far the most complicated of all.
404#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) 420 */
405#define P4_ESCR_OS (1<<3) 421#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1 << 7)
406#define P4_ESCR_USR (1<<2) 422#define P4_ESCR_EVENT_SELECT(N) ((N) << 25)
407#define P4_CCCR_OVF_PMI0 (1<<26) 423#define P4_ESCR_OS (1 << 3)
408#define P4_CCCR_OVF_PMI1 (1<<27) 424#define P4_ESCR_USR (1 << 2)
409#define P4_CCCR_THRESHOLD(N) ((N)<<20) 425#define P4_CCCR_OVF_PMI0 (1 << 26)
410#define P4_CCCR_COMPLEMENT (1<<19) 426#define P4_CCCR_OVF_PMI1 (1 << 27)
411#define P4_CCCR_COMPARE (1<<18) 427#define P4_CCCR_THRESHOLD(N) ((N) << 20)
412#define P4_CCCR_REQUIRED (3<<16) 428#define P4_CCCR_COMPLEMENT (1 << 19)
413#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) 429#define P4_CCCR_COMPARE (1 << 18)
414#define P4_CCCR_ENABLE (1<<12) 430#define P4_CCCR_REQUIRED (3 << 16)
415#define P4_CCCR_OVF (1<<31) 431#define P4_CCCR_ESCR_SELECT(N) ((N) << 13)
416 432#define P4_CCCR_ENABLE (1 << 12)
417/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter 433#define P4_CCCR_OVF (1 << 31)
418 CRU_ESCR0 (with any non-null event selector) through a complemented
419 max threshold. [IA32-Vol3, Section 14.9.9] */
420 434
435/*
436 * Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter
437 * CRU_ESCR0 (with any non-null event selector) through a complemented
438 * max threshold. [IA32-Vol3, Section 14.9.9]
439 */
421static int setup_p4_watchdog(unsigned nmi_hz) 440static int setup_p4_watchdog(unsigned nmi_hz)
422{ 441{
423 unsigned int perfctr_msr, evntsel_msr, cccr_msr; 442 unsigned int perfctr_msr, evntsel_msr, cccr_msr;
@@ -442,7 +461,8 @@ static int setup_p4_watchdog(unsigned nmi_hz)
442#endif 461#endif
443 ht_num = 0; 462 ht_num = 0;
444 463
445 /* performance counters are shared resources 464 /*
465 * performance counters are shared resources
446 * assign each hyperthread its own set 466 * assign each hyperthread its own set
447 * (re-use the ESCR0 register, seems safe 467 * (re-use the ESCR0 register, seems safe
448 * and keeps the cccr_val the same) 468 * and keeps the cccr_val the same)
@@ -540,20 +560,21 @@ static void p4_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
540} 560}
541 561
542static const struct wd_ops p4_wd_ops = { 562static const struct wd_ops p4_wd_ops = {
543 .reserve = p4_reserve, 563 .reserve = p4_reserve,
544 .unreserve = p4_unreserve, 564 .unreserve = p4_unreserve,
545 .setup = setup_p4_watchdog, 565 .setup = setup_p4_watchdog,
546 .rearm = p4_rearm, 566 .rearm = p4_rearm,
547 .stop = stop_p4_watchdog, 567 .stop = stop_p4_watchdog,
548 /* RED-PEN this is wrong for the other sibling */ 568 /* RED-PEN this is wrong for the other sibling */
549 .perfctr = MSR_P4_BPU_PERFCTR0, 569 .perfctr = MSR_P4_BPU_PERFCTR0,
550 .evntsel = MSR_P4_BSU_ESCR0, 570 .evntsel = MSR_P4_BSU_ESCR0,
551 .checkbit = 1ULL<<39, 571 .checkbit = 1ULL << 39,
552}; 572};
553 573
554/* Watchdog using the Intel architected PerfMon. Used for Core2 and hopefully 574/*
555 all future Intel CPUs. */ 575 * Watchdog using the Intel architected PerfMon.
556 576 * Used for Core2 and hopefully all future Intel CPUs.
577 */
557#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 578#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL
558#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK 579#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK
559 580
@@ -599,19 +620,19 @@ static int setup_intel_arch_watchdog(unsigned nmi_hz)
599 620
600 wd->perfctr_msr = perfctr_msr; 621 wd->perfctr_msr = perfctr_msr;
601 wd->evntsel_msr = evntsel_msr; 622 wd->evntsel_msr = evntsel_msr;
602 wd->cccr_msr = 0; //unused 623 wd->cccr_msr = 0; /* unused */
603 intel_arch_wd_ops.checkbit = 1ULL << (eax.split.bit_width - 1); 624 intel_arch_wd_ops.checkbit = 1ULL << (eax.split.bit_width - 1);
604 return 1; 625 return 1;
605} 626}
606 627
607static struct wd_ops intel_arch_wd_ops __read_mostly = { 628static struct wd_ops intel_arch_wd_ops __read_mostly = {
608 .reserve = single_msr_reserve, 629 .reserve = single_msr_reserve,
609 .unreserve = single_msr_unreserve, 630 .unreserve = single_msr_unreserve,
610 .setup = setup_intel_arch_watchdog, 631 .setup = setup_intel_arch_watchdog,
611 .rearm = p6_rearm, 632 .rearm = p6_rearm,
612 .stop = single_msr_stop_watchdog, 633 .stop = single_msr_stop_watchdog,
613 .perfctr = MSR_ARCH_PERFMON_PERFCTR1, 634 .perfctr = MSR_ARCH_PERFMON_PERFCTR1,
614 .evntsel = MSR_ARCH_PERFMON_EVENTSEL1, 635 .evntsel = MSR_ARCH_PERFMON_EVENTSEL1,
615}; 636};
616 637
617static void probe_nmi_watchdog(void) 638static void probe_nmi_watchdog(void)
@@ -624,8 +645,10 @@ static void probe_nmi_watchdog(void)
624 wd_ops = &k7_wd_ops; 645 wd_ops = &k7_wd_ops;
625 break; 646 break;
626 case X86_VENDOR_INTEL: 647 case X86_VENDOR_INTEL:
627 /* Work around Core Duo (Yonah) errata AE49 where perfctr1 648 /*
628 doesn't have a working enable bit. */ 649 * Work around Core Duo (Yonah) errata AE49 where perfctr1
650 * doesn't have a working enable bit.
651 */
629 if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 14) { 652 if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 14) {
630 intel_arch_wd_ops.perfctr = MSR_ARCH_PERFMON_PERFCTR0; 653 intel_arch_wd_ops.perfctr = MSR_ARCH_PERFMON_PERFCTR0;
631 intel_arch_wd_ops.evntsel = MSR_ARCH_PERFMON_EVENTSEL0; 654 intel_arch_wd_ops.evntsel = MSR_ARCH_PERFMON_EVENTSEL0;
@@ -636,7 +659,7 @@ static void probe_nmi_watchdog(void)
636 } 659 }
637 switch (boot_cpu_data.x86) { 660 switch (boot_cpu_data.x86) {
638 case 6: 661 case 6:
639 if (boot_cpu_data.x86_model > 0xd) 662 if (boot_cpu_data.x86_model > 13)
640 return; 663 return;
641 664
642 wd_ops = &p6_wd_ops; 665 wd_ops = &p6_wd_ops;
@@ -697,10 +720,11 @@ int lapic_wd_event(unsigned nmi_hz)
697{ 720{
698 struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); 721 struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
699 u64 ctr; 722 u64 ctr;
723
700 rdmsrl(wd->perfctr_msr, ctr); 724 rdmsrl(wd->perfctr_msr, ctr);
701 if (ctr & wd_ops->checkbit) { /* perfctr still running? */ 725 if (ctr & wd_ops->checkbit) /* perfctr still running? */
702 return 0; 726 return 0;
703 } 727
704 wd_ops->rearm(wd, nmi_hz); 728 wd_ops->rearm(wd, nmi_hz);
705 return 1; 729 return 1;
706} 730}
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index daff52a62248..2de5fa2bbf77 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -33,6 +33,7 @@
33#include <linux/init.h> 33#include <linux/init.h>
34#include <linux/poll.h> 34#include <linux/poll.h>
35#include <linux/smp.h> 35#include <linux/smp.h>
36#include <linux/smp_lock.h>
36#include <linux/major.h> 37#include <linux/major.h>
37#include <linux/fs.h> 38#include <linux/fs.h>
38#include <linux/smp_lock.h> 39#include <linux/smp_lock.h>
@@ -95,7 +96,7 @@ static ssize_t cpuid_read(struct file *file, char __user *buf,
95 for (; count; count -= 16) { 96 for (; count; count -= 16) {
96 cmd.eax = pos; 97 cmd.eax = pos;
97 cmd.ecx = pos >> 32; 98 cmd.ecx = pos >> 32;
98 smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1, 1); 99 smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1);
99 if (copy_to_user(tmp, &cmd, 16)) 100 if (copy_to_user(tmp, &cmd, 16))
100 return -EFAULT; 101 return -EFAULT;
101 tmp += 16; 102 tmp += 16;
@@ -107,15 +108,23 @@ static ssize_t cpuid_read(struct file *file, char __user *buf,
107 108
108static int cpuid_open(struct inode *inode, struct file *file) 109static int cpuid_open(struct inode *inode, struct file *file)
109{ 110{
110 unsigned int cpu = iminor(file->f_path.dentry->d_inode); 111 unsigned int cpu;
111 struct cpuinfo_x86 *c = &cpu_data(cpu); 112 struct cpuinfo_x86 *c;
112 113 int ret = 0;
113 if (cpu >= NR_CPUS || !cpu_online(cpu)) 114
114 return -ENXIO; /* No such CPU */ 115 lock_kernel();
116
117 cpu = iminor(file->f_path.dentry->d_inode);
118 if (cpu >= NR_CPUS || !cpu_online(cpu)) {
119 ret = -ENXIO; /* No such CPU */
120 goto out;
121 }
122 c = &cpu_data(cpu);
115 if (c->cpuid_level < 0) 123 if (c->cpuid_level < 0)
116 return -EIO; /* CPUID not supported */ 124 ret = -EIO; /* CPUID not supported */
117 125out:
118 return 0; 126 unlock_kernel();
127 return ret;
119} 128}
120 129
121/* 130/*
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
new file mode 100644
index 000000000000..28c29180b380
--- /dev/null
+++ b/arch/x86/kernel/e820.c
@@ -0,0 +1,1390 @@
1/*
2 * Handle the memory map.
3 * The functions here do the job until bootmem takes over.
4 *
5 * Getting sanitize_e820_map() in sync with i386 version by applying change:
6 * - Provisions for empty E820 memory regions (reported by certain BIOSes).
7 * Alex Achenbach <xela@slit.de>, December 2002.
8 * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
9 *
10 */
11#include <linux/kernel.h>
12#include <linux/types.h>
13#include <linux/init.h>
14#include <linux/bootmem.h>
15#include <linux/ioport.h>
16#include <linux/string.h>
17#include <linux/kexec.h>
18#include <linux/module.h>
19#include <linux/mm.h>
20#include <linux/pfn.h>
21#include <linux/suspend.h>
22#include <linux/firmware-map.h>
23
24#include <asm/pgtable.h>
25#include <asm/page.h>
26#include <asm/e820.h>
27#include <asm/proto.h>
28#include <asm/setup.h>
29#include <asm/trampoline.h>
30
31/*
32 * The e820 map is the map that gets modified e.g. with command line parameters
33 * and that is also registered with modifications in the kernel resource tree
34 * with the iomem_resource as parent.
35 *
36 * The e820_saved is directly saved after the BIOS-provided memory map is
37 * copied. It doesn't get modified afterwards. It's registered for the
38 * /sys/firmware/memmap interface.
39 *
40 * That memory map is not modified and is used as base for kexec. The kexec'd
41 * kernel should get the same memory map as the firmware provides. Then the
42 * user can e.g. boot the original kernel with mem=1G while still booting the
43 * next kernel with full memory.
44 */
45struct e820map e820;
46struct e820map e820_saved;
47
48/* For PCI or other memory-mapped resources */
49unsigned long pci_mem_start = 0xaeedbabe;
50#ifdef CONFIG_PCI
51EXPORT_SYMBOL(pci_mem_start);
52#endif
53
54/*
55 * This function checks if any part of the range <start,end> is mapped
56 * with type.
57 */
58int
59e820_any_mapped(u64 start, u64 end, unsigned type)
60{
61 int i;
62
63 for (i = 0; i < e820.nr_map; i++) {
64 struct e820entry *ei = &e820.map[i];
65
66 if (type && ei->type != type)
67 continue;
68 if (ei->addr >= end || ei->addr + ei->size <= start)
69 continue;
70 return 1;
71 }
72 return 0;
73}
74EXPORT_SYMBOL_GPL(e820_any_mapped);
75
76/*
77 * This function checks if the entire range <start,end> is mapped with type.
78 *
79 * Note: this function only works correct if the e820 table is sorted and
80 * not-overlapping, which is the case
81 */
82int __init e820_all_mapped(u64 start, u64 end, unsigned type)
83{
84 int i;
85
86 for (i = 0; i < e820.nr_map; i++) {
87 struct e820entry *ei = &e820.map[i];
88
89 if (type && ei->type != type)
90 continue;
91 /* is the region (part) in overlap with the current region ?*/
92 if (ei->addr >= end || ei->addr + ei->size <= start)
93 continue;
94
95 /* if the region is at the beginning of <start,end> we move
96 * start to the end of the region since it's ok until there
97 */
98 if (ei->addr <= start)
99 start = ei->addr + ei->size;
100 /*
101 * if start is now at or beyond end, we're done, full
102 * coverage
103 */
104 if (start >= end)
105 return 1;
106 }
107 return 0;
108}
109
110/*
111 * Add a memory region to the kernel e820 map.
112 */
113void __init e820_add_region(u64 start, u64 size, int type)
114{
115 int x = e820.nr_map;
116
117 if (x == ARRAY_SIZE(e820.map)) {
118 printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
119 return;
120 }
121
122 e820.map[x].addr = start;
123 e820.map[x].size = size;
124 e820.map[x].type = type;
125 e820.nr_map++;
126}
127
128void __init e820_print_map(char *who)
129{
130 int i;
131
132 for (i = 0; i < e820.nr_map; i++) {
133 printk(KERN_INFO " %s: %016Lx - %016Lx ", who,
134 (unsigned long long) e820.map[i].addr,
135 (unsigned long long)
136 (e820.map[i].addr + e820.map[i].size));
137 switch (e820.map[i].type) {
138 case E820_RAM:
139 case E820_RESERVED_KERN:
140 printk(KERN_CONT "(usable)\n");
141 break;
142 case E820_RESERVED:
143 printk(KERN_CONT "(reserved)\n");
144 break;
145 case E820_ACPI:
146 printk(KERN_CONT "(ACPI data)\n");
147 break;
148 case E820_NVS:
149 printk(KERN_CONT "(ACPI NVS)\n");
150 break;
151 default:
152 printk(KERN_CONT "type %u\n", e820.map[i].type);
153 break;
154 }
155 }
156}
157
158/*
159 * Sanitize the BIOS e820 map.
160 *
161 * Some e820 responses include overlapping entries. The following
162 * replaces the original e820 map with a new one, removing overlaps,
163 * and resolving conflicting memory types in favor of highest
164 * numbered type.
165 *
166 * The input parameter biosmap points to an array of 'struct
167 * e820entry' which on entry has elements in the range [0, *pnr_map)
168 * valid, and which has space for up to max_nr_map entries.
169 * On return, the resulting sanitized e820 map entries will be in
170 * overwritten in the same location, starting at biosmap.
171 *
172 * The integer pointed to by pnr_map must be valid on entry (the
173 * current number of valid entries located at biosmap) and will
174 * be updated on return, with the new number of valid entries
175 * (something no more than max_nr_map.)
176 *
177 * The return value from sanitize_e820_map() is zero if it
178 * successfully 'sanitized' the map entries passed in, and is -1
179 * if it did nothing, which can happen if either of (1) it was
180 * only passed one map entry, or (2) any of the input map entries
181 * were invalid (start + size < start, meaning that the size was
182 * so big the described memory range wrapped around through zero.)
183 *
184 * Visually we're performing the following
185 * (1,2,3,4 = memory types)...
186 *
187 * Sample memory map (w/overlaps):
188 * ____22__________________
189 * ______________________4_
190 * ____1111________________
191 * _44_____________________
192 * 11111111________________
193 * ____________________33__
194 * ___________44___________
195 * __________33333_________
196 * ______________22________
197 * ___________________2222_
198 * _________111111111______
199 * _____________________11_
200 * _________________4______
201 *
202 * Sanitized equivalent (no overlap):
203 * 1_______________________
204 * _44_____________________
205 * ___1____________________
206 * ____22__________________
207 * ______11________________
208 * _________1______________
209 * __________3_____________
210 * ___________44___________
211 * _____________33_________
212 * _______________2________
213 * ________________1_______
214 * _________________4______
215 * ___________________2____
216 * ____________________33__
217 * ______________________4_
218 */
219
220int __init sanitize_e820_map(struct e820entry *biosmap, int max_nr_map,
221 int *pnr_map)
222{
223 struct change_member {
224 struct e820entry *pbios; /* pointer to original bios entry */
225 unsigned long long addr; /* address for this change point */
226 };
227 static struct change_member change_point_list[2*E820_X_MAX] __initdata;
228 static struct change_member *change_point[2*E820_X_MAX] __initdata;
229 static struct e820entry *overlap_list[E820_X_MAX] __initdata;
230 static struct e820entry new_bios[E820_X_MAX] __initdata;
231 struct change_member *change_tmp;
232 unsigned long current_type, last_type;
233 unsigned long long last_addr;
234 int chgidx, still_changing;
235 int overlap_entries;
236 int new_bios_entry;
237 int old_nr, new_nr, chg_nr;
238 int i;
239
240 /* if there's only one memory region, don't bother */
241 if (*pnr_map < 2)
242 return -1;
243
244 old_nr = *pnr_map;
245 BUG_ON(old_nr > max_nr_map);
246
247 /* bail out if we find any unreasonable addresses in bios map */
248 for (i = 0; i < old_nr; i++)
249 if (biosmap[i].addr + biosmap[i].size < biosmap[i].addr)
250 return -1;
251
252 /* create pointers for initial change-point information (for sorting) */
253 for (i = 0; i < 2 * old_nr; i++)
254 change_point[i] = &change_point_list[i];
255
256 /* record all known change-points (starting and ending addresses),
257 omitting those that are for empty memory regions */
258 chgidx = 0;
259 for (i = 0; i < old_nr; i++) {
260 if (biosmap[i].size != 0) {
261 change_point[chgidx]->addr = biosmap[i].addr;
262 change_point[chgidx++]->pbios = &biosmap[i];
263 change_point[chgidx]->addr = biosmap[i].addr +
264 biosmap[i].size;
265 change_point[chgidx++]->pbios = &biosmap[i];
266 }
267 }
268 chg_nr = chgidx;
269
270 /* sort change-point list by memory addresses (low -> high) */
271 still_changing = 1;
272 while (still_changing) {
273 still_changing = 0;
274 for (i = 1; i < chg_nr; i++) {
275 unsigned long long curaddr, lastaddr;
276 unsigned long long curpbaddr, lastpbaddr;
277
278 curaddr = change_point[i]->addr;
279 lastaddr = change_point[i - 1]->addr;
280 curpbaddr = change_point[i]->pbios->addr;
281 lastpbaddr = change_point[i - 1]->pbios->addr;
282
283 /*
284 * swap entries, when:
285 *
286 * curaddr > lastaddr or
287 * curaddr == lastaddr and curaddr == curpbaddr and
288 * lastaddr != lastpbaddr
289 */
290 if (curaddr < lastaddr ||
291 (curaddr == lastaddr && curaddr == curpbaddr &&
292 lastaddr != lastpbaddr)) {
293 change_tmp = change_point[i];
294 change_point[i] = change_point[i-1];
295 change_point[i-1] = change_tmp;
296 still_changing = 1;
297 }
298 }
299 }
300
301 /* create a new bios memory map, removing overlaps */
302 overlap_entries = 0; /* number of entries in the overlap table */
303 new_bios_entry = 0; /* index for creating new bios map entries */
304 last_type = 0; /* start with undefined memory type */
305 last_addr = 0; /* start with 0 as last starting address */
306
307 /* loop through change-points, determining affect on the new bios map */
308 for (chgidx = 0; chgidx < chg_nr; chgidx++) {
309 /* keep track of all overlapping bios entries */
310 if (change_point[chgidx]->addr ==
311 change_point[chgidx]->pbios->addr) {
312 /*
313 * add map entry to overlap list (> 1 entry
314 * implies an overlap)
315 */
316 overlap_list[overlap_entries++] =
317 change_point[chgidx]->pbios;
318 } else {
319 /*
320 * remove entry from list (order independent,
321 * so swap with last)
322 */
323 for (i = 0; i < overlap_entries; i++) {
324 if (overlap_list[i] ==
325 change_point[chgidx]->pbios)
326 overlap_list[i] =
327 overlap_list[overlap_entries-1];
328 }
329 overlap_entries--;
330 }
331 /*
332 * if there are overlapping entries, decide which
333 * "type" to use (larger value takes precedence --
334 * 1=usable, 2,3,4,4+=unusable)
335 */
336 current_type = 0;
337 for (i = 0; i < overlap_entries; i++)
338 if (overlap_list[i]->type > current_type)
339 current_type = overlap_list[i]->type;
340 /*
341 * continue building up new bios map based on this
342 * information
343 */
344 if (current_type != last_type) {
345 if (last_type != 0) {
346 new_bios[new_bios_entry].size =
347 change_point[chgidx]->addr - last_addr;
348 /*
349 * move forward only if the new size
350 * was non-zero
351 */
352 if (new_bios[new_bios_entry].size != 0)
353 /*
354 * no more space left for new
355 * bios entries ?
356 */
357 if (++new_bios_entry >= max_nr_map)
358 break;
359 }
360 if (current_type != 0) {
361 new_bios[new_bios_entry].addr =
362 change_point[chgidx]->addr;
363 new_bios[new_bios_entry].type = current_type;
364 last_addr = change_point[chgidx]->addr;
365 }
366 last_type = current_type;
367 }
368 }
369 /* retain count for new bios entries */
370 new_nr = new_bios_entry;
371
372 /* copy new bios mapping into original location */
373 memcpy(biosmap, new_bios, new_nr * sizeof(struct e820entry));
374 *pnr_map = new_nr;
375
376 return 0;
377}
378
379static int __init __append_e820_map(struct e820entry *biosmap, int nr_map)
380{
381 while (nr_map) {
382 u64 start = biosmap->addr;
383 u64 size = biosmap->size;
384 u64 end = start + size;
385 u32 type = biosmap->type;
386
387 /* Overflow in 64 bits? Ignore the memory map. */
388 if (start > end)
389 return -1;
390
391 e820_add_region(start, size, type);
392
393 biosmap++;
394 nr_map--;
395 }
396 return 0;
397}
398
399/*
400 * Copy the BIOS e820 map into a safe place.
401 *
402 * Sanity-check it while we're at it..
403 *
404 * If we're lucky and live on a modern system, the setup code
405 * will have given us a memory map that we can use to properly
406 * set up memory. If we aren't, we'll fake a memory map.
407 */
408static int __init append_e820_map(struct e820entry *biosmap, int nr_map)
409{
410 /* Only one memory region (or negative)? Ignore it */
411 if (nr_map < 2)
412 return -1;
413
414 return __append_e820_map(biosmap, nr_map);
415}
416
417static u64 __init e820_update_range_map(struct e820map *e820x, u64 start,
418 u64 size, unsigned old_type,
419 unsigned new_type)
420{
421 int i;
422 u64 real_updated_size = 0;
423
424 BUG_ON(old_type == new_type);
425
426 if (size > (ULLONG_MAX - start))
427 size = ULLONG_MAX - start;
428
429 for (i = 0; i < e820.nr_map; i++) {
430 struct e820entry *ei = &e820x->map[i];
431 u64 final_start, final_end;
432 if (ei->type != old_type)
433 continue;
434 /* totally covered? */
435 if (ei->addr >= start &&
436 (ei->addr + ei->size) <= (start + size)) {
437 ei->type = new_type;
438 real_updated_size += ei->size;
439 continue;
440 }
441 /* partially covered */
442 final_start = max(start, ei->addr);
443 final_end = min(start + size, ei->addr + ei->size);
444 if (final_start >= final_end)
445 continue;
446 e820_add_region(final_start, final_end - final_start,
447 new_type);
448 real_updated_size += final_end - final_start;
449
450 ei->size -= final_end - final_start;
451 if (ei->addr < final_start)
452 continue;
453 ei->addr = final_end;
454 }
455 return real_updated_size;
456}
457
458u64 __init e820_update_range(u64 start, u64 size, unsigned old_type,
459 unsigned new_type)
460{
461 return e820_update_range_map(&e820, start, size, old_type, new_type);
462}
463
464static u64 __init e820_update_range_saved(u64 start, u64 size,
465 unsigned old_type, unsigned new_type)
466{
467 return e820_update_range_map(&e820_saved, start, size, old_type,
468 new_type);
469}
470
471/* make e820 not cover the range */
472u64 __init e820_remove_range(u64 start, u64 size, unsigned old_type,
473 int checktype)
474{
475 int i;
476 u64 real_removed_size = 0;
477
478 if (size > (ULLONG_MAX - start))
479 size = ULLONG_MAX - start;
480
481 for (i = 0; i < e820.nr_map; i++) {
482 struct e820entry *ei = &e820.map[i];
483 u64 final_start, final_end;
484
485 if (checktype && ei->type != old_type)
486 continue;
487 /* totally covered? */
488 if (ei->addr >= start &&
489 (ei->addr + ei->size) <= (start + size)) {
490 real_removed_size += ei->size;
491 memset(ei, 0, sizeof(struct e820entry));
492 continue;
493 }
494 /* partially covered */
495 final_start = max(start, ei->addr);
496 final_end = min(start + size, ei->addr + ei->size);
497 if (final_start >= final_end)
498 continue;
499 real_removed_size += final_end - final_start;
500
501 ei->size -= final_end - final_start;
502 if (ei->addr < final_start)
503 continue;
504 ei->addr = final_end;
505 }
506 return real_removed_size;
507}
508
509void __init update_e820(void)
510{
511 int nr_map;
512
513 nr_map = e820.nr_map;
514 if (sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &nr_map))
515 return;
516 e820.nr_map = nr_map;
517 printk(KERN_INFO "modified physical RAM map:\n");
518 e820_print_map("modified");
519}
520static void __init update_e820_saved(void)
521{
522 int nr_map;
523
524 nr_map = e820_saved.nr_map;
525 if (sanitize_e820_map(e820_saved.map, ARRAY_SIZE(e820_saved.map), &nr_map))
526 return;
527 e820_saved.nr_map = nr_map;
528}
529#define MAX_GAP_END 0x100000000ull
530/*
531 * Search for a gap in the e820 memory space from start_addr to end_addr.
532 */
533__init int e820_search_gap(unsigned long *gapstart, unsigned long *gapsize,
534 unsigned long start_addr, unsigned long long end_addr)
535{
536 unsigned long long last;
537 int i = e820.nr_map;
538 int found = 0;
539
540 last = (end_addr && end_addr < MAX_GAP_END) ? end_addr : MAX_GAP_END;
541
542 while (--i >= 0) {
543 unsigned long long start = e820.map[i].addr;
544 unsigned long long end = start + e820.map[i].size;
545
546 if (end < start_addr)
547 continue;
548
549 /*
550 * Since "last" is at most 4GB, we know we'll
551 * fit in 32 bits if this condition is true
552 */
553 if (last > end) {
554 unsigned long gap = last - end;
555
556 if (gap >= *gapsize) {
557 *gapsize = gap;
558 *gapstart = end;
559 found = 1;
560 }
561 }
562 if (start < last)
563 last = start;
564 }
565 return found;
566}
567
568/*
569 * Search for the biggest gap in the low 32 bits of the e820
570 * memory space. We pass this space to PCI to assign MMIO resources
571 * for hotplug or unconfigured devices in.
572 * Hopefully the BIOS let enough space left.
573 */
574__init void e820_setup_gap(void)
575{
576 unsigned long gapstart, gapsize, round;
577 int found;
578
579 gapstart = 0x10000000;
580 gapsize = 0x400000;
581 found = e820_search_gap(&gapstart, &gapsize, 0, MAX_GAP_END);
582
583#ifdef CONFIG_X86_64
584 if (!found) {
585 gapstart = (max_pfn << PAGE_SHIFT) + 1024*1024;
586 printk(KERN_ERR "PCI: Warning: Cannot find a gap in the 32bit "
587 "address range\n"
588 KERN_ERR "PCI: Unassigned devices with 32bit resource "
589 "registers may break!\n");
590 }
591#endif
592
593 /*
594 * See how much we want to round up: start off with
595 * rounding to the next 1MB area.
596 */
597 round = 0x100000;
598 while ((gapsize >> 4) > round)
599 round += round;
600 /* Fun with two's complement */
601 pci_mem_start = (gapstart + round) & -round;
602
603 printk(KERN_INFO
604 "Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
605 pci_mem_start, gapstart, gapsize);
606}
607
608/**
609 * Because of the size limitation of struct boot_params, only first
610 * 128 E820 memory entries are passed to kernel via
611 * boot_params.e820_map, others are passed via SETUP_E820_EXT node of
612 * linked list of struct setup_data, which is parsed here.
613 */
614void __init parse_e820_ext(struct setup_data *sdata, unsigned long pa_data)
615{
616 u32 map_len;
617 int entries;
618 struct e820entry *extmap;
619
620 entries = sdata->len / sizeof(struct e820entry);
621 map_len = sdata->len + sizeof(struct setup_data);
622 if (map_len > PAGE_SIZE)
623 sdata = early_ioremap(pa_data, map_len);
624 extmap = (struct e820entry *)(sdata->data);
625 __append_e820_map(extmap, entries);
626 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
627 if (map_len > PAGE_SIZE)
628 early_iounmap(sdata, map_len);
629 printk(KERN_INFO "extended physical RAM map:\n");
630 e820_print_map("extended");
631}
632
633#if defined(CONFIG_X86_64) || \
634 (defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION))
635/**
636 * Find the ranges of physical addresses that do not correspond to
637 * e820 RAM areas and mark the corresponding pages as nosave for
638 * hibernation (32 bit) or software suspend and suspend to RAM (64 bit).
639 *
640 * This function requires the e820 map to be sorted and without any
641 * overlapping entries and assumes the first e820 area to be RAM.
642 */
643void __init e820_mark_nosave_regions(unsigned long limit_pfn)
644{
645 int i;
646 unsigned long pfn;
647
648 pfn = PFN_DOWN(e820.map[0].addr + e820.map[0].size);
649 for (i = 1; i < e820.nr_map; i++) {
650 struct e820entry *ei = &e820.map[i];
651
652 if (pfn < PFN_UP(ei->addr))
653 register_nosave_region(pfn, PFN_UP(ei->addr));
654
655 pfn = PFN_DOWN(ei->addr + ei->size);
656 if (ei->type != E820_RAM && ei->type != E820_RESERVED_KERN)
657 register_nosave_region(PFN_UP(ei->addr), pfn);
658
659 if (pfn >= limit_pfn)
660 break;
661 }
662}
663#endif
664
665/*
666 * Early reserved memory areas.
667 */
668#define MAX_EARLY_RES 20
669
670struct early_res {
671 u64 start, end;
672 char name[16];
673 char overlap_ok;
674};
675static struct early_res early_res[MAX_EARLY_RES] __initdata = {
676 { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */
677#if defined(CONFIG_X86_64) && defined(CONFIG_X86_TRAMPOLINE)
678 { TRAMPOLINE_BASE, TRAMPOLINE_BASE + 2 * PAGE_SIZE, "TRAMPOLINE" },
679#endif
680#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
681 /*
682 * But first pinch a few for the stack/trampoline stuff
683 * FIXME: Don't need the extra page at 4K, but need to fix
684 * trampoline before removing it. (see the GDT stuff)
685 */
686 { PAGE_SIZE, PAGE_SIZE + PAGE_SIZE, "EX TRAMPOLINE" },
687 /*
688 * Has to be in very low memory so we can execute
689 * real-mode AP code.
690 */
691 { TRAMPOLINE_BASE, TRAMPOLINE_BASE + PAGE_SIZE, "TRAMPOLINE" },
692#endif
693 {}
694};
695
696static int __init find_overlapped_early(u64 start, u64 end)
697{
698 int i;
699 struct early_res *r;
700
701 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
702 r = &early_res[i];
703 if (end > r->start && start < r->end)
704 break;
705 }
706
707 return i;
708}
709
710/*
711 * Drop the i-th range from the early reservation map,
712 * by copying any higher ranges down one over it, and
713 * clearing what had been the last slot.
714 */
715static void __init drop_range(int i)
716{
717 int j;
718
719 for (j = i + 1; j < MAX_EARLY_RES && early_res[j].end; j++)
720 ;
721
722 memmove(&early_res[i], &early_res[i + 1],
723 (j - 1 - i) * sizeof(struct early_res));
724
725 early_res[j - 1].end = 0;
726}
727
728/*
729 * Split any existing ranges that:
730 * 1) are marked 'overlap_ok', and
731 * 2) overlap with the stated range [start, end)
732 * into whatever portion (if any) of the existing range is entirely
733 * below or entirely above the stated range. Drop the portion
734 * of the existing range that overlaps with the stated range,
735 * which will allow the caller of this routine to then add that
736 * stated range without conflicting with any existing range.
737 */
738static void __init drop_overlaps_that_are_ok(u64 start, u64 end)
739{
740 int i;
741 struct early_res *r;
742 u64 lower_start, lower_end;
743 u64 upper_start, upper_end;
744 char name[16];
745
746 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
747 r = &early_res[i];
748
749 /* Continue past non-overlapping ranges */
750 if (end <= r->start || start >= r->end)
751 continue;
752
753 /*
754 * Leave non-ok overlaps as is; let caller
755 * panic "Overlapping early reservations"
756 * when it hits this overlap.
757 */
758 if (!r->overlap_ok)
759 return;
760
761 /*
762 * We have an ok overlap. We will drop it from the early
763 * reservation map, and add back in any non-overlapping
764 * portions (lower or upper) as separate, overlap_ok,
765 * non-overlapping ranges.
766 */
767
768 /* 1. Note any non-overlapping (lower or upper) ranges. */
769 strncpy(name, r->name, sizeof(name) - 1);
770
771 lower_start = lower_end = 0;
772 upper_start = upper_end = 0;
773 if (r->start < start) {
774 lower_start = r->start;
775 lower_end = start;
776 }
777 if (r->end > end) {
778 upper_start = end;
779 upper_end = r->end;
780 }
781
782 /* 2. Drop the original ok overlapping range */
783 drop_range(i);
784
785 i--; /* resume for-loop on copied down entry */
786
787 /* 3. Add back in any non-overlapping ranges. */
788 if (lower_end)
789 reserve_early_overlap_ok(lower_start, lower_end, name);
790 if (upper_end)
791 reserve_early_overlap_ok(upper_start, upper_end, name);
792 }
793}
794
795static void __init __reserve_early(u64 start, u64 end, char *name,
796 int overlap_ok)
797{
798 int i;
799 struct early_res *r;
800
801 i = find_overlapped_early(start, end);
802 if (i >= MAX_EARLY_RES)
803 panic("Too many early reservations");
804 r = &early_res[i];
805 if (r->end)
806 panic("Overlapping early reservations "
807 "%llx-%llx %s to %llx-%llx %s\n",
808 start, end - 1, name?name:"", r->start,
809 r->end - 1, r->name);
810 r->start = start;
811 r->end = end;
812 r->overlap_ok = overlap_ok;
813 if (name)
814 strncpy(r->name, name, sizeof(r->name) - 1);
815}
816
817/*
818 * A few early reservtations come here.
819 *
820 * The 'overlap_ok' in the name of this routine does -not- mean it
821 * is ok for these reservations to overlap an earlier reservation.
822 * Rather it means that it is ok for subsequent reservations to
823 * overlap this one.
824 *
825 * Use this entry point to reserve early ranges when you are doing
826 * so out of "Paranoia", reserving perhaps more memory than you need,
827 * just in case, and don't mind a subsequent overlapping reservation
828 * that is known to be needed.
829 *
830 * The drop_overlaps_that_are_ok() call here isn't really needed.
831 * It would be needed if we had two colliding 'overlap_ok'
832 * reservations, so that the second such would not panic on the
833 * overlap with the first. We don't have any such as of this
834 * writing, but might as well tolerate such if it happens in
835 * the future.
836 */
837void __init reserve_early_overlap_ok(u64 start, u64 end, char *name)
838{
839 drop_overlaps_that_are_ok(start, end);
840 __reserve_early(start, end, name, 1);
841}
842
843/*
844 * Most early reservations come here.
845 *
846 * We first have drop_overlaps_that_are_ok() drop any pre-existing
847 * 'overlap_ok' ranges, so that we can then reserve this memory
848 * range without risk of panic'ing on an overlapping overlap_ok
849 * early reservation.
850 */
851void __init reserve_early(u64 start, u64 end, char *name)
852{
853 drop_overlaps_that_are_ok(start, end);
854 __reserve_early(start, end, name, 0);
855}
856
857void __init free_early(u64 start, u64 end)
858{
859 struct early_res *r;
860 int i;
861
862 i = find_overlapped_early(start, end);
863 r = &early_res[i];
864 if (i >= MAX_EARLY_RES || r->end != end || r->start != start)
865 panic("free_early on not reserved area: %llx-%llx!",
866 start, end - 1);
867
868 drop_range(i);
869}
870
871void __init early_res_to_bootmem(u64 start, u64 end)
872{
873 int i, count;
874 u64 final_start, final_end;
875
876 count = 0;
877 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++)
878 count++;
879
880 printk(KERN_INFO "(%d early reservations) ==> bootmem\n", count);
881 for (i = 0; i < count; i++) {
882 struct early_res *r = &early_res[i];
883 printk(KERN_INFO " #%d [%010llx - %010llx] %16s", i,
884 r->start, r->end, r->name);
885 final_start = max(start, r->start);
886 final_end = min(end, r->end);
887 if (final_start >= final_end) {
888 printk(KERN_CONT "\n");
889 continue;
890 }
891 printk(KERN_CONT " ==> [%010llx - %010llx]\n",
892 final_start, final_end);
893 reserve_bootmem_generic(final_start, final_end - final_start,
894 BOOTMEM_DEFAULT);
895 }
896}
897
898/* Check for already reserved areas */
899static inline int __init bad_addr(u64 *addrp, u64 size, u64 align)
900{
901 int i;
902 u64 addr = *addrp;
903 int changed = 0;
904 struct early_res *r;
905again:
906 i = find_overlapped_early(addr, addr + size);
907 r = &early_res[i];
908 if (i < MAX_EARLY_RES && r->end) {
909 *addrp = addr = round_up(r->end, align);
910 changed = 1;
911 goto again;
912 }
913 return changed;
914}
915
916/* Check for already reserved areas */
917static inline int __init bad_addr_size(u64 *addrp, u64 *sizep, u64 align)
918{
919 int i;
920 u64 addr = *addrp, last;
921 u64 size = *sizep;
922 int changed = 0;
923again:
924 last = addr + size;
925 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
926 struct early_res *r = &early_res[i];
927 if (last > r->start && addr < r->start) {
928 size = r->start - addr;
929 changed = 1;
930 goto again;
931 }
932 if (last > r->end && addr < r->end) {
933 addr = round_up(r->end, align);
934 size = last - addr;
935 changed = 1;
936 goto again;
937 }
938 if (last <= r->end && addr >= r->start) {
939 (*sizep)++;
940 return 0;
941 }
942 }
943 if (changed) {
944 *addrp = addr;
945 *sizep = size;
946 }
947 return changed;
948}
949
950/*
951 * Find a free area with specified alignment in a specific range.
952 */
953u64 __init find_e820_area(u64 start, u64 end, u64 size, u64 align)
954{
955 int i;
956
957 for (i = 0; i < e820.nr_map; i++) {
958 struct e820entry *ei = &e820.map[i];
959 u64 addr, last;
960 u64 ei_last;
961
962 if (ei->type != E820_RAM)
963 continue;
964 addr = round_up(ei->addr, align);
965 ei_last = ei->addr + ei->size;
966 if (addr < start)
967 addr = round_up(start, align);
968 if (addr >= ei_last)
969 continue;
970 while (bad_addr(&addr, size, align) && addr+size <= ei_last)
971 ;
972 last = addr + size;
973 if (last > ei_last)
974 continue;
975 if (last > end)
976 continue;
977 return addr;
978 }
979 return -1ULL;
980}
981
982/*
983 * Find next free range after *start
984 */
985u64 __init find_e820_area_size(u64 start, u64 *sizep, u64 align)
986{
987 int i;
988
989 for (i = 0; i < e820.nr_map; i++) {
990 struct e820entry *ei = &e820.map[i];
991 u64 addr, last;
992 u64 ei_last;
993
994 if (ei->type != E820_RAM)
995 continue;
996 addr = round_up(ei->addr, align);
997 ei_last = ei->addr + ei->size;
998 if (addr < start)
999 addr = round_up(start, align);
1000 if (addr >= ei_last)
1001 continue;
1002 *sizep = ei_last - addr;
1003 while (bad_addr_size(&addr, sizep, align) &&
1004 addr + *sizep <= ei_last)
1005 ;
1006 last = addr + *sizep;
1007 if (last > ei_last)
1008 continue;
1009 return addr;
1010 }
1011 return -1UL;
1012
1013}
1014
1015/*
1016 * pre allocated 4k and reserved it in e820
1017 */
1018u64 __init early_reserve_e820(u64 startt, u64 sizet, u64 align)
1019{
1020 u64 size = 0;
1021 u64 addr;
1022 u64 start;
1023
1024 start = startt;
1025 while (size < sizet)
1026 start = find_e820_area_size(start, &size, align);
1027
1028 if (size < sizet)
1029 return 0;
1030
1031 addr = round_down(start + size - sizet, align);
1032 e820_update_range(addr, sizet, E820_RAM, E820_RESERVED);
1033 e820_update_range_saved(addr, sizet, E820_RAM, E820_RESERVED);
1034 printk(KERN_INFO "update e820 for early_reserve_e820\n");
1035 update_e820();
1036 update_e820_saved();
1037
1038 return addr;
1039}
1040
1041#ifdef CONFIG_X86_32
1042# ifdef CONFIG_X86_PAE
1043# define MAX_ARCH_PFN (1ULL<<(36-PAGE_SHIFT))
1044# else
1045# define MAX_ARCH_PFN (1ULL<<(32-PAGE_SHIFT))
1046# endif
1047#else /* CONFIG_X86_32 */
1048# define MAX_ARCH_PFN MAXMEM>>PAGE_SHIFT
1049#endif
1050
1051/*
1052 * Find the highest page frame number we have available
1053 */
1054static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type)
1055{
1056 int i;
1057 unsigned long last_pfn = 0;
1058 unsigned long max_arch_pfn = MAX_ARCH_PFN;
1059
1060 for (i = 0; i < e820.nr_map; i++) {
1061 struct e820entry *ei = &e820.map[i];
1062 unsigned long start_pfn;
1063 unsigned long end_pfn;
1064
1065 if (ei->type != type)
1066 continue;
1067
1068 start_pfn = ei->addr >> PAGE_SHIFT;
1069 end_pfn = (ei->addr + ei->size) >> PAGE_SHIFT;
1070
1071 if (start_pfn >= limit_pfn)
1072 continue;
1073 if (end_pfn > limit_pfn) {
1074 last_pfn = limit_pfn;
1075 break;
1076 }
1077 if (end_pfn > last_pfn)
1078 last_pfn = end_pfn;
1079 }
1080
1081 if (last_pfn > max_arch_pfn)
1082 last_pfn = max_arch_pfn;
1083
1084 printk(KERN_INFO "last_pfn = %#lx max_arch_pfn = %#lx\n",
1085 last_pfn, max_arch_pfn);
1086 return last_pfn;
1087}
1088unsigned long __init e820_end_of_ram_pfn(void)
1089{
1090 return e820_end_pfn(MAX_ARCH_PFN, E820_RAM);
1091}
1092
1093unsigned long __init e820_end_of_low_ram_pfn(void)
1094{
1095 return e820_end_pfn(1UL<<(32 - PAGE_SHIFT), E820_RAM);
1096}
1097/*
1098 * Finds an active region in the address range from start_pfn to last_pfn and
1099 * returns its range in ei_startpfn and ei_endpfn for the e820 entry.
1100 */
1101int __init e820_find_active_region(const struct e820entry *ei,
1102 unsigned long start_pfn,
1103 unsigned long last_pfn,
1104 unsigned long *ei_startpfn,
1105 unsigned long *ei_endpfn)
1106{
1107 u64 align = PAGE_SIZE;
1108
1109 *ei_startpfn = round_up(ei->addr, align) >> PAGE_SHIFT;
1110 *ei_endpfn = round_down(ei->addr + ei->size, align) >> PAGE_SHIFT;
1111
1112 /* Skip map entries smaller than a page */
1113 if (*ei_startpfn >= *ei_endpfn)
1114 return 0;
1115
1116 /* Skip if map is outside the node */
1117 if (ei->type != E820_RAM || *ei_endpfn <= start_pfn ||
1118 *ei_startpfn >= last_pfn)
1119 return 0;
1120
1121 /* Check for overlaps */
1122 if (*ei_startpfn < start_pfn)
1123 *ei_startpfn = start_pfn;
1124 if (*ei_endpfn > last_pfn)
1125 *ei_endpfn = last_pfn;
1126
1127 return 1;
1128}
1129
1130/* Walk the e820 map and register active regions within a node */
1131void __init e820_register_active_regions(int nid, unsigned long start_pfn,
1132 unsigned long last_pfn)
1133{
1134 unsigned long ei_startpfn;
1135 unsigned long ei_endpfn;
1136 int i;
1137
1138 for (i = 0; i < e820.nr_map; i++)
1139 if (e820_find_active_region(&e820.map[i],
1140 start_pfn, last_pfn,
1141 &ei_startpfn, &ei_endpfn))
1142 add_active_range(nid, ei_startpfn, ei_endpfn);
1143}
1144
1145/*
1146 * Find the hole size (in bytes) in the memory range.
1147 * @start: starting address of the memory range to scan
1148 * @end: ending address of the memory range to scan
1149 */
1150u64 __init e820_hole_size(u64 start, u64 end)
1151{
1152 unsigned long start_pfn = start >> PAGE_SHIFT;
1153 unsigned long last_pfn = end >> PAGE_SHIFT;
1154 unsigned long ei_startpfn, ei_endpfn, ram = 0;
1155 int i;
1156
1157 for (i = 0; i < e820.nr_map; i++) {
1158 if (e820_find_active_region(&e820.map[i],
1159 start_pfn, last_pfn,
1160 &ei_startpfn, &ei_endpfn))
1161 ram += ei_endpfn - ei_startpfn;
1162 }
1163 return end - start - ((u64)ram << PAGE_SHIFT);
1164}
1165
1166static void early_panic(char *msg)
1167{
1168 early_printk(msg);
1169 panic(msg);
1170}
1171
1172static int userdef __initdata;
1173
1174/* "mem=nopentium" disables the 4MB page tables. */
1175static int __init parse_memopt(char *p)
1176{
1177 u64 mem_size;
1178
1179 if (!p)
1180 return -EINVAL;
1181
1182#ifdef CONFIG_X86_32
1183 if (!strcmp(p, "nopentium")) {
1184 setup_clear_cpu_cap(X86_FEATURE_PSE);
1185 return 0;
1186 }
1187#endif
1188
1189 userdef = 1;
1190 mem_size = memparse(p, &p);
1191 e820_remove_range(mem_size, ULLONG_MAX - mem_size, E820_RAM, 1);
1192
1193 return 0;
1194}
1195early_param("mem", parse_memopt);
1196
1197static int __init parse_memmap_opt(char *p)
1198{
1199 char *oldp;
1200 u64 start_at, mem_size;
1201
1202 if (!p)
1203 return -EINVAL;
1204
1205 if (!strcmp(p, "exactmap")) {
1206#ifdef CONFIG_CRASH_DUMP
1207 /*
1208 * If we are doing a crash dump, we still need to know
1209 * the real mem size before original memory map is
1210 * reset.
1211 */
1212 saved_max_pfn = e820_end_of_ram_pfn();
1213#endif
1214 e820.nr_map = 0;
1215 userdef = 1;
1216 return 0;
1217 }
1218
1219 oldp = p;
1220 mem_size = memparse(p, &p);
1221 if (p == oldp)
1222 return -EINVAL;
1223
1224 userdef = 1;
1225 if (*p == '@') {
1226 start_at = memparse(p+1, &p);
1227 e820_add_region(start_at, mem_size, E820_RAM);
1228 } else if (*p == '#') {
1229 start_at = memparse(p+1, &p);
1230 e820_add_region(start_at, mem_size, E820_ACPI);
1231 } else if (*p == '$') {
1232 start_at = memparse(p+1, &p);
1233 e820_add_region(start_at, mem_size, E820_RESERVED);
1234 } else
1235 e820_remove_range(mem_size, ULLONG_MAX - mem_size, E820_RAM, 1);
1236
1237 return *p == '\0' ? 0 : -EINVAL;
1238}
1239early_param("memmap", parse_memmap_opt);
1240
1241void __init finish_e820_parsing(void)
1242{
1243 if (userdef) {
1244 int nr = e820.nr_map;
1245
1246 if (sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &nr) < 0)
1247 early_panic("Invalid user supplied memory map");
1248 e820.nr_map = nr;
1249
1250 printk(KERN_INFO "user-defined physical RAM map:\n");
1251 e820_print_map("user");
1252 }
1253}
1254
1255static inline const char *e820_type_to_string(int e820_type)
1256{
1257 switch (e820_type) {
1258 case E820_RESERVED_KERN:
1259 case E820_RAM: return "System RAM";
1260 case E820_ACPI: return "ACPI Tables";
1261 case E820_NVS: return "ACPI Non-volatile Storage";
1262 default: return "reserved";
1263 }
1264}
1265
1266/*
1267 * Mark e820 reserved areas as busy for the resource manager.
1268 */
1269void __init e820_reserve_resources(void)
1270{
1271 int i;
1272 struct resource *res;
1273 u64 end;
1274
1275 res = alloc_bootmem_low(sizeof(struct resource) * e820.nr_map);
1276 for (i = 0; i < e820.nr_map; i++) {
1277 end = e820.map[i].addr + e820.map[i].size - 1;
1278#ifndef CONFIG_RESOURCES_64BIT
1279 if (end > 0x100000000ULL) {
1280 res++;
1281 continue;
1282 }
1283#endif
1284 res->name = e820_type_to_string(e820.map[i].type);
1285 res->start = e820.map[i].addr;
1286 res->end = end;
1287
1288 res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
1289 insert_resource(&iomem_resource, res);
1290 res++;
1291 }
1292
1293 for (i = 0; i < e820_saved.nr_map; i++) {
1294 struct e820entry *entry = &e820_saved.map[i];
1295 firmware_map_add_early(entry->addr,
1296 entry->addr + entry->size - 1,
1297 e820_type_to_string(entry->type));
1298 }
1299}
1300
1301/*
1302 * Non-standard memory setup can be specified via this quirk:
1303 */
1304char * (*arch_memory_setup_quirk)(void);
1305
1306char *__init default_machine_specific_memory_setup(void)
1307{
1308 char *who = "BIOS-e820";
1309 int new_nr;
1310 /*
1311 * Try to copy the BIOS-supplied E820-map.
1312 *
1313 * Otherwise fake a memory map; one section from 0k->640k,
1314 * the next section from 1mb->appropriate_mem_k
1315 */
1316 new_nr = boot_params.e820_entries;
1317 sanitize_e820_map(boot_params.e820_map,
1318 ARRAY_SIZE(boot_params.e820_map),
1319 &new_nr);
1320 boot_params.e820_entries = new_nr;
1321 if (append_e820_map(boot_params.e820_map, boot_params.e820_entries)
1322 < 0) {
1323 u64 mem_size;
1324
1325 /* compare results from other methods and take the greater */
1326 if (boot_params.alt_mem_k
1327 < boot_params.screen_info.ext_mem_k) {
1328 mem_size = boot_params.screen_info.ext_mem_k;
1329 who = "BIOS-88";
1330 } else {
1331 mem_size = boot_params.alt_mem_k;
1332 who = "BIOS-e801";
1333 }
1334
1335 e820.nr_map = 0;
1336 e820_add_region(0, LOWMEMSIZE(), E820_RAM);
1337 e820_add_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
1338 }
1339
1340 /* In case someone cares... */
1341 return who;
1342}
1343
1344char *__init __attribute__((weak)) machine_specific_memory_setup(void)
1345{
1346 if (arch_memory_setup_quirk) {
1347 char *who = arch_memory_setup_quirk();
1348
1349 if (who)
1350 return who;
1351 }
1352 return default_machine_specific_memory_setup();
1353}
1354
1355/* Overridden in paravirt.c if CONFIG_PARAVIRT */
1356char * __init __attribute__((weak)) memory_setup(void)
1357{
1358 return machine_specific_memory_setup();
1359}
1360
1361void __init setup_memory_map(void)
1362{
1363 char *who;
1364
1365 who = memory_setup();
1366 memcpy(&e820_saved, &e820, sizeof(struct e820map));
1367 printk(KERN_INFO "BIOS-provided physical RAM map:\n");
1368 e820_print_map(who);
1369}
1370
1371#ifdef CONFIG_X86_64
1372int __init arch_get_ram_range(int slot, u64 *addr, u64 *size)
1373{
1374 int i;
1375
1376 if (slot < 0 || slot >= e820.nr_map)
1377 return -1;
1378 for (i = slot; i < e820.nr_map; i++) {
1379 if (e820.map[i].type != E820_RAM)
1380 continue;
1381 break;
1382 }
1383 if (i == e820.nr_map || e820.map[i].addr > (max_pfn << PAGE_SHIFT))
1384 return -1;
1385 *addr = e820.map[i].addr;
1386 *size = min_t(u64, e820.map[i].size + e820.map[i].addr,
1387 max_pfn << PAGE_SHIFT) - *addr;
1388 return i + 1;
1389}
1390#endif
diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
deleted file mode 100644
index ed733e7cf4e6..000000000000
--- a/arch/x86/kernel/e820_32.c
+++ /dev/null
@@ -1,775 +0,0 @@
1#include <linux/kernel.h>
2#include <linux/types.h>
3#include <linux/init.h>
4#include <linux/bootmem.h>
5#include <linux/ioport.h>
6#include <linux/string.h>
7#include <linux/kexec.h>
8#include <linux/module.h>
9#include <linux/mm.h>
10#include <linux/pfn.h>
11#include <linux/uaccess.h>
12#include <linux/suspend.h>
13
14#include <asm/pgtable.h>
15#include <asm/page.h>
16#include <asm/e820.h>
17#include <asm/setup.h>
18
19struct e820map e820;
20struct change_member {
21 struct e820entry *pbios; /* pointer to original bios entry */
22 unsigned long long addr; /* address for this change point */
23};
24static struct change_member change_point_list[2*E820MAX] __initdata;
25static struct change_member *change_point[2*E820MAX] __initdata;
26static struct e820entry *overlap_list[E820MAX] __initdata;
27static struct e820entry new_bios[E820MAX] __initdata;
28/* For PCI or other memory-mapped resources */
29unsigned long pci_mem_start = 0x10000000;
30#ifdef CONFIG_PCI
31EXPORT_SYMBOL(pci_mem_start);
32#endif
33extern int user_defined_memmap;
34
35static struct resource system_rom_resource = {
36 .name = "System ROM",
37 .start = 0xf0000,
38 .end = 0xfffff,
39 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
40};
41
42static struct resource extension_rom_resource = {
43 .name = "Extension ROM",
44 .start = 0xe0000,
45 .end = 0xeffff,
46 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
47};
48
49static struct resource adapter_rom_resources[] = { {
50 .name = "Adapter ROM",
51 .start = 0xc8000,
52 .end = 0,
53 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
54}, {
55 .name = "Adapter ROM",
56 .start = 0,
57 .end = 0,
58 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
59}, {
60 .name = "Adapter ROM",
61 .start = 0,
62 .end = 0,
63 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
64}, {
65 .name = "Adapter ROM",
66 .start = 0,
67 .end = 0,
68 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
69}, {
70 .name = "Adapter ROM",
71 .start = 0,
72 .end = 0,
73 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
74}, {
75 .name = "Adapter ROM",
76 .start = 0,
77 .end = 0,
78 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
79} };
80
81static struct resource video_rom_resource = {
82 .name = "Video ROM",
83 .start = 0xc0000,
84 .end = 0xc7fff,
85 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
86};
87
88#define ROMSIGNATURE 0xaa55
89
90static int __init romsignature(const unsigned char *rom)
91{
92 const unsigned short * const ptr = (const unsigned short *)rom;
93 unsigned short sig;
94
95 return probe_kernel_address(ptr, sig) == 0 && sig == ROMSIGNATURE;
96}
97
98static int __init romchecksum(const unsigned char *rom, unsigned long length)
99{
100 unsigned char sum, c;
101
102 for (sum = 0; length && probe_kernel_address(rom++, c) == 0; length--)
103 sum += c;
104 return !length && !sum;
105}
106
107static void __init probe_roms(void)
108{
109 const unsigned char *rom;
110 unsigned long start, length, upper;
111 unsigned char c;
112 int i;
113
114 /* video rom */
115 upper = adapter_rom_resources[0].start;
116 for (start = video_rom_resource.start; start < upper; start += 2048) {
117 rom = isa_bus_to_virt(start);
118 if (!romsignature(rom))
119 continue;
120
121 video_rom_resource.start = start;
122
123 if (probe_kernel_address(rom + 2, c) != 0)
124 continue;
125
126 /* 0 < length <= 0x7f * 512, historically */
127 length = c * 512;
128
129 /* if checksum okay, trust length byte */
130 if (length && romchecksum(rom, length))
131 video_rom_resource.end = start + length - 1;
132
133 request_resource(&iomem_resource, &video_rom_resource);
134 break;
135 }
136
137 start = (video_rom_resource.end + 1 + 2047) & ~2047UL;
138 if (start < upper)
139 start = upper;
140
141 /* system rom */
142 request_resource(&iomem_resource, &system_rom_resource);
143 upper = system_rom_resource.start;
144
145 /* check for extension rom (ignore length byte!) */
146 rom = isa_bus_to_virt(extension_rom_resource.start);
147 if (romsignature(rom)) {
148 length = extension_rom_resource.end - extension_rom_resource.start + 1;
149 if (romchecksum(rom, length)) {
150 request_resource(&iomem_resource, &extension_rom_resource);
151 upper = extension_rom_resource.start;
152 }
153 }
154
155 /* check for adapter roms on 2k boundaries */
156 for (i = 0; i < ARRAY_SIZE(adapter_rom_resources) && start < upper; start += 2048) {
157 rom = isa_bus_to_virt(start);
158 if (!romsignature(rom))
159 continue;
160
161 if (probe_kernel_address(rom + 2, c) != 0)
162 continue;
163
164 /* 0 < length <= 0x7f * 512, historically */
165 length = c * 512;
166
167 /* but accept any length that fits if checksum okay */
168 if (!length || start + length > upper || !romchecksum(rom, length))
169 continue;
170
171 adapter_rom_resources[i].start = start;
172 adapter_rom_resources[i].end = start + length - 1;
173 request_resource(&iomem_resource, &adapter_rom_resources[i]);
174
175 start = adapter_rom_resources[i++].end & ~2047UL;
176 }
177}
178
179/*
180 * Request address space for all standard RAM and ROM resources
181 * and also for regions reported as reserved by the e820.
182 */
183void __init init_iomem_resources(struct resource *code_resource,
184 struct resource *data_resource,
185 struct resource *bss_resource)
186{
187 int i;
188
189 probe_roms();
190 for (i = 0; i < e820.nr_map; i++) {
191 struct resource *res;
192#ifndef CONFIG_RESOURCES_64BIT
193 if (e820.map[i].addr + e820.map[i].size > 0x100000000ULL)
194 continue;
195#endif
196 res = kzalloc(sizeof(struct resource), GFP_ATOMIC);
197 switch (e820.map[i].type) {
198 case E820_RAM: res->name = "System RAM"; break;
199 case E820_ACPI: res->name = "ACPI Tables"; break;
200 case E820_NVS: res->name = "ACPI Non-volatile Storage"; break;
201 default: res->name = "reserved";
202 }
203 res->start = e820.map[i].addr;
204 res->end = res->start + e820.map[i].size - 1;
205 res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
206 if (request_resource(&iomem_resource, res)) {
207 kfree(res);
208 continue;
209 }
210 if (e820.map[i].type == E820_RAM) {
211 /*
212 * We don't know which RAM region contains kernel data,
213 * so we try it repeatedly and let the resource manager
214 * test it.
215 */
216 request_resource(res, code_resource);
217 request_resource(res, data_resource);
218 request_resource(res, bss_resource);
219#ifdef CONFIG_KEXEC
220 if (crashk_res.start != crashk_res.end)
221 request_resource(res, &crashk_res);
222#endif
223 }
224 }
225}
226
227#if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
228/**
229 * e820_mark_nosave_regions - Find the ranges of physical addresses that do not
230 * correspond to e820 RAM areas and mark the corresponding pages as nosave for
231 * hibernation.
232 *
233 * This function requires the e820 map to be sorted and without any
234 * overlapping entries and assumes the first e820 area to be RAM.
235 */
236void __init e820_mark_nosave_regions(void)
237{
238 int i;
239 unsigned long pfn;
240
241 pfn = PFN_DOWN(e820.map[0].addr + e820.map[0].size);
242 for (i = 1; i < e820.nr_map; i++) {
243 struct e820entry *ei = &e820.map[i];
244
245 if (pfn < PFN_UP(ei->addr))
246 register_nosave_region(pfn, PFN_UP(ei->addr));
247
248 pfn = PFN_DOWN(ei->addr + ei->size);
249 if (ei->type != E820_RAM)
250 register_nosave_region(PFN_UP(ei->addr), pfn);
251
252 if (pfn >= max_low_pfn)
253 break;
254 }
255}
256#endif
257
258void __init add_memory_region(unsigned long long start,
259 unsigned long long size, int type)
260{
261 int x;
262
263 x = e820.nr_map;
264
265 if (x == E820MAX) {
266 printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
267 return;
268 }
269
270 e820.map[x].addr = start;
271 e820.map[x].size = size;
272 e820.map[x].type = type;
273 e820.nr_map++;
274} /* add_memory_region */
275
276/*
277 * Sanitize the BIOS e820 map.
278 *
279 * Some e820 responses include overlapping entries. The following
280 * replaces the original e820 map with a new one, removing overlaps.
281 *
282 */
283int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map)
284{
285 struct change_member *change_tmp;
286 unsigned long current_type, last_type;
287 unsigned long long last_addr;
288 int chgidx, still_changing;
289 int overlap_entries;
290 int new_bios_entry;
291 int old_nr, new_nr, chg_nr;
292 int i;
293
294 /*
295 Visually we're performing the following (1,2,3,4 = memory types)...
296
297 Sample memory map (w/overlaps):
298 ____22__________________
299 ______________________4_
300 ____1111________________
301 _44_____________________
302 11111111________________
303 ____________________33__
304 ___________44___________
305 __________33333_________
306 ______________22________
307 ___________________2222_
308 _________111111111______
309 _____________________11_
310 _________________4______
311
312 Sanitized equivalent (no overlap):
313 1_______________________
314 _44_____________________
315 ___1____________________
316 ____22__________________
317 ______11________________
318 _________1______________
319 __________3_____________
320 ___________44___________
321 _____________33_________
322 _______________2________
323 ________________1_______
324 _________________4______
325 ___________________2____
326 ____________________33__
327 ______________________4_
328 */
329 /* if there's only one memory region, don't bother */
330 if (*pnr_map < 2) {
331 return -1;
332 }
333
334 old_nr = *pnr_map;
335
336 /* bail out if we find any unreasonable addresses in bios map */
337 for (i=0; i<old_nr; i++)
338 if (biosmap[i].addr + biosmap[i].size < biosmap[i].addr) {
339 return -1;
340 }
341
342 /* create pointers for initial change-point information (for sorting) */
343 for (i=0; i < 2*old_nr; i++)
344 change_point[i] = &change_point_list[i];
345
346 /* record all known change-points (starting and ending addresses),
347 omitting those that are for empty memory regions */
348 chgidx = 0;
349 for (i=0; i < old_nr; i++) {
350 if (biosmap[i].size != 0) {
351 change_point[chgidx]->addr = biosmap[i].addr;
352 change_point[chgidx++]->pbios = &biosmap[i];
353 change_point[chgidx]->addr = biosmap[i].addr + biosmap[i].size;
354 change_point[chgidx++]->pbios = &biosmap[i];
355 }
356 }
357 chg_nr = chgidx; /* true number of change-points */
358
359 /* sort change-point list by memory addresses (low -> high) */
360 still_changing = 1;
361 while (still_changing) {
362 still_changing = 0;
363 for (i=1; i < chg_nr; i++) {
364 /* if <current_addr> > <last_addr>, swap */
365 /* or, if current=<start_addr> & last=<end_addr>, swap */
366 if ((change_point[i]->addr < change_point[i-1]->addr) ||
367 ((change_point[i]->addr == change_point[i-1]->addr) &&
368 (change_point[i]->addr == change_point[i]->pbios->addr) &&
369 (change_point[i-1]->addr != change_point[i-1]->pbios->addr))
370 )
371 {
372 change_tmp = change_point[i];
373 change_point[i] = change_point[i-1];
374 change_point[i-1] = change_tmp;
375 still_changing=1;
376 }
377 }
378 }
379
380 /* create a new bios memory map, removing overlaps */
381 overlap_entries=0; /* number of entries in the overlap table */
382 new_bios_entry=0; /* index for creating new bios map entries */
383 last_type = 0; /* start with undefined memory type */
384 last_addr = 0; /* start with 0 as last starting address */
385 /* loop through change-points, determining affect on the new bios map */
386 for (chgidx=0; chgidx < chg_nr; chgidx++)
387 {
388 /* keep track of all overlapping bios entries */
389 if (change_point[chgidx]->addr == change_point[chgidx]->pbios->addr)
390 {
391 /* add map entry to overlap list (> 1 entry implies an overlap) */
392 overlap_list[overlap_entries++]=change_point[chgidx]->pbios;
393 }
394 else
395 {
396 /* remove entry from list (order independent, so swap with last) */
397 for (i=0; i<overlap_entries; i++)
398 {
399 if (overlap_list[i] == change_point[chgidx]->pbios)
400 overlap_list[i] = overlap_list[overlap_entries-1];
401 }
402 overlap_entries--;
403 }
404 /* if there are overlapping entries, decide which "type" to use */
405 /* (larger value takes precedence -- 1=usable, 2,3,4,4+=unusable) */
406 current_type = 0;
407 for (i=0; i<overlap_entries; i++)
408 if (overlap_list[i]->type > current_type)
409 current_type = overlap_list[i]->type;
410 /* continue building up new bios map based on this information */
411 if (current_type != last_type) {
412 if (last_type != 0) {
413 new_bios[new_bios_entry].size =
414 change_point[chgidx]->addr - last_addr;
415 /* move forward only if the new size was non-zero */
416 if (new_bios[new_bios_entry].size != 0)
417 if (++new_bios_entry >= E820MAX)
418 break; /* no more space left for new bios entries */
419 }
420 if (current_type != 0) {
421 new_bios[new_bios_entry].addr = change_point[chgidx]->addr;
422 new_bios[new_bios_entry].type = current_type;
423 last_addr=change_point[chgidx]->addr;
424 }
425 last_type = current_type;
426 }
427 }
428 new_nr = new_bios_entry; /* retain count for new bios entries */
429
430 /* copy new bios mapping into original location */
431 memcpy(biosmap, new_bios, new_nr*sizeof(struct e820entry));
432 *pnr_map = new_nr;
433
434 return 0;
435}
436
437/*
438 * Copy the BIOS e820 map into a safe place.
439 *
440 * Sanity-check it while we're at it..
441 *
442 * If we're lucky and live on a modern system, the setup code
443 * will have given us a memory map that we can use to properly
444 * set up memory. If we aren't, we'll fake a memory map.
445 *
446 * We check to see that the memory map contains at least 2 elements
447 * before we'll use it, because the detection code in setup.S may
448 * not be perfect and most every PC known to man has two memory
449 * regions: one from 0 to 640k, and one from 1mb up. (The IBM
450 * thinkpad 560x, for example, does not cooperate with the memory
451 * detection code.)
452 */
453int __init copy_e820_map(struct e820entry *biosmap, int nr_map)
454{
455 /* Only one memory region (or negative)? Ignore it */
456 if (nr_map < 2)
457 return -1;
458
459 do {
460 u64 start = biosmap->addr;
461 u64 size = biosmap->size;
462 u64 end = start + size;
463 u32 type = biosmap->type;
464
465 /* Overflow in 64 bits? Ignore the memory map. */
466 if (start > end)
467 return -1;
468
469 add_memory_region(start, size, type);
470 } while (biosmap++, --nr_map);
471
472 return 0;
473}
474
475/*
476 * Find the highest page frame number we have available
477 */
478void __init propagate_e820_map(void)
479{
480 int i;
481
482 max_pfn = 0;
483
484 for (i = 0; i < e820.nr_map; i++) {
485 unsigned long start, end;
486 /* RAM? */
487 if (e820.map[i].type != E820_RAM)
488 continue;
489 start = PFN_UP(e820.map[i].addr);
490 end = PFN_DOWN(e820.map[i].addr + e820.map[i].size);
491 if (start >= end)
492 continue;
493 if (end > max_pfn)
494 max_pfn = end;
495 memory_present(0, start, end);
496 }
497}
498
499/*
500 * Register fully available low RAM pages with the bootmem allocator.
501 */
502void __init register_bootmem_low_pages(unsigned long max_low_pfn)
503{
504 int i;
505
506 for (i = 0; i < e820.nr_map; i++) {
507 unsigned long curr_pfn, last_pfn, size;
508 /*
509 * Reserve usable low memory
510 */
511 if (e820.map[i].type != E820_RAM)
512 continue;
513 /*
514 * We are rounding up the start address of usable memory:
515 */
516 curr_pfn = PFN_UP(e820.map[i].addr);
517 if (curr_pfn >= max_low_pfn)
518 continue;
519 /*
520 * ... and at the end of the usable range downwards:
521 */
522 last_pfn = PFN_DOWN(e820.map[i].addr + e820.map[i].size);
523
524 if (last_pfn > max_low_pfn)
525 last_pfn = max_low_pfn;
526
527 /*
528 * .. finally, did all the rounding and playing
529 * around just make the area go away?
530 */
531 if (last_pfn <= curr_pfn)
532 continue;
533
534 size = last_pfn - curr_pfn;
535 free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(size));
536 }
537}
538
539void __init e820_register_memory(void)
540{
541 unsigned long gapstart, gapsize, round;
542 unsigned long long last;
543 int i;
544
545 /*
546 * Search for the biggest gap in the low 32 bits of the e820
547 * memory space.
548 */
549 last = 0x100000000ull;
550 gapstart = 0x10000000;
551 gapsize = 0x400000;
552 i = e820.nr_map;
553 while (--i >= 0) {
554 unsigned long long start = e820.map[i].addr;
555 unsigned long long end = start + e820.map[i].size;
556
557 /*
558 * Since "last" is at most 4GB, we know we'll
559 * fit in 32 bits if this condition is true
560 */
561 if (last > end) {
562 unsigned long gap = last - end;
563
564 if (gap > gapsize) {
565 gapsize = gap;
566 gapstart = end;
567 }
568 }
569 if (start < last)
570 last = start;
571 }
572
573 /*
574 * See how much we want to round up: start off with
575 * rounding to the next 1MB area.
576 */
577 round = 0x100000;
578 while ((gapsize >> 4) > round)
579 round += round;
580 /* Fun with two's complement */
581 pci_mem_start = (gapstart + round) & -round;
582
583 printk("Allocating PCI resources starting at %08lx (gap: %08lx:%08lx)\n",
584 pci_mem_start, gapstart, gapsize);
585}
586
587void __init print_memory_map(char *who)
588{
589 int i;
590
591 for (i = 0; i < e820.nr_map; i++) {
592 printk(" %s: %016Lx - %016Lx ", who,
593 e820.map[i].addr,
594 e820.map[i].addr + e820.map[i].size);
595 switch (e820.map[i].type) {
596 case E820_RAM: printk("(usable)\n");
597 break;
598 case E820_RESERVED:
599 printk("(reserved)\n");
600 break;
601 case E820_ACPI:
602 printk("(ACPI data)\n");
603 break;
604 case E820_NVS:
605 printk("(ACPI NVS)\n");
606 break;
607 default: printk("type %u\n", e820.map[i].type);
608 break;
609 }
610 }
611}
612
613void __init limit_regions(unsigned long long size)
614{
615 unsigned long long current_addr;
616 int i;
617
618 print_memory_map("limit_regions start");
619 for (i = 0; i < e820.nr_map; i++) {
620 current_addr = e820.map[i].addr + e820.map[i].size;
621 if (current_addr < size)
622 continue;
623
624 if (e820.map[i].type != E820_RAM)
625 continue;
626
627 if (e820.map[i].addr >= size) {
628 /*
629 * This region starts past the end of the
630 * requested size, skip it completely.
631 */
632 e820.nr_map = i;
633 } else {
634 e820.nr_map = i + 1;
635 e820.map[i].size -= current_addr - size;
636 }
637 print_memory_map("limit_regions endfor");
638 return;
639 }
640 print_memory_map("limit_regions endfunc");
641}
642
643/*
644 * This function checks if any part of the range <start,end> is mapped
645 * with type.
646 */
647int
648e820_any_mapped(u64 start, u64 end, unsigned type)
649{
650 int i;
651 for (i = 0; i < e820.nr_map; i++) {
652 const struct e820entry *ei = &e820.map[i];
653 if (type && ei->type != type)
654 continue;
655 if (ei->addr >= end || ei->addr + ei->size <= start)
656 continue;
657 return 1;
658 }
659 return 0;
660}
661EXPORT_SYMBOL_GPL(e820_any_mapped);
662
663 /*
664 * This function checks if the entire range <start,end> is mapped with type.
665 *
666 * Note: this function only works correct if the e820 table is sorted and
667 * not-overlapping, which is the case
668 */
669int __init
670e820_all_mapped(unsigned long s, unsigned long e, unsigned type)
671{
672 u64 start = s;
673 u64 end = e;
674 int i;
675 for (i = 0; i < e820.nr_map; i++) {
676 struct e820entry *ei = &e820.map[i];
677 if (type && ei->type != type)
678 continue;
679 /* is the region (part) in overlap with the current region ?*/
680 if (ei->addr >= end || ei->addr + ei->size <= start)
681 continue;
682 /* if the region is at the beginning of <start,end> we move
683 * start to the end of the region since it's ok until there
684 */
685 if (ei->addr <= start)
686 start = ei->addr + ei->size;
687 /* if start is now at or beyond end, we're done, full
688 * coverage */
689 if (start >= end)
690 return 1; /* we're done */
691 }
692 return 0;
693}
694
695static int __init parse_memmap(char *arg)
696{
697 if (!arg)
698 return -EINVAL;
699
700 if (strcmp(arg, "exactmap") == 0) {
701#ifdef CONFIG_CRASH_DUMP
702 /* If we are doing a crash dump, we
703 * still need to know the real mem
704 * size before original memory map is
705 * reset.
706 */
707 propagate_e820_map();
708 saved_max_pfn = max_pfn;
709#endif
710 e820.nr_map = 0;
711 user_defined_memmap = 1;
712 } else {
713 /* If the user specifies memory size, we
714 * limit the BIOS-provided memory map to
715 * that size. exactmap can be used to specify
716 * the exact map. mem=number can be used to
717 * trim the existing memory map.
718 */
719 unsigned long long start_at, mem_size;
720
721 mem_size = memparse(arg, &arg);
722 if (*arg == '@') {
723 start_at = memparse(arg+1, &arg);
724 add_memory_region(start_at, mem_size, E820_RAM);
725 } else if (*arg == '#') {
726 start_at = memparse(arg+1, &arg);
727 add_memory_region(start_at, mem_size, E820_ACPI);
728 } else if (*arg == '$') {
729 start_at = memparse(arg+1, &arg);
730 add_memory_region(start_at, mem_size, E820_RESERVED);
731 } else {
732 limit_regions(mem_size);
733 user_defined_memmap = 1;
734 }
735 }
736 return 0;
737}
738early_param("memmap", parse_memmap);
739void __init update_memory_range(u64 start, u64 size, unsigned old_type,
740 unsigned new_type)
741{
742 int i;
743
744 BUG_ON(old_type == new_type);
745
746 for (i = 0; i < e820.nr_map; i++) {
747 struct e820entry *ei = &e820.map[i];
748 u64 final_start, final_end;
749 if (ei->type != old_type)
750 continue;
751 /* totally covered? */
752 if (ei->addr >= start && ei->size <= size) {
753 ei->type = new_type;
754 continue;
755 }
756 /* partially covered */
757 final_start = max(start, ei->addr);
758 final_end = min(start + size, ei->addr + ei->size);
759 if (final_start >= final_end)
760 continue;
761 add_memory_region(final_start, final_end - final_start,
762 new_type);
763 }
764}
765void __init update_e820(void)
766{
767 u8 nr_map;
768
769 nr_map = e820.nr_map;
770 if (sanitize_e820_map(e820.map, &nr_map))
771 return;
772 e820.nr_map = nr_map;
773 printk(KERN_INFO "modified physical RAM map:\n");
774 print_memory_map("modified");
775}
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
deleted file mode 100644
index 124480c0008d..000000000000
--- a/arch/x86/kernel/e820_64.c
+++ /dev/null
@@ -1,952 +0,0 @@
1/*
2 * Handle the memory map.
3 * The functions here do the job until bootmem takes over.
4 *
5 * Getting sanitize_e820_map() in sync with i386 version by applying change:
6 * - Provisions for empty E820 memory regions (reported by certain BIOSes).
7 * Alex Achenbach <xela@slit.de>, December 2002.
8 * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
9 *
10 */
11#include <linux/kernel.h>
12#include <linux/types.h>
13#include <linux/init.h>
14#include <linux/bootmem.h>
15#include <linux/ioport.h>
16#include <linux/string.h>
17#include <linux/kexec.h>
18#include <linux/module.h>
19#include <linux/mm.h>
20#include <linux/suspend.h>
21#include <linux/pfn.h>
22
23#include <asm/pgtable.h>
24#include <asm/page.h>
25#include <asm/e820.h>
26#include <asm/proto.h>
27#include <asm/setup.h>
28#include <asm/sections.h>
29#include <asm/kdebug.h>
30#include <asm/trampoline.h>
31
32struct e820map e820;
33
34/*
35 * PFN of last memory page.
36 */
37unsigned long end_pfn;
38
39/*
40 * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
41 * The direct mapping extends to max_pfn_mapped, so that we can directly access
42 * apertures, ACPI and other tables without having to play with fixmaps.
43 */
44unsigned long max_pfn_mapped;
45
46/*
47 * Last pfn which the user wants to use.
48 */
49static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
50
51/*
52 * Early reserved memory areas.
53 */
54#define MAX_EARLY_RES 20
55
56struct early_res {
57 unsigned long start, end;
58 char name[16];
59};
60static struct early_res early_res[MAX_EARLY_RES] __initdata = {
61 { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */
62#ifdef CONFIG_X86_TRAMPOLINE
63 { TRAMPOLINE_BASE, TRAMPOLINE_BASE + 2 * PAGE_SIZE, "TRAMPOLINE" },
64#endif
65 {}
66};
67
68void __init reserve_early(unsigned long start, unsigned long end, char *name)
69{
70 int i;
71 struct early_res *r;
72 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
73 r = &early_res[i];
74 if (end > r->start && start < r->end)
75 panic("Overlapping early reservations %lx-%lx %s to %lx-%lx %s\n",
76 start, end - 1, name?name:"", r->start, r->end - 1, r->name);
77 }
78 if (i >= MAX_EARLY_RES)
79 panic("Too many early reservations");
80 r = &early_res[i];
81 r->start = start;
82 r->end = end;
83 if (name)
84 strncpy(r->name, name, sizeof(r->name) - 1);
85}
86
87void __init free_early(unsigned long start, unsigned long end)
88{
89 struct early_res *r;
90 int i, j;
91
92 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
93 r = &early_res[i];
94 if (start == r->start && end == r->end)
95 break;
96 }
97 if (i >= MAX_EARLY_RES || !early_res[i].end)
98 panic("free_early on not reserved area: %lx-%lx!", start, end);
99
100 for (j = i + 1; j < MAX_EARLY_RES && early_res[j].end; j++)
101 ;
102
103 memmove(&early_res[i], &early_res[i + 1],
104 (j - 1 - i) * sizeof(struct early_res));
105
106 early_res[j - 1].end = 0;
107}
108
109void __init early_res_to_bootmem(unsigned long start, unsigned long end)
110{
111 int i;
112 unsigned long final_start, final_end;
113 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
114 struct early_res *r = &early_res[i];
115 final_start = max(start, r->start);
116 final_end = min(end, r->end);
117 if (final_start >= final_end)
118 continue;
119 printk(KERN_INFO " early res: %d [%lx-%lx] %s\n", i,
120 final_start, final_end - 1, r->name);
121 reserve_bootmem_generic(final_start, final_end - final_start);
122 }
123}
124
125/* Check for already reserved areas */
126static inline int __init
127bad_addr(unsigned long *addrp, unsigned long size, unsigned long align)
128{
129 int i;
130 unsigned long addr = *addrp, last;
131 int changed = 0;
132again:
133 last = addr + size;
134 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
135 struct early_res *r = &early_res[i];
136 if (last >= r->start && addr < r->end) {
137 *addrp = addr = round_up(r->end, align);
138 changed = 1;
139 goto again;
140 }
141 }
142 return changed;
143}
144
145/* Check for already reserved areas */
146static inline int __init
147bad_addr_size(unsigned long *addrp, unsigned long *sizep, unsigned long align)
148{
149 int i;
150 unsigned long addr = *addrp, last;
151 unsigned long size = *sizep;
152 int changed = 0;
153again:
154 last = addr + size;
155 for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
156 struct early_res *r = &early_res[i];
157 if (last > r->start && addr < r->start) {
158 size = r->start - addr;
159 changed = 1;
160 goto again;
161 }
162 if (last > r->end && addr < r->end) {
163 addr = round_up(r->end, align);
164 size = last - addr;
165 changed = 1;
166 goto again;
167 }
168 if (last <= r->end && addr >= r->start) {
169 (*sizep)++;
170 return 0;
171 }
172 }
173 if (changed) {
174 *addrp = addr;
175 *sizep = size;
176 }
177 return changed;
178}
179/*
180 * This function checks if any part of the range <start,end> is mapped
181 * with type.
182 */
183int
184e820_any_mapped(unsigned long start, unsigned long end, unsigned type)
185{
186 int i;
187
188 for (i = 0; i < e820.nr_map; i++) {
189 struct e820entry *ei = &e820.map[i];
190
191 if (type && ei->type != type)
192 continue;
193 if (ei->addr >= end || ei->addr + ei->size <= start)
194 continue;
195 return 1;
196 }
197 return 0;
198}
199EXPORT_SYMBOL_GPL(e820_any_mapped);
200
201/*
202 * This function checks if the entire range <start,end> is mapped with type.
203 *
204 * Note: this function only works correct if the e820 table is sorted and
205 * not-overlapping, which is the case
206 */
207int __init e820_all_mapped(unsigned long start, unsigned long end,
208 unsigned type)
209{
210 int i;
211
212 for (i = 0; i < e820.nr_map; i++) {
213 struct e820entry *ei = &e820.map[i];
214
215 if (type && ei->type != type)
216 continue;
217 /* is the region (part) in overlap with the current region ?*/
218 if (ei->addr >= end || ei->addr + ei->size <= start)
219 continue;
220
221 /* if the region is at the beginning of <start,end> we move
222 * start to the end of the region since it's ok until there
223 */
224 if (ei->addr <= start)
225 start = ei->addr + ei->size;
226 /*
227 * if start is now at or beyond end, we're done, full
228 * coverage
229 */
230 if (start >= end)
231 return 1;
232 }
233 return 0;
234}
235
236/*
237 * Find a free area with specified alignment in a specific range.
238 */
239unsigned long __init find_e820_area(unsigned long start, unsigned long end,
240 unsigned long size, unsigned long align)
241{
242 int i;
243
244 for (i = 0; i < e820.nr_map; i++) {
245 struct e820entry *ei = &e820.map[i];
246 unsigned long addr, last;
247 unsigned long ei_last;
248
249 if (ei->type != E820_RAM)
250 continue;
251 addr = round_up(ei->addr, align);
252 ei_last = ei->addr + ei->size;
253 if (addr < start)
254 addr = round_up(start, align);
255 if (addr >= ei_last)
256 continue;
257 while (bad_addr(&addr, size, align) && addr+size <= ei_last)
258 ;
259 last = addr + size;
260 if (last > ei_last)
261 continue;
262 if (last > end)
263 continue;
264 return addr;
265 }
266 return -1UL;
267}
268
269/*
270 * Find next free range after *start
271 */
272unsigned long __init find_e820_area_size(unsigned long start,
273 unsigned long *sizep,
274 unsigned long align)
275{
276 int i;
277
278 for (i = 0; i < e820.nr_map; i++) {
279 struct e820entry *ei = &e820.map[i];
280 unsigned long addr, last;
281 unsigned long ei_last;
282
283 if (ei->type != E820_RAM)
284 continue;
285 addr = round_up(ei->addr, align);
286 ei_last = ei->addr + ei->size;
287 if (addr < start)
288 addr = round_up(start, align);
289 if (addr >= ei_last)
290 continue;
291 *sizep = ei_last - addr;
292 while (bad_addr_size(&addr, sizep, align) &&
293 addr + *sizep <= ei_last)
294 ;
295 last = addr + *sizep;
296 if (last > ei_last)
297 continue;
298 return addr;
299 }
300 return -1UL;
301
302}
303/*
304 * Find the highest page frame number we have available
305 */
306unsigned long __init e820_end_of_ram(void)
307{
308 unsigned long end_pfn;
309
310 end_pfn = find_max_pfn_with_active_regions();
311
312 if (end_pfn > max_pfn_mapped)
313 max_pfn_mapped = end_pfn;
314 if (max_pfn_mapped > MAXMEM>>PAGE_SHIFT)
315 max_pfn_mapped = MAXMEM>>PAGE_SHIFT;
316 if (end_pfn > end_user_pfn)
317 end_pfn = end_user_pfn;
318 if (end_pfn > max_pfn_mapped)
319 end_pfn = max_pfn_mapped;
320
321 printk(KERN_INFO "max_pfn_mapped = %lu\n", max_pfn_mapped);
322 return end_pfn;
323}
324
325/*
326 * Mark e820 reserved areas as busy for the resource manager.
327 */
328void __init e820_reserve_resources(void)
329{
330 int i;
331 struct resource *res;
332
333 res = alloc_bootmem_low(sizeof(struct resource) * e820.nr_map);
334 for (i = 0; i < e820.nr_map; i++) {
335 switch (e820.map[i].type) {
336 case E820_RAM: res->name = "System RAM"; break;
337 case E820_ACPI: res->name = "ACPI Tables"; break;
338 case E820_NVS: res->name = "ACPI Non-volatile Storage"; break;
339 default: res->name = "reserved";
340 }
341 res->start = e820.map[i].addr;
342 res->end = res->start + e820.map[i].size - 1;
343 res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
344 insert_resource(&iomem_resource, res);
345 res++;
346 }
347}
348
349/*
350 * Find the ranges of physical addresses that do not correspond to
351 * e820 RAM areas and mark the corresponding pages as nosave for software
352 * suspend and suspend to RAM.
353 *
354 * This function requires the e820 map to be sorted and without any
355 * overlapping entries and assumes the first e820 area to be RAM.
356 */
357void __init e820_mark_nosave_regions(void)
358{
359 int i;
360 unsigned long paddr;
361
362 paddr = round_down(e820.map[0].addr + e820.map[0].size, PAGE_SIZE);
363 for (i = 1; i < e820.nr_map; i++) {
364 struct e820entry *ei = &e820.map[i];
365
366 if (paddr < ei->addr)
367 register_nosave_region(PFN_DOWN(paddr),
368 PFN_UP(ei->addr));
369
370 paddr = round_down(ei->addr + ei->size, PAGE_SIZE);
371 if (ei->type != E820_RAM)
372 register_nosave_region(PFN_UP(ei->addr),
373 PFN_DOWN(paddr));
374
375 if (paddr >= (end_pfn << PAGE_SHIFT))
376 break;
377 }
378}
379
380/*
381 * Finds an active region in the address range from start_pfn to end_pfn and
382 * returns its range in ei_startpfn and ei_endpfn for the e820 entry.
383 */
384static int __init e820_find_active_region(const struct e820entry *ei,
385 unsigned long start_pfn,
386 unsigned long end_pfn,
387 unsigned long *ei_startpfn,
388 unsigned long *ei_endpfn)
389{
390 *ei_startpfn = round_up(ei->addr, PAGE_SIZE) >> PAGE_SHIFT;
391 *ei_endpfn = round_down(ei->addr + ei->size, PAGE_SIZE) >> PAGE_SHIFT;
392
393 /* Skip map entries smaller than a page */
394 if (*ei_startpfn >= *ei_endpfn)
395 return 0;
396
397 /* Check if max_pfn_mapped should be updated */
398 if (ei->type != E820_RAM && *ei_endpfn > max_pfn_mapped)
399 max_pfn_mapped = *ei_endpfn;
400
401 /* Skip if map is outside the node */
402 if (ei->type != E820_RAM || *ei_endpfn <= start_pfn ||
403 *ei_startpfn >= end_pfn)
404 return 0;
405
406 /* Check for overlaps */
407 if (*ei_startpfn < start_pfn)
408 *ei_startpfn = start_pfn;
409 if (*ei_endpfn > end_pfn)
410 *ei_endpfn = end_pfn;
411
412 /* Obey end_user_pfn to save on memmap */
413 if (*ei_startpfn >= end_user_pfn)
414 return 0;
415 if (*ei_endpfn > end_user_pfn)
416 *ei_endpfn = end_user_pfn;
417
418 return 1;
419}
420
421/* Walk the e820 map and register active regions within a node */
422void __init
423e820_register_active_regions(int nid, unsigned long start_pfn,
424 unsigned long end_pfn)
425{
426 unsigned long ei_startpfn;
427 unsigned long ei_endpfn;
428 int i;
429
430 for (i = 0; i < e820.nr_map; i++)
431 if (e820_find_active_region(&e820.map[i],
432 start_pfn, end_pfn,
433 &ei_startpfn, &ei_endpfn))
434 add_active_range(nid, ei_startpfn, ei_endpfn);
435}
436
437/*
438 * Add a memory region to the kernel e820 map.
439 */
440void __init add_memory_region(unsigned long start, unsigned long size, int type)
441{
442 int x = e820.nr_map;
443
444 if (x == E820MAX) {
445 printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
446 return;
447 }
448
449 e820.map[x].addr = start;
450 e820.map[x].size = size;
451 e820.map[x].type = type;
452 e820.nr_map++;
453}
454
455/*
456 * Find the hole size (in bytes) in the memory range.
457 * @start: starting address of the memory range to scan
458 * @end: ending address of the memory range to scan
459 */
460unsigned long __init e820_hole_size(unsigned long start, unsigned long end)
461{
462 unsigned long start_pfn = start >> PAGE_SHIFT;
463 unsigned long end_pfn = end >> PAGE_SHIFT;
464 unsigned long ei_startpfn, ei_endpfn, ram = 0;
465 int i;
466
467 for (i = 0; i < e820.nr_map; i++) {
468 if (e820_find_active_region(&e820.map[i],
469 start_pfn, end_pfn,
470 &ei_startpfn, &ei_endpfn))
471 ram += ei_endpfn - ei_startpfn;
472 }
473 return end - start - (ram << PAGE_SHIFT);
474}
475
476static void __init e820_print_map(char *who)
477{
478 int i;
479
480 for (i = 0; i < e820.nr_map; i++) {
481 printk(KERN_INFO " %s: %016Lx - %016Lx ", who,
482 (unsigned long long) e820.map[i].addr,
483 (unsigned long long)
484 (e820.map[i].addr + e820.map[i].size));
485 switch (e820.map[i].type) {
486 case E820_RAM:
487 printk(KERN_CONT "(usable)\n");
488 break;
489 case E820_RESERVED:
490 printk(KERN_CONT "(reserved)\n");
491 break;
492 case E820_ACPI:
493 printk(KERN_CONT "(ACPI data)\n");
494 break;
495 case E820_NVS:
496 printk(KERN_CONT "(ACPI NVS)\n");
497 break;
498 default:
499 printk(KERN_CONT "type %u\n", e820.map[i].type);
500 break;
501 }
502 }
503}
504
505/*
506 * Sanitize the BIOS e820 map.
507 *
508 * Some e820 responses include overlapping entries. The following
509 * replaces the original e820 map with a new one, removing overlaps.
510 *
511 */
512static int __init sanitize_e820_map(struct e820entry *biosmap, char *pnr_map)
513{
514 struct change_member {
515 struct e820entry *pbios; /* pointer to original bios entry */
516 unsigned long long addr; /* address for this change point */
517 };
518 static struct change_member change_point_list[2*E820MAX] __initdata;
519 static struct change_member *change_point[2*E820MAX] __initdata;
520 static struct e820entry *overlap_list[E820MAX] __initdata;
521 static struct e820entry new_bios[E820MAX] __initdata;
522 struct change_member *change_tmp;
523 unsigned long current_type, last_type;
524 unsigned long long last_addr;
525 int chgidx, still_changing;
526 int overlap_entries;
527 int new_bios_entry;
528 int old_nr, new_nr, chg_nr;
529 int i;
530
531 /*
532 Visually we're performing the following
533 (1,2,3,4 = memory types)...
534
535 Sample memory map (w/overlaps):
536 ____22__________________
537 ______________________4_
538 ____1111________________
539 _44_____________________
540 11111111________________
541 ____________________33__
542 ___________44___________
543 __________33333_________
544 ______________22________
545 ___________________2222_
546 _________111111111______
547 _____________________11_
548 _________________4______
549
550 Sanitized equivalent (no overlap):
551 1_______________________
552 _44_____________________
553 ___1____________________
554 ____22__________________
555 ______11________________
556 _________1______________
557 __________3_____________
558 ___________44___________
559 _____________33_________
560 _______________2________
561 ________________1_______
562 _________________4______
563 ___________________2____
564 ____________________33__
565 ______________________4_
566 */
567
568 /* if there's only one memory region, don't bother */
569 if (*pnr_map < 2)
570 return -1;
571
572 old_nr = *pnr_map;
573
574 /* bail out if we find any unreasonable addresses in bios map */
575 for (i = 0; i < old_nr; i++)
576 if (biosmap[i].addr + biosmap[i].size < biosmap[i].addr)
577 return -1;
578
579 /* create pointers for initial change-point information (for sorting) */
580 for (i = 0; i < 2 * old_nr; i++)
581 change_point[i] = &change_point_list[i];
582
583 /* record all known change-points (starting and ending addresses),
584 omitting those that are for empty memory regions */
585 chgidx = 0;
586 for (i = 0; i < old_nr; i++) {
587 if (biosmap[i].size != 0) {
588 change_point[chgidx]->addr = biosmap[i].addr;
589 change_point[chgidx++]->pbios = &biosmap[i];
590 change_point[chgidx]->addr = biosmap[i].addr +
591 biosmap[i].size;
592 change_point[chgidx++]->pbios = &biosmap[i];
593 }
594 }
595 chg_nr = chgidx;
596
597 /* sort change-point list by memory addresses (low -> high) */
598 still_changing = 1;
599 while (still_changing) {
600 still_changing = 0;
601 for (i = 1; i < chg_nr; i++) {
602 unsigned long long curaddr, lastaddr;
603 unsigned long long curpbaddr, lastpbaddr;
604
605 curaddr = change_point[i]->addr;
606 lastaddr = change_point[i - 1]->addr;
607 curpbaddr = change_point[i]->pbios->addr;
608 lastpbaddr = change_point[i - 1]->pbios->addr;
609
610 /*
611 * swap entries, when:
612 *
613 * curaddr > lastaddr or
614 * curaddr == lastaddr and curaddr == curpbaddr and
615 * lastaddr != lastpbaddr
616 */
617 if (curaddr < lastaddr ||
618 (curaddr == lastaddr && curaddr == curpbaddr &&
619 lastaddr != lastpbaddr)) {
620 change_tmp = change_point[i];
621 change_point[i] = change_point[i-1];
622 change_point[i-1] = change_tmp;
623 still_changing = 1;
624 }
625 }
626 }
627
628 /* create a new bios memory map, removing overlaps */
629 overlap_entries = 0; /* number of entries in the overlap table */
630 new_bios_entry = 0; /* index for creating new bios map entries */
631 last_type = 0; /* start with undefined memory type */
632 last_addr = 0; /* start with 0 as last starting address */
633
634 /* loop through change-points, determining affect on the new bios map */
635 for (chgidx = 0; chgidx < chg_nr; chgidx++) {
636 /* keep track of all overlapping bios entries */
637 if (change_point[chgidx]->addr ==
638 change_point[chgidx]->pbios->addr) {
639 /*
640 * add map entry to overlap list (> 1 entry
641 * implies an overlap)
642 */
643 overlap_list[overlap_entries++] =
644 change_point[chgidx]->pbios;
645 } else {
646 /*
647 * remove entry from list (order independent,
648 * so swap with last)
649 */
650 for (i = 0; i < overlap_entries; i++) {
651 if (overlap_list[i] ==
652 change_point[chgidx]->pbios)
653 overlap_list[i] =
654 overlap_list[overlap_entries-1];
655 }
656 overlap_entries--;
657 }
658 /*
659 * if there are overlapping entries, decide which
660 * "type" to use (larger value takes precedence --
661 * 1=usable, 2,3,4,4+=unusable)
662 */
663 current_type = 0;
664 for (i = 0; i < overlap_entries; i++)
665 if (overlap_list[i]->type > current_type)
666 current_type = overlap_list[i]->type;
667 /*
668 * continue building up new bios map based on this
669 * information
670 */
671 if (current_type != last_type) {
672 if (last_type != 0) {
673 new_bios[new_bios_entry].size =
674 change_point[chgidx]->addr - last_addr;
675 /*
676 * move forward only if the new size
677 * was non-zero
678 */
679 if (new_bios[new_bios_entry].size != 0)
680 /*
681 * no more space left for new
682 * bios entries ?
683 */
684 if (++new_bios_entry >= E820MAX)
685 break;
686 }
687 if (current_type != 0) {
688 new_bios[new_bios_entry].addr =
689 change_point[chgidx]->addr;
690 new_bios[new_bios_entry].type = current_type;
691 last_addr = change_point[chgidx]->addr;
692 }
693 last_type = current_type;
694 }
695 }
696 /* retain count for new bios entries */
697 new_nr = new_bios_entry;
698
699 /* copy new bios mapping into original location */
700 memcpy(biosmap, new_bios, new_nr * sizeof(struct e820entry));
701 *pnr_map = new_nr;
702
703 return 0;
704}
705
706/*
707 * Copy the BIOS e820 map into a safe place.
708 *
709 * Sanity-check it while we're at it..
710 *
711 * If we're lucky and live on a modern system, the setup code
712 * will have given us a memory map that we can use to properly
713 * set up memory. If we aren't, we'll fake a memory map.
714 */
715static int __init copy_e820_map(struct e820entry *biosmap, int nr_map)
716{
717 /* Only one memory region (or negative)? Ignore it */
718 if (nr_map < 2)
719 return -1;
720
721 do {
722 u64 start = biosmap->addr;
723 u64 size = biosmap->size;
724 u64 end = start + size;
725 u32 type = biosmap->type;
726
727 /* Overflow in 64 bits? Ignore the memory map. */
728 if (start > end)
729 return -1;
730
731 add_memory_region(start, size, type);
732 } while (biosmap++, --nr_map);
733 return 0;
734}
735
736static void early_panic(char *msg)
737{
738 early_printk(msg);
739 panic(msg);
740}
741
742/* We're not void only for x86 32-bit compat */
743char * __init machine_specific_memory_setup(void)
744{
745 char *who = "BIOS-e820";
746 /*
747 * Try to copy the BIOS-supplied E820-map.
748 *
749 * Otherwise fake a memory map; one section from 0k->640k,
750 * the next section from 1mb->appropriate_mem_k
751 */
752 sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
753 if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries) < 0)
754 early_panic("Cannot find a valid memory map");
755 printk(KERN_INFO "BIOS-provided physical RAM map:\n");
756 e820_print_map(who);
757
758 /* In case someone cares... */
759 return who;
760}
761
762static int __init parse_memopt(char *p)
763{
764 if (!p)
765 return -EINVAL;
766 end_user_pfn = memparse(p, &p);
767 end_user_pfn >>= PAGE_SHIFT;
768 return 0;
769}
770early_param("mem", parse_memopt);
771
772static int userdef __initdata;
773
774static int __init parse_memmap_opt(char *p)
775{
776 char *oldp;
777 unsigned long long start_at, mem_size;
778
779 if (!strcmp(p, "exactmap")) {
780#ifdef CONFIG_CRASH_DUMP
781 /*
782 * If we are doing a crash dump, we still need to know
783 * the real mem size before original memory map is
784 * reset.
785 */
786 e820_register_active_regions(0, 0, -1UL);
787 saved_max_pfn = e820_end_of_ram();
788 remove_all_active_ranges();
789#endif
790 max_pfn_mapped = 0;
791 e820.nr_map = 0;
792 userdef = 1;
793 return 0;
794 }
795
796 oldp = p;
797 mem_size = memparse(p, &p);
798 if (p == oldp)
799 return -EINVAL;
800
801 userdef = 1;
802 if (*p == '@') {
803 start_at = memparse(p+1, &p);
804 add_memory_region(start_at, mem_size, E820_RAM);
805 } else if (*p == '#') {
806 start_at = memparse(p+1, &p);
807 add_memory_region(start_at, mem_size, E820_ACPI);
808 } else if (*p == '$') {
809 start_at = memparse(p+1, &p);
810 add_memory_region(start_at, mem_size, E820_RESERVED);
811 } else {
812 end_user_pfn = (mem_size >> PAGE_SHIFT);
813 }
814 return *p == '\0' ? 0 : -EINVAL;
815}
816early_param("memmap", parse_memmap_opt);
817
818void __init finish_e820_parsing(void)
819{
820 if (userdef) {
821 char nr = e820.nr_map;
822
823 if (sanitize_e820_map(e820.map, &nr) < 0)
824 early_panic("Invalid user supplied memory map");
825 e820.nr_map = nr;
826
827 printk(KERN_INFO "user-defined physical RAM map:\n");
828 e820_print_map("user");
829 }
830}
831
832void __init update_memory_range(u64 start, u64 size, unsigned old_type,
833 unsigned new_type)
834{
835 int i;
836
837 BUG_ON(old_type == new_type);
838
839 for (i = 0; i < e820.nr_map; i++) {
840 struct e820entry *ei = &e820.map[i];
841 u64 final_start, final_end;
842 if (ei->type != old_type)
843 continue;
844 /* totally covered? */
845 if (ei->addr >= start && ei->size <= size) {
846 ei->type = new_type;
847 continue;
848 }
849 /* partially covered */
850 final_start = max(start, ei->addr);
851 final_end = min(start + size, ei->addr + ei->size);
852 if (final_start >= final_end)
853 continue;
854 add_memory_region(final_start, final_end - final_start,
855 new_type);
856 }
857}
858
859void __init update_e820(void)
860{
861 u8 nr_map;
862
863 nr_map = e820.nr_map;
864 if (sanitize_e820_map(e820.map, &nr_map))
865 return;
866 e820.nr_map = nr_map;
867 printk(KERN_INFO "modified physical RAM map:\n");
868 e820_print_map("modified");
869}
870
871unsigned long pci_mem_start = 0xaeedbabe;
872EXPORT_SYMBOL(pci_mem_start);
873
874/*
875 * Search for the biggest gap in the low 32 bits of the e820
876 * memory space. We pass this space to PCI to assign MMIO resources
877 * for hotplug or unconfigured devices in.
878 * Hopefully the BIOS let enough space left.
879 */
880__init void e820_setup_gap(void)
881{
882 unsigned long gapstart, gapsize, round;
883 unsigned long last;
884 int i;
885 int found = 0;
886
887 last = 0x100000000ull;
888 gapstart = 0x10000000;
889 gapsize = 0x400000;
890 i = e820.nr_map;
891 while (--i >= 0) {
892 unsigned long long start = e820.map[i].addr;
893 unsigned long long end = start + e820.map[i].size;
894
895 /*
896 * Since "last" is at most 4GB, we know we'll
897 * fit in 32 bits if this condition is true
898 */
899 if (last > end) {
900 unsigned long gap = last - end;
901
902 if (gap > gapsize) {
903 gapsize = gap;
904 gapstart = end;
905 found = 1;
906 }
907 }
908 if (start < last)
909 last = start;
910 }
911
912 if (!found) {
913 gapstart = (end_pfn << PAGE_SHIFT) + 1024*1024;
914 printk(KERN_ERR "PCI: Warning: Cannot find a gap in the 32bit "
915 "address range\n"
916 KERN_ERR "PCI: Unassigned devices with 32bit resource "
917 "registers may break!\n");
918 }
919
920 /*
921 * See how much we want to round up: start off with
922 * rounding to the next 1MB area.
923 */
924 round = 0x100000;
925 while ((gapsize >> 4) > round)
926 round += round;
927 /* Fun with two's complement */
928 pci_mem_start = (gapstart + round) & -round;
929
930 printk(KERN_INFO
931 "Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
932 pci_mem_start, gapstart, gapsize);
933}
934
935int __init arch_get_ram_range(int slot, u64 *addr, u64 *size)
936{
937 int i;
938
939 if (slot < 0 || slot >= e820.nr_map)
940 return -1;
941 for (i = slot; i < e820.nr_map; i++) {
942 if (e820.map[i].type != E820_RAM)
943 continue;
944 break;
945 }
946 if (i == e820.nr_map || e820.map[i].addr > (max_pfn << PAGE_SHIFT))
947 return -1;
948 *addr = e820.map[i].addr;
949 *size = min_t(u64, e820.map[i].size + e820.map[i].addr,
950 max_pfn << PAGE_SHIFT) - *addr;
951 return i + 1;
952}
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 9f51e1ea9e82..a0e11c0cc872 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -50,7 +50,7 @@ static void __init fix_hypertransport_config(int num, int slot, int func)
50static void __init via_bugs(int num, int slot, int func) 50static void __init via_bugs(int num, int slot, int func)
51{ 51{
52#ifdef CONFIG_GART_IOMMU 52#ifdef CONFIG_GART_IOMMU
53 if ((end_pfn > MAX_DMA32_PFN || force_iommu) && 53 if ((max_pfn > MAX_DMA32_PFN || force_iommu) &&
54 !gart_iommu_aperture_allowed) { 54 !gart_iommu_aperture_allowed) {
55 printk(KERN_INFO 55 printk(KERN_INFO
56 "Looks like a VIA chipset. Disabling IOMMU." 56 "Looks like a VIA chipset. Disabling IOMMU."
@@ -98,17 +98,6 @@ static void __init nvidia_bugs(int num, int slot, int func)
98 98
99} 99}
100 100
101static void __init ati_bugs(int num, int slot, int func)
102{
103#ifdef CONFIG_X86_IO_APIC
104 if (timer_over_8254 == 1) {
105 timer_over_8254 = 0;
106 printk(KERN_INFO
107 "ATI board detected. Disabling timer routing over 8254.\n");
108 }
109#endif
110}
111
112#define QFLAG_APPLY_ONCE 0x1 101#define QFLAG_APPLY_ONCE 0x1
113#define QFLAG_APPLIED 0x2 102#define QFLAG_APPLIED 0x2
114#define QFLAG_DONE (QFLAG_APPLY_ONCE|QFLAG_APPLIED) 103#define QFLAG_DONE (QFLAG_APPLY_ONCE|QFLAG_APPLIED)
@@ -126,14 +115,23 @@ static struct chipset early_qrk[] __initdata = {
126 PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs }, 115 PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
127 { PCI_VENDOR_ID_VIA, PCI_ANY_ID, 116 { PCI_VENDOR_ID_VIA, PCI_ANY_ID,
128 PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, via_bugs }, 117 PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, via_bugs },
129 { PCI_VENDOR_ID_ATI, PCI_ANY_ID,
130 PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, ati_bugs },
131 { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB, 118 { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB,
132 PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, fix_hypertransport_config }, 119 PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, fix_hypertransport_config },
133 {} 120 {}
134}; 121};
135 122
136static void __init check_dev_quirk(int num, int slot, int func) 123/**
124 * check_dev_quirk - apply early quirks to a given PCI device
125 * @num: bus number
126 * @slot: slot number
127 * @func: PCI function
128 *
129 * Check the vendor & device ID against the early quirks table.
130 *
131 * If the device is single function, let early_quirks() know so we don't
132 * poke at this device again.
133 */
134static int __init check_dev_quirk(int num, int slot, int func)
137{ 135{
138 u16 class; 136 u16 class;
139 u16 vendor; 137 u16 vendor;
@@ -144,7 +142,7 @@ static void __init check_dev_quirk(int num, int slot, int func)
144 class = read_pci_config_16(num, slot, func, PCI_CLASS_DEVICE); 142 class = read_pci_config_16(num, slot, func, PCI_CLASS_DEVICE);
145 143
146 if (class == 0xffff) 144 if (class == 0xffff)
147 return; 145 return -1; /* no class, treat as single function */
148 146
149 vendor = read_pci_config_16(num, slot, func, PCI_VENDOR_ID); 147 vendor = read_pci_config_16(num, slot, func, PCI_VENDOR_ID);
150 148
@@ -167,7 +165,9 @@ static void __init check_dev_quirk(int num, int slot, int func)
167 type = read_pci_config_byte(num, slot, func, 165 type = read_pci_config_byte(num, slot, func,
168 PCI_HEADER_TYPE); 166 PCI_HEADER_TYPE);
169 if (!(type & 0x80)) 167 if (!(type & 0x80))
170 return; 168 return -1;
169
170 return 0;
171} 171}
172 172
173void __init early_quirks(void) 173void __init early_quirks(void)
@@ -180,6 +180,9 @@ void __init early_quirks(void)
180 /* Poor man's PCI discovery */ 180 /* Poor man's PCI discovery */
181 for (num = 0; num < 32; num++) 181 for (num = 0; num < 32; num++)
182 for (slot = 0; slot < 32; slot++) 182 for (slot = 0; slot < 32; slot++)
183 for (func = 0; func < 8; func++) 183 for (func = 0; func < 8; func++) {
184 check_dev_quirk(num, slot, func); 184 /* Only probe function 0 on single fn devices */
185 if (check_dev_quirk(num, slot, func))
186 break;
187 }
185} 188}
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 643fd861b724..ff9e7350da54 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -196,7 +196,7 @@ static struct console simnow_console = {
196static struct console *early_console = &early_vga_console; 196static struct console *early_console = &early_vga_console;
197static int early_console_initialized; 197static int early_console_initialized;
198 198
199void early_printk(const char *fmt, ...) 199asmlinkage void early_printk(const char *fmt, ...)
200{ 200{
201 char buf[512]; 201 char buf[512];
202 int n; 202 int n;
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 77d424cf68b3..06cc8d4254b1 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -64,6 +64,17 @@ static int __init setup_noefi(char *arg)
64} 64}
65early_param("noefi", setup_noefi); 65early_param("noefi", setup_noefi);
66 66
67int add_efi_memmap;
68EXPORT_SYMBOL(add_efi_memmap);
69
70static int __init setup_add_efi_memmap(char *arg)
71{
72 add_efi_memmap = 1;
73 return 0;
74}
75early_param("add_efi_memmap", setup_add_efi_memmap);
76
77
67static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc) 78static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
68{ 79{
69 return efi_call_virt2(get_time, tm, tc); 80 return efi_call_virt2(get_time, tm, tc);
@@ -213,6 +224,50 @@ unsigned long efi_get_time(void)
213 eft.minute, eft.second); 224 eft.minute, eft.second);
214} 225}
215 226
227/*
228 * Tell the kernel about the EFI memory map. This might include
229 * more than the max 128 entries that can fit in the e820 legacy
230 * (zeropage) memory map.
231 */
232
233static void __init do_add_efi_memmap(void)
234{
235 void *p;
236
237 for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
238 efi_memory_desc_t *md = p;
239 unsigned long long start = md->phys_addr;
240 unsigned long long size = md->num_pages << EFI_PAGE_SHIFT;
241 int e820_type;
242
243 if (md->attribute & EFI_MEMORY_WB)
244 e820_type = E820_RAM;
245 else
246 e820_type = E820_RESERVED;
247 e820_add_region(start, size, e820_type);
248 }
249 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
250}
251
252void __init efi_reserve_early(void)
253{
254 unsigned long pmap;
255
256#ifdef CONFIG_X86_32
257 pmap = boot_params.efi_info.efi_memmap;
258#else
259 pmap = (boot_params.efi_info.efi_memmap |
260 ((__u64)boot_params.efi_info.efi_memmap_hi<<32));
261#endif
262 memmap.phys_map = (void *)pmap;
263 memmap.nr_map = boot_params.efi_info.efi_memmap_size /
264 boot_params.efi_info.efi_memdesc_size;
265 memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
266 memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
267 reserve_early(pmap, pmap + memmap.nr_map * memmap.desc_size,
268 "EFI memmap");
269}
270
216#if EFI_DEBUG 271#if EFI_DEBUG
217static void __init print_efi_memmap(void) 272static void __init print_efi_memmap(void)
218{ 273{
@@ -244,19 +299,11 @@ void __init efi_init(void)
244 299
245#ifdef CONFIG_X86_32 300#ifdef CONFIG_X86_32
246 efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab; 301 efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
247 memmap.phys_map = (void *)boot_params.efi_info.efi_memmap;
248#else 302#else
249 efi_phys.systab = (efi_system_table_t *) 303 efi_phys.systab = (efi_system_table_t *)
250 (boot_params.efi_info.efi_systab | 304 (boot_params.efi_info.efi_systab |
251 ((__u64)boot_params.efi_info.efi_systab_hi<<32)); 305 ((__u64)boot_params.efi_info.efi_systab_hi<<32));
252 memmap.phys_map = (void *)
253 (boot_params.efi_info.efi_memmap |
254 ((__u64)boot_params.efi_info.efi_memmap_hi<<32));
255#endif 306#endif
256 memmap.nr_map = boot_params.efi_info.efi_memmap_size /
257 boot_params.efi_info.efi_memdesc_size;
258 memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
259 memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
260 307
261 efi.systab = early_ioremap((unsigned long)efi_phys.systab, 308 efi.systab = early_ioremap((unsigned long)efi_phys.systab,
262 sizeof(efi_system_table_t)); 309 sizeof(efi_system_table_t));
@@ -370,6 +417,8 @@ void __init efi_init(void)
370 if (memmap.desc_size != sizeof(efi_memory_desc_t)) 417 if (memmap.desc_size != sizeof(efi_memory_desc_t))
371 printk(KERN_WARNING "Kernel-defined memdesc" 418 printk(KERN_WARNING "Kernel-defined memdesc"
372 "doesn't match the one from EFI!\n"); 419 "doesn't match the one from EFI!\n");
420 if (add_efi_memmap)
421 do_add_efi_memmap();
373 422
374 /* Setup for EFI runtime service */ 423 /* Setup for EFI runtime service */
375 reboot_type = BOOT_EFI; 424 reboot_type = BOOT_EFI;
@@ -424,7 +473,7 @@ void __init efi_enter_virtual_mode(void)
424 size = md->num_pages << EFI_PAGE_SHIFT; 473 size = md->num_pages << EFI_PAGE_SHIFT;
425 end = md->phys_addr + size; 474 end = md->phys_addr + size;
426 475
427 if (PFN_UP(end) <= max_pfn_mapped) 476 if (PFN_UP(end) <= max_low_pfn_mapped)
428 va = __va(md->phys_addr); 477 va = __va(md->phys_addr);
429 else 478 else
430 va = efi_ioremap(md->phys_addr, size); 479 va = efi_ioremap(md->phys_addr, size);
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index 5d23d85624d4..4b63c8e1f13b 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -49,13 +49,13 @@ void efi_call_phys_prelog(void)
49 local_irq_save(efi_rt_eflags); 49 local_irq_save(efi_rt_eflags);
50 50
51 /* 51 /*
52 * If I don't have PSE, I should just duplicate two entries in page 52 * If I don't have PAE, I should just duplicate two entries in page
53 * directory. If I have PSE, I just need to duplicate one entry in 53 * directory. If I have PAE, I just need to duplicate one entry in
54 * page directory. 54 * page directory.
55 */ 55 */
56 cr4 = read_cr4(); 56 cr4 = read_cr4();
57 57
58 if (cr4 & X86_CR4_PSE) { 58 if (cr4 & X86_CR4_PAE) {
59 efi_bak_pg_dir_pointer[0].pgd = 59 efi_bak_pg_dir_pointer[0].pgd =
60 swapper_pg_dir[pgd_index(0)].pgd; 60 swapper_pg_dir[pgd_index(0)].pgd;
61 swapper_pg_dir[0].pgd = 61 swapper_pg_dir[0].pgd =
@@ -93,7 +93,7 @@ void efi_call_phys_epilog(void)
93 93
94 cr4 = read_cr4(); 94 cr4 = read_cr4();
95 95
96 if (cr4 & X86_CR4_PSE) { 96 if (cr4 & X86_CR4_PAE) {
97 swapper_pg_dir[pgd_index(0)].pgd = 97 swapper_pg_dir[pgd_index(0)].pgd =
98 efi_bak_pg_dir_pointer[0].pgd; 98 efi_bak_pg_dir_pointer[0].pgd;
99 } else { 99 } else {
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index d0060fdcccac..652c5287215f 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -97,13 +97,7 @@ void __init efi_call_phys_epilog(void)
97 early_runtime_code_mapping_set_exec(0); 97 early_runtime_code_mapping_set_exec(0);
98} 98}
99 99
100void __init efi_reserve_bootmem(void) 100void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size)
101{
102 reserve_bootmem_generic((unsigned long)memmap.phys_map,
103 memmap.nr_map * memmap.desc_size);
104}
105
106void __iomem * __init efi_ioremap(unsigned long phys_addr, unsigned long size)
107{ 101{
108 static unsigned pages_mapped __initdata; 102 static unsigned pages_mapped __initdata;
109 unsigned i, pages; 103 unsigned i, pages;
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 2a609dc3271c..6bc07f0f1202 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -51,14 +51,15 @@
51#include <asm/percpu.h> 51#include <asm/percpu.h>
52#include <asm/dwarf2.h> 52#include <asm/dwarf2.h>
53#include <asm/processor-flags.h> 53#include <asm/processor-flags.h>
54#include "irq_vectors.h" 54#include <asm/ftrace.h>
55#include <asm/irq_vectors.h>
55 56
56/* 57/*
57 * We use macros for low-level operations which need to be overridden 58 * We use macros for low-level operations which need to be overridden
58 * for paravirtualization. The following will never clobber any registers: 59 * for paravirtualization. The following will never clobber any registers:
59 * INTERRUPT_RETURN (aka. "iret") 60 * INTERRUPT_RETURN (aka. "iret")
60 * GET_CR0_INTO_EAX (aka. "movl %cr0, %eax") 61 * GET_CR0_INTO_EAX (aka. "movl %cr0, %eax")
61 * ENABLE_INTERRUPTS_SYSCALL_RET (aka "sti; sysexit"). 62 * ENABLE_INTERRUPTS_SYSEXIT (aka "sti; sysexit").
62 * 63 *
63 * For DISABLE_INTERRUPTS/ENABLE_INTERRUPTS (aka "cli"/"sti"), you must 64 * For DISABLE_INTERRUPTS/ENABLE_INTERRUPTS (aka "cli"/"sti"), you must
64 * specify what registers can be overwritten (CLBR_NONE, CLBR_EAX/EDX/ECX/ANY). 65 * specify what registers can be overwritten (CLBR_NONE, CLBR_EAX/EDX/ECX/ANY).
@@ -248,6 +249,7 @@ ENTRY(resume_userspace)
248 DISABLE_INTERRUPTS(CLBR_ANY) # make sure we don't miss an interrupt 249 DISABLE_INTERRUPTS(CLBR_ANY) # make sure we don't miss an interrupt
249 # setting need_resched or sigpending 250 # setting need_resched or sigpending
250 # between sampling and the iret 251 # between sampling and the iret
252 TRACE_IRQS_OFF
251 movl TI_flags(%ebp), %ecx 253 movl TI_flags(%ebp), %ecx
252 andl $_TIF_WORK_MASK, %ecx # is there any work to be done on 254 andl $_TIF_WORK_MASK, %ecx # is there any work to be done on
253 # int/exception return? 255 # int/exception return?
@@ -348,7 +350,7 @@ sysenter_past_esp:
348 xorl %ebp,%ebp 350 xorl %ebp,%ebp
349 TRACE_IRQS_ON 351 TRACE_IRQS_ON
3501: mov PT_FS(%esp), %fs 3521: mov PT_FS(%esp), %fs
351 ENABLE_INTERRUPTS_SYSCALL_RET 353 ENABLE_INTERRUPTS_SYSEXIT
352 CFI_ENDPROC 354 CFI_ENDPROC
353.pushsection .fixup,"ax" 355.pushsection .fixup,"ax"
3542: movl $0,PT_FS(%esp) 3562: movl $0,PT_FS(%esp)
@@ -873,10 +875,10 @@ ENTRY(native_iret)
873.previous 875.previous
874END(native_iret) 876END(native_iret)
875 877
876ENTRY(native_irq_enable_syscall_ret) 878ENTRY(native_irq_enable_sysexit)
877 sti 879 sti
878 sysexit 880 sysexit
879END(native_irq_enable_syscall_ret) 881END(native_irq_enable_sysexit)
880#endif 882#endif
881 883
882KPROBE_ENTRY(int3) 884KPROBE_ENTRY(int3)
@@ -1023,6 +1025,7 @@ ENTRY(xen_sysenter_target)
1023 RING0_INT_FRAME 1025 RING0_INT_FRAME
1024 addl $5*4, %esp /* remove xen-provided frame */ 1026 addl $5*4, %esp /* remove xen-provided frame */
1025 jmp sysenter_past_esp 1027 jmp sysenter_past_esp
1028 CFI_ENDPROC
1026 1029
1027ENTRY(xen_hypervisor_callback) 1030ENTRY(xen_hypervisor_callback)
1028 CFI_STARTPROC 1031 CFI_STARTPROC
@@ -1109,6 +1112,77 @@ ENDPROC(xen_failsafe_callback)
1109 1112
1110#endif /* CONFIG_XEN */ 1113#endif /* CONFIG_XEN */
1111 1114
1115#ifdef CONFIG_FTRACE
1116#ifdef CONFIG_DYNAMIC_FTRACE
1117
1118ENTRY(mcount)
1119 pushl %eax
1120 pushl %ecx
1121 pushl %edx
1122 movl 0xc(%esp), %eax
1123 subl $MCOUNT_INSN_SIZE, %eax
1124
1125.globl mcount_call
1126mcount_call:
1127 call ftrace_stub
1128
1129 popl %edx
1130 popl %ecx
1131 popl %eax
1132
1133 ret
1134END(mcount)
1135
1136ENTRY(ftrace_caller)
1137 pushl %eax
1138 pushl %ecx
1139 pushl %edx
1140 movl 0xc(%esp), %eax
1141 movl 0x4(%ebp), %edx
1142 subl $MCOUNT_INSN_SIZE, %eax
1143
1144.globl ftrace_call
1145ftrace_call:
1146 call ftrace_stub
1147
1148 popl %edx
1149 popl %ecx
1150 popl %eax
1151
1152.globl ftrace_stub
1153ftrace_stub:
1154 ret
1155END(ftrace_caller)
1156
1157#else /* ! CONFIG_DYNAMIC_FTRACE */
1158
1159ENTRY(mcount)
1160 cmpl $ftrace_stub, ftrace_trace_function
1161 jnz trace
1162.globl ftrace_stub
1163ftrace_stub:
1164 ret
1165
1166 /* taken from glibc */
1167trace:
1168 pushl %eax
1169 pushl %ecx
1170 pushl %edx
1171 movl 0xc(%esp), %eax
1172 movl 0x4(%ebp), %edx
1173 subl $MCOUNT_INSN_SIZE, %eax
1174
1175 call *ftrace_trace_function
1176
1177 popl %edx
1178 popl %ecx
1179 popl %eax
1180
1181 jmp ftrace_stub
1182END(mcount)
1183#endif /* CONFIG_DYNAMIC_FTRACE */
1184#endif /* CONFIG_FTRACE */
1185
1112.section .rodata,"a" 1186.section .rodata,"a"
1113#include "syscall_table_32.S" 1187#include "syscall_table_32.S"
1114 1188
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 556a8df522a7..ae63e584c340 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -51,16 +51,121 @@
51#include <asm/page.h> 51#include <asm/page.h>
52#include <asm/irqflags.h> 52#include <asm/irqflags.h>
53#include <asm/paravirt.h> 53#include <asm/paravirt.h>
54#include <asm/ftrace.h>
54 55
55 .code64 56 .code64
56 57
58#ifdef CONFIG_FTRACE
59#ifdef CONFIG_DYNAMIC_FTRACE
60ENTRY(mcount)
61
62 subq $0x38, %rsp
63 movq %rax, (%rsp)
64 movq %rcx, 8(%rsp)
65 movq %rdx, 16(%rsp)
66 movq %rsi, 24(%rsp)
67 movq %rdi, 32(%rsp)
68 movq %r8, 40(%rsp)
69 movq %r9, 48(%rsp)
70
71 movq 0x38(%rsp), %rdi
72 subq $MCOUNT_INSN_SIZE, %rdi
73
74.globl mcount_call
75mcount_call:
76 call ftrace_stub
77
78 movq 48(%rsp), %r9
79 movq 40(%rsp), %r8
80 movq 32(%rsp), %rdi
81 movq 24(%rsp), %rsi
82 movq 16(%rsp), %rdx
83 movq 8(%rsp), %rcx
84 movq (%rsp), %rax
85 addq $0x38, %rsp
86
87 retq
88END(mcount)
89
90ENTRY(ftrace_caller)
91
92 /* taken from glibc */
93 subq $0x38, %rsp
94 movq %rax, (%rsp)
95 movq %rcx, 8(%rsp)
96 movq %rdx, 16(%rsp)
97 movq %rsi, 24(%rsp)
98 movq %rdi, 32(%rsp)
99 movq %r8, 40(%rsp)
100 movq %r9, 48(%rsp)
101
102 movq 0x38(%rsp), %rdi
103 movq 8(%rbp), %rsi
104 subq $MCOUNT_INSN_SIZE, %rdi
105
106.globl ftrace_call
107ftrace_call:
108 call ftrace_stub
109
110 movq 48(%rsp), %r9
111 movq 40(%rsp), %r8
112 movq 32(%rsp), %rdi
113 movq 24(%rsp), %rsi
114 movq 16(%rsp), %rdx
115 movq 8(%rsp), %rcx
116 movq (%rsp), %rax
117 addq $0x38, %rsp
118
119.globl ftrace_stub
120ftrace_stub:
121 retq
122END(ftrace_caller)
123
124#else /* ! CONFIG_DYNAMIC_FTRACE */
125ENTRY(mcount)
126 cmpq $ftrace_stub, ftrace_trace_function
127 jnz trace
128.globl ftrace_stub
129ftrace_stub:
130 retq
131
132trace:
133 /* taken from glibc */
134 subq $0x38, %rsp
135 movq %rax, (%rsp)
136 movq %rcx, 8(%rsp)
137 movq %rdx, 16(%rsp)
138 movq %rsi, 24(%rsp)
139 movq %rdi, 32(%rsp)
140 movq %r8, 40(%rsp)
141 movq %r9, 48(%rsp)
142
143 movq 0x38(%rsp), %rdi
144 movq 8(%rbp), %rsi
145 subq $MCOUNT_INSN_SIZE, %rdi
146
147 call *ftrace_trace_function
148
149 movq 48(%rsp), %r9
150 movq 40(%rsp), %r8
151 movq 32(%rsp), %rdi
152 movq 24(%rsp), %rsi
153 movq 16(%rsp), %rdx
154 movq 8(%rsp), %rcx
155 movq (%rsp), %rax
156 addq $0x38, %rsp
157
158 jmp ftrace_stub
159END(mcount)
160#endif /* CONFIG_DYNAMIC_FTRACE */
161#endif /* CONFIG_FTRACE */
162
57#ifndef CONFIG_PREEMPT 163#ifndef CONFIG_PREEMPT
58#define retint_kernel retint_restore_args 164#define retint_kernel retint_restore_args
59#endif 165#endif
60 166
61#ifdef CONFIG_PARAVIRT 167#ifdef CONFIG_PARAVIRT
62ENTRY(native_irq_enable_syscall_ret) 168ENTRY(native_usergs_sysret64)
63 movq %gs:pda_oldrsp,%rsp
64 swapgs 169 swapgs
65 sysretq 170 sysretq
66#endif /* CONFIG_PARAVIRT */ 171#endif /* CONFIG_PARAVIRT */
@@ -104,7 +209,7 @@ ENTRY(native_irq_enable_syscall_ret)
104 .macro FAKE_STACK_FRAME child_rip 209 .macro FAKE_STACK_FRAME child_rip
105 /* push in order ss, rsp, eflags, cs, rip */ 210 /* push in order ss, rsp, eflags, cs, rip */
106 xorl %eax, %eax 211 xorl %eax, %eax
107 pushq %rax /* ss */ 212 pushq $__KERNEL_DS /* ss */
108 CFI_ADJUST_CFA_OFFSET 8 213 CFI_ADJUST_CFA_OFFSET 8
109 /*CFI_REL_OFFSET ss,0*/ 214 /*CFI_REL_OFFSET ss,0*/
110 pushq %rax /* rsp */ 215 pushq %rax /* rsp */
@@ -169,13 +274,13 @@ ENTRY(ret_from_fork)
169 CFI_ADJUST_CFA_OFFSET -4 274 CFI_ADJUST_CFA_OFFSET -4
170 call schedule_tail 275 call schedule_tail
171 GET_THREAD_INFO(%rcx) 276 GET_THREAD_INFO(%rcx)
172 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),threadinfo_flags(%rcx) 277 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
173 jnz rff_trace 278 jnz rff_trace
174rff_action: 279rff_action:
175 RESTORE_REST 280 RESTORE_REST
176 testl $3,CS-ARGOFFSET(%rsp) # from kernel_thread? 281 testl $3,CS-ARGOFFSET(%rsp) # from kernel_thread?
177 je int_ret_from_sys_call 282 je int_ret_from_sys_call
178 testl $_TIF_IA32,threadinfo_flags(%rcx) 283 testl $_TIF_IA32,TI_flags(%rcx)
179 jnz int_ret_from_sys_call 284 jnz int_ret_from_sys_call
180 RESTORE_TOP_OF_STACK %rdi,ARGOFFSET 285 RESTORE_TOP_OF_STACK %rdi,ARGOFFSET
181 jmp ret_from_sys_call 286 jmp ret_from_sys_call
@@ -244,7 +349,8 @@ ENTRY(system_call_after_swapgs)
244 movq %rcx,RIP-ARGOFFSET(%rsp) 349 movq %rcx,RIP-ARGOFFSET(%rsp)
245 CFI_REL_OFFSET rip,RIP-ARGOFFSET 350 CFI_REL_OFFSET rip,RIP-ARGOFFSET
246 GET_THREAD_INFO(%rcx) 351 GET_THREAD_INFO(%rcx)
247 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP),threadinfo_flags(%rcx) 352 testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
353 TI_flags(%rcx)
248 jnz tracesys 354 jnz tracesys
249 cmpq $__NR_syscall_max,%rax 355 cmpq $__NR_syscall_max,%rax
250 ja badsys 356 ja badsys
@@ -263,7 +369,7 @@ sysret_check:
263 GET_THREAD_INFO(%rcx) 369 GET_THREAD_INFO(%rcx)
264 DISABLE_INTERRUPTS(CLBR_NONE) 370 DISABLE_INTERRUPTS(CLBR_NONE)
265 TRACE_IRQS_OFF 371 TRACE_IRQS_OFF
266 movl threadinfo_flags(%rcx),%edx 372 movl TI_flags(%rcx),%edx
267 andl %edi,%edx 373 andl %edi,%edx
268 jnz sysret_careful 374 jnz sysret_careful
269 CFI_REMEMBER_STATE 375 CFI_REMEMBER_STATE
@@ -275,7 +381,8 @@ sysret_check:
275 CFI_REGISTER rip,rcx 381 CFI_REGISTER rip,rcx
276 RESTORE_ARGS 0,-ARG_SKIP,1 382 RESTORE_ARGS 0,-ARG_SKIP,1
277 /*CFI_REGISTER rflags,r11*/ 383 /*CFI_REGISTER rflags,r11*/
278 ENABLE_INTERRUPTS_SYSCALL_RET 384 movq %gs:pda_oldrsp, %rsp
385 USERGS_SYSRET64
279 386
280 CFI_RESTORE_STATE 387 CFI_RESTORE_STATE
281 /* Handle reschedules */ 388 /* Handle reschedules */
@@ -305,7 +412,7 @@ sysret_signal:
305 leaq -ARGOFFSET(%rsp),%rdi # &pt_regs -> arg1 412 leaq -ARGOFFSET(%rsp),%rdi # &pt_regs -> arg1
306 xorl %esi,%esi # oldset -> arg2 413 xorl %esi,%esi # oldset -> arg2
307 call ptregscall_common 414 call ptregscall_common
3081: movl $_TIF_NEED_RESCHED,%edi 4151: movl $_TIF_WORK_MASK,%edi
309 /* Use IRET because user could have changed frame. This 416 /* Use IRET because user could have changed frame. This
310 works because ptregscall_common has called FIXUP_TOP_OF_STACK. */ 417 works because ptregscall_common has called FIXUP_TOP_OF_STACK. */
311 DISABLE_INTERRUPTS(CLBR_NONE) 418 DISABLE_INTERRUPTS(CLBR_NONE)
@@ -347,10 +454,10 @@ int_ret_from_sys_call:
347int_with_check: 454int_with_check:
348 LOCKDEP_SYS_EXIT_IRQ 455 LOCKDEP_SYS_EXIT_IRQ
349 GET_THREAD_INFO(%rcx) 456 GET_THREAD_INFO(%rcx)
350 movl threadinfo_flags(%rcx),%edx 457 movl TI_flags(%rcx),%edx
351 andl %edi,%edx 458 andl %edi,%edx
352 jnz int_careful 459 jnz int_careful
353 andl $~TS_COMPAT,threadinfo_status(%rcx) 460 andl $~TS_COMPAT,TI_status(%rcx)
354 jmp retint_swapgs 461 jmp retint_swapgs
355 462
356 /* Either reschedule or signal or syscall exit tracking needed. */ 463 /* Either reschedule or signal or syscall exit tracking needed. */
@@ -393,7 +500,7 @@ int_signal:
393 movq %rsp,%rdi # &ptregs -> arg1 500 movq %rsp,%rdi # &ptregs -> arg1
394 xorl %esi,%esi # oldset -> arg2 501 xorl %esi,%esi # oldset -> arg2
395 call do_notify_resume 502 call do_notify_resume
3961: movl $_TIF_NEED_RESCHED,%edi 5031: movl $_TIF_WORK_MASK,%edi
397int_restore_rest: 504int_restore_rest:
398 RESTORE_REST 505 RESTORE_REST
399 DISABLE_INTERRUPTS(CLBR_NONE) 506 DISABLE_INTERRUPTS(CLBR_NONE)
@@ -420,7 +527,6 @@ END(\label)
420 PTREGSCALL stub_clone, sys_clone, %r8 527 PTREGSCALL stub_clone, sys_clone, %r8
421 PTREGSCALL stub_fork, sys_fork, %rdi 528 PTREGSCALL stub_fork, sys_fork, %rdi
422 PTREGSCALL stub_vfork, sys_vfork, %rdi 529 PTREGSCALL stub_vfork, sys_vfork, %rdi
423 PTREGSCALL stub_rt_sigsuspend, sys_rt_sigsuspend, %rdx
424 PTREGSCALL stub_sigaltstack, sys_sigaltstack, %rdx 530 PTREGSCALL stub_sigaltstack, sys_sigaltstack, %rdx
425 PTREGSCALL stub_iopl, sys_iopl, %rsi 531 PTREGSCALL stub_iopl, sys_iopl, %rsi
426 532
@@ -559,7 +665,7 @@ retint_with_reschedule:
559 movl $_TIF_WORK_MASK,%edi 665 movl $_TIF_WORK_MASK,%edi
560retint_check: 666retint_check:
561 LOCKDEP_SYS_EXIT_IRQ 667 LOCKDEP_SYS_EXIT_IRQ
562 movl threadinfo_flags(%rcx),%edx 668 movl TI_flags(%rcx),%edx
563 andl %edi,%edx 669 andl %edi,%edx
564 CFI_REMEMBER_STATE 670 CFI_REMEMBER_STATE
565 jnz retint_careful 671 jnz retint_careful
@@ -647,17 +753,16 @@ retint_signal:
647 RESTORE_REST 753 RESTORE_REST
648 DISABLE_INTERRUPTS(CLBR_NONE) 754 DISABLE_INTERRUPTS(CLBR_NONE)
649 TRACE_IRQS_OFF 755 TRACE_IRQS_OFF
650 movl $_TIF_NEED_RESCHED,%edi
651 GET_THREAD_INFO(%rcx) 756 GET_THREAD_INFO(%rcx)
652 jmp retint_check 757 jmp retint_with_reschedule
653 758
654#ifdef CONFIG_PREEMPT 759#ifdef CONFIG_PREEMPT
655 /* Returning to kernel space. Check if we need preemption */ 760 /* Returning to kernel space. Check if we need preemption */
656 /* rcx: threadinfo. interrupts off. */ 761 /* rcx: threadinfo. interrupts off. */
657ENTRY(retint_kernel) 762ENTRY(retint_kernel)
658 cmpl $0,threadinfo_preempt_count(%rcx) 763 cmpl $0,TI_preempt_count(%rcx)
659 jnz retint_restore_args 764 jnz retint_restore_args
660 bt $TIF_NEED_RESCHED,threadinfo_flags(%rcx) 765 bt $TIF_NEED_RESCHED,TI_flags(%rcx)
661 jnc retint_restore_args 766 jnc retint_restore_args
662 bt $9,EFLAGS-ARGOFFSET(%rsp) /* interrupts off? */ 767 bt $9,EFLAGS-ARGOFFSET(%rsp) /* interrupts off? */
663 jnc retint_restore_args 768 jnc retint_restore_args
@@ -711,6 +816,9 @@ END(invalidate_interrupt\num)
711ENTRY(call_function_interrupt) 816ENTRY(call_function_interrupt)
712 apicinterrupt CALL_FUNCTION_VECTOR,smp_call_function_interrupt 817 apicinterrupt CALL_FUNCTION_VECTOR,smp_call_function_interrupt
713END(call_function_interrupt) 818END(call_function_interrupt)
819ENTRY(call_function_single_interrupt)
820 apicinterrupt CALL_FUNCTION_SINGLE_VECTOR,smp_call_function_single_interrupt
821END(call_function_single_interrupt)
714ENTRY(irq_move_cleanup_interrupt) 822ENTRY(irq_move_cleanup_interrupt)
715 apicinterrupt IRQ_MOVE_CLEANUP_VECTOR,smp_irq_move_cleanup_interrupt 823 apicinterrupt IRQ_MOVE_CLEANUP_VECTOR,smp_irq_move_cleanup_interrupt
716END(irq_move_cleanup_interrupt) 824END(irq_move_cleanup_interrupt)
@@ -720,6 +828,10 @@ ENTRY(apic_timer_interrupt)
720 apicinterrupt LOCAL_TIMER_VECTOR,smp_apic_timer_interrupt 828 apicinterrupt LOCAL_TIMER_VECTOR,smp_apic_timer_interrupt
721END(apic_timer_interrupt) 829END(apic_timer_interrupt)
722 830
831ENTRY(uv_bau_message_intr1)
832 apicinterrupt 220,uv_bau_message_interrupt
833END(uv_bau_message_intr1)
834
723ENTRY(error_interrupt) 835ENTRY(error_interrupt)
724 apicinterrupt ERROR_APIC_VECTOR,smp_error_interrupt 836 apicinterrupt ERROR_APIC_VECTOR,smp_error_interrupt
725END(error_interrupt) 837END(error_interrupt)
@@ -733,6 +845,7 @@ END(spurious_interrupt)
733 */ 845 */
734 .macro zeroentry sym 846 .macro zeroentry sym
735 INTR_FRAME 847 INTR_FRAME
848 PARAVIRT_ADJUST_EXCEPTION_FRAME
736 pushq $0 /* push error code/oldrax */ 849 pushq $0 /* push error code/oldrax */
737 CFI_ADJUST_CFA_OFFSET 8 850 CFI_ADJUST_CFA_OFFSET 8
738 pushq %rax /* push real oldrax to the rdi slot */ 851 pushq %rax /* push real oldrax to the rdi slot */
@@ -745,6 +858,7 @@ END(spurious_interrupt)
745 858
746 .macro errorentry sym 859 .macro errorentry sym
747 XCPT_FRAME 860 XCPT_FRAME
861 PARAVIRT_ADJUST_EXCEPTION_FRAME
748 pushq %rax 862 pushq %rax
749 CFI_ADJUST_CFA_OFFSET 8 863 CFI_ADJUST_CFA_OFFSET 8
750 CFI_REL_OFFSET rax,0 864 CFI_REL_OFFSET rax,0
@@ -814,7 +928,7 @@ paranoid_restore\trace:
814 jmp irq_return 928 jmp irq_return
815paranoid_userspace\trace: 929paranoid_userspace\trace:
816 GET_THREAD_INFO(%rcx) 930 GET_THREAD_INFO(%rcx)
817 movl threadinfo_flags(%rcx),%ebx 931 movl TI_flags(%rcx),%ebx
818 andl $_TIF_WORK_MASK,%ebx 932 andl $_TIF_WORK_MASK,%ebx
819 jz paranoid_swapgs\trace 933 jz paranoid_swapgs\trace
820 movq %rsp,%rdi /* &pt_regs */ 934 movq %rsp,%rdi /* &pt_regs */
@@ -912,7 +1026,7 @@ error_exit:
912 testl %eax,%eax 1026 testl %eax,%eax
913 jne retint_kernel 1027 jne retint_kernel
914 LOCKDEP_SYS_EXIT_IRQ 1028 LOCKDEP_SYS_EXIT_IRQ
915 movl threadinfo_flags(%rcx),%edx 1029 movl TI_flags(%rcx),%edx
916 movl $_TIF_WORK_MASK,%edi 1030 movl $_TIF_WORK_MASK,%edi
917 andl %edi,%edx 1031 andl %edi,%edx
918 jnz retint_careful 1032 jnz retint_careful
@@ -926,11 +1040,11 @@ error_kernelspace:
926 iret run with kernel gs again, so don't set the user space flag. 1040 iret run with kernel gs again, so don't set the user space flag.
927 B stepping K8s sometimes report an truncated RIP for IRET 1041 B stepping K8s sometimes report an truncated RIP for IRET
928 exceptions returning to compat mode. Check for these here too. */ 1042 exceptions returning to compat mode. Check for these here too. */
929 leaq irq_return(%rip),%rbp 1043 leaq irq_return(%rip),%rcx
930 cmpq %rbp,RIP(%rsp) 1044 cmpq %rcx,RIP(%rsp)
931 je error_swapgs 1045 je error_swapgs
932 movl %ebp,%ebp /* zero extend */ 1046 movl %ecx,%ecx /* zero extend */
933 cmpq %rbp,RIP(%rsp) 1047 cmpq %rcx,RIP(%rsp)
934 je error_swapgs 1048 je error_swapgs
935 cmpq $gs_change,RIP(%rsp) 1049 cmpq $gs_change,RIP(%rsp)
936 je error_swapgs 1050 je error_swapgs
@@ -939,7 +1053,7 @@ KPROBE_END(error_entry)
939 1053
940 /* Reload gs selector with exception handling */ 1054 /* Reload gs selector with exception handling */
941 /* edi: new selector */ 1055 /* edi: new selector */
942ENTRY(load_gs_index) 1056ENTRY(native_load_gs_index)
943 CFI_STARTPROC 1057 CFI_STARTPROC
944 pushf 1058 pushf
945 CFI_ADJUST_CFA_OFFSET 8 1059 CFI_ADJUST_CFA_OFFSET 8
@@ -953,7 +1067,7 @@ gs_change:
953 CFI_ADJUST_CFA_OFFSET -8 1067 CFI_ADJUST_CFA_OFFSET -8
954 ret 1068 ret
955 CFI_ENDPROC 1069 CFI_ENDPROC
956ENDPROC(load_gs_index) 1070ENDPROC(native_load_gs_index)
957 1071
958 .section __ex_table,"a" 1072 .section __ex_table,"a"
959 .align 8 1073 .align 8
@@ -1120,10 +1234,6 @@ ENTRY(coprocessor_segment_overrun)
1120 zeroentry do_coprocessor_segment_overrun 1234 zeroentry do_coprocessor_segment_overrun
1121END(coprocessor_segment_overrun) 1235END(coprocessor_segment_overrun)
1122 1236
1123ENTRY(reserved)
1124 zeroentry do_reserved
1125END(reserved)
1126
1127 /* runs on exception stack */ 1237 /* runs on exception stack */
1128ENTRY(double_fault) 1238ENTRY(double_fault)
1129 XCPT_FRAME 1239 XCPT_FRAME
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
new file mode 100644
index 000000000000..ab115cd15fdf
--- /dev/null
+++ b/arch/x86/kernel/ftrace.c
@@ -0,0 +1,141 @@
1/*
2 * Code for replacing ftrace calls with jumps.
3 *
4 * Copyright (C) 2007-2008 Steven Rostedt <srostedt@redhat.com>
5 *
6 * Thanks goes to Ingo Molnar, for suggesting the idea.
7 * Mathieu Desnoyers, for suggesting postponing the modifications.
8 * Arjan van de Ven, for keeping me straight, and explaining to me
9 * the dangers of modifying code on the run.
10 */
11
12#include <linux/spinlock.h>
13#include <linux/hardirq.h>
14#include <linux/ftrace.h>
15#include <linux/percpu.h>
16#include <linux/init.h>
17#include <linux/list.h>
18
19#include <asm/alternative.h>
20#include <asm/ftrace.h>
21
22
23/* Long is fine, even if it is only 4 bytes ;-) */
24static long *ftrace_nop;
25
26union ftrace_code_union {
27 char code[MCOUNT_INSN_SIZE];
28 struct {
29 char e8;
30 int offset;
31 } __attribute__((packed));
32};
33
34
35static int notrace ftrace_calc_offset(long ip, long addr)
36{
37 return (int)(addr - ip);
38}
39
40notrace unsigned char *ftrace_nop_replace(void)
41{
42 return (char *)ftrace_nop;
43}
44
45notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
46{
47 static union ftrace_code_union calc;
48
49 calc.e8 = 0xe8;
50 calc.offset = ftrace_calc_offset(ip + MCOUNT_INSN_SIZE, addr);
51
52 /*
53 * No locking needed, this must be called via kstop_machine
54 * which in essence is like running on a uniprocessor machine.
55 */
56 return calc.code;
57}
58
59notrace int
60ftrace_modify_code(unsigned long ip, unsigned char *old_code,
61 unsigned char *new_code)
62{
63 unsigned replaced;
64 unsigned old = *(unsigned *)old_code; /* 4 bytes */
65 unsigned new = *(unsigned *)new_code; /* 4 bytes */
66 unsigned char newch = new_code[4];
67 int faulted = 0;
68
69 /*
70 * Note: Due to modules and __init, code can
71 * disappear and change, we need to protect against faulting
72 * as well as code changing.
73 *
74 * No real locking needed, this code is run through
75 * kstop_machine.
76 */
77 asm volatile (
78 "1: lock\n"
79 " cmpxchg %3, (%2)\n"
80 " jnz 2f\n"
81 " movb %b4, 4(%2)\n"
82 "2:\n"
83 ".section .fixup, \"ax\"\n"
84 "3: movl $1, %0\n"
85 " jmp 2b\n"
86 ".previous\n"
87 _ASM_EXTABLE(1b, 3b)
88 : "=r"(faulted), "=a"(replaced)
89 : "r"(ip), "r"(new), "c"(newch),
90 "0"(faulted), "a"(old)
91 : "memory");
92 sync_core();
93
94 if (replaced != old && replaced != new)
95 faulted = 2;
96
97 return faulted;
98}
99
100notrace int ftrace_update_ftrace_func(ftrace_func_t func)
101{
102 unsigned long ip = (unsigned long)(&ftrace_call);
103 unsigned char old[MCOUNT_INSN_SIZE], *new;
104 int ret;
105
106 memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE);
107 new = ftrace_call_replace(ip, (unsigned long)func);
108 ret = ftrace_modify_code(ip, old, new);
109
110 return ret;
111}
112
113notrace int ftrace_mcount_set(unsigned long *data)
114{
115 unsigned long ip = (long)(&mcount_call);
116 unsigned long *addr = data;
117 unsigned char old[MCOUNT_INSN_SIZE], *new;
118
119 /*
120 * Replace the mcount stub with a pointer to the
121 * ip recorder function.
122 */
123 memcpy(old, &mcount_call, MCOUNT_INSN_SIZE);
124 new = ftrace_call_replace(ip, *addr);
125 *addr = ftrace_modify_code(ip, old, new);
126
127 return 0;
128}
129
130int __init ftrace_dyn_arch_init(void *data)
131{
132 const unsigned char *const *noptable = find_nop_table();
133
134 /* This is running in kstop_machine */
135
136 ftrace_mcount_set(data);
137
138 ftrace_nop = (unsigned long *)noptable[MCOUNT_INSN_SIZE];
139
140 return 0;
141}
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c
index cbaaf69bedb2..1fa8be5bd217 100644
--- a/arch/x86/kernel/genapic_64.c
+++ b/arch/x86/kernel/genapic_64.c
@@ -51,7 +51,7 @@ void __init setup_apic_routing(void)
51 else 51 else
52#endif 52#endif
53 53
54 if (num_possible_cpus() <= 8) 54 if (max_physical_apicid < 8)
55 genapic = &apic_flat; 55 genapic = &apic_flat;
56 else 56 else
57 genapic = &apic_physflat; 57 genapic = &apic_physflat;
diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c
index ebf13908a743..711f11c30b06 100644
--- a/arch/x86/kernel/genx2apic_uv_x.c
+++ b/arch/x86/kernel/genx2apic_uv_x.c
@@ -5,9 +5,10 @@
5 * 5 *
6 * SGI UV APIC functions (note: not an Intel compatible APIC) 6 * SGI UV APIC functions (note: not an Intel compatible APIC)
7 * 7 *
8 * Copyright (C) 2007 Silicon Graphics, Inc. All rights reserved. 8 * Copyright (C) 2007-2008 Silicon Graphics, Inc. All rights reserved.
9 */ 9 */
10 10
11#include <linux/kernel.h>
11#include <linux/threads.h> 12#include <linux/threads.h>
12#include <linux/cpumask.h> 13#include <linux/cpumask.h>
13#include <linux/string.h> 14#include <linux/string.h>
@@ -20,6 +21,7 @@
20#include <asm/smp.h> 21#include <asm/smp.h>
21#include <asm/ipi.h> 22#include <asm/ipi.h>
22#include <asm/genapic.h> 23#include <asm/genapic.h>
24#include <asm/pgtable.h>
23#include <asm/uv/uv_mmrs.h> 25#include <asm/uv/uv_mmrs.h>
24#include <asm/uv/uv_hub.h> 26#include <asm/uv/uv_hub.h>
25 27
@@ -55,37 +57,37 @@ static cpumask_t uv_vector_allocation_domain(int cpu)
55int uv_wakeup_secondary(int phys_apicid, unsigned int start_rip) 57int uv_wakeup_secondary(int phys_apicid, unsigned int start_rip)
56{ 58{
57 unsigned long val; 59 unsigned long val;
58 int nasid; 60 int pnode;
59 61
60 nasid = uv_apicid_to_nasid(phys_apicid); 62 pnode = uv_apicid_to_pnode(phys_apicid);
61 val = (1UL << UVH_IPI_INT_SEND_SHFT) | 63 val = (1UL << UVH_IPI_INT_SEND_SHFT) |
62 (phys_apicid << UVH_IPI_INT_APIC_ID_SHFT) | 64 (phys_apicid << UVH_IPI_INT_APIC_ID_SHFT) |
63 (((long)start_rip << UVH_IPI_INT_VECTOR_SHFT) >> 12) | 65 (((long)start_rip << UVH_IPI_INT_VECTOR_SHFT) >> 12) |
64 APIC_DM_INIT; 66 APIC_DM_INIT;
65 uv_write_global_mmr64(nasid, UVH_IPI_INT, val); 67 uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
66 mdelay(10); 68 mdelay(10);
67 69
68 val = (1UL << UVH_IPI_INT_SEND_SHFT) | 70 val = (1UL << UVH_IPI_INT_SEND_SHFT) |
69 (phys_apicid << UVH_IPI_INT_APIC_ID_SHFT) | 71 (phys_apicid << UVH_IPI_INT_APIC_ID_SHFT) |
70 (((long)start_rip << UVH_IPI_INT_VECTOR_SHFT) >> 12) | 72 (((long)start_rip << UVH_IPI_INT_VECTOR_SHFT) >> 12) |
71 APIC_DM_STARTUP; 73 APIC_DM_STARTUP;
72 uv_write_global_mmr64(nasid, UVH_IPI_INT, val); 74 uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
73 return 0; 75 return 0;
74} 76}
75 77
76static void uv_send_IPI_one(int cpu, int vector) 78static void uv_send_IPI_one(int cpu, int vector)
77{ 79{
78 unsigned long val, apicid, lapicid; 80 unsigned long val, apicid, lapicid;
79 int nasid; 81 int pnode;
80 82
81 apicid = per_cpu(x86_cpu_to_apicid, cpu); /* ZZZ - cache node-local ? */ 83 apicid = per_cpu(x86_cpu_to_apicid, cpu); /* ZZZ - cache node-local ? */
82 lapicid = apicid & 0x3f; /* ZZZ macro needed */ 84 lapicid = apicid & 0x3f; /* ZZZ macro needed */
83 nasid = uv_apicid_to_nasid(apicid); 85 pnode = uv_apicid_to_pnode(apicid);
84 val = 86 val =
85 (1UL << UVH_IPI_INT_SEND_SHFT) | (lapicid << 87 (1UL << UVH_IPI_INT_SEND_SHFT) | (lapicid <<
86 UVH_IPI_INT_APIC_ID_SHFT) | 88 UVH_IPI_INT_APIC_ID_SHFT) |
87 (vector << UVH_IPI_INT_VECTOR_SHFT); 89 (vector << UVH_IPI_INT_VECTOR_SHFT);
88 uv_write_global_mmr64(nasid, UVH_IPI_INT, val); 90 uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
89} 91}
90 92
91static void uv_send_IPI_mask(cpumask_t mask, int vector) 93static void uv_send_IPI_mask(cpumask_t mask, int vector)
@@ -159,39 +161,146 @@ struct genapic apic_x2apic_uv_x = {
159 .phys_pkg_id = phys_pkg_id, /* Fixme ZZZ */ 161 .phys_pkg_id = phys_pkg_id, /* Fixme ZZZ */
160}; 162};
161 163
162static __cpuinit void set_x2apic_extra_bits(int nasid) 164static __cpuinit void set_x2apic_extra_bits(int pnode)
163{ 165{
164 __get_cpu_var(x2apic_extra_bits) = ((nasid >> 1) << 6); 166 __get_cpu_var(x2apic_extra_bits) = (pnode << 6);
165} 167}
166 168
167/* 169/*
168 * Called on boot cpu. 170 * Called on boot cpu.
169 */ 171 */
172static __init int boot_pnode_to_blade(int pnode)
173{
174 int blade;
175
176 for (blade = 0; blade < uv_num_possible_blades(); blade++)
177 if (pnode == uv_blade_info[blade].pnode)
178 return blade;
179 BUG();
180}
181
182struct redir_addr {
183 unsigned long redirect;
184 unsigned long alias;
185};
186
187#define DEST_SHIFT UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_SHFT
188
189static __initdata struct redir_addr redir_addrs[] = {
190 {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR, UVH_SI_ALIAS0_OVERLAY_CONFIG},
191 {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR, UVH_SI_ALIAS1_OVERLAY_CONFIG},
192 {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR, UVH_SI_ALIAS2_OVERLAY_CONFIG},
193};
194
195static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size)
196{
197 union uvh_si_alias0_overlay_config_u alias;
198 union uvh_rh_gam_alias210_redirect_config_2_mmr_u redirect;
199 int i;
200
201 for (i = 0; i < ARRAY_SIZE(redir_addrs); i++) {
202 alias.v = uv_read_local_mmr(redir_addrs[i].alias);
203 if (alias.s.base == 0) {
204 *size = (1UL << alias.s.m_alias);
205 redirect.v = uv_read_local_mmr(redir_addrs[i].redirect);
206 *base = (unsigned long)redirect.s.dest_base << DEST_SHIFT;
207 return;
208 }
209 }
210 BUG();
211}
212
213static __init void map_low_mmrs(void)
214{
215 init_extra_mapping_uc(UV_GLOBAL_MMR32_BASE, UV_GLOBAL_MMR32_SIZE);
216 init_extra_mapping_uc(UV_LOCAL_MMR_BASE, UV_LOCAL_MMR_SIZE);
217}
218
219enum map_type {map_wb, map_uc};
220
221static void map_high(char *id, unsigned long base, int shift, enum map_type map_type)
222{
223 unsigned long bytes, paddr;
224
225 paddr = base << shift;
226 bytes = (1UL << shift);
227 printk(KERN_INFO "UV: Map %s_HI 0x%lx - 0x%lx\n", id, paddr,
228 paddr + bytes);
229 if (map_type == map_uc)
230 init_extra_mapping_uc(paddr, bytes);
231 else
232 init_extra_mapping_wb(paddr, bytes);
233
234}
235static __init void map_gru_high(int max_pnode)
236{
237 union uvh_rh_gam_gru_overlay_config_mmr_u gru;
238 int shift = UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_SHFT;
239
240 gru.v = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR);
241 if (gru.s.enable)
242 map_high("GRU", gru.s.base, shift, map_wb);
243}
244
245static __init void map_config_high(int max_pnode)
246{
247 union uvh_rh_gam_cfg_overlay_config_mmr_u cfg;
248 int shift = UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_SHFT;
249
250 cfg.v = uv_read_local_mmr(UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR);
251 if (cfg.s.enable)
252 map_high("CONFIG", cfg.s.base, shift, map_uc);
253}
254
255static __init void map_mmr_high(int max_pnode)
256{
257 union uvh_rh_gam_mmr_overlay_config_mmr_u mmr;
258 int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT;
259
260 mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR);
261 if (mmr.s.enable)
262 map_high("MMR", mmr.s.base, shift, map_uc);
263}
264
265static __init void map_mmioh_high(int max_pnode)
266{
267 union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh;
268 int shift = UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_SHFT;
269
270 mmioh.v = uv_read_local_mmr(UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR);
271 if (mmioh.s.enable)
272 map_high("MMIOH", mmioh.s.base, shift, map_uc);
273}
274
170static __init void uv_system_init(void) 275static __init void uv_system_init(void)
171{ 276{
172 union uvh_si_addr_map_config_u m_n_config; 277 union uvh_si_addr_map_config_u m_n_config;
173 int bytes, nid, cpu, lcpu, nasid, last_nasid, blade; 278 union uvh_node_id_u node_id;
174 unsigned long mmr_base; 279 unsigned long gnode_upper, lowmem_redir_base, lowmem_redir_size;
280 int bytes, nid, cpu, lcpu, pnode, blade, i, j, m_val, n_val;
281 int max_pnode = 0;
282 unsigned long mmr_base, present;
283
284 map_low_mmrs();
175 285
176 m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG); 286 m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
287 m_val = m_n_config.s.m_skt;
288 n_val = m_n_config.s.n_skt;
177 mmr_base = 289 mmr_base =
178 uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) & 290 uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) &
179 ~UV_MMR_ENABLE; 291 ~UV_MMR_ENABLE;
180 printk(KERN_DEBUG "UV: global MMR base 0x%lx\n", mmr_base); 292 printk(KERN_DEBUG "UV: global MMR base 0x%lx\n", mmr_base);
181 293
182 last_nasid = -1; 294 for(i = 0; i < UVH_NODE_PRESENT_TABLE_DEPTH; i++)
183 for_each_possible_cpu(cpu) { 295 uv_possible_blades +=
184 nid = cpu_to_node(cpu); 296 hweight64(uv_read_local_mmr( UVH_NODE_PRESENT_TABLE + i * 8));
185 nasid = uv_apicid_to_nasid(per_cpu(x86_cpu_to_apicid, cpu));
186 if (nasid != last_nasid)
187 uv_possible_blades++;
188 last_nasid = nasid;
189 }
190 printk(KERN_DEBUG "UV: Found %d blades\n", uv_num_possible_blades()); 297 printk(KERN_DEBUG "UV: Found %d blades\n", uv_num_possible_blades());
191 298
192 bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades(); 299 bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades();
193 uv_blade_info = alloc_bootmem_pages(bytes); 300 uv_blade_info = alloc_bootmem_pages(bytes);
194 301
302 get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
303
195 bytes = sizeof(uv_node_to_blade[0]) * num_possible_nodes(); 304 bytes = sizeof(uv_node_to_blade[0]) * num_possible_nodes();
196 uv_node_to_blade = alloc_bootmem_pages(bytes); 305 uv_node_to_blade = alloc_bootmem_pages(bytes);
197 memset(uv_node_to_blade, 255, bytes); 306 memset(uv_node_to_blade, 255, bytes);
@@ -200,43 +309,62 @@ static __init void uv_system_init(void)
200 uv_cpu_to_blade = alloc_bootmem_pages(bytes); 309 uv_cpu_to_blade = alloc_bootmem_pages(bytes);
201 memset(uv_cpu_to_blade, 255, bytes); 310 memset(uv_cpu_to_blade, 255, bytes);
202 311
203 last_nasid = -1; 312 blade = 0;
204 blade = -1; 313 for (i = 0; i < UVH_NODE_PRESENT_TABLE_DEPTH; i++) {
205 lcpu = -1; 314 present = uv_read_local_mmr(UVH_NODE_PRESENT_TABLE + i * 8);
206 for_each_possible_cpu(cpu) { 315 for (j = 0; j < 64; j++) {
207 nid = cpu_to_node(cpu); 316 if (!test_bit(j, &present))
208 nasid = uv_apicid_to_nasid(per_cpu(x86_cpu_to_apicid, cpu)); 317 continue;
209 if (nasid != last_nasid) { 318 uv_blade_info[blade].pnode = (i * 64 + j);
210 blade++; 319 uv_blade_info[blade].nr_possible_cpus = 0;
211 lcpu = -1;
212 uv_blade_info[blade].nr_posible_cpus = 0;
213 uv_blade_info[blade].nr_online_cpus = 0; 320 uv_blade_info[blade].nr_online_cpus = 0;
321 blade++;
214 } 322 }
215 last_nasid = nasid; 323 }
216 lcpu++;
217 324
218 uv_cpu_hub_info(cpu)->m_val = m_n_config.s.m_skt; 325 node_id.v = uv_read_local_mmr(UVH_NODE_ID);
219 uv_cpu_hub_info(cpu)->n_val = m_n_config.s.n_skt; 326 gnode_upper = (((unsigned long)node_id.s.node_id) &
327 ~((1 << n_val) - 1)) << m_val;
328
329 for_each_present_cpu(cpu) {
330 nid = cpu_to_node(cpu);
331 pnode = uv_apicid_to_pnode(per_cpu(x86_cpu_to_apicid, cpu));
332 blade = boot_pnode_to_blade(pnode);
333 lcpu = uv_blade_info[blade].nr_possible_cpus;
334 uv_blade_info[blade].nr_possible_cpus++;
335
336 uv_cpu_hub_info(cpu)->lowmem_remap_base = lowmem_redir_base;
337 uv_cpu_hub_info(cpu)->lowmem_remap_top =
338 lowmem_redir_base + lowmem_redir_size;
339 uv_cpu_hub_info(cpu)->m_val = m_val;
340 uv_cpu_hub_info(cpu)->n_val = m_val;
220 uv_cpu_hub_info(cpu)->numa_blade_id = blade; 341 uv_cpu_hub_info(cpu)->numa_blade_id = blade;
221 uv_cpu_hub_info(cpu)->blade_processor_id = lcpu; 342 uv_cpu_hub_info(cpu)->blade_processor_id = lcpu;
222 uv_cpu_hub_info(cpu)->local_nasid = nasid; 343 uv_cpu_hub_info(cpu)->pnode = pnode;
223 uv_cpu_hub_info(cpu)->gnode_upper = 344 uv_cpu_hub_info(cpu)->pnode_mask = (1 << n_val) - 1;
224 nasid & ~((1 << uv_hub_info->n_val) - 1); 345 uv_cpu_hub_info(cpu)->gpa_mask = (1 << (m_val + n_val)) - 1;
346 uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper;
225 uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base; 347 uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base;
226 uv_cpu_hub_info(cpu)->coherency_domain_number = 0;/* ZZZ */ 348 uv_cpu_hub_info(cpu)->coherency_domain_number = 0;/* ZZZ */
227 uv_blade_info[blade].nasid = nasid;
228 uv_blade_info[blade].nr_posible_cpus++;
229 uv_node_to_blade[nid] = blade; 349 uv_node_to_blade[nid] = blade;
230 uv_cpu_to_blade[cpu] = blade; 350 uv_cpu_to_blade[cpu] = blade;
351 max_pnode = max(pnode, max_pnode);
231 352
232 printk(KERN_DEBUG "UV cpu %d, apicid 0x%x, nasid %d, nid %d\n", 353 printk(KERN_DEBUG "UV: cpu %d, apicid 0x%x, pnode %d, nid %d, "
233 cpu, per_cpu(x86_cpu_to_apicid, cpu), nasid, nid); 354 "lcpu %d, blade %d\n",
234 printk(KERN_DEBUG "UV lcpu %d, blade %d\n", lcpu, blade); 355 cpu, per_cpu(x86_cpu_to_apicid, cpu), pnode, nid,
356 lcpu, blade);
235 } 357 }
358
359 map_gru_high(max_pnode);
360 map_mmr_high(max_pnode);
361 map_config_high(max_pnode);
362 map_mmioh_high(max_pnode);
236} 363}
237 364
238/* 365/*
239 * Called on each cpu to initialize the per_cpu UV data area. 366 * Called on each cpu to initialize the per_cpu UV data area.
367 * ZZZ hotplug not supported yet
240 */ 368 */
241void __cpuinit uv_cpu_init(void) 369void __cpuinit uv_cpu_init(void)
242{ 370{
@@ -246,5 +374,5 @@ void __cpuinit uv_cpu_init(void)
246 uv_blade_info[uv_numa_blade_id()].nr_online_cpus++; 374 uv_blade_info[uv_numa_blade_id()].nr_online_cpus++;
247 375
248 if (get_uv_system_type() == UV_NON_UNIQUE_APIC) 376 if (get_uv_system_type() == UV_NON_UNIQUE_APIC)
249 set_x2apic_extra_bits(uv_hub_info->local_nasid); 377 set_x2apic_extra_bits(uv_hub_info->pnode);
250} 378}
diff --git a/arch/x86/kernel/geode_32.c b/arch/x86/kernel/geode_32.c
index e8edd63ab000..9b08e852fd1a 100644
--- a/arch/x86/kernel/geode_32.c
+++ b/arch/x86/kernel/geode_32.c
@@ -166,6 +166,8 @@ int geode_has_vsa2(void)
166 static int has_vsa2 = -1; 166 static int has_vsa2 = -1;
167 167
168 if (has_vsa2 == -1) { 168 if (has_vsa2 == -1) {
169 u16 val;
170
169 /* 171 /*
170 * The VSA has virtual registers that we can query for a 172 * The VSA has virtual registers that we can query for a
171 * signature. 173 * signature.
@@ -173,7 +175,8 @@ int geode_has_vsa2(void)
173 outw(VSA_VR_UNLOCK, VSA_VRC_INDEX); 175 outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
174 outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX); 176 outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
175 177
176 has_vsa2 = (inw(VSA_VRC_DATA) == VSA_SIG); 178 val = inw(VSA_VRC_DATA);
179 has_vsa2 = (val == AMD_VSA_SIG || val == GSW_VSA_SIG);
177 } 180 }
178 181
179 return has_vsa2; 182 return has_vsa2;
diff --git a/arch/x86/kernel/head.c b/arch/x86/kernel/head.c
new file mode 100644
index 000000000000..3e66bd364a9d
--- /dev/null
+++ b/arch/x86/kernel/head.c
@@ -0,0 +1,55 @@
1#include <linux/kernel.h>
2#include <linux/init.h>
3
4#include <asm/setup.h>
5#include <asm/bios_ebda.h>
6
7#define BIOS_LOWMEM_KILOBYTES 0x413
8
9/*
10 * The BIOS places the EBDA/XBDA at the top of conventional
11 * memory, and usually decreases the reported amount of
12 * conventional memory (int 0x12) too. This also contains a
13 * workaround for Dell systems that neglect to reserve EBDA.
14 * The same workaround also avoids a problem with the AMD768MPX
15 * chipset: reserve a page before VGA to prevent PCI prefetch
16 * into it (errata #56). Usually the page is reserved anyways,
17 * unless you have no PS/2 mouse plugged in.
18 */
19void __init reserve_ebda_region(void)
20{
21 unsigned int lowmem, ebda_addr;
22
23 /* To determine the position of the EBDA and the */
24 /* end of conventional memory, we need to look at */
25 /* the BIOS data area. In a paravirtual environment */
26 /* that area is absent. We'll just have to assume */
27 /* that the paravirt case can handle memory setup */
28 /* correctly, without our help. */
29 if (paravirt_enabled())
30 return;
31
32 /* end of low (conventional) memory */
33 lowmem = *(unsigned short *)__va(BIOS_LOWMEM_KILOBYTES);
34 lowmem <<= 10;
35
36 /* start of EBDA area */
37 ebda_addr = get_bios_ebda();
38
39 /* Fixup: bios puts an EBDA in the top 64K segment */
40 /* of conventional memory, but does not adjust lowmem. */
41 if ((lowmem - ebda_addr) <= 0x10000)
42 lowmem = ebda_addr;
43
44 /* Fixup: bios does not report an EBDA at all. */
45 /* Some old Dells seem to need 4k anyhow (bugzilla 2990) */
46 if ((ebda_addr == 0) && (lowmem >= 0x9f000))
47 lowmem = 0x9f000;
48
49 /* Paranoia: should never happen, but... */
50 if ((lowmem == 0) || (lowmem >= 0x100000))
51 lowmem = 0x9f000;
52
53 /* reserve all memory between lowmem and the 1MB mark */
54 reserve_early_overlap_ok(lowmem, 0x100000, "BIOS reserved");
55}
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 3db059058927..fa1d25dd83e3 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -8,7 +8,34 @@
8#include <linux/init.h> 8#include <linux/init.h>
9#include <linux/start_kernel.h> 9#include <linux/start_kernel.h>
10 10
11#include <asm/setup.h>
12#include <asm/sections.h>
13#include <asm/e820.h>
14#include <asm/bios_ebda.h>
15
11void __init i386_start_kernel(void) 16void __init i386_start_kernel(void)
12{ 17{
18 reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS");
19
20#ifdef CONFIG_BLK_DEV_INITRD
21 /* Reserve INITRD */
22 if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
23 u64 ramdisk_image = boot_params.hdr.ramdisk_image;
24 u64 ramdisk_size = boot_params.hdr.ramdisk_size;
25 u64 ramdisk_end = ramdisk_image + ramdisk_size;
26 reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
27 }
28#endif
29 reserve_early(init_pg_tables_start, init_pg_tables_end,
30 "INIT_PG_TABLE");
31
32 reserve_ebda_region();
33
34 /*
35 * At this point everything still needed from the boot loader
36 * or BIOS or kernel text should be early reserved or marked not
37 * RAM in e820. All other memory is free game.
38 */
39
13 start_kernel(); 40 start_kernel();
14} 41}
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index e25c57b8aa84..c97819829146 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -25,6 +25,20 @@
25#include <asm/e820.h> 25#include <asm/e820.h>
26#include <asm/bios_ebda.h> 26#include <asm/bios_ebda.h>
27 27
28/* boot cpu pda */
29static struct x8664_pda _boot_cpu_pda __read_mostly;
30
31#ifdef CONFIG_SMP
32/*
33 * We install an empty cpu_pda pointer table to indicate to early users
34 * (numa_set_node) that the cpu_pda pointer table for cpus other than
35 * the boot cpu is not yet setup.
36 */
37static struct x8664_pda *__cpu_pda[NR_CPUS] __initdata;
38#else
39static struct x8664_pda *__cpu_pda[NR_CPUS] __read_mostly;
40#endif
41
28static void __init zap_identity_mappings(void) 42static void __init zap_identity_mappings(void)
29{ 43{
30 pgd_t *pgd = pgd_offset_k(0UL); 44 pgd_t *pgd = pgd_offset_k(0UL);
@@ -51,74 +65,6 @@ static void __init copy_bootdata(char *real_mode_data)
51 } 65 }
52} 66}
53 67
54#define BIOS_LOWMEM_KILOBYTES 0x413
55
56/*
57 * The BIOS places the EBDA/XBDA at the top of conventional
58 * memory, and usually decreases the reported amount of
59 * conventional memory (int 0x12) too. This also contains a
60 * workaround for Dell systems that neglect to reserve EBDA.
61 * The same workaround also avoids a problem with the AMD768MPX
62 * chipset: reserve a page before VGA to prevent PCI prefetch
63 * into it (errata #56). Usually the page is reserved anyways,
64 * unless you have no PS/2 mouse plugged in.
65 */
66static void __init reserve_ebda_region(void)
67{
68 unsigned int lowmem, ebda_addr;
69
70 /* To determine the position of the EBDA and the */
71 /* end of conventional memory, we need to look at */
72 /* the BIOS data area. In a paravirtual environment */
73 /* that area is absent. We'll just have to assume */
74 /* that the paravirt case can handle memory setup */
75 /* correctly, without our help. */
76 if (paravirt_enabled())
77 return;
78
79 /* end of low (conventional) memory */
80 lowmem = *(unsigned short *)__va(BIOS_LOWMEM_KILOBYTES);
81 lowmem <<= 10;
82
83 /* start of EBDA area */
84 ebda_addr = get_bios_ebda();
85
86 /* Fixup: bios puts an EBDA in the top 64K segment */
87 /* of conventional memory, but does not adjust lowmem. */
88 if ((lowmem - ebda_addr) <= 0x10000)
89 lowmem = ebda_addr;
90
91 /* Fixup: bios does not report an EBDA at all. */
92 /* Some old Dells seem to need 4k anyhow (bugzilla 2990) */
93 if ((ebda_addr == 0) && (lowmem >= 0x9f000))
94 lowmem = 0x9f000;
95
96 /* Paranoia: should never happen, but... */
97 if ((lowmem == 0) || (lowmem >= 0x100000))
98 lowmem = 0x9f000;
99
100 /* reserve all memory between lowmem and the 1MB mark */
101 reserve_early(lowmem, 0x100000, "BIOS reserved");
102}
103
104static void __init reserve_setup_data(void)
105{
106 struct setup_data *data;
107 unsigned long pa_data;
108 char buf[32];
109
110 if (boot_params.hdr.version < 0x0209)
111 return;
112 pa_data = boot_params.hdr.setup_data;
113 while (pa_data) {
114 data = early_ioremap(pa_data, sizeof(*data));
115 sprintf(buf, "setup data %x", data->type);
116 reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
117 pa_data = data->next;
118 early_iounmap(data, sizeof(*data));
119 }
120}
121
122void __init x86_64_start_kernel(char * real_mode_data) 68void __init x86_64_start_kernel(char * real_mode_data)
123{ 69{
124 int i; 70 int i;
@@ -156,10 +102,17 @@ void __init x86_64_start_kernel(char * real_mode_data)
156 102
157 early_printk("Kernel alive\n"); 103 early_printk("Kernel alive\n");
158 104
159 for (i = 0; i < NR_CPUS; i++) 105 _cpu_pda = __cpu_pda;
160 cpu_pda(i) = &boot_cpu_pda[i]; 106 cpu_pda(0) = &_boot_cpu_pda;
161
162 pda_init(0); 107 pda_init(0);
108
109 early_printk("Kernel really alive\n");
110
111 x86_64_start_reservations(real_mode_data);
112}
113
114void __init x86_64_start_reservations(char *real_mode_data)
115{
163 copy_bootdata(__va(real_mode_data)); 116 copy_bootdata(__va(real_mode_data));
164 117
165 reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS"); 118 reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS");
@@ -175,7 +128,6 @@ void __init x86_64_start_kernel(char * real_mode_data)
175#endif 128#endif
176 129
177 reserve_ebda_region(); 130 reserve_ebda_region();
178 reserve_setup_data();
179 131
180 /* 132 /*
181 * At this point everything still needed from the boot loader 133 * At this point everything still needed from the boot loader
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index b2cc73768a9d..f67e93441caf 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -189,11 +189,12 @@ default_entry:
189 * this stage. 189 * this stage.
190 */ 190 */
191 191
192#define KPMDS ((0x100000000-__PAGE_OFFSET) >> 30) /* Number of kernel PMDs */ 192#define KPMDS (((-__PAGE_OFFSET) >> 30) & 3) /* Number of kernel PMDs */
193 193
194 xorl %ebx,%ebx /* %ebx is kept at zero */ 194 xorl %ebx,%ebx /* %ebx is kept at zero */
195 195
196 movl $pa(pg0), %edi 196 movl $pa(pg0), %edi
197 movl %edi, pa(init_pg_tables_start)
197 movl $pa(swapper_pg_pmd), %edx 198 movl $pa(swapper_pg_pmd), %edx
198 movl $PTE_ATTR, %eax 199 movl $PTE_ATTR, %eax
19910: 20010:
@@ -219,6 +220,8 @@ default_entry:
219 jb 10b 220 jb 10b
2201: 2211:
221 movl %edi,pa(init_pg_tables_end) 222 movl %edi,pa(init_pg_tables_end)
223 shrl $12, %eax
224 movl %eax, pa(max_pfn_mapped)
222 225
223 /* Do early initialization of the fixmap area */ 226 /* Do early initialization of the fixmap area */
224 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax 227 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax
@@ -228,6 +231,7 @@ default_entry:
228page_pde_offset = (__PAGE_OFFSET >> 20); 231page_pde_offset = (__PAGE_OFFSET >> 20);
229 232
230 movl $pa(pg0), %edi 233 movl $pa(pg0), %edi
234 movl %edi, pa(init_pg_tables_start)
231 movl $pa(swapper_pg_dir), %edx 235 movl $pa(swapper_pg_dir), %edx
232 movl $PTE_ATTR, %eax 236 movl $PTE_ATTR, %eax
23310: 23710:
@@ -249,6 +253,8 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
249 cmpl %ebp,%eax 253 cmpl %ebp,%eax
250 jb 10b 254 jb 10b
251 movl %edi,pa(init_pg_tables_end) 255 movl %edi,pa(init_pg_tables_end)
256 shrl $12, %eax
257 movl %eax, pa(max_pfn_mapped)
252 258
253 /* Do early initialization of the fixmap area */ 259 /* Do early initialization of the fixmap area */
254 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax 260 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax
@@ -446,10 +452,13 @@ is386: movl $2,%ecx # set MP
446 je 1f 452 je 1f
447 movl $(__KERNEL_PERCPU), %eax 453 movl $(__KERNEL_PERCPU), %eax
448 movl %eax,%fs # set this cpu's percpu 454 movl %eax,%fs # set this cpu's percpu
449 jmp initialize_secondary # all other CPUs call initialize_secondary 455 movl (stack_start), %esp
4501: 4561:
451#endif /* CONFIG_SMP */ 457#endif /* CONFIG_SMP */
452 jmp i386_start_kernel 458 jmp *(initial_code)
459.align 4
460ENTRY(initial_code)
461 .long i386_start_kernel
453 462
454/* 463/*
455 * We depend on ET to be correct. This checks for 287/387. 464 * We depend on ET to be correct. This checks for 287/387.
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 10a1955bb1d1..b07ac7b217cb 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -18,6 +18,7 @@
18#include <asm/page.h> 18#include <asm/page.h>
19#include <asm/msr.h> 19#include <asm/msr.h>
20#include <asm/cache.h> 20#include <asm/cache.h>
21#include <asm/processor-flags.h>
21 22
22#ifdef CONFIG_PARAVIRT 23#ifdef CONFIG_PARAVIRT
23#include <asm/asm-offsets.h> 24#include <asm/asm-offsets.h>
@@ -31,6 +32,13 @@
31 * 32 *
32 */ 33 */
33 34
35#define pud_index(x) (((x) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
36
37L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
38L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
39L4_START_KERNEL = pgd_index(__START_KERNEL_map)
40L3_START_KERNEL = pud_index(__START_KERNEL_map)
41
34 .text 42 .text
35 .section .text.head 43 .section .text.head
36 .code64 44 .code64
@@ -76,8 +84,8 @@ startup_64:
76 /* Fixup the physical addresses in the page table 84 /* Fixup the physical addresses in the page table
77 */ 85 */
78 addq %rbp, init_level4_pgt + 0(%rip) 86 addq %rbp, init_level4_pgt + 0(%rip)
79 addq %rbp, init_level4_pgt + (258*8)(%rip) 87 addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
80 addq %rbp, init_level4_pgt + (511*8)(%rip) 88 addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
81 89
82 addq %rbp, level3_ident_pgt + 0(%rip) 90 addq %rbp, level3_ident_pgt + 0(%rip)
83 91
@@ -128,7 +136,7 @@ ident_complete:
128 /* Fixup phys_base */ 136 /* Fixup phys_base */
129 addq %rbp, phys_base(%rip) 137 addq %rbp, phys_base(%rip)
130 138
131#ifdef CONFIG_SMP 139#ifdef CONFIG_X86_TRAMPOLINE
132 addq %rbp, trampoline_level4_pgt + 0(%rip) 140 addq %rbp, trampoline_level4_pgt + 0(%rip)
133 addq %rbp, trampoline_level4_pgt + (511*8)(%rip) 141 addq %rbp, trampoline_level4_pgt + (511*8)(%rip)
134#endif 142#endif
@@ -154,9 +162,7 @@ ENTRY(secondary_startup_64)
154 */ 162 */
155 163
156 /* Enable PAE mode and PGE */ 164 /* Enable PAE mode and PGE */
157 xorq %rax, %rax 165 movl $(X86_CR4_PAE | X86_CR4_PGE), %eax
158 btsq $5, %rax
159 btsq $7, %rax
160 movq %rax, %cr4 166 movq %rax, %cr4
161 167
162 /* Setup early boot stage 4 level pagetables. */ 168 /* Setup early boot stage 4 level pagetables. */
@@ -184,19 +190,15 @@ ENTRY(secondary_startup_64)
1841: wrmsr /* Make changes effective */ 1901: wrmsr /* Make changes effective */
185 191
186 /* Setup cr0 */ 192 /* Setup cr0 */
187#define CR0_PM 1 /* protected mode */ 193#define CR0_STATE (X86_CR0_PE | X86_CR0_MP | X86_CR0_ET | \
188#define CR0_MP (1<<1) 194 X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | \
189#define CR0_ET (1<<4) 195 X86_CR0_PG)
190#define CR0_NE (1<<5) 196 movl $CR0_STATE, %eax
191#define CR0_WP (1<<16)
192#define CR0_AM (1<<18)
193#define CR0_PAGING (1<<31)
194 movl $CR0_PM|CR0_MP|CR0_ET|CR0_NE|CR0_WP|CR0_AM|CR0_PAGING,%eax
195 /* Make changes effective */ 197 /* Make changes effective */
196 movq %rax, %cr0 198 movq %rax, %cr0
197 199
198 /* Setup a boot time stack */ 200 /* Setup a boot time stack */
199 movq init_rsp(%rip),%rsp 201 movq stack_start(%rip),%rsp
200 202
201 /* zero EFLAGS after setting rsp */ 203 /* zero EFLAGS after setting rsp */
202 pushq $0 204 pushq $0
@@ -208,7 +210,7 @@ ENTRY(secondary_startup_64)
208 * addresses where we're currently running on. We have to do that here 210 * addresses where we're currently running on. We have to do that here
209 * because in 32bit we couldn't load a 64bit linear address. 211 * because in 32bit we couldn't load a 64bit linear address.
210 */ 212 */
211 lgdt cpu_gdt_descr(%rip) 213 lgdt early_gdt_descr(%rip)
212 214
213 /* set up data segments. actually 0 would do too */ 215 /* set up data segments. actually 0 would do too */
214 movl $__KERNEL_DS,%eax 216 movl $__KERNEL_DS,%eax
@@ -257,8 +259,9 @@ ENTRY(secondary_startup_64)
257 .quad x86_64_start_kernel 259 .quad x86_64_start_kernel
258 __FINITDATA 260 __FINITDATA
259 261
260 ENTRY(init_rsp) 262 ENTRY(stack_start)
261 .quad init_thread_union+THREAD_SIZE-8 263 .quad init_thread_union+THREAD_SIZE-8
264 .word 0
262 265
263bad_address: 266bad_address:
264 jmp bad_address 267 jmp bad_address
@@ -327,11 +330,11 @@ early_idt_ripmsg:
327ENTRY(name) 330ENTRY(name)
328 331
329/* Automate the creation of 1 to 1 mapping pmd entries */ 332/* Automate the creation of 1 to 1 mapping pmd entries */
330#define PMDS(START, PERM, COUNT) \ 333#define PMDS(START, PERM, COUNT) \
331 i = 0 ; \ 334 i = 0 ; \
332 .rept (COUNT) ; \ 335 .rept (COUNT) ; \
333 .quad (START) + (i << 21) + (PERM) ; \ 336 .quad (START) + (i << PMD_SHIFT) + (PERM) ; \
334 i = i + 1 ; \ 337 i = i + 1 ; \
335 .endr 338 .endr
336 339
337 /* 340 /*
@@ -342,9 +345,9 @@ ENTRY(name)
342 */ 345 */
343NEXT_PAGE(init_level4_pgt) 346NEXT_PAGE(init_level4_pgt)
344 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE 347 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
345 .fill 257,8,0 348 .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
346 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE 349 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
347 .fill 252,8,0 350 .org init_level4_pgt + L4_START_KERNEL*8, 0
348 /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ 351 /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
349 .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE 352 .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
350 353
@@ -353,7 +356,7 @@ NEXT_PAGE(level3_ident_pgt)
353 .fill 511,8,0 356 .fill 511,8,0
354 357
355NEXT_PAGE(level3_kernel_pgt) 358NEXT_PAGE(level3_kernel_pgt)
356 .fill 510,8,0 359 .fill L3_START_KERNEL,8,0
357 /* (2^48-(2*1024*1024*1024)-((2^39)*511))/(2^30) = 510 */ 360 /* (2^48-(2*1024*1024*1024)-((2^39)*511))/(2^30) = 510 */
358 .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE 361 .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
359 .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE 362 .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
@@ -384,7 +387,7 @@ NEXT_PAGE(level2_kernel_pgt)
384 * If you want to increase this then increase MODULES_VADDR 387 * If you want to increase this then increase MODULES_VADDR
385 * too.) 388 * too.)
386 */ 389 */
387 PMDS(0, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL, 390 PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
388 KERNEL_IMAGE_SIZE/PMD_SIZE) 391 KERNEL_IMAGE_SIZE/PMD_SIZE)
389 392
390NEXT_PAGE(level2_spare_pgt) 393NEXT_PAGE(level2_spare_pgt)
@@ -395,54 +398,16 @@ NEXT_PAGE(level2_spare_pgt)
395 398
396 .data 399 .data
397 .align 16 400 .align 16
398 .globl cpu_gdt_descr 401 .globl early_gdt_descr
399cpu_gdt_descr: 402early_gdt_descr:
400 .word gdt_end-cpu_gdt_table-1 403 .word GDT_ENTRIES*8-1
401gdt: 404 .quad per_cpu__gdt_page
402 .quad cpu_gdt_table
403#ifdef CONFIG_SMP
404 .rept NR_CPUS-1
405 .word 0
406 .quad 0
407 .endr
408#endif
409 405
410ENTRY(phys_base) 406ENTRY(phys_base)
411 /* This must match the first entry in level2_kernel_pgt */ 407 /* This must match the first entry in level2_kernel_pgt */
412 .quad 0x0000000000000000 408 .quad 0x0000000000000000
413 409
414/* We need valid kernel segments for data and code in long mode too
415 * IRET will check the segment types kkeil 2000/10/28
416 * Also sysret mandates a special GDT layout
417 */
418
419 .section .data.page_aligned, "aw"
420 .align PAGE_SIZE
421
422/* The TLS descriptors are currently at a different place compared to i386.
423 Hopefully nobody expects them at a fixed place (Wine?) */
424 410
425ENTRY(cpu_gdt_table)
426 .quad 0x0000000000000000 /* NULL descriptor */
427 .quad 0x00cf9b000000ffff /* __KERNEL32_CS */
428 .quad 0x00af9b000000ffff /* __KERNEL_CS */
429 .quad 0x00cf93000000ffff /* __KERNEL_DS */
430 .quad 0x00cffb000000ffff /* __USER32_CS */
431 .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */
432 .quad 0x00affb000000ffff /* __USER_CS */
433 .quad 0x0 /* unused */
434 .quad 0,0 /* TSS */
435 .quad 0,0 /* LDT */
436 .quad 0,0,0 /* three TLS descriptors */
437 .quad 0x0000f40000000000 /* node/CPU stored in limit */
438gdt_end:
439 /* asm/segment.h:GDT_ENTRIES must match this */
440 /* This should be a multiple of the cache line size */
441 /* GDTs of other CPUs are now dynamically allocated */
442
443 /* zero the remaining page */
444 .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
445
446 .section .bss, "aw", @nobits 411 .section .bss, "aw", @nobits
447 .align L1_CACHE_BYTES 412 .align L1_CACHE_BYTES
448ENTRY(idt_table) 413ENTRY(idt_table)
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 9b5cfcdfc426..0ea6a19bfdfe 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -17,7 +17,7 @@
17 17
18/* FSEC = 10^-15 18/* FSEC = 10^-15
19 NSEC = 10^-9 */ 19 NSEC = 10^-9 */
20#define FSEC_PER_NSEC 1000000 20#define FSEC_PER_NSEC 1000000L
21 21
22/* 22/*
23 * HPET address is set in acpi/boot.c, when an ACPI entry exists 23 * HPET address is set in acpi/boot.c, when an ACPI entry exists
@@ -36,26 +36,15 @@ static inline void hpet_writel(unsigned long d, unsigned long a)
36} 36}
37 37
38#ifdef CONFIG_X86_64 38#ifdef CONFIG_X86_64
39
40#include <asm/pgtable.h> 39#include <asm/pgtable.h>
41 40#endif
42static inline void hpet_set_mapping(void)
43{
44 set_fixmap_nocache(FIX_HPET_BASE, hpet_address);
45 __set_fixmap(VSYSCALL_HPET, hpet_address, PAGE_KERNEL_VSYSCALL_NOCACHE);
46 hpet_virt_address = (void __iomem *)fix_to_virt(FIX_HPET_BASE);
47}
48
49static inline void hpet_clear_mapping(void)
50{
51 hpet_virt_address = NULL;
52}
53
54#else
55 41
56static inline void hpet_set_mapping(void) 42static inline void hpet_set_mapping(void)
57{ 43{
58 hpet_virt_address = ioremap_nocache(hpet_address, HPET_MMAP_SIZE); 44 hpet_virt_address = ioremap_nocache(hpet_address, HPET_MMAP_SIZE);
45#ifdef CONFIG_X86_64
46 __set_fixmap(VSYSCALL_HPET, hpet_address, PAGE_KERNEL_VSYSCALL_NOCACHE);
47#endif
59} 48}
60 49
61static inline void hpet_clear_mapping(void) 50static inline void hpet_clear_mapping(void)
@@ -63,7 +52,6 @@ static inline void hpet_clear_mapping(void)
63 iounmap(hpet_virt_address); 52 iounmap(hpet_virt_address);
64 hpet_virt_address = NULL; 53 hpet_virt_address = NULL;
65} 54}
66#endif
67 55
68/* 56/*
69 * HPET command line enable / disable 57 * HPET command line enable / disable
@@ -206,20 +194,19 @@ static void hpet_enable_legacy_int(void)
206 194
207static void hpet_legacy_clockevent_register(void) 195static void hpet_legacy_clockevent_register(void)
208{ 196{
209 uint64_t hpet_freq;
210
211 /* Start HPET legacy interrupts */ 197 /* Start HPET legacy interrupts */
212 hpet_enable_legacy_int(); 198 hpet_enable_legacy_int();
213 199
214 /* 200 /*
215 * The period is a femto seconds value. We need to calculate the 201 * The mult factor is defined as (include/linux/clockchips.h)
216 * scaled math multiplication factor for nanosecond to hpet tick 202 * mult/2^shift = cyc/ns (in contrast to ns/cyc in clocksource.h)
217 * conversion. 203 * hpet_period is in units of femtoseconds (per cycle), so
204 * mult/2^shift = cyc/ns = 10^6/hpet_period
205 * mult = (10^6 * 2^shift)/hpet_period
206 * mult = (FSEC_PER_NSEC << hpet_clockevent.shift)/hpet_period
218 */ 207 */
219 hpet_freq = 1000000000000000ULL; 208 hpet_clockevent.mult = div_sc((unsigned long) FSEC_PER_NSEC,
220 do_div(hpet_freq, hpet_period); 209 hpet_period, hpet_clockevent.shift);
221 hpet_clockevent.mult = div_sc((unsigned long) hpet_freq,
222 NSEC_PER_SEC, hpet_clockevent.shift);
223 /* Calculate the min / max delta */ 210 /* Calculate the min / max delta */
224 hpet_clockevent.max_delta_ns = clockevent_delta2ns(0x7FFFFFFF, 211 hpet_clockevent.max_delta_ns = clockevent_delta2ns(0x7FFFFFFF,
225 &hpet_clockevent); 212 &hpet_clockevent);
@@ -324,7 +311,7 @@ static struct clocksource clocksource_hpet = {
324 311
325static int hpet_clocksource_register(void) 312static int hpet_clocksource_register(void)
326{ 313{
327 u64 tmp, start, now; 314 u64 start, now;
328 cycle_t t1; 315 cycle_t t1;
329 316
330 /* Start the counter */ 317 /* Start the counter */
@@ -351,21 +338,15 @@ static int hpet_clocksource_register(void)
351 return -ENODEV; 338 return -ENODEV;
352 } 339 }
353 340
354 /* Initialize and register HPET clocksource 341 /*
355 * 342 * The definition of mult is (include/linux/clocksource.h)
356 * hpet period is in femto seconds per cycle 343 * mult/2^shift = ns/cyc and hpet_period is in units of fsec/cyc
357 * so we need to convert this to ns/cyc units 344 * so we first need to convert hpet_period to ns/cyc units:
358 * approximated by mult/2^shift 345 * mult/2^shift = ns/cyc = hpet_period/10^6
359 * 346 * mult = (hpet_period * 2^shift)/10^6
360 * fsec/cyc * 1nsec/1000000fsec = nsec/cyc = mult/2^shift 347 * mult = (hpet_period << shift)/FSEC_PER_NSEC
361 * fsec/cyc * 1ns/1000000fsec * 2^shift = mult
362 * fsec/cyc * 2^shift * 1nsec/1000000fsec = mult
363 * (fsec/cyc << shift)/1000000 = mult
364 * (hpet_period << shift)/FSEC_PER_NSEC = mult
365 */ 348 */
366 tmp = (u64)hpet_period << HPET_SHIFT; 349 clocksource_hpet.mult = div_sc(hpet_period, FSEC_PER_NSEC, HPET_SHIFT);
367 do_div(tmp, FSEC_PER_NSEC);
368 clocksource_hpet.mult = (u32)tmp;
369 350
370 clocksource_register(&clocksource_hpet); 351 clocksource_register(&clocksource_hpet);
371 352
diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
index deb43785e923..dd7ebee446af 100644
--- a/arch/x86/kernel/i386_ksyms_32.c
+++ b/arch/x86/kernel/i386_ksyms_32.c
@@ -1,7 +1,14 @@
1#include <linux/module.h> 1#include <linux/module.h>
2
2#include <asm/checksum.h> 3#include <asm/checksum.h>
3#include <asm/desc.h>
4#include <asm/pgtable.h> 4#include <asm/pgtable.h>
5#include <asm/desc.h>
6#include <asm/ftrace.h>
7
8#ifdef CONFIG_FTRACE
9/* mcount is defined in assembly */
10EXPORT_SYMBOL(mcount);
11#endif
5 12
6/* Networking helper routines. */ 13/* Networking helper routines. */
7EXPORT_SYMBOL(csum_partial_copy_generic); 14EXPORT_SYMBOL(csum_partial_copy_generic);
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index e03cc952f233..eb9ddd8efb82 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -56,6 +56,11 @@ void __cpuinit mxcsr_feature_mask_init(void)
56 56
57void __init init_thread_xstate(void) 57void __init init_thread_xstate(void)
58{ 58{
59 if (!HAVE_HWFP) {
60 xstate_size = sizeof(struct i387_soft_struct);
61 return;
62 }
63
59 if (cpu_has_fxsr) 64 if (cpu_has_fxsr)
60 xstate_size = sizeof(struct i387_fxsave_struct); 65 xstate_size = sizeof(struct i387_fxsave_struct);
61#ifdef CONFIG_X86_32 66#ifdef CONFIG_X86_32
@@ -94,7 +99,7 @@ void __cpuinit fpu_init(void)
94int init_fpu(struct task_struct *tsk) 99int init_fpu(struct task_struct *tsk)
95{ 100{
96 if (tsk_used_math(tsk)) { 101 if (tsk_used_math(tsk)) {
97 if (tsk == current) 102 if (HAVE_HWFP && tsk == current)
98 unlazy_fpu(tsk); 103 unlazy_fpu(tsk);
99 return 0; 104 return 0;
100 } 105 }
@@ -109,6 +114,15 @@ int init_fpu(struct task_struct *tsk)
109 return -ENOMEM; 114 return -ENOMEM;
110 } 115 }
111 116
117#ifdef CONFIG_X86_32
118 if (!HAVE_HWFP) {
119 memset(tsk->thread.xstate, 0, xstate_size);
120 finit();
121 set_stopped_child_used_math(tsk);
122 return 0;
123 }
124#endif
125
112 if (cpu_has_fxsr) { 126 if (cpu_has_fxsr) {
113 struct i387_fxsave_struct *fx = &tsk->thread.xstate->fxsave; 127 struct i387_fxsave_struct *fx = &tsk->thread.xstate->fxsave;
114 128
@@ -330,13 +344,13 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
330 struct user_i387_ia32_struct env; 344 struct user_i387_ia32_struct env;
331 int ret; 345 int ret;
332 346
333 if (!HAVE_HWFP)
334 return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
335
336 ret = init_fpu(target); 347 ret = init_fpu(target);
337 if (ret) 348 if (ret)
338 return ret; 349 return ret;
339 350
351 if (!HAVE_HWFP)
352 return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
353
340 if (!cpu_has_fxsr) { 354 if (!cpu_has_fxsr) {
341 return user_regset_copyout(&pos, &count, &kbuf, &ubuf, 355 return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
342 &target->thread.xstate->fsave, 0, 356 &target->thread.xstate->fsave, 0,
@@ -360,15 +374,15 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
360 struct user_i387_ia32_struct env; 374 struct user_i387_ia32_struct env;
361 int ret; 375 int ret;
362 376
363 if (!HAVE_HWFP)
364 return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf);
365
366 ret = init_fpu(target); 377 ret = init_fpu(target);
367 if (ret) 378 if (ret)
368 return ret; 379 return ret;
369 380
370 set_stopped_child_used_math(target); 381 set_stopped_child_used_math(target);
371 382
383 if (!HAVE_HWFP)
384 return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf);
385
372 if (!cpu_has_fxsr) { 386 if (!cpu_has_fxsr) {
373 return user_regset_copyin(&pos, &count, &kbuf, &ubuf, 387 return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
374 &target->thread.xstate->fsave, 0, -1); 388 &target->thread.xstate->fsave, 0, -1);
@@ -474,18 +488,18 @@ static int restore_i387_fxsave(struct _fpstate_ia32 __user *buf)
474int restore_i387_ia32(struct _fpstate_ia32 __user *buf) 488int restore_i387_ia32(struct _fpstate_ia32 __user *buf)
475{ 489{
476 int err; 490 int err;
491 struct task_struct *tsk = current;
477 492
478 if (HAVE_HWFP) { 493 if (HAVE_HWFP)
479 struct task_struct *tsk = current;
480
481 clear_fpu(tsk); 494 clear_fpu(tsk);
482 495
483 if (!used_math()) { 496 if (!used_math()) {
484 err = init_fpu(tsk); 497 err = init_fpu(tsk);
485 if (err) 498 if (err)
486 return err; 499 return err;
487 } 500 }
488 501
502 if (HAVE_HWFP) {
489 if (cpu_has_fxsr) 503 if (cpu_has_fxsr)
490 err = restore_i387_fxsave(buf); 504 err = restore_i387_fxsave(buf);
491 else 505 else
diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259.c
index fe631967d625..dc92b49d9204 100644
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259.c
@@ -1,8 +1,10 @@
1#include <linux/linkage.h>
1#include <linux/errno.h> 2#include <linux/errno.h>
2#include <linux/signal.h> 3#include <linux/signal.h>
3#include <linux/sched.h> 4#include <linux/sched.h>
4#include <linux/ioport.h> 5#include <linux/ioport.h>
5#include <linux/interrupt.h> 6#include <linux/interrupt.h>
7#include <linux/timex.h>
6#include <linux/slab.h> 8#include <linux/slab.h>
7#include <linux/random.h> 9#include <linux/random.h>
8#include <linux/init.h> 10#include <linux/init.h>
@@ -10,10 +12,12 @@
10#include <linux/sysdev.h> 12#include <linux/sysdev.h>
11#include <linux/bitops.h> 13#include <linux/bitops.h>
12 14
15#include <asm/acpi.h>
13#include <asm/atomic.h> 16#include <asm/atomic.h>
14#include <asm/system.h> 17#include <asm/system.h>
15#include <asm/io.h> 18#include <asm/io.h>
16#include <asm/timer.h> 19#include <asm/timer.h>
20#include <asm/hw_irq.h>
17#include <asm/pgtable.h> 21#include <asm/pgtable.h>
18#include <asm/delay.h> 22#include <asm/delay.h>
19#include <asm/desc.h> 23#include <asm/desc.h>
@@ -32,7 +36,7 @@ static int i8259A_auto_eoi;
32DEFINE_SPINLOCK(i8259A_lock); 36DEFINE_SPINLOCK(i8259A_lock);
33static void mask_and_ack_8259A(unsigned int); 37static void mask_and_ack_8259A(unsigned int);
34 38
35static struct irq_chip i8259A_chip = { 39struct irq_chip i8259A_chip = {
36 .name = "XT-PIC", 40 .name = "XT-PIC",
37 .mask = disable_8259A_irq, 41 .mask = disable_8259A_irq,
38 .disable = disable_8259A_irq, 42 .disable = disable_8259A_irq,
@@ -125,14 +129,14 @@ static inline int i8259A_irq_real(unsigned int irq)
125 int irqmask = 1<<irq; 129 int irqmask = 1<<irq;
126 130
127 if (irq < 8) { 131 if (irq < 8) {
128 outb(0x0B,PIC_MASTER_CMD); /* ISR register */ 132 outb(0x0B, PIC_MASTER_CMD); /* ISR register */
129 value = inb(PIC_MASTER_CMD) & irqmask; 133 value = inb(PIC_MASTER_CMD) & irqmask;
130 outb(0x0A,PIC_MASTER_CMD); /* back to the IRR register */ 134 outb(0x0A, PIC_MASTER_CMD); /* back to the IRR register */
131 return value; 135 return value;
132 } 136 }
133 outb(0x0B,PIC_SLAVE_CMD); /* ISR register */ 137 outb(0x0B, PIC_SLAVE_CMD); /* ISR register */
134 value = inb(PIC_SLAVE_CMD) & (irqmask >> 8); 138 value = inb(PIC_SLAVE_CMD) & (irqmask >> 8);
135 outb(0x0A,PIC_SLAVE_CMD); /* back to the IRR register */ 139 outb(0x0A, PIC_SLAVE_CMD); /* back to the IRR register */
136 return value; 140 return value;
137} 141}
138 142
@@ -171,12 +175,14 @@ handle_real_irq:
171 if (irq & 8) { 175 if (irq & 8) {
172 inb(PIC_SLAVE_IMR); /* DUMMY - (do we need this?) */ 176 inb(PIC_SLAVE_IMR); /* DUMMY - (do we need this?) */
173 outb(cached_slave_mask, PIC_SLAVE_IMR); 177 outb(cached_slave_mask, PIC_SLAVE_IMR);
174 outb(0x60+(irq&7),PIC_SLAVE_CMD);/* 'Specific EOI' to slave */ 178 /* 'Specific EOI' to slave */
175 outb(0x60+PIC_CASCADE_IR,PIC_MASTER_CMD); /* 'Specific EOI' to master-IRQ2 */ 179 outb(0x60+(irq&7), PIC_SLAVE_CMD);
180 /* 'Specific EOI' to master-IRQ2 */
181 outb(0x60+PIC_CASCADE_IR, PIC_MASTER_CMD);
176 } else { 182 } else {
177 inb(PIC_MASTER_IMR); /* DUMMY - (do we need this?) */ 183 inb(PIC_MASTER_IMR); /* DUMMY - (do we need this?) */
178 outb(cached_master_mask, PIC_MASTER_IMR); 184 outb(cached_master_mask, PIC_MASTER_IMR);
179 outb(0x60+irq,PIC_MASTER_CMD); /* 'Specific EOI to master */ 185 outb(0x60+irq, PIC_MASTER_CMD); /* 'Specific EOI to master */
180 } 186 }
181 spin_unlock_irqrestore(&i8259A_lock, flags); 187 spin_unlock_irqrestore(&i8259A_lock, flags);
182 return; 188 return;
@@ -199,7 +205,8 @@ spurious_8259A_irq:
199 * lets ACK and report it. [once per IRQ] 205 * lets ACK and report it. [once per IRQ]
200 */ 206 */
201 if (!(spurious_irq_mask & irqmask)) { 207 if (!(spurious_irq_mask & irqmask)) {
202 printk(KERN_DEBUG "spurious 8259A interrupt: IRQ%d.\n", irq); 208 printk(KERN_DEBUG
209 "spurious 8259A interrupt: IRQ%d.\n", irq);
203 spurious_irq_mask |= irqmask; 210 spurious_irq_mask |= irqmask;
204 } 211 }
205 atomic_inc(&irq_err_count); 212 atomic_inc(&irq_err_count);
@@ -290,17 +297,28 @@ void init_8259A(int auto_eoi)
290 * outb_pic - this has to work on a wide range of PC hardware. 297 * outb_pic - this has to work on a wide range of PC hardware.
291 */ 298 */
292 outb_pic(0x11, PIC_MASTER_CMD); /* ICW1: select 8259A-1 init */ 299 outb_pic(0x11, PIC_MASTER_CMD); /* ICW1: select 8259A-1 init */
293 outb_pic(0x20 + 0, PIC_MASTER_IMR); /* ICW2: 8259A-1 IR0-7 mapped to 0x20-0x27 */ 300
294 outb_pic(1U << PIC_CASCADE_IR, PIC_MASTER_IMR); /* 8259A-1 (the master) has a slave on IR2 */ 301 /* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 on x86-64,
302 to 0x20-0x27 on i386 */
303 outb_pic(IRQ0_VECTOR, PIC_MASTER_IMR);
304
305 /* 8259A-1 (the master) has a slave on IR2 */
306 outb_pic(1U << PIC_CASCADE_IR, PIC_MASTER_IMR);
307
295 if (auto_eoi) /* master does Auto EOI */ 308 if (auto_eoi) /* master does Auto EOI */
296 outb_pic(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR); 309 outb_pic(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
297 else /* master expects normal EOI */ 310 else /* master expects normal EOI */
298 outb_pic(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR); 311 outb_pic(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
299 312
300 outb_pic(0x11, PIC_SLAVE_CMD); /* ICW1: select 8259A-2 init */ 313 outb_pic(0x11, PIC_SLAVE_CMD); /* ICW1: select 8259A-2 init */
301 outb_pic(0x20 + 8, PIC_SLAVE_IMR); /* ICW2: 8259A-2 IR0-7 mapped to 0x28-0x2f */ 314
302 outb_pic(PIC_CASCADE_IR, PIC_SLAVE_IMR); /* 8259A-2 is a slave on master's IR2 */ 315 /* ICW2: 8259A-2 IR0-7 mapped to IRQ8_VECTOR */
303 outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR); /* (slave's support for AEOI in flat mode is to be investigated) */ 316 outb_pic(IRQ8_VECTOR, PIC_SLAVE_IMR);
317 /* 8259A-2 is a slave on master's IR2 */
318 outb_pic(PIC_CASCADE_IR, PIC_SLAVE_IMR);
319 /* (slave's support for AEOI in flat mode is to be investigated) */
320 outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
321
304 if (auto_eoi) 322 if (auto_eoi)
305 /* 323 /*
306 * In AEOI mode we just have to mask the interrupt 324 * In AEOI mode we just have to mask the interrupt
@@ -317,93 +335,3 @@ void init_8259A(int auto_eoi)
317 335
318 spin_unlock_irqrestore(&i8259A_lock, flags); 336 spin_unlock_irqrestore(&i8259A_lock, flags);
319} 337}
320
321/*
322 * Note that on a 486, we don't want to do a SIGFPE on an irq13
323 * as the irq is unreliable, and exception 16 works correctly
324 * (ie as explained in the intel literature). On a 386, you
325 * can't use exception 16 due to bad IBM design, so we have to
326 * rely on the less exact irq13.
327 *
328 * Careful.. Not only is IRQ13 unreliable, but it is also
329 * leads to races. IBM designers who came up with it should
330 * be shot.
331 */
332
333
334static irqreturn_t math_error_irq(int cpl, void *dev_id)
335{
336 extern void math_error(void __user *);
337 outb(0,0xF0);
338 if (ignore_fpu_irq || !boot_cpu_data.hard_math)
339 return IRQ_NONE;
340 math_error((void __user *)get_irq_regs()->ip);
341 return IRQ_HANDLED;
342}
343
344/*
345 * New motherboards sometimes make IRQ 13 be a PCI interrupt,
346 * so allow interrupt sharing.
347 */
348static struct irqaction fpu_irq = {
349 .handler = math_error_irq,
350 .mask = CPU_MASK_NONE,
351 .name = "fpu",
352};
353
354void __init init_ISA_irqs (void)
355{
356 int i;
357
358#ifdef CONFIG_X86_LOCAL_APIC
359 init_bsp_APIC();
360#endif
361 init_8259A(0);
362
363 /*
364 * 16 old-style INTA-cycle interrupts:
365 */
366 for (i = 0; i < 16; i++) {
367 set_irq_chip_and_handler_name(i, &i8259A_chip,
368 handle_level_irq, "XT");
369 }
370}
371
372/* Overridden in paravirt.c */
373void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
374
375void __init native_init_IRQ(void)
376{
377 int i;
378
379 /* all the set up before the call gates are initialised */
380 pre_intr_init_hook();
381
382 /*
383 * Cover the whole vector space, no vector can escape
384 * us. (some of these will be overridden and become
385 * 'special' SMP interrupts)
386 */
387 for (i = 0; i < (NR_VECTORS - FIRST_EXTERNAL_VECTOR); i++) {
388 int vector = FIRST_EXTERNAL_VECTOR + i;
389 if (i >= NR_IRQS)
390 break;
391 /* SYSCALL_VECTOR was reserved in trap_init. */
392 if (!test_bit(vector, used_vectors))
393 set_intr_gate(vector, interrupt[i]);
394 }
395
396 /* setup after call gates are initialised (usually add in
397 * the architecture specific gates)
398 */
399 intr_init_hook();
400
401 /*
402 * External FPU? Set up irq13 if so, for
403 * original braindamaged IBM FERR coupling.
404 */
405 if (boot_cpu_data.hard_math && !cpu_has_fpu)
406 setup_irq(FPU_IRQ, &fpu_irq);
407
408 irq_ctx_init(smp_processor_id());
409}
diff --git a/arch/x86/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c
deleted file mode 100644
index fa57a1568508..000000000000
--- a/arch/x86/kernel/i8259_64.c
+++ /dev/null
@@ -1,512 +0,0 @@
1#include <linux/linkage.h>
2#include <linux/errno.h>
3#include <linux/signal.h>
4#include <linux/sched.h>
5#include <linux/ioport.h>
6#include <linux/interrupt.h>
7#include <linux/timex.h>
8#include <linux/slab.h>
9#include <linux/random.h>
10#include <linux/init.h>
11#include <linux/kernel_stat.h>
12#include <linux/sysdev.h>
13#include <linux/bitops.h>
14
15#include <asm/acpi.h>
16#include <asm/atomic.h>
17#include <asm/system.h>
18#include <asm/io.h>
19#include <asm/hw_irq.h>
20#include <asm/pgtable.h>
21#include <asm/delay.h>
22#include <asm/desc.h>
23#include <asm/apic.h>
24#include <asm/i8259.h>
25
26/*
27 * Common place to define all x86 IRQ vectors
28 *
29 * This builds up the IRQ handler stubs using some ugly macros in irq.h
30 *
31 * These macros create the low-level assembly IRQ routines that save
32 * register context and call do_IRQ(). do_IRQ() then does all the
33 * operations that are needed to keep the AT (or SMP IOAPIC)
34 * interrupt-controller happy.
35 */
36
37#define BI(x,y) \
38 BUILD_IRQ(x##y)
39
40#define BUILD_16_IRQS(x) \
41 BI(x,0) BI(x,1) BI(x,2) BI(x,3) \
42 BI(x,4) BI(x,5) BI(x,6) BI(x,7) \
43 BI(x,8) BI(x,9) BI(x,a) BI(x,b) \
44 BI(x,c) BI(x,d) BI(x,e) BI(x,f)
45
46/*
47 * ISA PIC or low IO-APIC triggered (INTA-cycle or APIC) interrupts:
48 * (these are usually mapped to vectors 0x30-0x3f)
49 */
50
51/*
52 * The IO-APIC gives us many more interrupt sources. Most of these
53 * are unused but an SMP system is supposed to have enough memory ...
54 * sometimes (mostly wrt. hw bugs) we get corrupted vectors all
55 * across the spectrum, so we really want to be prepared to get all
56 * of these. Plus, more powerful systems might have more than 64
57 * IO-APIC registers.
58 *
59 * (these are usually mapped into the 0x30-0xff vector range)
60 */
61 BUILD_16_IRQS(0x2) BUILD_16_IRQS(0x3)
62BUILD_16_IRQS(0x4) BUILD_16_IRQS(0x5) BUILD_16_IRQS(0x6) BUILD_16_IRQS(0x7)
63BUILD_16_IRQS(0x8) BUILD_16_IRQS(0x9) BUILD_16_IRQS(0xa) BUILD_16_IRQS(0xb)
64BUILD_16_IRQS(0xc) BUILD_16_IRQS(0xd) BUILD_16_IRQS(0xe) BUILD_16_IRQS(0xf)
65
66#undef BUILD_16_IRQS
67#undef BI
68
69
70#define IRQ(x,y) \
71 IRQ##x##y##_interrupt
72
73#define IRQLIST_16(x) \
74 IRQ(x,0), IRQ(x,1), IRQ(x,2), IRQ(x,3), \
75 IRQ(x,4), IRQ(x,5), IRQ(x,6), IRQ(x,7), \
76 IRQ(x,8), IRQ(x,9), IRQ(x,a), IRQ(x,b), \
77 IRQ(x,c), IRQ(x,d), IRQ(x,e), IRQ(x,f)
78
79/* for the irq vectors */
80static void (*__initdata interrupt[NR_VECTORS - FIRST_EXTERNAL_VECTOR])(void) = {
81 IRQLIST_16(0x2), IRQLIST_16(0x3),
82 IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7),
83 IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb),
84 IRQLIST_16(0xc), IRQLIST_16(0xd), IRQLIST_16(0xe), IRQLIST_16(0xf)
85};
86
87#undef IRQ
88#undef IRQLIST_16
89
90/*
91 * This is the 'legacy' 8259A Programmable Interrupt Controller,
92 * present in the majority of PC/AT boxes.
93 * plus some generic x86 specific things if generic specifics makes
94 * any sense at all.
95 * this file should become arch/i386/kernel/irq.c when the old irq.c
96 * moves to arch independent land
97 */
98
99static int i8259A_auto_eoi;
100DEFINE_SPINLOCK(i8259A_lock);
101static void mask_and_ack_8259A(unsigned int);
102
103static struct irq_chip i8259A_chip = {
104 .name = "XT-PIC",
105 .mask = disable_8259A_irq,
106 .disable = disable_8259A_irq,
107 .unmask = enable_8259A_irq,
108 .mask_ack = mask_and_ack_8259A,
109};
110
111/*
112 * 8259A PIC functions to handle ISA devices:
113 */
114
115/*
116 * This contains the irq mask for both 8259A irq controllers,
117 */
118unsigned int cached_irq_mask = 0xffff;
119
120/*
121 * Not all IRQs can be routed through the IO-APIC, eg. on certain (older)
122 * boards the timer interrupt is not really connected to any IO-APIC pin,
123 * it's fed to the master 8259A's IR0 line only.
124 *
125 * Any '1' bit in this mask means the IRQ is routed through the IO-APIC.
126 * this 'mixed mode' IRQ handling costs nothing because it's only used
127 * at IRQ setup time.
128 */
129unsigned long io_apic_irqs;
130
131void disable_8259A_irq(unsigned int irq)
132{
133 unsigned int mask = 1 << irq;
134 unsigned long flags;
135
136 spin_lock_irqsave(&i8259A_lock, flags);
137 cached_irq_mask |= mask;
138 if (irq & 8)
139 outb(cached_slave_mask, PIC_SLAVE_IMR);
140 else
141 outb(cached_master_mask, PIC_MASTER_IMR);
142 spin_unlock_irqrestore(&i8259A_lock, flags);
143}
144
145void enable_8259A_irq(unsigned int irq)
146{
147 unsigned int mask = ~(1 << irq);
148 unsigned long flags;
149
150 spin_lock_irqsave(&i8259A_lock, flags);
151 cached_irq_mask &= mask;
152 if (irq & 8)
153 outb(cached_slave_mask, PIC_SLAVE_IMR);
154 else
155 outb(cached_master_mask, PIC_MASTER_IMR);
156 spin_unlock_irqrestore(&i8259A_lock, flags);
157}
158
159int i8259A_irq_pending(unsigned int irq)
160{
161 unsigned int mask = 1<<irq;
162 unsigned long flags;
163 int ret;
164
165 spin_lock_irqsave(&i8259A_lock, flags);
166 if (irq < 8)
167 ret = inb(PIC_MASTER_CMD) & mask;
168 else
169 ret = inb(PIC_SLAVE_CMD) & (mask >> 8);
170 spin_unlock_irqrestore(&i8259A_lock, flags);
171
172 return ret;
173}
174
175void make_8259A_irq(unsigned int irq)
176{
177 disable_irq_nosync(irq);
178 io_apic_irqs &= ~(1<<irq);
179 set_irq_chip_and_handler_name(irq, &i8259A_chip, handle_level_irq,
180 "XT");
181 enable_irq(irq);
182}
183
184/*
185 * This function assumes to be called rarely. Switching between
186 * 8259A registers is slow.
187 * This has to be protected by the irq controller spinlock
188 * before being called.
189 */
190static inline int i8259A_irq_real(unsigned int irq)
191{
192 int value;
193 int irqmask = 1<<irq;
194
195 if (irq < 8) {
196 outb(0x0B,PIC_MASTER_CMD); /* ISR register */
197 value = inb(PIC_MASTER_CMD) & irqmask;
198 outb(0x0A,PIC_MASTER_CMD); /* back to the IRR register */
199 return value;
200 }
201 outb(0x0B,PIC_SLAVE_CMD); /* ISR register */
202 value = inb(PIC_SLAVE_CMD) & (irqmask >> 8);
203 outb(0x0A,PIC_SLAVE_CMD); /* back to the IRR register */
204 return value;
205}
206
207/*
208 * Careful! The 8259A is a fragile beast, it pretty
209 * much _has_ to be done exactly like this (mask it
210 * first, _then_ send the EOI, and the order of EOI
211 * to the two 8259s is important!
212 */
213static void mask_and_ack_8259A(unsigned int irq)
214{
215 unsigned int irqmask = 1 << irq;
216 unsigned long flags;
217
218 spin_lock_irqsave(&i8259A_lock, flags);
219 /*
220 * Lightweight spurious IRQ detection. We do not want
221 * to overdo spurious IRQ handling - it's usually a sign
222 * of hardware problems, so we only do the checks we can
223 * do without slowing down good hardware unnecessarily.
224 *
225 * Note that IRQ7 and IRQ15 (the two spurious IRQs
226 * usually resulting from the 8259A-1|2 PICs) occur
227 * even if the IRQ is masked in the 8259A. Thus we
228 * can check spurious 8259A IRQs without doing the
229 * quite slow i8259A_irq_real() call for every IRQ.
230 * This does not cover 100% of spurious interrupts,
231 * but should be enough to warn the user that there
232 * is something bad going on ...
233 */
234 if (cached_irq_mask & irqmask)
235 goto spurious_8259A_irq;
236 cached_irq_mask |= irqmask;
237
238handle_real_irq:
239 if (irq & 8) {
240 inb(PIC_SLAVE_IMR); /* DUMMY - (do we need this?) */
241 outb(cached_slave_mask, PIC_SLAVE_IMR);
242 /* 'Specific EOI' to slave */
243 outb(0x60+(irq&7),PIC_SLAVE_CMD);
244 /* 'Specific EOI' to master-IRQ2 */
245 outb(0x60+PIC_CASCADE_IR,PIC_MASTER_CMD);
246 } else {
247 inb(PIC_MASTER_IMR); /* DUMMY - (do we need this?) */
248 outb(cached_master_mask, PIC_MASTER_IMR);
249 /* 'Specific EOI' to master */
250 outb(0x60+irq,PIC_MASTER_CMD);
251 }
252 spin_unlock_irqrestore(&i8259A_lock, flags);
253 return;
254
255spurious_8259A_irq:
256 /*
257 * this is the slow path - should happen rarely.
258 */
259 if (i8259A_irq_real(irq))
260 /*
261 * oops, the IRQ _is_ in service according to the
262 * 8259A - not spurious, go handle it.
263 */
264 goto handle_real_irq;
265
266 {
267 static int spurious_irq_mask;
268 /*
269 * At this point we can be sure the IRQ is spurious,
270 * lets ACK and report it. [once per IRQ]
271 */
272 if (!(spurious_irq_mask & irqmask)) {
273 printk(KERN_DEBUG
274 "spurious 8259A interrupt: IRQ%d.\n", irq);
275 spurious_irq_mask |= irqmask;
276 }
277 atomic_inc(&irq_err_count);
278 /*
279 * Theoretically we do not have to handle this IRQ,
280 * but in Linux this does not cause problems and is
281 * simpler for us.
282 */
283 goto handle_real_irq;
284 }
285}
286
287static char irq_trigger[2];
288/**
289 * ELCR registers (0x4d0, 0x4d1) control edge/level of IRQ
290 */
291static void restore_ELCR(char *trigger)
292{
293 outb(trigger[0], 0x4d0);
294 outb(trigger[1], 0x4d1);
295}
296
297static void save_ELCR(char *trigger)
298{
299 /* IRQ 0,1,2,8,13 are marked as reserved */
300 trigger[0] = inb(0x4d0) & 0xF8;
301 trigger[1] = inb(0x4d1) & 0xDE;
302}
303
304static int i8259A_resume(struct sys_device *dev)
305{
306 init_8259A(i8259A_auto_eoi);
307 restore_ELCR(irq_trigger);
308 return 0;
309}
310
311static int i8259A_suspend(struct sys_device *dev, pm_message_t state)
312{
313 save_ELCR(irq_trigger);
314 return 0;
315}
316
317static int i8259A_shutdown(struct sys_device *dev)
318{
319 /* Put the i8259A into a quiescent state that
320 * the kernel initialization code can get it
321 * out of.
322 */
323 outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */
324 outb(0xff, PIC_SLAVE_IMR); /* mask all of 8259A-1 */
325 return 0;
326}
327
328static struct sysdev_class i8259_sysdev_class = {
329 .name = "i8259",
330 .suspend = i8259A_suspend,
331 .resume = i8259A_resume,
332 .shutdown = i8259A_shutdown,
333};
334
335static struct sys_device device_i8259A = {
336 .id = 0,
337 .cls = &i8259_sysdev_class,
338};
339
340static int __init i8259A_init_sysfs(void)
341{
342 int error = sysdev_class_register(&i8259_sysdev_class);
343 if (!error)
344 error = sysdev_register(&device_i8259A);
345 return error;
346}
347
348device_initcall(i8259A_init_sysfs);
349
350void init_8259A(int auto_eoi)
351{
352 unsigned long flags;
353
354 i8259A_auto_eoi = auto_eoi;
355
356 spin_lock_irqsave(&i8259A_lock, flags);
357
358 outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */
359 outb(0xff, PIC_SLAVE_IMR); /* mask all of 8259A-2 */
360
361 /*
362 * outb_pic - this has to work on a wide range of PC hardware.
363 */
364 outb_pic(0x11, PIC_MASTER_CMD); /* ICW1: select 8259A-1 init */
365 /* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
366 outb_pic(IRQ0_VECTOR, PIC_MASTER_IMR);
367 /* 8259A-1 (the master) has a slave on IR2 */
368 outb_pic(0x04, PIC_MASTER_IMR);
369 if (auto_eoi) /* master does Auto EOI */
370 outb_pic(MASTER_ICW4_DEFAULT | PIC_ICW4_AEOI, PIC_MASTER_IMR);
371 else /* master expects normal EOI */
372 outb_pic(MASTER_ICW4_DEFAULT, PIC_MASTER_IMR);
373
374 outb_pic(0x11, PIC_SLAVE_CMD); /* ICW1: select 8259A-2 init */
375 /* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */
376 outb_pic(IRQ8_VECTOR, PIC_SLAVE_IMR);
377 /* 8259A-2 is a slave on master's IR2 */
378 outb_pic(PIC_CASCADE_IR, PIC_SLAVE_IMR);
379 /* (slave's support for AEOI in flat mode is to be investigated) */
380 outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
381
382 if (auto_eoi)
383 /*
384 * In AEOI mode we just have to mask the interrupt
385 * when acking.
386 */
387 i8259A_chip.mask_ack = disable_8259A_irq;
388 else
389 i8259A_chip.mask_ack = mask_and_ack_8259A;
390
391 udelay(100); /* wait for 8259A to initialize */
392
393 outb(cached_master_mask, PIC_MASTER_IMR); /* restore master IRQ mask */
394 outb(cached_slave_mask, PIC_SLAVE_IMR); /* restore slave IRQ mask */
395
396 spin_unlock_irqrestore(&i8259A_lock, flags);
397}
398
399
400
401
402/*
403 * IRQ2 is cascade interrupt to second interrupt controller
404 */
405
406static struct irqaction irq2 = {
407 .handler = no_action,
408 .mask = CPU_MASK_NONE,
409 .name = "cascade",
410};
411DEFINE_PER_CPU(vector_irq_t, vector_irq) = {
412 [0 ... IRQ0_VECTOR - 1] = -1,
413 [IRQ0_VECTOR] = 0,
414 [IRQ1_VECTOR] = 1,
415 [IRQ2_VECTOR] = 2,
416 [IRQ3_VECTOR] = 3,
417 [IRQ4_VECTOR] = 4,
418 [IRQ5_VECTOR] = 5,
419 [IRQ6_VECTOR] = 6,
420 [IRQ7_VECTOR] = 7,
421 [IRQ8_VECTOR] = 8,
422 [IRQ9_VECTOR] = 9,
423 [IRQ10_VECTOR] = 10,
424 [IRQ11_VECTOR] = 11,
425 [IRQ12_VECTOR] = 12,
426 [IRQ13_VECTOR] = 13,
427 [IRQ14_VECTOR] = 14,
428 [IRQ15_VECTOR] = 15,
429 [IRQ15_VECTOR + 1 ... NR_VECTORS - 1] = -1
430};
431
432void __init init_ISA_irqs (void)
433{
434 int i;
435
436 init_bsp_APIC();
437 init_8259A(0);
438
439 for (i = 0; i < NR_IRQS; i++) {
440 irq_desc[i].status = IRQ_DISABLED;
441 irq_desc[i].action = NULL;
442 irq_desc[i].depth = 1;
443
444 if (i < 16) {
445 /*
446 * 16 old-style INTA-cycle interrupts:
447 */
448 set_irq_chip_and_handler_name(i, &i8259A_chip,
449 handle_level_irq, "XT");
450 } else {
451 /*
452 * 'high' PCI IRQs filled in on demand
453 */
454 irq_desc[i].chip = &no_irq_chip;
455 }
456 }
457}
458
459void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
460
461void __init native_init_IRQ(void)
462{
463 int i;
464
465 init_ISA_irqs();
466 /*
467 * Cover the whole vector space, no vector can escape
468 * us. (some of these will be overridden and become
469 * 'special' SMP interrupts)
470 */
471 for (i = 0; i < (NR_VECTORS - FIRST_EXTERNAL_VECTOR); i++) {
472 int vector = FIRST_EXTERNAL_VECTOR + i;
473 if (vector != IA32_SYSCALL_VECTOR)
474 set_intr_gate(vector, interrupt[i]);
475 }
476
477#ifdef CONFIG_SMP
478 /*
479 * The reschedule interrupt is a CPU-to-CPU reschedule-helper
480 * IPI, driven by wakeup.
481 */
482 set_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt);
483
484 /* IPIs for invalidation */
485 set_intr_gate(INVALIDATE_TLB_VECTOR_START+0, invalidate_interrupt0);
486 set_intr_gate(INVALIDATE_TLB_VECTOR_START+1, invalidate_interrupt1);
487 set_intr_gate(INVALIDATE_TLB_VECTOR_START+2, invalidate_interrupt2);
488 set_intr_gate(INVALIDATE_TLB_VECTOR_START+3, invalidate_interrupt3);
489 set_intr_gate(INVALIDATE_TLB_VECTOR_START+4, invalidate_interrupt4);
490 set_intr_gate(INVALIDATE_TLB_VECTOR_START+5, invalidate_interrupt5);
491 set_intr_gate(INVALIDATE_TLB_VECTOR_START+6, invalidate_interrupt6);
492 set_intr_gate(INVALIDATE_TLB_VECTOR_START+7, invalidate_interrupt7);
493
494 /* IPI for generic function call */
495 set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
496
497 /* Low priority IPI to cleanup after moving an irq */
498 set_intr_gate(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt);
499#endif
500 set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
501 set_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
502
503 /* self generated IPI for local APIC timer */
504 set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
505
506 /* IPI vectors for APIC spurious and error interrupts */
507 set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
508 set_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
509
510 if (!acpi_ioapic)
511 setup_irq(2, &irq2);
512}
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index a40d54fc1fdd..558abf4c796a 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -25,6 +25,7 @@
25#include <linux/init.h> 25#include <linux/init.h>
26#include <linux/delay.h> 26#include <linux/delay.h>
27#include <linux/sched.h> 27#include <linux/sched.h>
28#include <linux/bootmem.h>
28#include <linux/mc146818rtc.h> 29#include <linux/mc146818rtc.h>
29#include <linux/compiler.h> 30#include <linux/compiler.h>
30#include <linux/acpi.h> 31#include <linux/acpi.h>
@@ -58,7 +59,7 @@ static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
58static DEFINE_SPINLOCK(ioapic_lock); 59static DEFINE_SPINLOCK(ioapic_lock);
59static DEFINE_SPINLOCK(vector_lock); 60static DEFINE_SPINLOCK(vector_lock);
60 61
61int timer_over_8254 __initdata = 1; 62int timer_through_8259 __initdata;
62 63
63/* 64/*
64 * Is the SiS APIC rmw bug present ? 65 * Is the SiS APIC rmw bug present ?
@@ -72,15 +73,21 @@ int sis_apic_bug = -1;
72int nr_ioapic_registers[MAX_IO_APICS]; 73int nr_ioapic_registers[MAX_IO_APICS];
73 74
74/* I/O APIC entries */ 75/* I/O APIC entries */
75struct mpc_config_ioapic mp_ioapics[MAX_IO_APICS]; 76struct mp_config_ioapic mp_ioapics[MAX_IO_APICS];
76int nr_ioapics; 77int nr_ioapics;
77 78
78/* MP IRQ source entries */ 79/* MP IRQ source entries */
79struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES]; 80struct mp_config_intsrc mp_irqs[MAX_IRQ_SOURCES];
80 81
81/* # of MP IRQ source entries */ 82/* # of MP IRQ source entries */
82int mp_irq_entries; 83int mp_irq_entries;
83 84
85#if defined (CONFIG_MCA) || defined (CONFIG_EISA)
86int mp_bus_id_to_type[MAX_MP_BUSSES];
87#endif
88
89DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
90
84static int disable_timer_pin_1 __initdata; 91static int disable_timer_pin_1 __initdata;
85 92
86/* 93/*
@@ -110,7 +117,7 @@ struct io_apic {
110static __attribute_const__ struct io_apic __iomem *io_apic_base(int idx) 117static __attribute_const__ struct io_apic __iomem *io_apic_base(int idx)
111{ 118{
112 return (void __iomem *) __fix_to_virt(FIX_IO_APIC_BASE_0 + idx) 119 return (void __iomem *) __fix_to_virt(FIX_IO_APIC_BASE_0 + idx)
113 + (mp_ioapics[idx].mpc_apicaddr & ~PAGE_MASK); 120 + (mp_ioapics[idx].mp_apicaddr & ~PAGE_MASK);
114} 121}
115 122
116static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg) 123static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
@@ -239,7 +246,7 @@ static void __init replace_pin_at_irq(unsigned int irq,
239 } 246 }
240} 247}
241 248
242static void __modify_IO_APIC_irq (unsigned int irq, unsigned long enable, unsigned long disable) 249static void __modify_IO_APIC_irq(unsigned int irq, unsigned long enable, unsigned long disable)
243{ 250{
244 struct irq_pin_list *entry = irq_2_pin + irq; 251 struct irq_pin_list *entry = irq_2_pin + irq;
245 unsigned int pin, reg; 252 unsigned int pin, reg;
@@ -259,30 +266,32 @@ static void __modify_IO_APIC_irq (unsigned int irq, unsigned long enable, unsign
259} 266}
260 267
261/* mask = 1 */ 268/* mask = 1 */
262static void __mask_IO_APIC_irq (unsigned int irq) 269static void __mask_IO_APIC_irq(unsigned int irq)
263{ 270{
264 __modify_IO_APIC_irq(irq, 0x00010000, 0); 271 __modify_IO_APIC_irq(irq, IO_APIC_REDIR_MASKED, 0);
265} 272}
266 273
267/* mask = 0 */ 274/* mask = 0 */
268static void __unmask_IO_APIC_irq (unsigned int irq) 275static void __unmask_IO_APIC_irq(unsigned int irq)
269{ 276{
270 __modify_IO_APIC_irq(irq, 0, 0x00010000); 277 __modify_IO_APIC_irq(irq, 0, IO_APIC_REDIR_MASKED);
271} 278}
272 279
273/* mask = 1, trigger = 0 */ 280/* mask = 1, trigger = 0 */
274static void __mask_and_edge_IO_APIC_irq (unsigned int irq) 281static void __mask_and_edge_IO_APIC_irq(unsigned int irq)
275{ 282{
276 __modify_IO_APIC_irq(irq, 0x00010000, 0x00008000); 283 __modify_IO_APIC_irq(irq, IO_APIC_REDIR_MASKED,
284 IO_APIC_REDIR_LEVEL_TRIGGER);
277} 285}
278 286
279/* mask = 0, trigger = 1 */ 287/* mask = 0, trigger = 1 */
280static void __unmask_and_level_IO_APIC_irq (unsigned int irq) 288static void __unmask_and_level_IO_APIC_irq(unsigned int irq)
281{ 289{
282 __modify_IO_APIC_irq(irq, 0x00008000, 0x00010000); 290 __modify_IO_APIC_irq(irq, IO_APIC_REDIR_LEVEL_TRIGGER,
291 IO_APIC_REDIR_MASKED);
283} 292}
284 293
285static void mask_IO_APIC_irq (unsigned int irq) 294static void mask_IO_APIC_irq(unsigned int irq)
286{ 295{
287 unsigned long flags; 296 unsigned long flags;
288 297
@@ -291,7 +300,7 @@ static void mask_IO_APIC_irq (unsigned int irq)
291 spin_unlock_irqrestore(&ioapic_lock, flags); 300 spin_unlock_irqrestore(&ioapic_lock, flags);
292} 301}
293 302
294static void unmask_IO_APIC_irq (unsigned int irq) 303static void unmask_IO_APIC_irq(unsigned int irq)
295{ 304{
296 unsigned long flags; 305 unsigned long flags;
297 306
@@ -303,7 +312,7 @@ static void unmask_IO_APIC_irq (unsigned int irq)
303static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin) 312static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin)
304{ 313{
305 struct IO_APIC_route_entry entry; 314 struct IO_APIC_route_entry entry;
306 315
307 /* Check delivery_mode to be sure we're not clearing an SMI pin */ 316 /* Check delivery_mode to be sure we're not clearing an SMI pin */
308 entry = ioapic_read_entry(apic, pin); 317 entry = ioapic_read_entry(apic, pin);
309 if (entry.delivery_mode == dest_SMI) 318 if (entry.delivery_mode == dest_SMI)
@@ -315,7 +324,7 @@ static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin)
315 ioapic_mask_entry(apic, pin); 324 ioapic_mask_entry(apic, pin);
316} 325}
317 326
318static void clear_IO_APIC (void) 327static void clear_IO_APIC(void)
319{ 328{
320 int apic, pin; 329 int apic, pin;
321 330
@@ -332,7 +341,7 @@ static void set_ioapic_affinity_irq(unsigned int irq, cpumask_t cpumask)
332 struct irq_pin_list *entry = irq_2_pin + irq; 341 struct irq_pin_list *entry = irq_2_pin + irq;
333 unsigned int apicid_value; 342 unsigned int apicid_value;
334 cpumask_t tmp; 343 cpumask_t tmp;
335 344
336 cpus_and(tmp, cpumask, cpu_online_map); 345 cpus_and(tmp, cpumask, cpu_online_map);
337 if (cpus_empty(tmp)) 346 if (cpus_empty(tmp))
338 tmp = TARGET_CPUS; 347 tmp = TARGET_CPUS;
@@ -361,7 +370,7 @@ static void set_ioapic_affinity_irq(unsigned int irq, cpumask_t cpumask)
361# include <linux/kernel_stat.h> /* kstat */ 370# include <linux/kernel_stat.h> /* kstat */
362# include <linux/slab.h> /* kmalloc() */ 371# include <linux/slab.h> /* kmalloc() */
363# include <linux/timer.h> 372# include <linux/timer.h>
364 373
365#define IRQBALANCE_CHECK_ARCH -999 374#define IRQBALANCE_CHECK_ARCH -999
366#define MAX_BALANCED_IRQ_INTERVAL (5*HZ) 375#define MAX_BALANCED_IRQ_INTERVAL (5*HZ)
367#define MIN_BALANCED_IRQ_INTERVAL (HZ/2) 376#define MIN_BALANCED_IRQ_INTERVAL (HZ/2)
@@ -373,14 +382,14 @@ static int physical_balance __read_mostly;
373static long balanced_irq_interval __read_mostly = MAX_BALANCED_IRQ_INTERVAL; 382static long balanced_irq_interval __read_mostly = MAX_BALANCED_IRQ_INTERVAL;
374 383
375static struct irq_cpu_info { 384static struct irq_cpu_info {
376 unsigned long * last_irq; 385 unsigned long *last_irq;
377 unsigned long * irq_delta; 386 unsigned long *irq_delta;
378 unsigned long irq; 387 unsigned long irq;
379} irq_cpu_data[NR_CPUS]; 388} irq_cpu_data[NR_CPUS];
380 389
381#define CPU_IRQ(cpu) (irq_cpu_data[cpu].irq) 390#define CPU_IRQ(cpu) (irq_cpu_data[cpu].irq)
382#define LAST_CPU_IRQ(cpu,irq) (irq_cpu_data[cpu].last_irq[irq]) 391#define LAST_CPU_IRQ(cpu, irq) (irq_cpu_data[cpu].last_irq[irq])
383#define IRQ_DELTA(cpu,irq) (irq_cpu_data[cpu].irq_delta[irq]) 392#define IRQ_DELTA(cpu, irq) (irq_cpu_data[cpu].irq_delta[irq])
384 393
385#define IDLE_ENOUGH(cpu,now) \ 394#define IDLE_ENOUGH(cpu,now) \
386 (idle_cpu(cpu) && ((now) - per_cpu(irq_stat, (cpu)).idle_timestamp > 1)) 395 (idle_cpu(cpu) && ((now) - per_cpu(irq_stat, (cpu)).idle_timestamp > 1))
@@ -419,8 +428,8 @@ inside:
419 if (cpu == -1) 428 if (cpu == -1)
420 cpu = NR_CPUS-1; 429 cpu = NR_CPUS-1;
421 } 430 }
422 } while (!cpu_online(cpu) || !IRQ_ALLOWED(cpu,allowed_mask) || 431 } while (!cpu_online(cpu) || !IRQ_ALLOWED(cpu, allowed_mask) ||
423 (search_idle && !IDLE_ENOUGH(cpu,now))); 432 (search_idle && !IDLE_ENOUGH(cpu, now)));
424 433
425 return cpu; 434 return cpu;
426} 435}
@@ -430,15 +439,14 @@ static inline void balance_irq(int cpu, int irq)
430 unsigned long now = jiffies; 439 unsigned long now = jiffies;
431 cpumask_t allowed_mask; 440 cpumask_t allowed_mask;
432 unsigned int new_cpu; 441 unsigned int new_cpu;
433 442
434 if (irqbalance_disabled) 443 if (irqbalance_disabled)
435 return; 444 return;
436 445
437 cpus_and(allowed_mask, cpu_online_map, balance_irq_affinity[irq]); 446 cpus_and(allowed_mask, cpu_online_map, balance_irq_affinity[irq]);
438 new_cpu = move(cpu, allowed_mask, now, 1); 447 new_cpu = move(cpu, allowed_mask, now, 1);
439 if (cpu != new_cpu) { 448 if (cpu != new_cpu)
440 set_pending_irq(irq, cpumask_of_cpu(new_cpu)); 449 set_pending_irq(irq, cpumask_of_cpu(new_cpu));
441 }
442} 450}
443 451
444static inline void rotate_irqs_among_cpus(unsigned long useful_load_threshold) 452static inline void rotate_irqs_among_cpus(unsigned long useful_load_threshold)
@@ -450,14 +458,14 @@ static inline void rotate_irqs_among_cpus(unsigned long useful_load_threshold)
450 if (!irq_desc[j].action) 458 if (!irq_desc[j].action)
451 continue; 459 continue;
452 /* Is it a significant load ? */ 460 /* Is it a significant load ? */
453 if (IRQ_DELTA(CPU_TO_PACKAGEINDEX(i),j) < 461 if (IRQ_DELTA(CPU_TO_PACKAGEINDEX(i), j) <
454 useful_load_threshold) 462 useful_load_threshold)
455 continue; 463 continue;
456 balance_irq(i, j); 464 balance_irq(i, j);
457 } 465 }
458 } 466 }
459 balanced_irq_interval = max((long)MIN_BALANCED_IRQ_INTERVAL, 467 balanced_irq_interval = max((long)MIN_BALANCED_IRQ_INTERVAL,
460 balanced_irq_interval - BALANCED_IRQ_LESS_DELTA); 468 balanced_irq_interval - BALANCED_IRQ_LESS_DELTA);
461 return; 469 return;
462} 470}
463 471
@@ -486,22 +494,22 @@ static void do_irq_balance(void)
486 /* Is this an active IRQ or balancing disabled ? */ 494 /* Is this an active IRQ or balancing disabled ? */
487 if (!irq_desc[j].action || irq_balancing_disabled(j)) 495 if (!irq_desc[j].action || irq_balancing_disabled(j))
488 continue; 496 continue;
489 if ( package_index == i ) 497 if (package_index == i)
490 IRQ_DELTA(package_index,j) = 0; 498 IRQ_DELTA(package_index, j) = 0;
491 /* Determine the total count per processor per IRQ */ 499 /* Determine the total count per processor per IRQ */
492 value_now = (unsigned long) kstat_cpu(i).irqs[j]; 500 value_now = (unsigned long) kstat_cpu(i).irqs[j];
493 501
494 /* Determine the activity per processor per IRQ */ 502 /* Determine the activity per processor per IRQ */
495 delta = value_now - LAST_CPU_IRQ(i,j); 503 delta = value_now - LAST_CPU_IRQ(i, j);
496 504
497 /* Update last_cpu_irq[][] for the next time */ 505 /* Update last_cpu_irq[][] for the next time */
498 LAST_CPU_IRQ(i,j) = value_now; 506 LAST_CPU_IRQ(i, j) = value_now;
499 507
500 /* Ignore IRQs whose rate is less than the clock */ 508 /* Ignore IRQs whose rate is less than the clock */
501 if (delta < useful_load_threshold) 509 if (delta < useful_load_threshold)
502 continue; 510 continue;
503 /* update the load for the processor or package total */ 511 /* update the load for the processor or package total */
504 IRQ_DELTA(package_index,j) += delta; 512 IRQ_DELTA(package_index, j) += delta;
505 513
506 /* Keep track of the higher numbered sibling as well */ 514 /* Keep track of the higher numbered sibling as well */
507 if (i != package_index) 515 if (i != package_index)
@@ -527,7 +535,8 @@ static void do_irq_balance(void)
527 max_cpu_irq = ULONG_MAX; 535 max_cpu_irq = ULONG_MAX;
528 536
529tryanothercpu: 537tryanothercpu:
530 /* Look for heaviest loaded processor. 538 /*
539 * Look for heaviest loaded processor.
531 * We may come back to get the next heaviest loaded processor. 540 * We may come back to get the next heaviest loaded processor.
532 * Skip processors with trivial loads. 541 * Skip processors with trivial loads.
533 */ 542 */
@@ -536,7 +545,7 @@ tryanothercpu:
536 for_each_online_cpu(i) { 545 for_each_online_cpu(i) {
537 if (i != CPU_TO_PACKAGEINDEX(i)) 546 if (i != CPU_TO_PACKAGEINDEX(i))
538 continue; 547 continue;
539 if (max_cpu_irq <= CPU_IRQ(i)) 548 if (max_cpu_irq <= CPU_IRQ(i))
540 continue; 549 continue;
541 if (tmp_cpu_irq < CPU_IRQ(i)) { 550 if (tmp_cpu_irq < CPU_IRQ(i)) {
542 tmp_cpu_irq = CPU_IRQ(i); 551 tmp_cpu_irq = CPU_IRQ(i);
@@ -545,8 +554,9 @@ tryanothercpu:
545 } 554 }
546 555
547 if (tmp_loaded == -1) { 556 if (tmp_loaded == -1) {
548 /* In the case of small number of heavy interrupt sources, 557 /*
549 * loading some of the cpus too much. We use Ingo's original 558 * In the case of small number of heavy interrupt sources,
559 * loading some of the cpus too much. We use Ingo's original
550 * approach to rotate them around. 560 * approach to rotate them around.
551 */ 561 */
552 if (!first_attempt && imbalance >= useful_load_threshold) { 562 if (!first_attempt && imbalance >= useful_load_threshold) {
@@ -555,13 +565,14 @@ tryanothercpu:
555 } 565 }
556 goto not_worth_the_effort; 566 goto not_worth_the_effort;
557 } 567 }
558 568
559 first_attempt = 0; /* heaviest search */ 569 first_attempt = 0; /* heaviest search */
560 max_cpu_irq = tmp_cpu_irq; /* load */ 570 max_cpu_irq = tmp_cpu_irq; /* load */
561 max_loaded = tmp_loaded; /* processor */ 571 max_loaded = tmp_loaded; /* processor */
562 imbalance = (max_cpu_irq - min_cpu_irq) / 2; 572 imbalance = (max_cpu_irq - min_cpu_irq) / 2;
563 573
564 /* if imbalance is less than approx 10% of max load, then 574 /*
575 * if imbalance is less than approx 10% of max load, then
565 * observe diminishing returns action. - quit 576 * observe diminishing returns action. - quit
566 */ 577 */
567 if (imbalance < (max_cpu_irq >> 3)) 578 if (imbalance < (max_cpu_irq >> 3))
@@ -577,26 +588,25 @@ tryanotherirq:
577 /* Is this an active IRQ? */ 588 /* Is this an active IRQ? */
578 if (!irq_desc[j].action) 589 if (!irq_desc[j].action)
579 continue; 590 continue;
580 if (imbalance <= IRQ_DELTA(max_loaded,j)) 591 if (imbalance <= IRQ_DELTA(max_loaded, j))
581 continue; 592 continue;
582 /* Try to find the IRQ that is closest to the imbalance 593 /* Try to find the IRQ that is closest to the imbalance
583 * without going over. 594 * without going over.
584 */ 595 */
585 if (move_this_load < IRQ_DELTA(max_loaded,j)) { 596 if (move_this_load < IRQ_DELTA(max_loaded, j)) {
586 move_this_load = IRQ_DELTA(max_loaded,j); 597 move_this_load = IRQ_DELTA(max_loaded, j);
587 selected_irq = j; 598 selected_irq = j;
588 } 599 }
589 } 600 }
590 if (selected_irq == -1) { 601 if (selected_irq == -1)
591 goto tryanothercpu; 602 goto tryanothercpu;
592 }
593 603
594 imbalance = move_this_load; 604 imbalance = move_this_load;
595 605
596 /* For physical_balance case, we accumulated both load 606 /* For physical_balance case, we accumulated both load
597 * values in the one of the siblings cpu_irq[], 607 * values in the one of the siblings cpu_irq[],
598 * to use the same code for physical and logical processors 608 * to use the same code for physical and logical processors
599 * as much as possible. 609 * as much as possible.
600 * 610 *
601 * NOTE: the cpu_irq[] array holds the sum of the load for 611 * NOTE: the cpu_irq[] array holds the sum of the load for
602 * sibling A and sibling B in the slot for the lowest numbered 612 * sibling A and sibling B in the slot for the lowest numbered
@@ -625,11 +635,11 @@ tryanotherirq:
625 /* mark for change destination */ 635 /* mark for change destination */
626 set_pending_irq(selected_irq, cpumask_of_cpu(min_loaded)); 636 set_pending_irq(selected_irq, cpumask_of_cpu(min_loaded));
627 637
628 /* Since we made a change, come back sooner to 638 /* Since we made a change, come back sooner to
629 * check for more variation. 639 * check for more variation.
630 */ 640 */
631 balanced_irq_interval = max((long)MIN_BALANCED_IRQ_INTERVAL, 641 balanced_irq_interval = max((long)MIN_BALANCED_IRQ_INTERVAL,
632 balanced_irq_interval - BALANCED_IRQ_LESS_DELTA); 642 balanced_irq_interval - BALANCED_IRQ_LESS_DELTA);
633 return; 643 return;
634 } 644 }
635 goto tryanotherirq; 645 goto tryanotherirq;
@@ -640,7 +650,7 @@ not_worth_the_effort:
640 * upward 650 * upward
641 */ 651 */
642 balanced_irq_interval = min((long)MAX_BALANCED_IRQ_INTERVAL, 652 balanced_irq_interval = min((long)MAX_BALANCED_IRQ_INTERVAL,
643 balanced_irq_interval + BALANCED_IRQ_MORE_DELTA); 653 balanced_irq_interval + BALANCED_IRQ_MORE_DELTA);
644 return; 654 return;
645} 655}
646 656
@@ -679,13 +689,13 @@ static int __init balanced_irq_init(void)
679 cpumask_t tmp; 689 cpumask_t tmp;
680 690
681 cpus_shift_right(tmp, cpu_online_map, 2); 691 cpus_shift_right(tmp, cpu_online_map, 2);
682 c = &boot_cpu_data; 692 c = &boot_cpu_data;
683 /* When not overwritten by the command line ask subarchitecture. */ 693 /* When not overwritten by the command line ask subarchitecture. */
684 if (irqbalance_disabled == IRQBALANCE_CHECK_ARCH) 694 if (irqbalance_disabled == IRQBALANCE_CHECK_ARCH)
685 irqbalance_disabled = NO_BALANCE_IRQ; 695 irqbalance_disabled = NO_BALANCE_IRQ;
686 if (irqbalance_disabled) 696 if (irqbalance_disabled)
687 return 0; 697 return 0;
688 698
689 /* disable irqbalance completely if there is only one processor online */ 699 /* disable irqbalance completely if there is only one processor online */
690 if (num_online_cpus() < 2) { 700 if (num_online_cpus() < 2) {
691 irqbalance_disabled = 1; 701 irqbalance_disabled = 1;
@@ -699,16 +709,14 @@ static int __init balanced_irq_init(void)
699 physical_balance = 1; 709 physical_balance = 1;
700 710
701 for_each_online_cpu(i) { 711 for_each_online_cpu(i) {
702 irq_cpu_data[i].irq_delta = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL); 712 irq_cpu_data[i].irq_delta = kzalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
703 irq_cpu_data[i].last_irq = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL); 713 irq_cpu_data[i].last_irq = kzalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
704 if (irq_cpu_data[i].irq_delta == NULL || irq_cpu_data[i].last_irq == NULL) { 714 if (irq_cpu_data[i].irq_delta == NULL || irq_cpu_data[i].last_irq == NULL) {
705 printk(KERN_ERR "balanced_irq_init: out of memory"); 715 printk(KERN_ERR "balanced_irq_init: out of memory");
706 goto failed; 716 goto failed;
707 } 717 }
708 memset(irq_cpu_data[i].irq_delta,0,sizeof(unsigned long) * NR_IRQS);
709 memset(irq_cpu_data[i].last_irq,0,sizeof(unsigned long) * NR_IRQS);
710 } 718 }
711 719
712 printk(KERN_INFO "Starting balanced_irq\n"); 720 printk(KERN_INFO "Starting balanced_irq\n");
713 if (!IS_ERR(kthread_run(balanced_irq, NULL, "kirqd"))) 721 if (!IS_ERR(kthread_run(balanced_irq, NULL, "kirqd")))
714 return 0; 722 return 0;
@@ -801,10 +809,10 @@ static int find_irq_entry(int apic, int pin, int type)
801 int i; 809 int i;
802 810
803 for (i = 0; i < mp_irq_entries; i++) 811 for (i = 0; i < mp_irq_entries; i++)
804 if (mp_irqs[i].mpc_irqtype == type && 812 if (mp_irqs[i].mp_irqtype == type &&
805 (mp_irqs[i].mpc_dstapic == mp_ioapics[apic].mpc_apicid || 813 (mp_irqs[i].mp_dstapic == mp_ioapics[apic].mp_apicid ||
806 mp_irqs[i].mpc_dstapic == MP_APIC_ALL) && 814 mp_irqs[i].mp_dstapic == MP_APIC_ALL) &&
807 mp_irqs[i].mpc_dstirq == pin) 815 mp_irqs[i].mp_dstirq == pin)
808 return i; 816 return i;
809 817
810 return -1; 818 return -1;
@@ -818,13 +826,13 @@ static int __init find_isa_irq_pin(int irq, int type)
818 int i; 826 int i;
819 827
820 for (i = 0; i < mp_irq_entries; i++) { 828 for (i = 0; i < mp_irq_entries; i++) {
821 int lbus = mp_irqs[i].mpc_srcbus; 829 int lbus = mp_irqs[i].mp_srcbus;
822 830
823 if (test_bit(lbus, mp_bus_not_pci) && 831 if (test_bit(lbus, mp_bus_not_pci) &&
824 (mp_irqs[i].mpc_irqtype == type) && 832 (mp_irqs[i].mp_irqtype == type) &&
825 (mp_irqs[i].mpc_srcbusirq == irq)) 833 (mp_irqs[i].mp_srcbusirq == irq))
826 834
827 return mp_irqs[i].mpc_dstirq; 835 return mp_irqs[i].mp_dstirq;
828 } 836 }
829 return -1; 837 return -1;
830} 838}
@@ -834,17 +842,17 @@ static int __init find_isa_irq_apic(int irq, int type)
834 int i; 842 int i;
835 843
836 for (i = 0; i < mp_irq_entries; i++) { 844 for (i = 0; i < mp_irq_entries; i++) {
837 int lbus = mp_irqs[i].mpc_srcbus; 845 int lbus = mp_irqs[i].mp_srcbus;
838 846
839 if (test_bit(lbus, mp_bus_not_pci) && 847 if (test_bit(lbus, mp_bus_not_pci) &&
840 (mp_irqs[i].mpc_irqtype == type) && 848 (mp_irqs[i].mp_irqtype == type) &&
841 (mp_irqs[i].mpc_srcbusirq == irq)) 849 (mp_irqs[i].mp_srcbusirq == irq))
842 break; 850 break;
843 } 851 }
844 if (i < mp_irq_entries) { 852 if (i < mp_irq_entries) {
845 int apic; 853 int apic;
846 for(apic = 0; apic < nr_ioapics; apic++) { 854 for (apic = 0; apic < nr_ioapics; apic++) {
847 if (mp_ioapics[apic].mpc_apicid == mp_irqs[i].mpc_dstapic) 855 if (mp_ioapics[apic].mp_apicid == mp_irqs[i].mp_dstapic)
848 return apic; 856 return apic;
849 } 857 }
850 } 858 }
@@ -864,28 +872,28 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
864 872
865 apic_printk(APIC_DEBUG, "querying PCI -> IRQ mapping bus:%d, " 873 apic_printk(APIC_DEBUG, "querying PCI -> IRQ mapping bus:%d, "
866 "slot:%d, pin:%d.\n", bus, slot, pin); 874 "slot:%d, pin:%d.\n", bus, slot, pin);
867 if (mp_bus_id_to_pci_bus[bus] == -1) { 875 if (test_bit(bus, mp_bus_not_pci)) {
868 printk(KERN_WARNING "PCI BIOS passed nonexistent PCI bus %d!\n", bus); 876 printk(KERN_WARNING "PCI BIOS passed nonexistent PCI bus %d!\n", bus);
869 return -1; 877 return -1;
870 } 878 }
871 for (i = 0; i < mp_irq_entries; i++) { 879 for (i = 0; i < mp_irq_entries; i++) {
872 int lbus = mp_irqs[i].mpc_srcbus; 880 int lbus = mp_irqs[i].mp_srcbus;
873 881
874 for (apic = 0; apic < nr_ioapics; apic++) 882 for (apic = 0; apic < nr_ioapics; apic++)
875 if (mp_ioapics[apic].mpc_apicid == mp_irqs[i].mpc_dstapic || 883 if (mp_ioapics[apic].mp_apicid == mp_irqs[i].mp_dstapic ||
876 mp_irqs[i].mpc_dstapic == MP_APIC_ALL) 884 mp_irqs[i].mp_dstapic == MP_APIC_ALL)
877 break; 885 break;
878 886
879 if (!test_bit(lbus, mp_bus_not_pci) && 887 if (!test_bit(lbus, mp_bus_not_pci) &&
880 !mp_irqs[i].mpc_irqtype && 888 !mp_irqs[i].mp_irqtype &&
881 (bus == lbus) && 889 (bus == lbus) &&
882 (slot == ((mp_irqs[i].mpc_srcbusirq >> 2) & 0x1f))) { 890 (slot == ((mp_irqs[i].mp_srcbusirq >> 2) & 0x1f))) {
883 int irq = pin_2_irq(i,apic,mp_irqs[i].mpc_dstirq); 891 int irq = pin_2_irq(i, apic, mp_irqs[i].mp_dstirq);
884 892
885 if (!(apic || IO_APIC_IRQ(irq))) 893 if (!(apic || IO_APIC_IRQ(irq)))
886 continue; 894 continue;
887 895
888 if (pin == (mp_irqs[i].mpc_srcbusirq & 3)) 896 if (pin == (mp_irqs[i].mp_srcbusirq & 3))
889 return irq; 897 return irq;
890 /* 898 /*
891 * Use the first all-but-pin matching entry as a 899 * Use the first all-but-pin matching entry as a
@@ -900,7 +908,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
900EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector); 908EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
901 909
902/* 910/*
903 * This function currently is only a helper for the i386 smp boot process where 911 * This function currently is only a helper for the i386 smp boot process where
904 * we need to reprogram the ioredtbls to cater for the cpus which have come online 912 * we need to reprogram the ioredtbls to cater for the cpus which have come online
905 * so mask in all cases should simply be TARGET_CPUS 913 * so mask in all cases should simply be TARGET_CPUS
906 */ 914 */
@@ -952,7 +960,7 @@ static int EISA_ELCR(unsigned int irq)
952 * EISA conforming in the MP table, that means its trigger type must 960 * EISA conforming in the MP table, that means its trigger type must
953 * be read in from the ELCR */ 961 * be read in from the ELCR */
954 962
955#define default_EISA_trigger(idx) (EISA_ELCR(mp_irqs[idx].mpc_srcbusirq)) 963#define default_EISA_trigger(idx) (EISA_ELCR(mp_irqs[idx].mp_srcbusirq))
956#define default_EISA_polarity(idx) default_ISA_polarity(idx) 964#define default_EISA_polarity(idx) default_ISA_polarity(idx)
957 965
958/* PCI interrupts are always polarity one level triggered, 966/* PCI interrupts are always polarity one level triggered,
@@ -969,118 +977,115 @@ static int EISA_ELCR(unsigned int irq)
969 977
970static int MPBIOS_polarity(int idx) 978static int MPBIOS_polarity(int idx)
971{ 979{
972 int bus = mp_irqs[idx].mpc_srcbus; 980 int bus = mp_irqs[idx].mp_srcbus;
973 int polarity; 981 int polarity;
974 982
975 /* 983 /*
976 * Determine IRQ line polarity (high active or low active): 984 * Determine IRQ line polarity (high active or low active):
977 */ 985 */
978 switch (mp_irqs[idx].mpc_irqflag & 3) 986 switch (mp_irqs[idx].mp_irqflag & 3) {
987 case 0: /* conforms, ie. bus-type dependent polarity */
979 { 988 {
980 case 0: /* conforms, ie. bus-type dependent polarity */ 989 polarity = test_bit(bus, mp_bus_not_pci)?
981 { 990 default_ISA_polarity(idx):
982 polarity = test_bit(bus, mp_bus_not_pci)? 991 default_PCI_polarity(idx);
983 default_ISA_polarity(idx): 992 break;
984 default_PCI_polarity(idx); 993 }
985 break; 994 case 1: /* high active */
986 } 995 {
987 case 1: /* high active */ 996 polarity = 0;
988 { 997 break;
989 polarity = 0; 998 }
990 break; 999 case 2: /* reserved */
991 } 1000 {
992 case 2: /* reserved */ 1001 printk(KERN_WARNING "broken BIOS!!\n");
993 { 1002 polarity = 1;
994 printk(KERN_WARNING "broken BIOS!!\n"); 1003 break;
995 polarity = 1; 1004 }
996 break; 1005 case 3: /* low active */
997 } 1006 {
998 case 3: /* low active */ 1007 polarity = 1;
999 { 1008 break;
1000 polarity = 1; 1009 }
1001 break; 1010 default: /* invalid */
1002 } 1011 {
1003 default: /* invalid */ 1012 printk(KERN_WARNING "broken BIOS!!\n");
1004 { 1013 polarity = 1;
1005 printk(KERN_WARNING "broken BIOS!!\n"); 1014 break;
1006 polarity = 1; 1015 }
1007 break;
1008 }
1009 } 1016 }
1010 return polarity; 1017 return polarity;
1011} 1018}
1012 1019
1013static int MPBIOS_trigger(int idx) 1020static int MPBIOS_trigger(int idx)
1014{ 1021{
1015 int bus = mp_irqs[idx].mpc_srcbus; 1022 int bus = mp_irqs[idx].mp_srcbus;
1016 int trigger; 1023 int trigger;
1017 1024
1018 /* 1025 /*
1019 * Determine IRQ trigger mode (edge or level sensitive): 1026 * Determine IRQ trigger mode (edge or level sensitive):
1020 */ 1027 */
1021 switch ((mp_irqs[idx].mpc_irqflag>>2) & 3) 1028 switch ((mp_irqs[idx].mp_irqflag>>2) & 3) {
1029 case 0: /* conforms, ie. bus-type dependent */
1022 { 1030 {
1023 case 0: /* conforms, ie. bus-type dependent */ 1031 trigger = test_bit(bus, mp_bus_not_pci)?
1024 { 1032 default_ISA_trigger(idx):
1025 trigger = test_bit(bus, mp_bus_not_pci)? 1033 default_PCI_trigger(idx);
1026 default_ISA_trigger(idx):
1027 default_PCI_trigger(idx);
1028#if defined(CONFIG_EISA) || defined(CONFIG_MCA) 1034#if defined(CONFIG_EISA) || defined(CONFIG_MCA)
1029 switch (mp_bus_id_to_type[bus]) 1035 switch (mp_bus_id_to_type[bus]) {
1030 { 1036 case MP_BUS_ISA: /* ISA pin */
1031 case MP_BUS_ISA: /* ISA pin */ 1037 {
1032 { 1038 /* set before the switch */
1033 /* set before the switch */
1034 break;
1035 }
1036 case MP_BUS_EISA: /* EISA pin */
1037 {
1038 trigger = default_EISA_trigger(idx);
1039 break;
1040 }
1041 case MP_BUS_PCI: /* PCI pin */
1042 {
1043 /* set before the switch */
1044 break;
1045 }
1046 case MP_BUS_MCA: /* MCA pin */
1047 {
1048 trigger = default_MCA_trigger(idx);
1049 break;
1050 }
1051 default:
1052 {
1053 printk(KERN_WARNING "broken BIOS!!\n");
1054 trigger = 1;
1055 break;
1056 }
1057 }
1058#endif
1059 break; 1039 break;
1060 } 1040 }
1061 case 1: /* edge */ 1041 case MP_BUS_EISA: /* EISA pin */
1062 { 1042 {
1063 trigger = 0; 1043 trigger = default_EISA_trigger(idx);
1064 break; 1044 break;
1065 } 1045 }
1066 case 2: /* reserved */ 1046 case MP_BUS_PCI: /* PCI pin */
1067 { 1047 {
1068 printk(KERN_WARNING "broken BIOS!!\n"); 1048 /* set before the switch */
1069 trigger = 1;
1070 break; 1049 break;
1071 } 1050 }
1072 case 3: /* level */ 1051 case MP_BUS_MCA: /* MCA pin */
1073 { 1052 {
1074 trigger = 1; 1053 trigger = default_MCA_trigger(idx);
1075 break; 1054 break;
1076 } 1055 }
1077 default: /* invalid */ 1056 default:
1078 { 1057 {
1079 printk(KERN_WARNING "broken BIOS!!\n"); 1058 printk(KERN_WARNING "broken BIOS!!\n");
1080 trigger = 0; 1059 trigger = 1;
1081 break; 1060 break;
1082 } 1061 }
1083 } 1062 }
1063#endif
1064 break;
1065 }
1066 case 1: /* edge */
1067 {
1068 trigger = 0;
1069 break;
1070 }
1071 case 2: /* reserved */
1072 {
1073 printk(KERN_WARNING "broken BIOS!!\n");
1074 trigger = 1;
1075 break;
1076 }
1077 case 3: /* level */
1078 {
1079 trigger = 1;
1080 break;
1081 }
1082 default: /* invalid */
1083 {
1084 printk(KERN_WARNING "broken BIOS!!\n");
1085 trigger = 0;
1086 break;
1087 }
1088 }
1084 return trigger; 1089 return trigger;
1085} 1090}
1086 1091
@@ -1097,16 +1102,16 @@ static inline int irq_trigger(int idx)
1097static int pin_2_irq(int idx, int apic, int pin) 1102static int pin_2_irq(int idx, int apic, int pin)
1098{ 1103{
1099 int irq, i; 1104 int irq, i;
1100 int bus = mp_irqs[idx].mpc_srcbus; 1105 int bus = mp_irqs[idx].mp_srcbus;
1101 1106
1102 /* 1107 /*
1103 * Debugging check, we are in big trouble if this message pops up! 1108 * Debugging check, we are in big trouble if this message pops up!
1104 */ 1109 */
1105 if (mp_irqs[idx].mpc_dstirq != pin) 1110 if (mp_irqs[idx].mp_dstirq != pin)
1106 printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n"); 1111 printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n");
1107 1112
1108 if (test_bit(bus, mp_bus_not_pci)) 1113 if (test_bit(bus, mp_bus_not_pci))
1109 irq = mp_irqs[idx].mpc_srcbusirq; 1114 irq = mp_irqs[idx].mp_srcbusirq;
1110 else { 1115 else {
1111 /* 1116 /*
1112 * PCI IRQs are mapped in order 1117 * PCI IRQs are mapped in order
@@ -1148,8 +1153,8 @@ static inline int IO_APIC_irq_trigger(int irq)
1148 1153
1149 for (apic = 0; apic < nr_ioapics; apic++) { 1154 for (apic = 0; apic < nr_ioapics; apic++) {
1150 for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) { 1155 for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) {
1151 idx = find_irq_entry(apic,pin,mp_INT); 1156 idx = find_irq_entry(apic, pin, mp_INT);
1152 if ((idx != -1) && (irq == pin_2_irq(idx,apic,pin))) 1157 if ((idx != -1) && (irq == pin_2_irq(idx, apic, pin)))
1153 return irq_trigger(idx); 1158 return irq_trigger(idx);
1154 } 1159 }
1155 } 1160 }
@@ -1164,7 +1169,7 @@ static u8 irq_vector[NR_IRQ_VECTORS] __read_mostly = { FIRST_DEVICE_VECTOR , 0 }
1164 1169
1165static int __assign_irq_vector(int irq) 1170static int __assign_irq_vector(int irq)
1166{ 1171{
1167 static int current_vector = FIRST_DEVICE_VECTOR, current_offset = 0; 1172 static int current_vector = FIRST_DEVICE_VECTOR, current_offset;
1168 int vector, offset; 1173 int vector, offset;
1169 1174
1170 BUG_ON((unsigned)irq >= NR_IRQ_VECTORS); 1175 BUG_ON((unsigned)irq >= NR_IRQ_VECTORS);
@@ -1176,7 +1181,7 @@ static int __assign_irq_vector(int irq)
1176 offset = current_offset; 1181 offset = current_offset;
1177next: 1182next:
1178 vector += 8; 1183 vector += 8;
1179 if (vector >= FIRST_SYSTEM_VECTOR) { 1184 if (vector >= first_system_vector) {
1180 offset = (offset + 1) % 8; 1185 offset = (offset + 1) % 8;
1181 vector = FIRST_DEVICE_VECTOR + offset; 1186 vector = FIRST_DEVICE_VECTOR + offset;
1182 } 1187 }
@@ -1203,6 +1208,11 @@ static int assign_irq_vector(int irq)
1203 1208
1204 return vector; 1209 return vector;
1205} 1210}
1211
1212void setup_vector_irq(int cpu)
1213{
1214}
1215
1206static struct irq_chip ioapic_chip; 1216static struct irq_chip ioapic_chip;
1207 1217
1208#define IOAPIC_AUTO -1 1218#define IOAPIC_AUTO -1
@@ -1237,25 +1247,25 @@ static void __init setup_IO_APIC_irqs(void)
1237 /* 1247 /*
1238 * add it to the IO-APIC irq-routing table: 1248 * add it to the IO-APIC irq-routing table:
1239 */ 1249 */
1240 memset(&entry,0,sizeof(entry)); 1250 memset(&entry, 0, sizeof(entry));
1241 1251
1242 entry.delivery_mode = INT_DELIVERY_MODE; 1252 entry.delivery_mode = INT_DELIVERY_MODE;
1243 entry.dest_mode = INT_DEST_MODE; 1253 entry.dest_mode = INT_DEST_MODE;
1244 entry.mask = 0; /* enable IRQ */ 1254 entry.mask = 0; /* enable IRQ */
1245 entry.dest.logical.logical_dest = 1255 entry.dest.logical.logical_dest =
1246 cpu_mask_to_apicid(TARGET_CPUS); 1256 cpu_mask_to_apicid(TARGET_CPUS);
1247 1257
1248 idx = find_irq_entry(apic,pin,mp_INT); 1258 idx = find_irq_entry(apic, pin, mp_INT);
1249 if (idx == -1) { 1259 if (idx == -1) {
1250 if (first_notcon) { 1260 if (first_notcon) {
1251 apic_printk(APIC_VERBOSE, KERN_DEBUG 1261 apic_printk(APIC_VERBOSE, KERN_DEBUG
1252 " IO-APIC (apicid-pin) %d-%d", 1262 " IO-APIC (apicid-pin) %d-%d",
1253 mp_ioapics[apic].mpc_apicid, 1263 mp_ioapics[apic].mp_apicid,
1254 pin); 1264 pin);
1255 first_notcon = 0; 1265 first_notcon = 0;
1256 } else 1266 } else
1257 apic_printk(APIC_VERBOSE, ", %d-%d", 1267 apic_printk(APIC_VERBOSE, ", %d-%d",
1258 mp_ioapics[apic].mpc_apicid, pin); 1268 mp_ioapics[apic].mp_apicid, pin);
1259 continue; 1269 continue;
1260 } 1270 }
1261 1271
@@ -1289,7 +1299,7 @@ static void __init setup_IO_APIC_irqs(void)
1289 vector = assign_irq_vector(irq); 1299 vector = assign_irq_vector(irq);
1290 entry.vector = vector; 1300 entry.vector = vector;
1291 ioapic_register_intr(irq, vector, IOAPIC_AUTO); 1301 ioapic_register_intr(irq, vector, IOAPIC_AUTO);
1292 1302
1293 if (!apic && (irq < 16)) 1303 if (!apic && (irq < 16))
1294 disable_8259A_irq(irq); 1304 disable_8259A_irq(irq);
1295 } 1305 }
@@ -1302,25 +1312,21 @@ static void __init setup_IO_APIC_irqs(void)
1302} 1312}
1303 1313
1304/* 1314/*
1305 * Set up the 8259A-master output pin: 1315 * Set up the timer pin, possibly with the 8259A-master behind.
1306 */ 1316 */
1307static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, int vector) 1317static void __init setup_timer_IRQ0_pin(unsigned int apic, unsigned int pin,
1318 int vector)
1308{ 1319{
1309 struct IO_APIC_route_entry entry; 1320 struct IO_APIC_route_entry entry;
1310 1321
1311 memset(&entry,0,sizeof(entry)); 1322 memset(&entry, 0, sizeof(entry));
1312
1313 disable_8259A_irq(0);
1314
1315 /* mask LVT0 */
1316 apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
1317 1323
1318 /* 1324 /*
1319 * We use logical delivery to get the timer IRQ 1325 * We use logical delivery to get the timer IRQ
1320 * to the first CPU. 1326 * to the first CPU.
1321 */ 1327 */
1322 entry.dest_mode = INT_DEST_MODE; 1328 entry.dest_mode = INT_DEST_MODE;
1323 entry.mask = 0; /* unmask IRQ now */ 1329 entry.mask = 1; /* mask IRQ now */
1324 entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS); 1330 entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
1325 entry.delivery_mode = INT_DELIVERY_MODE; 1331 entry.delivery_mode = INT_DELIVERY_MODE;
1326 entry.polarity = 0; 1332 entry.polarity = 0;
@@ -1329,17 +1335,14 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
1329 1335
1330 /* 1336 /*
1331 * The timer IRQ doesn't have to know that behind the 1337 * The timer IRQ doesn't have to know that behind the
1332 * scene we have a 8259A-master in AEOI mode ... 1338 * scene we may have a 8259A-master in AEOI mode ...
1333 */ 1339 */
1334 irq_desc[0].chip = &ioapic_chip; 1340 ioapic_register_intr(0, vector, IOAPIC_EDGE);
1335 set_irq_handler(0, handle_edge_irq);
1336 1341
1337 /* 1342 /*
1338 * Add it to the IO-APIC irq-routing table: 1343 * Add it to the IO-APIC irq-routing table:
1339 */ 1344 */
1340 ioapic_write_entry(apic, pin, entry); 1345 ioapic_write_entry(apic, pin, entry);
1341
1342 enable_8259A_irq(0);
1343} 1346}
1344 1347
1345void __init print_IO_APIC(void) 1348void __init print_IO_APIC(void)
@@ -1354,10 +1357,10 @@ void __init print_IO_APIC(void)
1354 if (apic_verbosity == APIC_QUIET) 1357 if (apic_verbosity == APIC_QUIET)
1355 return; 1358 return;
1356 1359
1357 printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries); 1360 printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries);
1358 for (i = 0; i < nr_ioapics; i++) 1361 for (i = 0; i < nr_ioapics; i++)
1359 printk(KERN_DEBUG "number of IO-APIC #%d registers: %d.\n", 1362 printk(KERN_DEBUG "number of IO-APIC #%d registers: %d.\n",
1360 mp_ioapics[i].mpc_apicid, nr_ioapic_registers[i]); 1363 mp_ioapics[i].mp_apicid, nr_ioapic_registers[i]);
1361 1364
1362 /* 1365 /*
1363 * We are a bit conservative about what we expect. We have to 1366 * We are a bit conservative about what we expect. We have to
@@ -1376,7 +1379,7 @@ void __init print_IO_APIC(void)
1376 reg_03.raw = io_apic_read(apic, 3); 1379 reg_03.raw = io_apic_read(apic, 3);
1377 spin_unlock_irqrestore(&ioapic_lock, flags); 1380 spin_unlock_irqrestore(&ioapic_lock, flags);
1378 1381
1379 printk(KERN_DEBUG "IO APIC #%d......\n", mp_ioapics[apic].mpc_apicid); 1382 printk(KERN_DEBUG "IO APIC #%d......\n", mp_ioapics[apic].mp_apicid);
1380 printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw); 1383 printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw);
1381 printk(KERN_DEBUG "....... : physical APIC id: %02X\n", reg_00.bits.ID); 1384 printk(KERN_DEBUG "....... : physical APIC id: %02X\n", reg_00.bits.ID);
1382 printk(KERN_DEBUG "....... : Delivery Type: %X\n", reg_00.bits.delivery_type); 1385 printk(KERN_DEBUG "....... : Delivery Type: %X\n", reg_00.bits.delivery_type);
@@ -1459,7 +1462,7 @@ void __init print_IO_APIC(void)
1459 1462
1460#if 0 1463#if 0
1461 1464
1462static void print_APIC_bitfield (int base) 1465static void print_APIC_bitfield(int base)
1463{ 1466{
1464 unsigned int v; 1467 unsigned int v;
1465 int i, j; 1468 int i, j;
@@ -1480,7 +1483,7 @@ static void print_APIC_bitfield (int base)
1480 } 1483 }
1481} 1484}
1482 1485
1483void /*__init*/ print_local_APIC(void * dummy) 1486void /*__init*/ print_local_APIC(void *dummy)
1484{ 1487{
1485 unsigned int v, ver, maxlvt; 1488 unsigned int v, ver, maxlvt;
1486 1489
@@ -1489,6 +1492,7 @@ void /*__init*/ print_local_APIC(void * dummy)
1489 1492
1490 printk("\n" KERN_DEBUG "printing local APIC contents on CPU#%d/%d:\n", 1493 printk("\n" KERN_DEBUG "printing local APIC contents on CPU#%d/%d:\n",
1491 smp_processor_id(), hard_smp_processor_id()); 1494 smp_processor_id(), hard_smp_processor_id());
1495 v = apic_read(APIC_ID);
1492 printk(KERN_INFO "... APIC ID: %08x (%01x)\n", v, 1496 printk(KERN_INFO "... APIC ID: %08x (%01x)\n", v,
1493 GET_APIC_ID(read_apic_id())); 1497 GET_APIC_ID(read_apic_id()));
1494 v = apic_read(APIC_LVR); 1498 v = apic_read(APIC_LVR);
@@ -1563,9 +1567,9 @@ void /*__init*/ print_local_APIC(void * dummy)
1563 printk("\n"); 1567 printk("\n");
1564} 1568}
1565 1569
1566void print_all_local_APICs (void) 1570void print_all_local_APICs(void)
1567{ 1571{
1568 on_each_cpu(print_local_APIC, NULL, 1, 1); 1572 on_each_cpu(print_local_APIC, NULL, 1);
1569} 1573}
1570 1574
1571void /*__init*/ print_PIC(void) 1575void /*__init*/ print_PIC(void)
@@ -1586,11 +1590,11 @@ void /*__init*/ print_PIC(void)
1586 v = inb(0xa0) << 8 | inb(0x20); 1590 v = inb(0xa0) << 8 | inb(0x20);
1587 printk(KERN_DEBUG "... PIC IRR: %04x\n", v); 1591 printk(KERN_DEBUG "... PIC IRR: %04x\n", v);
1588 1592
1589 outb(0x0b,0xa0); 1593 outb(0x0b, 0xa0);
1590 outb(0x0b,0x20); 1594 outb(0x0b, 0x20);
1591 v = inb(0xa0) << 8 | inb(0x20); 1595 v = inb(0xa0) << 8 | inb(0x20);
1592 outb(0x0a,0xa0); 1596 outb(0x0a, 0xa0);
1593 outb(0x0a,0x20); 1597 outb(0x0a, 0x20);
1594 1598
1595 spin_unlock_irqrestore(&i8259A_lock, flags); 1599 spin_unlock_irqrestore(&i8259A_lock, flags);
1596 1600
@@ -1626,7 +1630,7 @@ static void __init enable_IO_APIC(void)
1626 spin_unlock_irqrestore(&ioapic_lock, flags); 1630 spin_unlock_irqrestore(&ioapic_lock, flags);
1627 nr_ioapic_registers[apic] = reg_01.bits.entries+1; 1631 nr_ioapic_registers[apic] = reg_01.bits.entries+1;
1628 } 1632 }
1629 for(apic = 0; apic < nr_ioapics; apic++) { 1633 for (apic = 0; apic < nr_ioapics; apic++) {
1630 int pin; 1634 int pin;
1631 /* See if any of the pins is in ExtINT mode */ 1635 /* See if any of the pins is in ExtINT mode */
1632 for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) { 1636 for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) {
@@ -1716,7 +1720,6 @@ void disable_IO_APIC(void)
1716 * by Matt Domsch <Matt_Domsch@dell.com> Tue Dec 21 12:25:05 CST 1999 1720 * by Matt Domsch <Matt_Domsch@dell.com> Tue Dec 21 12:25:05 CST 1999
1717 */ 1721 */
1718 1722
1719#ifndef CONFIG_X86_NUMAQ
1720static void __init setup_ioapic_ids_from_mpc(void) 1723static void __init setup_ioapic_ids_from_mpc(void)
1721{ 1724{
1722 union IO_APIC_reg_00 reg_00; 1725 union IO_APIC_reg_00 reg_00;
@@ -1726,6 +1729,11 @@ static void __init setup_ioapic_ids_from_mpc(void)
1726 unsigned char old_id; 1729 unsigned char old_id;
1727 unsigned long flags; 1730 unsigned long flags;
1728 1731
1732#ifdef CONFIG_X86_NUMAQ
1733 if (found_numaq)
1734 return;
1735#endif
1736
1729 /* 1737 /*
1730 * Don't check I/O APIC IDs for xAPIC systems. They have 1738 * Don't check I/O APIC IDs for xAPIC systems. They have
1731 * no meaning without the serial APIC bus. 1739 * no meaning without the serial APIC bus.
@@ -1748,15 +1756,15 @@ static void __init setup_ioapic_ids_from_mpc(void)
1748 spin_lock_irqsave(&ioapic_lock, flags); 1756 spin_lock_irqsave(&ioapic_lock, flags);
1749 reg_00.raw = io_apic_read(apic, 0); 1757 reg_00.raw = io_apic_read(apic, 0);
1750 spin_unlock_irqrestore(&ioapic_lock, flags); 1758 spin_unlock_irqrestore(&ioapic_lock, flags);
1751
1752 old_id = mp_ioapics[apic].mpc_apicid;
1753 1759
1754 if (mp_ioapics[apic].mpc_apicid >= get_physical_broadcast()) { 1760 old_id = mp_ioapics[apic].mp_apicid;
1761
1762 if (mp_ioapics[apic].mp_apicid >= get_physical_broadcast()) {
1755 printk(KERN_ERR "BIOS bug, IO-APIC#%d ID is %d in the MPC table!...\n", 1763 printk(KERN_ERR "BIOS bug, IO-APIC#%d ID is %d in the MPC table!...\n",
1756 apic, mp_ioapics[apic].mpc_apicid); 1764 apic, mp_ioapics[apic].mp_apicid);
1757 printk(KERN_ERR "... fixing up to %d. (tell your hw vendor)\n", 1765 printk(KERN_ERR "... fixing up to %d. (tell your hw vendor)\n",
1758 reg_00.bits.ID); 1766 reg_00.bits.ID);
1759 mp_ioapics[apic].mpc_apicid = reg_00.bits.ID; 1767 mp_ioapics[apic].mp_apicid = reg_00.bits.ID;
1760 } 1768 }
1761 1769
1762 /* 1770 /*
@@ -1765,9 +1773,9 @@ static void __init setup_ioapic_ids_from_mpc(void)
1765 * 'stuck on smp_invalidate_needed IPI wait' messages. 1773 * 'stuck on smp_invalidate_needed IPI wait' messages.
1766 */ 1774 */
1767 if (check_apicid_used(phys_id_present_map, 1775 if (check_apicid_used(phys_id_present_map,
1768 mp_ioapics[apic].mpc_apicid)) { 1776 mp_ioapics[apic].mp_apicid)) {
1769 printk(KERN_ERR "BIOS bug, IO-APIC#%d ID %d is already used!...\n", 1777 printk(KERN_ERR "BIOS bug, IO-APIC#%d ID %d is already used!...\n",
1770 apic, mp_ioapics[apic].mpc_apicid); 1778 apic, mp_ioapics[apic].mp_apicid);
1771 for (i = 0; i < get_physical_broadcast(); i++) 1779 for (i = 0; i < get_physical_broadcast(); i++)
1772 if (!physid_isset(i, phys_id_present_map)) 1780 if (!physid_isset(i, phys_id_present_map))
1773 break; 1781 break;
@@ -1776,13 +1784,13 @@ static void __init setup_ioapic_ids_from_mpc(void)
1776 printk(KERN_ERR "... fixing up to %d. (tell your hw vendor)\n", 1784 printk(KERN_ERR "... fixing up to %d. (tell your hw vendor)\n",
1777 i); 1785 i);
1778 physid_set(i, phys_id_present_map); 1786 physid_set(i, phys_id_present_map);
1779 mp_ioapics[apic].mpc_apicid = i; 1787 mp_ioapics[apic].mp_apicid = i;
1780 } else { 1788 } else {
1781 physid_mask_t tmp; 1789 physid_mask_t tmp;
1782 tmp = apicid_to_cpu_present(mp_ioapics[apic].mpc_apicid); 1790 tmp = apicid_to_cpu_present(mp_ioapics[apic].mp_apicid);
1783 apic_printk(APIC_VERBOSE, "Setting %d in the " 1791 apic_printk(APIC_VERBOSE, "Setting %d in the "
1784 "phys_id_present_map\n", 1792 "phys_id_present_map\n",
1785 mp_ioapics[apic].mpc_apicid); 1793 mp_ioapics[apic].mp_apicid);
1786 physids_or(phys_id_present_map, phys_id_present_map, tmp); 1794 physids_or(phys_id_present_map, phys_id_present_map, tmp);
1787 } 1795 }
1788 1796
@@ -1791,21 +1799,21 @@ static void __init setup_ioapic_ids_from_mpc(void)
1791 * We need to adjust the IRQ routing table 1799 * We need to adjust the IRQ routing table
1792 * if the ID changed. 1800 * if the ID changed.
1793 */ 1801 */
1794 if (old_id != mp_ioapics[apic].mpc_apicid) 1802 if (old_id != mp_ioapics[apic].mp_apicid)
1795 for (i = 0; i < mp_irq_entries; i++) 1803 for (i = 0; i < mp_irq_entries; i++)
1796 if (mp_irqs[i].mpc_dstapic == old_id) 1804 if (mp_irqs[i].mp_dstapic == old_id)
1797 mp_irqs[i].mpc_dstapic 1805 mp_irqs[i].mp_dstapic
1798 = mp_ioapics[apic].mpc_apicid; 1806 = mp_ioapics[apic].mp_apicid;
1799 1807
1800 /* 1808 /*
1801 * Read the right value from the MPC table and 1809 * Read the right value from the MPC table and
1802 * write it into the ID register. 1810 * write it into the ID register.
1803 */ 1811 */
1804 apic_printk(APIC_VERBOSE, KERN_INFO 1812 apic_printk(APIC_VERBOSE, KERN_INFO
1805 "...changing IO-APIC physical APIC ID to %d ...", 1813 "...changing IO-APIC physical APIC ID to %d ...",
1806 mp_ioapics[apic].mpc_apicid); 1814 mp_ioapics[apic].mp_apicid);
1807 1815
1808 reg_00.bits.ID = mp_ioapics[apic].mpc_apicid; 1816 reg_00.bits.ID = mp_ioapics[apic].mp_apicid;
1809 spin_lock_irqsave(&ioapic_lock, flags); 1817 spin_lock_irqsave(&ioapic_lock, flags);
1810 io_apic_write(apic, 0, reg_00.raw); 1818 io_apic_write(apic, 0, reg_00.raw);
1811 spin_unlock_irqrestore(&ioapic_lock, flags); 1819 spin_unlock_irqrestore(&ioapic_lock, flags);
@@ -1816,15 +1824,12 @@ static void __init setup_ioapic_ids_from_mpc(void)
1816 spin_lock_irqsave(&ioapic_lock, flags); 1824 spin_lock_irqsave(&ioapic_lock, flags);
1817 reg_00.raw = io_apic_read(apic, 0); 1825 reg_00.raw = io_apic_read(apic, 0);
1818 spin_unlock_irqrestore(&ioapic_lock, flags); 1826 spin_unlock_irqrestore(&ioapic_lock, flags);
1819 if (reg_00.bits.ID != mp_ioapics[apic].mpc_apicid) 1827 if (reg_00.bits.ID != mp_ioapics[apic].mp_apicid)
1820 printk("could not set ID!\n"); 1828 printk("could not set ID!\n");
1821 else 1829 else
1822 apic_printk(APIC_VERBOSE, " ok.\n"); 1830 apic_printk(APIC_VERBOSE, " ok.\n");
1823 } 1831 }
1824} 1832}
1825#else
1826static void __init setup_ioapic_ids_from_mpc(void) { }
1827#endif
1828 1833
1829int no_timer_check __initdata; 1834int no_timer_check __initdata;
1830 1835
@@ -2015,12 +2020,12 @@ static inline void init_IO_APIC_traps(void)
2015 * The local APIC irq-chip implementation: 2020 * The local APIC irq-chip implementation:
2016 */ 2021 */
2017 2022
2018static void ack_apic(unsigned int irq) 2023static void ack_lapic_irq(unsigned int irq)
2019{ 2024{
2020 ack_APIC_irq(); 2025 ack_APIC_irq();
2021} 2026}
2022 2027
2023static void mask_lapic_irq (unsigned int irq) 2028static void mask_lapic_irq(unsigned int irq)
2024{ 2029{
2025 unsigned long v; 2030 unsigned long v;
2026 2031
@@ -2028,7 +2033,7 @@ static void mask_lapic_irq (unsigned int irq)
2028 apic_write_around(APIC_LVT0, v | APIC_LVT_MASKED); 2033 apic_write_around(APIC_LVT0, v | APIC_LVT_MASKED);
2029} 2034}
2030 2035
2031static void unmask_lapic_irq (unsigned int irq) 2036static void unmask_lapic_irq(unsigned int irq)
2032{ 2037{
2033 unsigned long v; 2038 unsigned long v;
2034 2039
@@ -2037,23 +2042,31 @@ static void unmask_lapic_irq (unsigned int irq)
2037} 2042}
2038 2043
2039static struct irq_chip lapic_chip __read_mostly = { 2044static struct irq_chip lapic_chip __read_mostly = {
2040 .name = "local-APIC-edge", 2045 .name = "local-APIC",
2041 .mask = mask_lapic_irq, 2046 .mask = mask_lapic_irq,
2042 .unmask = unmask_lapic_irq, 2047 .unmask = unmask_lapic_irq,
2043 .eoi = ack_apic, 2048 .ack = ack_lapic_irq,
2044}; 2049};
2045 2050
2051static void lapic_register_intr(int irq, int vector)
2052{
2053 irq_desc[irq].status &= ~IRQ_LEVEL;
2054 set_irq_chip_and_handler_name(irq, &lapic_chip, handle_edge_irq,
2055 "edge");
2056 set_intr_gate(vector, interrupt[irq]);
2057}
2058
2046static void __init setup_nmi(void) 2059static void __init setup_nmi(void)
2047{ 2060{
2048 /* 2061 /*
2049 * Dirty trick to enable the NMI watchdog ... 2062 * Dirty trick to enable the NMI watchdog ...
2050 * We put the 8259A master into AEOI mode and 2063 * We put the 8259A master into AEOI mode and
2051 * unmask on all local APICs LVT0 as NMI. 2064 * unmask on all local APICs LVT0 as NMI.
2052 * 2065 *
2053 * The idea to use the 8259A in AEOI mode ('8259A Virtual Wire') 2066 * The idea to use the 8259A in AEOI mode ('8259A Virtual Wire')
2054 * is from Maciej W. Rozycki - so we do not have to EOI from 2067 * is from Maciej W. Rozycki - so we do not have to EOI from
2055 * the NMI handler or the timer interrupt. 2068 * the NMI handler or the timer interrupt.
2056 */ 2069 */
2057 apic_printk(APIC_VERBOSE, KERN_INFO "activating NMI Watchdog ..."); 2070 apic_printk(APIC_VERBOSE, KERN_INFO "activating NMI Watchdog ...");
2058 2071
2059 enable_NMI_through_LVT0(); 2072 enable_NMI_through_LVT0();
@@ -2129,6 +2142,7 @@ static inline void __init unlock_ExtINT_logic(void)
2129static inline void __init check_timer(void) 2142static inline void __init check_timer(void)
2130{ 2143{
2131 int apic1, pin1, apic2, pin2; 2144 int apic1, pin1, apic2, pin2;
2145 int no_pin1 = 0;
2132 int vector; 2146 int vector;
2133 unsigned int ver; 2147 unsigned int ver;
2134 unsigned long flags; 2148 unsigned long flags;
@@ -2146,21 +2160,17 @@ static inline void __init check_timer(void)
2146 set_intr_gate(vector, interrupt[0]); 2160 set_intr_gate(vector, interrupt[0]);
2147 2161
2148 /* 2162 /*
2149 * Subtle, code in do_timer_interrupt() expects an AEOI 2163 * As IRQ0 is to be enabled in the 8259A, the virtual
2150 * mode for the 8259A whenever interrupts are routed 2164 * wire has to be disabled in the local APIC. Also
2151 * through I/O APICs. Also IRQ0 has to be enabled in 2165 * timer interrupts need to be acknowledged manually in
2152 * the 8259A which implies the virtual wire has to be 2166 * the 8259A for the i82489DX when using the NMI
2153 * disabled in the local APIC. Finally timer interrupts 2167 * watchdog as that APIC treats NMIs as level-triggered.
2154 * need to be acknowledged manually in the 8259A for 2168 * The AEOI mode will finish them in the 8259A
2155 * timer_interrupt() and for the i82489DX when using 2169 * automatically.
2156 * the NMI watchdog.
2157 */ 2170 */
2158 apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT); 2171 apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
2159 init_8259A(1); 2172 init_8259A(1);
2160 timer_ack = !cpu_has_tsc; 2173 timer_ack = (nmi_watchdog == NMI_IO_APIC && !APIC_INTEGRATED(ver));
2161 timer_ack |= (nmi_watchdog == NMI_IO_APIC && !APIC_INTEGRATED(ver));
2162 if (timer_over_8254 > 0)
2163 enable_8259A_irq(0);
2164 2174
2165 pin1 = find_isa_irq_pin(0, mp_INT); 2175 pin1 = find_isa_irq_pin(0, mp_INT);
2166 apic1 = find_isa_irq_apic(0, mp_INT); 2176 apic1 = find_isa_irq_apic(0, mp_INT);
@@ -2170,14 +2180,33 @@ static inline void __init check_timer(void)
2170 printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n", 2180 printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n",
2171 vector, apic1, pin1, apic2, pin2); 2181 vector, apic1, pin1, apic2, pin2);
2172 2182
2183 /*
2184 * Some BIOS writers are clueless and report the ExtINTA
2185 * I/O APIC input from the cascaded 8259A as the timer
2186 * interrupt input. So just in case, if only one pin
2187 * was found above, try it both directly and through the
2188 * 8259A.
2189 */
2190 if (pin1 == -1) {
2191 pin1 = pin2;
2192 apic1 = apic2;
2193 no_pin1 = 1;
2194 } else if (pin2 == -1) {
2195 pin2 = pin1;
2196 apic2 = apic1;
2197 }
2198
2173 if (pin1 != -1) { 2199 if (pin1 != -1) {
2174 /* 2200 /*
2175 * Ok, does IRQ0 through the IOAPIC work? 2201 * Ok, does IRQ0 through the IOAPIC work?
2176 */ 2202 */
2203 if (no_pin1) {
2204 add_pin_to_irq(0, apic1, pin1);
2205 setup_timer_IRQ0_pin(apic1, pin1, vector);
2206 }
2177 unmask_IO_APIC_irq(0); 2207 unmask_IO_APIC_irq(0);
2178 if (timer_irq_works()) { 2208 if (timer_irq_works()) {
2179 if (nmi_watchdog == NMI_IO_APIC) { 2209 if (nmi_watchdog == NMI_IO_APIC) {
2180 disable_8259A_irq(0);
2181 setup_nmi(); 2210 setup_nmi();
2182 enable_8259A_irq(0); 2211 enable_8259A_irq(0);
2183 } 2212 }
@@ -2186,45 +2215,47 @@ static inline void __init check_timer(void)
2186 goto out; 2215 goto out;
2187 } 2216 }
2188 clear_IO_APIC_pin(apic1, pin1); 2217 clear_IO_APIC_pin(apic1, pin1);
2189 printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to " 2218 if (!no_pin1)
2190 "IO-APIC\n"); 2219 printk(KERN_ERR "..MP-BIOS bug: "
2191 } 2220 "8254 timer not connected to IO-APIC\n");
2192 2221
2193 printk(KERN_INFO "...trying to set up timer (IRQ0) through the 8259A ... "); 2222 printk(KERN_INFO "...trying to set up timer (IRQ0) "
2194 if (pin2 != -1) { 2223 "through the 8259A ... ");
2195 printk("\n..... (found pin %d) ...", pin2); 2224 printk("\n..... (found pin %d) ...", pin2);
2196 /* 2225 /*
2197 * legacy devices should be connected to IO APIC #0 2226 * legacy devices should be connected to IO APIC #0
2198 */ 2227 */
2199 setup_ExtINT_IRQ0_pin(apic2, pin2, vector); 2228 replace_pin_at_irq(0, apic1, pin1, apic2, pin2);
2229 setup_timer_IRQ0_pin(apic2, pin2, vector);
2230 unmask_IO_APIC_irq(0);
2231 enable_8259A_irq(0);
2200 if (timer_irq_works()) { 2232 if (timer_irq_works()) {
2201 printk("works.\n"); 2233 printk("works.\n");
2202 if (pin1 != -1) 2234 timer_through_8259 = 1;
2203 replace_pin_at_irq(0, apic1, pin1, apic2, pin2);
2204 else
2205 add_pin_to_irq(0, apic2, pin2);
2206 if (nmi_watchdog == NMI_IO_APIC) { 2235 if (nmi_watchdog == NMI_IO_APIC) {
2236 disable_8259A_irq(0);
2207 setup_nmi(); 2237 setup_nmi();
2238 enable_8259A_irq(0);
2208 } 2239 }
2209 goto out; 2240 goto out;
2210 } 2241 }
2211 /* 2242 /*
2212 * Cleanup, just in case ... 2243 * Cleanup, just in case ...
2213 */ 2244 */
2245 disable_8259A_irq(0);
2214 clear_IO_APIC_pin(apic2, pin2); 2246 clear_IO_APIC_pin(apic2, pin2);
2247 printk(" failed.\n");
2215 } 2248 }
2216 printk(" failed.\n");
2217 2249
2218 if (nmi_watchdog == NMI_IO_APIC) { 2250 if (nmi_watchdog == NMI_IO_APIC) {
2219 printk(KERN_WARNING "timer doesn't work through the IO-APIC - disabling NMI Watchdog!\n"); 2251 printk(KERN_WARNING "timer doesn't work through the IO-APIC - disabling NMI Watchdog!\n");
2220 nmi_watchdog = 0; 2252 nmi_watchdog = NMI_NONE;
2221 } 2253 }
2254 timer_ack = 0;
2222 2255
2223 printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ..."); 2256 printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
2224 2257
2225 disable_8259A_irq(0); 2258 lapic_register_intr(0, vector);
2226 set_irq_chip_and_handler_name(0, &lapic_chip, handle_fasteoi_irq,
2227 "fasteoi");
2228 apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */ 2259 apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */
2229 enable_8259A_irq(0); 2260 enable_8259A_irq(0);
2230 2261
@@ -2232,12 +2263,12 @@ static inline void __init check_timer(void)
2232 printk(" works.\n"); 2263 printk(" works.\n");
2233 goto out; 2264 goto out;
2234 } 2265 }
2266 disable_8259A_irq(0);
2235 apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector); 2267 apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector);
2236 printk(" failed.\n"); 2268 printk(" failed.\n");
2237 2269
2238 printk(KERN_INFO "...trying to set up timer as ExtINT IRQ..."); 2270 printk(KERN_INFO "...trying to set up timer as ExtINT IRQ...");
2239 2271
2240 timer_ack = 0;
2241 init_8259A(0); 2272 init_8259A(0);
2242 make_8259A_irq(0); 2273 make_8259A_irq(0);
2243 apic_write_around(APIC_LVT0, APIC_DM_EXTINT); 2274 apic_write_around(APIC_LVT0, APIC_DM_EXTINT);
@@ -2256,11 +2287,21 @@ out:
2256} 2287}
2257 2288
2258/* 2289/*
2259 * 2290 * Traditionally ISA IRQ2 is the cascade IRQ, and is not available
2260 * IRQ's that are handled by the PIC in the MPS IOAPIC case. 2291 * to devices. However there may be an I/O APIC pin available for
2261 * - IRQ2 is the cascade IRQ, and cannot be a io-apic IRQ. 2292 * this interrupt regardless. The pin may be left unconnected, but
2262 * Linux doesn't really care, as it's not actually used 2293 * typically it will be reused as an ExtINT cascade interrupt for
2263 * for any interrupt handling anyway. 2294 * the master 8259A. In the MPS case such a pin will normally be
2295 * reported as an ExtINT interrupt in the MP table. With ACPI
2296 * there is no provision for ExtINT interrupts, and in the absence
2297 * of an override it would be treated as an ordinary ISA I/O APIC
2298 * interrupt, that is edge-triggered and unmasked by default. We
2299 * used to do this, but it caused problems on some systems because
2300 * of the NMI watchdog and sometimes IRQ0 of the 8254 timer using
2301 * the same ExtINT cascade interrupt to drive the local APIC of the
2302 * bootstrap processor. Therefore we refrain from routing IRQ2 to
2303 * the I/O APIC in all cases now. No actual device should request
2304 * it anyway. --macro
2264 */ 2305 */
2265#define PIC_IRQS (1 << PIC_CASCADE_IR) 2306#define PIC_IRQS (1 << PIC_CASCADE_IR)
2266 2307
@@ -2269,15 +2310,12 @@ void __init setup_IO_APIC(void)
2269 int i; 2310 int i;
2270 2311
2271 /* Reserve all the system vectors. */ 2312 /* Reserve all the system vectors. */
2272 for (i = FIRST_SYSTEM_VECTOR; i < NR_VECTORS; i++) 2313 for (i = first_system_vector; i < NR_VECTORS; i++)
2273 set_bit(i, used_vectors); 2314 set_bit(i, used_vectors);
2274 2315
2275 enable_IO_APIC(); 2316 enable_IO_APIC();
2276 2317
2277 if (acpi_ioapic) 2318 io_apic_irqs = ~PIC_IRQS;
2278 io_apic_irqs = ~0; /* all IRQs go through IOAPIC */
2279 else
2280 io_apic_irqs = ~PIC_IRQS;
2281 2319
2282 printk("ENABLING IO-APIC IRQs\n"); 2320 printk("ENABLING IO-APIC IRQs\n");
2283 2321
@@ -2294,28 +2332,14 @@ void __init setup_IO_APIC(void)
2294 print_IO_APIC(); 2332 print_IO_APIC();
2295} 2333}
2296 2334
2297static int __init setup_disable_8254_timer(char *s)
2298{
2299 timer_over_8254 = -1;
2300 return 1;
2301}
2302static int __init setup_enable_8254_timer(char *s)
2303{
2304 timer_over_8254 = 2;
2305 return 1;
2306}
2307
2308__setup("disable_8254_timer", setup_disable_8254_timer);
2309__setup("enable_8254_timer", setup_enable_8254_timer);
2310
2311/* 2335/*
2312 * Called after all the initialization is done. If we didnt find any 2336 * Called after all the initialization is done. If we didnt find any
2313 * APIC bugs then we can allow the modify fast path 2337 * APIC bugs then we can allow the modify fast path
2314 */ 2338 */
2315 2339
2316static int __init io_apic_bug_finalize(void) 2340static int __init io_apic_bug_finalize(void)
2317{ 2341{
2318 if(sis_apic_bug == -1) 2342 if (sis_apic_bug == -1)
2319 sis_apic_bug = 0; 2343 sis_apic_bug = 0;
2320 return 0; 2344 return 0;
2321} 2345}
@@ -2326,17 +2350,17 @@ struct sysfs_ioapic_data {
2326 struct sys_device dev; 2350 struct sys_device dev;
2327 struct IO_APIC_route_entry entry[0]; 2351 struct IO_APIC_route_entry entry[0];
2328}; 2352};
2329static struct sysfs_ioapic_data * mp_ioapic_data[MAX_IO_APICS]; 2353static struct sysfs_ioapic_data *mp_ioapic_data[MAX_IO_APICS];
2330 2354
2331static int ioapic_suspend(struct sys_device *dev, pm_message_t state) 2355static int ioapic_suspend(struct sys_device *dev, pm_message_t state)
2332{ 2356{
2333 struct IO_APIC_route_entry *entry; 2357 struct IO_APIC_route_entry *entry;
2334 struct sysfs_ioapic_data *data; 2358 struct sysfs_ioapic_data *data;
2335 int i; 2359 int i;
2336 2360
2337 data = container_of(dev, struct sysfs_ioapic_data, dev); 2361 data = container_of(dev, struct sysfs_ioapic_data, dev);
2338 entry = data->entry; 2362 entry = data->entry;
2339 for (i = 0; i < nr_ioapic_registers[dev->id]; i ++) 2363 for (i = 0; i < nr_ioapic_registers[dev->id]; i++)
2340 entry[i] = ioapic_read_entry(dev->id, i); 2364 entry[i] = ioapic_read_entry(dev->id, i);
2341 2365
2342 return 0; 2366 return 0;
@@ -2349,18 +2373,18 @@ static int ioapic_resume(struct sys_device *dev)
2349 unsigned long flags; 2373 unsigned long flags;
2350 union IO_APIC_reg_00 reg_00; 2374 union IO_APIC_reg_00 reg_00;
2351 int i; 2375 int i;
2352 2376
2353 data = container_of(dev, struct sysfs_ioapic_data, dev); 2377 data = container_of(dev, struct sysfs_ioapic_data, dev);
2354 entry = data->entry; 2378 entry = data->entry;
2355 2379
2356 spin_lock_irqsave(&ioapic_lock, flags); 2380 spin_lock_irqsave(&ioapic_lock, flags);
2357 reg_00.raw = io_apic_read(dev->id, 0); 2381 reg_00.raw = io_apic_read(dev->id, 0);
2358 if (reg_00.bits.ID != mp_ioapics[dev->id].mpc_apicid) { 2382 if (reg_00.bits.ID != mp_ioapics[dev->id].mp_apicid) {
2359 reg_00.bits.ID = mp_ioapics[dev->id].mpc_apicid; 2383 reg_00.bits.ID = mp_ioapics[dev->id].mp_apicid;
2360 io_apic_write(dev->id, 0, reg_00.raw); 2384 io_apic_write(dev->id, 0, reg_00.raw);
2361 } 2385 }
2362 spin_unlock_irqrestore(&ioapic_lock, flags); 2386 spin_unlock_irqrestore(&ioapic_lock, flags);
2363 for (i = 0; i < nr_ioapic_registers[dev->id]; i ++) 2387 for (i = 0; i < nr_ioapic_registers[dev->id]; i++)
2364 ioapic_write_entry(dev->id, i, entry[i]); 2388 ioapic_write_entry(dev->id, i, entry[i]);
2365 2389
2366 return 0; 2390 return 0;
@@ -2374,24 +2398,23 @@ static struct sysdev_class ioapic_sysdev_class = {
2374 2398
2375static int __init ioapic_init_sysfs(void) 2399static int __init ioapic_init_sysfs(void)
2376{ 2400{
2377 struct sys_device * dev; 2401 struct sys_device *dev;
2378 int i, size, error = 0; 2402 int i, size, error = 0;
2379 2403
2380 error = sysdev_class_register(&ioapic_sysdev_class); 2404 error = sysdev_class_register(&ioapic_sysdev_class);
2381 if (error) 2405 if (error)
2382 return error; 2406 return error;
2383 2407
2384 for (i = 0; i < nr_ioapics; i++ ) { 2408 for (i = 0; i < nr_ioapics; i++) {
2385 size = sizeof(struct sys_device) + nr_ioapic_registers[i] 2409 size = sizeof(struct sys_device) + nr_ioapic_registers[i]
2386 * sizeof(struct IO_APIC_route_entry); 2410 * sizeof(struct IO_APIC_route_entry);
2387 mp_ioapic_data[i] = kmalloc(size, GFP_KERNEL); 2411 mp_ioapic_data[i] = kzalloc(size, GFP_KERNEL);
2388 if (!mp_ioapic_data[i]) { 2412 if (!mp_ioapic_data[i]) {
2389 printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i); 2413 printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);
2390 continue; 2414 continue;
2391 } 2415 }
2392 memset(mp_ioapic_data[i], 0, size);
2393 dev = &mp_ioapic_data[i]->dev; 2416 dev = &mp_ioapic_data[i]->dev;
2394 dev->id = i; 2417 dev->id = i;
2395 dev->cls = &ioapic_sysdev_class; 2418 dev->cls = &ioapic_sysdev_class;
2396 error = sysdev_register(dev); 2419 error = sysdev_register(dev);
2397 if (error) { 2420 if (error) {
@@ -2466,7 +2489,7 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_ms
2466 msg->address_lo = 2489 msg->address_lo =
2467 MSI_ADDR_BASE_LO | 2490 MSI_ADDR_BASE_LO |
2468 ((INT_DEST_MODE == 0) ? 2491 ((INT_DEST_MODE == 0) ?
2469 MSI_ADDR_DEST_MODE_PHYSICAL: 2492MSI_ADDR_DEST_MODE_PHYSICAL:
2470 MSI_ADDR_DEST_MODE_LOGICAL) | 2493 MSI_ADDR_DEST_MODE_LOGICAL) |
2471 ((INT_DELIVERY_MODE != dest_LowestPrio) ? 2494 ((INT_DELIVERY_MODE != dest_LowestPrio) ?
2472 MSI_ADDR_REDIRECTION_CPU: 2495 MSI_ADDR_REDIRECTION_CPU:
@@ -2477,7 +2500,7 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_ms
2477 MSI_DATA_TRIGGER_EDGE | 2500 MSI_DATA_TRIGGER_EDGE |
2478 MSI_DATA_LEVEL_ASSERT | 2501 MSI_DATA_LEVEL_ASSERT |
2479 ((INT_DELIVERY_MODE != dest_LowestPrio) ? 2502 ((INT_DELIVERY_MODE != dest_LowestPrio) ?
2480 MSI_DATA_DELIVERY_FIXED: 2503MSI_DATA_DELIVERY_FIXED:
2481 MSI_DATA_DELIVERY_LOWPRI) | 2504 MSI_DATA_DELIVERY_LOWPRI) |
2482 MSI_DATA_VECTOR(vector); 2505 MSI_DATA_VECTOR(vector);
2483 } 2506 }
@@ -2648,12 +2671,12 @@ int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev)
2648#endif /* CONFIG_HT_IRQ */ 2671#endif /* CONFIG_HT_IRQ */
2649 2672
2650/* -------------------------------------------------------------------------- 2673/* --------------------------------------------------------------------------
2651 ACPI-based IOAPIC Configuration 2674 ACPI-based IOAPIC Configuration
2652 -------------------------------------------------------------------------- */ 2675 -------------------------------------------------------------------------- */
2653 2676
2654#ifdef CONFIG_ACPI 2677#ifdef CONFIG_ACPI
2655 2678
2656int __init io_apic_get_unique_id (int ioapic, int apic_id) 2679int __init io_apic_get_unique_id(int ioapic, int apic_id)
2657{ 2680{
2658 union IO_APIC_reg_00 reg_00; 2681 union IO_APIC_reg_00 reg_00;
2659 static physid_mask_t apic_id_map = PHYSID_MASK_NONE; 2682 static physid_mask_t apic_id_map = PHYSID_MASK_NONE;
@@ -2662,10 +2685,10 @@ int __init io_apic_get_unique_id (int ioapic, int apic_id)
2662 int i = 0; 2685 int i = 0;
2663 2686
2664 /* 2687 /*
2665 * The P4 platform supports up to 256 APIC IDs on two separate APIC 2688 * The P4 platform supports up to 256 APIC IDs on two separate APIC
2666 * buses (one for LAPICs, one for IOAPICs), where predecessors only 2689 * buses (one for LAPICs, one for IOAPICs), where predecessors only
2667 * supports up to 16 on one shared APIC bus. 2690 * supports up to 16 on one shared APIC bus.
2668 * 2691 *
2669 * TBD: Expand LAPIC/IOAPIC support on P4-class systems to take full 2692 * TBD: Expand LAPIC/IOAPIC support on P4-class systems to take full
2670 * advantage of new APIC bus architecture. 2693 * advantage of new APIC bus architecture.
2671 */ 2694 */
@@ -2684,7 +2707,7 @@ int __init io_apic_get_unique_id (int ioapic, int apic_id)
2684 } 2707 }
2685 2708
2686 /* 2709 /*
2687 * Every APIC in a system must have a unique ID or we get lots of nice 2710 * Every APIC in a system must have a unique ID or we get lots of nice
2688 * 'stuck on smp_invalidate_needed IPI wait' messages. 2711 * 'stuck on smp_invalidate_needed IPI wait' messages.
2689 */ 2712 */
2690 if (check_apicid_used(apic_id_map, apic_id)) { 2713 if (check_apicid_used(apic_id_map, apic_id)) {
@@ -2701,7 +2724,7 @@ int __init io_apic_get_unique_id (int ioapic, int apic_id)
2701 "trying %d\n", ioapic, apic_id, i); 2724 "trying %d\n", ioapic, apic_id, i);
2702 2725
2703 apic_id = i; 2726 apic_id = i;
2704 } 2727 }
2705 2728
2706 tmp = apicid_to_cpu_present(apic_id); 2729 tmp = apicid_to_cpu_present(apic_id);
2707 physids_or(apic_id_map, apic_id_map, tmp); 2730 physids_or(apic_id_map, apic_id_map, tmp);
@@ -2728,7 +2751,7 @@ int __init io_apic_get_unique_id (int ioapic, int apic_id)
2728} 2751}
2729 2752
2730 2753
2731int __init io_apic_get_version (int ioapic) 2754int __init io_apic_get_version(int ioapic)
2732{ 2755{
2733 union IO_APIC_reg_01 reg_01; 2756 union IO_APIC_reg_01 reg_01;
2734 unsigned long flags; 2757 unsigned long flags;
@@ -2741,7 +2764,7 @@ int __init io_apic_get_version (int ioapic)
2741} 2764}
2742 2765
2743 2766
2744int __init io_apic_get_redir_entries (int ioapic) 2767int __init io_apic_get_redir_entries(int ioapic)
2745{ 2768{
2746 union IO_APIC_reg_01 reg_01; 2769 union IO_APIC_reg_01 reg_01;
2747 unsigned long flags; 2770 unsigned long flags;
@@ -2754,7 +2777,7 @@ int __init io_apic_get_redir_entries (int ioapic)
2754} 2777}
2755 2778
2756 2779
2757int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int active_high_low) 2780int io_apic_set_pci_routing(int ioapic, int pin, int irq, int edge_level, int active_high_low)
2758{ 2781{
2759 struct IO_APIC_route_entry entry; 2782 struct IO_APIC_route_entry entry;
2760 2783
@@ -2770,7 +2793,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int a
2770 * corresponding device driver registers for this IRQ. 2793 * corresponding device driver registers for this IRQ.
2771 */ 2794 */
2772 2795
2773 memset(&entry,0,sizeof(entry)); 2796 memset(&entry, 0, sizeof(entry));
2774 2797
2775 entry.delivery_mode = INT_DELIVERY_MODE; 2798 entry.delivery_mode = INT_DELIVERY_MODE;
2776 entry.dest_mode = INT_DEST_MODE; 2799 entry.dest_mode = INT_DEST_MODE;
@@ -2789,7 +2812,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int a
2789 2812
2790 apic_printk(APIC_DEBUG, KERN_DEBUG "IOAPIC[%d]: Set PCI routing entry " 2813 apic_printk(APIC_DEBUG, KERN_DEBUG "IOAPIC[%d]: Set PCI routing entry "
2791 "(%d-%d -> 0x%x -> IRQ %d Mode:%i Active:%i)\n", ioapic, 2814 "(%d-%d -> 0x%x -> IRQ %d Mode:%i Active:%i)\n", ioapic,
2792 mp_ioapics[ioapic].mpc_apicid, pin, entry.vector, irq, 2815 mp_ioapics[ioapic].mp_apicid, pin, entry.vector, irq,
2793 edge_level, active_high_low); 2816 edge_level, active_high_low);
2794 2817
2795 ioapic_register_intr(irq, entry.vector, edge_level); 2818 ioapic_register_intr(irq, entry.vector, edge_level);
@@ -2810,8 +2833,8 @@ int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
2810 return -1; 2833 return -1;
2811 2834
2812 for (i = 0; i < mp_irq_entries; i++) 2835 for (i = 0; i < mp_irq_entries; i++)
2813 if (mp_irqs[i].mpc_irqtype == mp_INT && 2836 if (mp_irqs[i].mp_irqtype == mp_INT &&
2814 mp_irqs[i].mpc_srcbusirq == bus_irq) 2837 mp_irqs[i].mp_srcbusirq == bus_irq)
2815 break; 2838 break;
2816 if (i >= mp_irq_entries) 2839 if (i >= mp_irq_entries)
2817 return -1; 2840 return -1;
@@ -2844,3 +2867,34 @@ static int __init parse_noapic(char *arg)
2844 return 0; 2867 return 0;
2845} 2868}
2846early_param("noapic", parse_noapic); 2869early_param("noapic", parse_noapic);
2870
2871void __init ioapic_init_mappings(void)
2872{
2873 unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0;
2874 int i;
2875
2876 for (i = 0; i < nr_ioapics; i++) {
2877 if (smp_found_config) {
2878 ioapic_phys = mp_ioapics[i].mp_apicaddr;
2879 if (!ioapic_phys) {
2880 printk(KERN_ERR
2881 "WARNING: bogus zero IO-APIC "
2882 "address found in MPTABLE, "
2883 "disabling IO/APIC support!\n");
2884 smp_found_config = 0;
2885 skip_ioapic_setup = 1;
2886 goto fake_ioapic_page;
2887 }
2888 } else {
2889fake_ioapic_page:
2890 ioapic_phys = (unsigned long)
2891 alloc_bootmem_pages(PAGE_SIZE);
2892 ioapic_phys = __pa(ioapic_phys);
2893 }
2894 set_fixmap_nocache(idx, ioapic_phys);
2895 printk(KERN_DEBUG "mapped IOAPIC to %08lx (%08lx)\n",
2896 __fix_to_virt(idx), ioapic_phys);
2897 idx++;
2898 }
2899}
2900
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index ef1a8dfcc529..6510cde36b35 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -61,7 +61,7 @@ struct irq_cfg {
61}; 61};
62 62
63/* irq_cfg is indexed by the sum of all RTEs in all I/O APICs. */ 63/* irq_cfg is indexed by the sum of all RTEs in all I/O APICs. */
64struct irq_cfg irq_cfg[NR_IRQS] __read_mostly = { 64static struct irq_cfg irq_cfg[NR_IRQS] __read_mostly = {
65 [0] = { .domain = CPU_MASK_ALL, .vector = IRQ0_VECTOR, }, 65 [0] = { .domain = CPU_MASK_ALL, .vector = IRQ0_VECTOR, },
66 [1] = { .domain = CPU_MASK_ALL, .vector = IRQ1_VECTOR, }, 66 [1] = { .domain = CPU_MASK_ALL, .vector = IRQ1_VECTOR, },
67 [2] = { .domain = CPU_MASK_ALL, .vector = IRQ2_VECTOR, }, 67 [2] = { .domain = CPU_MASK_ALL, .vector = IRQ2_VECTOR, },
@@ -82,6 +82,10 @@ struct irq_cfg irq_cfg[NR_IRQS] __read_mostly = {
82 82
83static int assign_irq_vector(int irq, cpumask_t mask); 83static int assign_irq_vector(int irq, cpumask_t mask);
84 84
85int first_system_vector = 0xfe;
86
87char system_vectors[NR_VECTORS] = { [0 ... NR_VECTORS-1] = SYS_VECTOR_FREE};
88
85#define __apicdebuginit __init 89#define __apicdebuginit __init
86 90
87int sis_apic_bug; /* not actually supported, dummy for compile */ 91int sis_apic_bug; /* not actually supported, dummy for compile */
@@ -90,7 +94,7 @@ static int no_timer_check;
90 94
91static int disable_timer_pin_1 __initdata; 95static int disable_timer_pin_1 __initdata;
92 96
93int timer_over_8254 __initdata = 1; 97int timer_through_8259 __initdata;
94 98
95/* Where if anywhere is the i8259 connect in external int mode */ 99/* Where if anywhere is the i8259 connect in external int mode */
96static struct { int pin, apic; } ioapic_i8259 = { -1, -1 }; 100static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
@@ -104,15 +108,17 @@ DEFINE_SPINLOCK(vector_lock);
104int nr_ioapic_registers[MAX_IO_APICS]; 108int nr_ioapic_registers[MAX_IO_APICS];
105 109
106/* I/O APIC entries */ 110/* I/O APIC entries */
107struct mpc_config_ioapic mp_ioapics[MAX_IO_APICS]; 111struct mp_config_ioapic mp_ioapics[MAX_IO_APICS];
108int nr_ioapics; 112int nr_ioapics;
109 113
110/* MP IRQ source entries */ 114/* MP IRQ source entries */
111struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES]; 115struct mp_config_intsrc mp_irqs[MAX_IRQ_SOURCES];
112 116
113/* # of MP IRQ source entries */ 117/* # of MP IRQ source entries */
114int mp_irq_entries; 118int mp_irq_entries;
115 119
120DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
121
116/* 122/*
117 * Rough estimation of how many shared IRQs there are, can 123 * Rough estimation of how many shared IRQs there are, can
118 * be changed anytime. 124 * be changed anytime.
@@ -140,7 +146,7 @@ struct io_apic {
140static __attribute_const__ struct io_apic __iomem *io_apic_base(int idx) 146static __attribute_const__ struct io_apic __iomem *io_apic_base(int idx)
141{ 147{
142 return (void __iomem *) __fix_to_virt(FIX_IO_APIC_BASE_0 + idx) 148 return (void __iomem *) __fix_to_virt(FIX_IO_APIC_BASE_0 + idx)
143 + (mp_ioapics[idx].mpc_apicaddr & ~PAGE_MASK); 149 + (mp_ioapics[idx].mp_apicaddr & ~PAGE_MASK);
144} 150}
145 151
146static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg) 152static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
@@ -183,7 +189,7 @@ static bool io_apic_level_ack_pending(unsigned int irq)
183 break; 189 break;
184 reg = io_apic_read(entry->apic, 0x10 + pin*2); 190 reg = io_apic_read(entry->apic, 0x10 + pin*2);
185 /* Is the remote IRR bit set? */ 191 /* Is the remote IRR bit set? */
186 if ((reg >> 14) & 1) { 192 if (reg & IO_APIC_REDIR_REMOTE_IRR) {
187 spin_unlock_irqrestore(&ioapic_lock, flags); 193 spin_unlock_irqrestore(&ioapic_lock, flags);
188 return true; 194 return true;
189 } 195 }
@@ -298,7 +304,7 @@ static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, u8 vector)
298 break; 304 break;
299 io_apic_write(apic, 0x11 + pin*2, dest); 305 io_apic_write(apic, 0x11 + pin*2, dest);
300 reg = io_apic_read(apic, 0x10 + pin*2); 306 reg = io_apic_read(apic, 0x10 + pin*2);
301 reg &= ~0x000000ff; 307 reg &= ~IO_APIC_REDIR_VECTOR_MASK;
302 reg |= vector; 308 reg |= vector;
303 io_apic_modify(apic, reg); 309 io_apic_modify(apic, reg);
304 if (!entry->next) 310 if (!entry->next)
@@ -360,16 +366,37 @@ static void add_pin_to_irq(unsigned int irq, int apic, int pin)
360 entry->pin = pin; 366 entry->pin = pin;
361} 367}
362 368
369/*
370 * Reroute an IRQ to a different pin.
371 */
372static void __init replace_pin_at_irq(unsigned int irq,
373 int oldapic, int oldpin,
374 int newapic, int newpin)
375{
376 struct irq_pin_list *entry = irq_2_pin + irq;
377
378 while (1) {
379 if (entry->apic == oldapic && entry->pin == oldpin) {
380 entry->apic = newapic;
381 entry->pin = newpin;
382 }
383 if (!entry->next)
384 break;
385 entry = irq_2_pin + entry->next;
386 }
387}
388
363 389
364#define DO_ACTION(name,R,ACTION, FINAL) \ 390#define DO_ACTION(name,R,ACTION, FINAL) \
365 \ 391 \
366 static void name##_IO_APIC_irq (unsigned int irq) \ 392 static void name##_IO_APIC_irq (unsigned int irq) \
367 __DO_ACTION(R, ACTION, FINAL) 393 __DO_ACTION(R, ACTION, FINAL)
368 394
369DO_ACTION( __mask, 0, |= 0x00010000, io_apic_sync(entry->apic) ) 395/* mask = 1 */
370 /* mask = 1 */ 396DO_ACTION(__mask, 0, |= IO_APIC_REDIR_MASKED, io_apic_sync(entry->apic))
371DO_ACTION( __unmask, 0, &= 0xfffeffff, ) 397
372 /* mask = 0 */ 398/* mask = 0 */
399DO_ACTION(__unmask, 0, &= ~IO_APIC_REDIR_MASKED, )
373 400
374static void mask_IO_APIC_irq (unsigned int irq) 401static void mask_IO_APIC_irq (unsigned int irq)
375{ 402{
@@ -430,20 +457,6 @@ static int __init disable_timer_pin_setup(char *arg)
430} 457}
431__setup("disable_timer_pin_1", disable_timer_pin_setup); 458__setup("disable_timer_pin_1", disable_timer_pin_setup);
432 459
433static int __init setup_disable_8254_timer(char *s)
434{
435 timer_over_8254 = -1;
436 return 1;
437}
438static int __init setup_enable_8254_timer(char *s)
439{
440 timer_over_8254 = 2;
441 return 1;
442}
443
444__setup("disable_8254_timer", setup_disable_8254_timer);
445__setup("enable_8254_timer", setup_enable_8254_timer);
446
447 460
448/* 461/*
449 * Find the IRQ entry number of a certain pin. 462 * Find the IRQ entry number of a certain pin.
@@ -453,10 +466,10 @@ static int find_irq_entry(int apic, int pin, int type)
453 int i; 466 int i;
454 467
455 for (i = 0; i < mp_irq_entries; i++) 468 for (i = 0; i < mp_irq_entries; i++)
456 if (mp_irqs[i].mpc_irqtype == type && 469 if (mp_irqs[i].mp_irqtype == type &&
457 (mp_irqs[i].mpc_dstapic == mp_ioapics[apic].mpc_apicid || 470 (mp_irqs[i].mp_dstapic == mp_ioapics[apic].mp_apicid ||
458 mp_irqs[i].mpc_dstapic == MP_APIC_ALL) && 471 mp_irqs[i].mp_dstapic == MP_APIC_ALL) &&
459 mp_irqs[i].mpc_dstirq == pin) 472 mp_irqs[i].mp_dstirq == pin)
460 return i; 473 return i;
461 474
462 return -1; 475 return -1;
@@ -470,13 +483,13 @@ static int __init find_isa_irq_pin(int irq, int type)
470 int i; 483 int i;
471 484
472 for (i = 0; i < mp_irq_entries; i++) { 485 for (i = 0; i < mp_irq_entries; i++) {
473 int lbus = mp_irqs[i].mpc_srcbus; 486 int lbus = mp_irqs[i].mp_srcbus;
474 487
475 if (test_bit(lbus, mp_bus_not_pci) && 488 if (test_bit(lbus, mp_bus_not_pci) &&
476 (mp_irqs[i].mpc_irqtype == type) && 489 (mp_irqs[i].mp_irqtype == type) &&
477 (mp_irqs[i].mpc_srcbusirq == irq)) 490 (mp_irqs[i].mp_srcbusirq == irq))
478 491
479 return mp_irqs[i].mpc_dstirq; 492 return mp_irqs[i].mp_dstirq;
480 } 493 }
481 return -1; 494 return -1;
482} 495}
@@ -486,17 +499,17 @@ static int __init find_isa_irq_apic(int irq, int type)
486 int i; 499 int i;
487 500
488 for (i = 0; i < mp_irq_entries; i++) { 501 for (i = 0; i < mp_irq_entries; i++) {
489 int lbus = mp_irqs[i].mpc_srcbus; 502 int lbus = mp_irqs[i].mp_srcbus;
490 503
491 if (test_bit(lbus, mp_bus_not_pci) && 504 if (test_bit(lbus, mp_bus_not_pci) &&
492 (mp_irqs[i].mpc_irqtype == type) && 505 (mp_irqs[i].mp_irqtype == type) &&
493 (mp_irqs[i].mpc_srcbusirq == irq)) 506 (mp_irqs[i].mp_srcbusirq == irq))
494 break; 507 break;
495 } 508 }
496 if (i < mp_irq_entries) { 509 if (i < mp_irq_entries) {
497 int apic; 510 int apic;
498 for(apic = 0; apic < nr_ioapics; apic++) { 511 for(apic = 0; apic < nr_ioapics; apic++) {
499 if (mp_ioapics[apic].mpc_apicid == mp_irqs[i].mpc_dstapic) 512 if (mp_ioapics[apic].mp_apicid == mp_irqs[i].mp_dstapic)
500 return apic; 513 return apic;
501 } 514 }
502 } 515 }
@@ -516,28 +529,28 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
516 529
517 apic_printk(APIC_DEBUG, "querying PCI -> IRQ mapping bus:%d, slot:%d, pin:%d.\n", 530 apic_printk(APIC_DEBUG, "querying PCI -> IRQ mapping bus:%d, slot:%d, pin:%d.\n",
518 bus, slot, pin); 531 bus, slot, pin);
519 if (mp_bus_id_to_pci_bus[bus] == -1) { 532 if (test_bit(bus, mp_bus_not_pci)) {
520 apic_printk(APIC_VERBOSE, "PCI BIOS passed nonexistent PCI bus %d!\n", bus); 533 apic_printk(APIC_VERBOSE, "PCI BIOS passed nonexistent PCI bus %d!\n", bus);
521 return -1; 534 return -1;
522 } 535 }
523 for (i = 0; i < mp_irq_entries; i++) { 536 for (i = 0; i < mp_irq_entries; i++) {
524 int lbus = mp_irqs[i].mpc_srcbus; 537 int lbus = mp_irqs[i].mp_srcbus;
525 538
526 for (apic = 0; apic < nr_ioapics; apic++) 539 for (apic = 0; apic < nr_ioapics; apic++)
527 if (mp_ioapics[apic].mpc_apicid == mp_irqs[i].mpc_dstapic || 540 if (mp_ioapics[apic].mp_apicid == mp_irqs[i].mp_dstapic ||
528 mp_irqs[i].mpc_dstapic == MP_APIC_ALL) 541 mp_irqs[i].mp_dstapic == MP_APIC_ALL)
529 break; 542 break;
530 543
531 if (!test_bit(lbus, mp_bus_not_pci) && 544 if (!test_bit(lbus, mp_bus_not_pci) &&
532 !mp_irqs[i].mpc_irqtype && 545 !mp_irqs[i].mp_irqtype &&
533 (bus == lbus) && 546 (bus == lbus) &&
534 (slot == ((mp_irqs[i].mpc_srcbusirq >> 2) & 0x1f))) { 547 (slot == ((mp_irqs[i].mp_srcbusirq >> 2) & 0x1f))) {
535 int irq = pin_2_irq(i,apic,mp_irqs[i].mpc_dstirq); 548 int irq = pin_2_irq(i,apic,mp_irqs[i].mp_dstirq);
536 549
537 if (!(apic || IO_APIC_IRQ(irq))) 550 if (!(apic || IO_APIC_IRQ(irq)))
538 continue; 551 continue;
539 552
540 if (pin == (mp_irqs[i].mpc_srcbusirq & 3)) 553 if (pin == (mp_irqs[i].mp_srcbusirq & 3))
541 return irq; 554 return irq;
542 /* 555 /*
543 * Use the first all-but-pin matching entry as a 556 * Use the first all-but-pin matching entry as a
@@ -565,13 +578,13 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
565 578
566static int MPBIOS_polarity(int idx) 579static int MPBIOS_polarity(int idx)
567{ 580{
568 int bus = mp_irqs[idx].mpc_srcbus; 581 int bus = mp_irqs[idx].mp_srcbus;
569 int polarity; 582 int polarity;
570 583
571 /* 584 /*
572 * Determine IRQ line polarity (high active or low active): 585 * Determine IRQ line polarity (high active or low active):
573 */ 586 */
574 switch (mp_irqs[idx].mpc_irqflag & 3) 587 switch (mp_irqs[idx].mp_irqflag & 3)
575 { 588 {
576 case 0: /* conforms, ie. bus-type dependent polarity */ 589 case 0: /* conforms, ie. bus-type dependent polarity */
577 if (test_bit(bus, mp_bus_not_pci)) 590 if (test_bit(bus, mp_bus_not_pci))
@@ -607,13 +620,13 @@ static int MPBIOS_polarity(int idx)
607 620
608static int MPBIOS_trigger(int idx) 621static int MPBIOS_trigger(int idx)
609{ 622{
610 int bus = mp_irqs[idx].mpc_srcbus; 623 int bus = mp_irqs[idx].mp_srcbus;
611 int trigger; 624 int trigger;
612 625
613 /* 626 /*
614 * Determine IRQ trigger mode (edge or level sensitive): 627 * Determine IRQ trigger mode (edge or level sensitive):
615 */ 628 */
616 switch ((mp_irqs[idx].mpc_irqflag>>2) & 3) 629 switch ((mp_irqs[idx].mp_irqflag>>2) & 3)
617 { 630 {
618 case 0: /* conforms, ie. bus-type dependent */ 631 case 0: /* conforms, ie. bus-type dependent */
619 if (test_bit(bus, mp_bus_not_pci)) 632 if (test_bit(bus, mp_bus_not_pci))
@@ -660,16 +673,16 @@ static inline int irq_trigger(int idx)
660static int pin_2_irq(int idx, int apic, int pin) 673static int pin_2_irq(int idx, int apic, int pin)
661{ 674{
662 int irq, i; 675 int irq, i;
663 int bus = mp_irqs[idx].mpc_srcbus; 676 int bus = mp_irqs[idx].mp_srcbus;
664 677
665 /* 678 /*
666 * Debugging check, we are in big trouble if this message pops up! 679 * Debugging check, we are in big trouble if this message pops up!
667 */ 680 */
668 if (mp_irqs[idx].mpc_dstirq != pin) 681 if (mp_irqs[idx].mp_dstirq != pin)
669 printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n"); 682 printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n");
670 683
671 if (test_bit(bus, mp_bus_not_pci)) { 684 if (test_bit(bus, mp_bus_not_pci)) {
672 irq = mp_irqs[idx].mpc_srcbusirq; 685 irq = mp_irqs[idx].mp_srcbusirq;
673 } else { 686 } else {
674 /* 687 /*
675 * PCI IRQs are mapped in order 688 * PCI IRQs are mapped in order
@@ -730,7 +743,7 @@ static int __assign_irq_vector(int irq, cpumask_t mask)
730 offset = current_offset; 743 offset = current_offset;
731next: 744next:
732 vector += 8; 745 vector += 8;
733 if (vector >= FIRST_SYSTEM_VECTOR) { 746 if (vector >= first_system_vector) {
734 /* If we run out of vectors on large boxen, must share them. */ 747 /* If we run out of vectors on large boxen, must share them. */
735 offset = (offset + 1) % 8; 748 offset = (offset + 1) % 8;
736 vector = FIRST_DEVICE_VECTOR + offset; 749 vector = FIRST_DEVICE_VECTOR + offset;
@@ -788,7 +801,7 @@ static void __clear_irq_vector(int irq)
788 cpus_clear(cfg->domain); 801 cpus_clear(cfg->domain);
789} 802}
790 803
791void __setup_vector_irq(int cpu) 804static void __setup_vector_irq(int cpu)
792{ 805{
793 /* Initialize vector_irq on a new cpu */ 806 /* Initialize vector_irq on a new cpu */
794 /* This function must be called with vector_lock held */ 807 /* This function must be called with vector_lock held */
@@ -811,6 +824,13 @@ void __setup_vector_irq(int cpu)
811 } 824 }
812} 825}
813 826
827void setup_vector_irq(int cpu)
828{
829 spin_lock(&vector_lock);
830 __setup_vector_irq(smp_processor_id());
831 spin_unlock(&vector_lock);
832}
833
814 834
815static struct irq_chip ioapic_chip; 835static struct irq_chip ioapic_chip;
816 836
@@ -846,7 +866,7 @@ static void setup_IO_APIC_irq(int apic, int pin, unsigned int irq,
846 apic_printk(APIC_VERBOSE,KERN_DEBUG 866 apic_printk(APIC_VERBOSE,KERN_DEBUG
847 "IOAPIC[%d]: Set routing entry (%d-%d -> 0x%x -> " 867 "IOAPIC[%d]: Set routing entry (%d-%d -> 0x%x -> "
848 "IRQ %d Mode:%i Active:%i)\n", 868 "IRQ %d Mode:%i Active:%i)\n",
849 apic, mp_ioapics[apic].mpc_apicid, pin, cfg->vector, 869 apic, mp_ioapics[apic].mp_apicid, pin, cfg->vector,
850 irq, trigger, polarity); 870 irq, trigger, polarity);
851 871
852 /* 872 /*
@@ -887,10 +907,10 @@ static void __init setup_IO_APIC_irqs(void)
887 idx = find_irq_entry(apic,pin,mp_INT); 907 idx = find_irq_entry(apic,pin,mp_INT);
888 if (idx == -1) { 908 if (idx == -1) {
889 if (first_notcon) { 909 if (first_notcon) {
890 apic_printk(APIC_VERBOSE, KERN_DEBUG " IO-APIC (apicid-pin) %d-%d", mp_ioapics[apic].mpc_apicid, pin); 910 apic_printk(APIC_VERBOSE, KERN_DEBUG " IO-APIC (apicid-pin) %d-%d", mp_ioapics[apic].mp_apicid, pin);
891 first_notcon = 0; 911 first_notcon = 0;
892 } else 912 } else
893 apic_printk(APIC_VERBOSE, ", %d-%d", mp_ioapics[apic].mpc_apicid, pin); 913 apic_printk(APIC_VERBOSE, ", %d-%d", mp_ioapics[apic].mp_apicid, pin);
894 continue; 914 continue;
895 } 915 }
896 if (!first_notcon) { 916 if (!first_notcon) {
@@ -911,26 +931,21 @@ static void __init setup_IO_APIC_irqs(void)
911} 931}
912 932
913/* 933/*
914 * Set up the 8259A-master output pin as broadcast to all 934 * Set up the timer pin, possibly with the 8259A-master behind.
915 * CPUs.
916 */ 935 */
917static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, int vector) 936static void __init setup_timer_IRQ0_pin(unsigned int apic, unsigned int pin,
937 int vector)
918{ 938{
919 struct IO_APIC_route_entry entry; 939 struct IO_APIC_route_entry entry;
920 940
921 memset(&entry, 0, sizeof(entry)); 941 memset(&entry, 0, sizeof(entry));
922 942
923 disable_8259A_irq(0);
924
925 /* mask LVT0 */
926 apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
927
928 /* 943 /*
929 * We use logical delivery to get the timer IRQ 944 * We use logical delivery to get the timer IRQ
930 * to the first CPU. 945 * to the first CPU.
931 */ 946 */
932 entry.dest_mode = INT_DEST_MODE; 947 entry.dest_mode = INT_DEST_MODE;
933 entry.mask = 0; /* unmask IRQ now */ 948 entry.mask = 1; /* mask IRQ now */
934 entry.dest = cpu_mask_to_apicid(TARGET_CPUS); 949 entry.dest = cpu_mask_to_apicid(TARGET_CPUS);
935 entry.delivery_mode = INT_DELIVERY_MODE; 950 entry.delivery_mode = INT_DELIVERY_MODE;
936 entry.polarity = 0; 951 entry.polarity = 0;
@@ -939,7 +954,7 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
939 954
940 /* 955 /*
941 * The timer IRQ doesn't have to know that behind the 956 * The timer IRQ doesn't have to know that behind the
942 * scene we have a 8259A-master in AEOI mode ... 957 * scene we may have a 8259A-master in AEOI mode ...
943 */ 958 */
944 set_irq_chip_and_handler_name(0, &ioapic_chip, handle_edge_irq, "edge"); 959 set_irq_chip_and_handler_name(0, &ioapic_chip, handle_edge_irq, "edge");
945 960
@@ -947,8 +962,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
947 * Add it to the IO-APIC irq-routing table: 962 * Add it to the IO-APIC irq-routing table:
948 */ 963 */
949 ioapic_write_entry(apic, pin, entry); 964 ioapic_write_entry(apic, pin, entry);
950
951 enable_8259A_irq(0);
952} 965}
953 966
954void __apicdebuginit print_IO_APIC(void) 967void __apicdebuginit print_IO_APIC(void)
@@ -965,7 +978,7 @@ void __apicdebuginit print_IO_APIC(void)
965 printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries); 978 printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries);
966 for (i = 0; i < nr_ioapics; i++) 979 for (i = 0; i < nr_ioapics; i++)
967 printk(KERN_DEBUG "number of IO-APIC #%d registers: %d.\n", 980 printk(KERN_DEBUG "number of IO-APIC #%d registers: %d.\n",
968 mp_ioapics[i].mpc_apicid, nr_ioapic_registers[i]); 981 mp_ioapics[i].mp_apicid, nr_ioapic_registers[i]);
969 982
970 /* 983 /*
971 * We are a bit conservative about what we expect. We have to 984 * We are a bit conservative about what we expect. We have to
@@ -983,7 +996,7 @@ void __apicdebuginit print_IO_APIC(void)
983 spin_unlock_irqrestore(&ioapic_lock, flags); 996 spin_unlock_irqrestore(&ioapic_lock, flags);
984 997
985 printk("\n"); 998 printk("\n");
986 printk(KERN_DEBUG "IO APIC #%d......\n", mp_ioapics[apic].mpc_apicid); 999 printk(KERN_DEBUG "IO APIC #%d......\n", mp_ioapics[apic].mp_apicid);
987 printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw); 1000 printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw);
988 printk(KERN_DEBUG "....... : physical APIC id: %02X\n", reg_00.bits.ID); 1001 printk(KERN_DEBUG "....... : physical APIC id: %02X\n", reg_00.bits.ID);
989 1002
@@ -1077,6 +1090,7 @@ void __apicdebuginit print_local_APIC(void * dummy)
1077 1090
1078 printk("\n" KERN_DEBUG "printing local APIC contents on CPU#%d/%d:\n", 1091 printk("\n" KERN_DEBUG "printing local APIC contents on CPU#%d/%d:\n",
1079 smp_processor_id(), hard_smp_processor_id()); 1092 smp_processor_id(), hard_smp_processor_id());
1093 v = apic_read(APIC_ID);
1080 printk(KERN_INFO "... APIC ID: %08x (%01x)\n", v, GET_APIC_ID(read_apic_id())); 1094 printk(KERN_INFO "... APIC ID: %08x (%01x)\n", v, GET_APIC_ID(read_apic_id()));
1081 v = apic_read(APIC_LVR); 1095 v = apic_read(APIC_LVR);
1082 printk(KERN_INFO "... APIC VERSION: %08x\n", v); 1096 printk(KERN_INFO "... APIC VERSION: %08x\n", v);
@@ -1146,7 +1160,7 @@ void __apicdebuginit print_local_APIC(void * dummy)
1146 1160
1147void print_all_local_APICs (void) 1161void print_all_local_APICs (void)
1148{ 1162{
1149 on_each_cpu(print_local_APIC, NULL, 1, 1); 1163 on_each_cpu(print_local_APIC, NULL, 1);
1150} 1164}
1151 1165
1152void __apicdebuginit print_PIC(void) 1166void __apicdebuginit print_PIC(void)
@@ -1540,7 +1554,7 @@ static inline void init_IO_APIC_traps(void)
1540 } 1554 }
1541} 1555}
1542 1556
1543static void enable_lapic_irq (unsigned int irq) 1557static void unmask_lapic_irq(unsigned int irq)
1544{ 1558{
1545 unsigned long v; 1559 unsigned long v;
1546 1560
@@ -1548,7 +1562,7 @@ static void enable_lapic_irq (unsigned int irq)
1548 apic_write(APIC_LVT0, v & ~APIC_LVT_MASKED); 1562 apic_write(APIC_LVT0, v & ~APIC_LVT_MASKED);
1549} 1563}
1550 1564
1551static void disable_lapic_irq (unsigned int irq) 1565static void mask_lapic_irq(unsigned int irq)
1552{ 1566{
1553 unsigned long v; 1567 unsigned long v;
1554 1568
@@ -1561,19 +1575,20 @@ static void ack_lapic_irq (unsigned int irq)
1561 ack_APIC_irq(); 1575 ack_APIC_irq();
1562} 1576}
1563 1577
1564static void end_lapic_irq (unsigned int i) { /* nothing */ } 1578static struct irq_chip lapic_chip __read_mostly = {
1565 1579 .name = "local-APIC",
1566static struct hw_interrupt_type lapic_irq_type __read_mostly = { 1580 .mask = mask_lapic_irq,
1567 .name = "local-APIC", 1581 .unmask = unmask_lapic_irq,
1568 .typename = "local-APIC-edge", 1582 .ack = ack_lapic_irq,
1569 .startup = NULL, /* startup_irq() not used for IRQ0 */
1570 .shutdown = NULL, /* shutdown_irq() not used for IRQ0 */
1571 .enable = enable_lapic_irq,
1572 .disable = disable_lapic_irq,
1573 .ack = ack_lapic_irq,
1574 .end = end_lapic_irq,
1575}; 1583};
1576 1584
1585static void lapic_register_intr(int irq)
1586{
1587 irq_desc[irq].status &= ~IRQ_LEVEL;
1588 set_irq_chip_and_handler_name(irq, &lapic_chip, handle_edge_irq,
1589 "edge");
1590}
1591
1577static void __init setup_nmi(void) 1592static void __init setup_nmi(void)
1578{ 1593{
1579 /* 1594 /*
@@ -1659,6 +1674,7 @@ static inline void __init check_timer(void)
1659 struct irq_cfg *cfg = irq_cfg + 0; 1674 struct irq_cfg *cfg = irq_cfg + 0;
1660 int apic1, pin1, apic2, pin2; 1675 int apic1, pin1, apic2, pin2;
1661 unsigned long flags; 1676 unsigned long flags;
1677 int no_pin1 = 0;
1662 1678
1663 local_irq_save(flags); 1679 local_irq_save(flags);
1664 1680
@@ -1669,16 +1685,11 @@ static inline void __init check_timer(void)
1669 assign_irq_vector(0, TARGET_CPUS); 1685 assign_irq_vector(0, TARGET_CPUS);
1670 1686
1671 /* 1687 /*
1672 * Subtle, code in do_timer_interrupt() expects an AEOI 1688 * As IRQ0 is to be enabled in the 8259A, the virtual
1673 * mode for the 8259A whenever interrupts are routed 1689 * wire has to be disabled in the local APIC.
1674 * through I/O APICs. Also IRQ0 has to be enabled in
1675 * the 8259A which implies the virtual wire has to be
1676 * disabled in the local APIC.
1677 */ 1690 */
1678 apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT); 1691 apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
1679 init_8259A(1); 1692 init_8259A(1);
1680 if (timer_over_8254 > 0)
1681 enable_8259A_irq(0);
1682 1693
1683 pin1 = find_isa_irq_pin(0, mp_INT); 1694 pin1 = find_isa_irq_pin(0, mp_INT);
1684 apic1 = find_isa_irq_apic(0, mp_INT); 1695 apic1 = find_isa_irq_apic(0, mp_INT);
@@ -1688,15 +1699,33 @@ static inline void __init check_timer(void)
1688 apic_printk(APIC_VERBOSE,KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n", 1699 apic_printk(APIC_VERBOSE,KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n",
1689 cfg->vector, apic1, pin1, apic2, pin2); 1700 cfg->vector, apic1, pin1, apic2, pin2);
1690 1701
1702 /*
1703 * Some BIOS writers are clueless and report the ExtINTA
1704 * I/O APIC input from the cascaded 8259A as the timer
1705 * interrupt input. So just in case, if only one pin
1706 * was found above, try it both directly and through the
1707 * 8259A.
1708 */
1709 if (pin1 == -1) {
1710 pin1 = pin2;
1711 apic1 = apic2;
1712 no_pin1 = 1;
1713 } else if (pin2 == -1) {
1714 pin2 = pin1;
1715 apic2 = apic1;
1716 }
1717
1691 if (pin1 != -1) { 1718 if (pin1 != -1) {
1692 /* 1719 /*
1693 * Ok, does IRQ0 through the IOAPIC work? 1720 * Ok, does IRQ0 through the IOAPIC work?
1694 */ 1721 */
1722 if (no_pin1) {
1723 add_pin_to_irq(0, apic1, pin1);
1724 setup_timer_IRQ0_pin(apic1, pin1, cfg->vector);
1725 }
1695 unmask_IO_APIC_irq(0); 1726 unmask_IO_APIC_irq(0);
1696 if (!no_timer_check && timer_irq_works()) { 1727 if (!no_timer_check && timer_irq_works()) {
1697 nmi_watchdog_default();
1698 if (nmi_watchdog == NMI_IO_APIC) { 1728 if (nmi_watchdog == NMI_IO_APIC) {
1699 disable_8259A_irq(0);
1700 setup_nmi(); 1729 setup_nmi();
1701 enable_8259A_irq(0); 1730 enable_8259A_irq(0);
1702 } 1731 }
@@ -1705,43 +1734,48 @@ static inline void __init check_timer(void)
1705 goto out; 1734 goto out;
1706 } 1735 }
1707 clear_IO_APIC_pin(apic1, pin1); 1736 clear_IO_APIC_pin(apic1, pin1);
1708 apic_printk(APIC_QUIET,KERN_ERR "..MP-BIOS bug: 8254 timer not " 1737 if (!no_pin1)
1709 "connected to IO-APIC\n"); 1738 apic_printk(APIC_QUIET,KERN_ERR "..MP-BIOS bug: "
1710 } 1739 "8254 timer not connected to IO-APIC\n");
1711 1740
1712 apic_printk(APIC_VERBOSE,KERN_INFO "...trying to set up timer (IRQ0) " 1741 apic_printk(APIC_VERBOSE,KERN_INFO
1713 "through the 8259A ... "); 1742 "...trying to set up timer (IRQ0) "
1714 if (pin2 != -1) { 1743 "through the 8259A ... ");
1715 apic_printk(APIC_VERBOSE,"\n..... (found apic %d pin %d) ...", 1744 apic_printk(APIC_VERBOSE,"\n..... (found apic %d pin %d) ...",
1716 apic2, pin2); 1745 apic2, pin2);
1717 /* 1746 /*
1718 * legacy devices should be connected to IO APIC #0 1747 * legacy devices should be connected to IO APIC #0
1719 */ 1748 */
1720 setup_ExtINT_IRQ0_pin(apic2, pin2, cfg->vector); 1749 replace_pin_at_irq(0, apic1, pin1, apic2, pin2);
1750 setup_timer_IRQ0_pin(apic2, pin2, cfg->vector);
1751 unmask_IO_APIC_irq(0);
1752 enable_8259A_irq(0);
1721 if (timer_irq_works()) { 1753 if (timer_irq_works()) {
1722 apic_printk(APIC_VERBOSE," works.\n"); 1754 apic_printk(APIC_VERBOSE," works.\n");
1723 nmi_watchdog_default(); 1755 timer_through_8259 = 1;
1724 if (nmi_watchdog == NMI_IO_APIC) { 1756 if (nmi_watchdog == NMI_IO_APIC) {
1757 disable_8259A_irq(0);
1725 setup_nmi(); 1758 setup_nmi();
1759 enable_8259A_irq(0);
1726 } 1760 }
1727 goto out; 1761 goto out;
1728 } 1762 }
1729 /* 1763 /*
1730 * Cleanup, just in case ... 1764 * Cleanup, just in case ...
1731 */ 1765 */
1766 disable_8259A_irq(0);
1732 clear_IO_APIC_pin(apic2, pin2); 1767 clear_IO_APIC_pin(apic2, pin2);
1768 apic_printk(APIC_VERBOSE," failed.\n");
1733 } 1769 }
1734 apic_printk(APIC_VERBOSE," failed.\n");
1735 1770
1736 if (nmi_watchdog == NMI_IO_APIC) { 1771 if (nmi_watchdog == NMI_IO_APIC) {
1737 printk(KERN_WARNING "timer doesn't work through the IO-APIC - disabling NMI Watchdog!\n"); 1772 printk(KERN_WARNING "timer doesn't work through the IO-APIC - disabling NMI Watchdog!\n");
1738 nmi_watchdog = 0; 1773 nmi_watchdog = NMI_NONE;
1739 } 1774 }
1740 1775
1741 apic_printk(APIC_VERBOSE, KERN_INFO "...trying to set up timer as Virtual Wire IRQ..."); 1776 apic_printk(APIC_VERBOSE, KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
1742 1777
1743 disable_8259A_irq(0); 1778 lapic_register_intr(0);
1744 irq_desc[0].chip = &lapic_irq_type;
1745 apic_write(APIC_LVT0, APIC_DM_FIXED | cfg->vector); /* Fixed mode */ 1779 apic_write(APIC_LVT0, APIC_DM_FIXED | cfg->vector); /* Fixed mode */
1746 enable_8259A_irq(0); 1780 enable_8259A_irq(0);
1747 1781
@@ -1749,6 +1783,7 @@ static inline void __init check_timer(void)
1749 apic_printk(APIC_VERBOSE," works.\n"); 1783 apic_printk(APIC_VERBOSE," works.\n");
1750 goto out; 1784 goto out;
1751 } 1785 }
1786 disable_8259A_irq(0);
1752 apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | cfg->vector); 1787 apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | cfg->vector);
1753 apic_printk(APIC_VERBOSE," failed.\n"); 1788 apic_printk(APIC_VERBOSE," failed.\n");
1754 1789
@@ -1778,11 +1813,21 @@ static int __init notimercheck(char *s)
1778__setup("no_timer_check", notimercheck); 1813__setup("no_timer_check", notimercheck);
1779 1814
1780/* 1815/*
1781 * 1816 * Traditionally ISA IRQ2 is the cascade IRQ, and is not available
1782 * IRQs that are handled by the PIC in the MPS IOAPIC case. 1817 * to devices. However there may be an I/O APIC pin available for
1783 * - IRQ2 is the cascade IRQ, and cannot be a io-apic IRQ. 1818 * this interrupt regardless. The pin may be left unconnected, but
1784 * Linux doesn't really care, as it's not actually used 1819 * typically it will be reused as an ExtINT cascade interrupt for
1785 * for any interrupt handling anyway. 1820 * the master 8259A. In the MPS case such a pin will normally be
1821 * reported as an ExtINT interrupt in the MP table. With ACPI
1822 * there is no provision for ExtINT interrupts, and in the absence
1823 * of an override it would be treated as an ordinary ISA I/O APIC
1824 * interrupt, that is edge-triggered and unmasked by default. We
1825 * used to do this, but it caused problems on some systems because
1826 * of the NMI watchdog and sometimes IRQ0 of the 8254 timer using
1827 * the same ExtINT cascade interrupt to drive the local APIC of the
1828 * bootstrap processor. Therefore we refrain from routing IRQ2 to
1829 * the I/O APIC in all cases now. No actual device should request
1830 * it anyway. --macro
1786 */ 1831 */
1787#define PIC_IRQS (1<<2) 1832#define PIC_IRQS (1<<2)
1788 1833
@@ -1793,10 +1838,7 @@ void __init setup_IO_APIC(void)
1793 * calling enable_IO_APIC() is moved to setup_local_APIC for BP 1838 * calling enable_IO_APIC() is moved to setup_local_APIC for BP
1794 */ 1839 */
1795 1840
1796 if (acpi_ioapic) 1841 io_apic_irqs = ~PIC_IRQS;
1797 io_apic_irqs = ~0; /* all IRQs go through IOAPIC */
1798 else
1799 io_apic_irqs = ~PIC_IRQS;
1800 1842
1801 apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n"); 1843 apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n");
1802 1844
@@ -1841,8 +1883,8 @@ static int ioapic_resume(struct sys_device *dev)
1841 1883
1842 spin_lock_irqsave(&ioapic_lock, flags); 1884 spin_lock_irqsave(&ioapic_lock, flags);
1843 reg_00.raw = io_apic_read(dev->id, 0); 1885 reg_00.raw = io_apic_read(dev->id, 0);
1844 if (reg_00.bits.ID != mp_ioapics[dev->id].mpc_apicid) { 1886 if (reg_00.bits.ID != mp_ioapics[dev->id].mp_apicid) {
1845 reg_00.bits.ID = mp_ioapics[dev->id].mpc_apicid; 1887 reg_00.bits.ID = mp_ioapics[dev->id].mp_apicid;
1846 io_apic_write(dev->id, 0, reg_00.raw); 1888 io_apic_write(dev->id, 0, reg_00.raw);
1847 } 1889 }
1848 spin_unlock_irqrestore(&ioapic_lock, flags); 1890 spin_unlock_irqrestore(&ioapic_lock, flags);
@@ -2242,8 +2284,8 @@ int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
2242 return -1; 2284 return -1;
2243 2285
2244 for (i = 0; i < mp_irq_entries; i++) 2286 for (i = 0; i < mp_irq_entries; i++)
2245 if (mp_irqs[i].mpc_irqtype == mp_INT && 2287 if (mp_irqs[i].mp_irqtype == mp_INT &&
2246 mp_irqs[i].mpc_srcbusirq == bus_irq) 2288 mp_irqs[i].mp_srcbusirq == bus_irq)
2247 break; 2289 break;
2248 if (i >= mp_irq_entries) 2290 if (i >= mp_irq_entries)
2249 return -1; 2291 return -1;
@@ -2336,7 +2378,7 @@ void __init ioapic_init_mappings(void)
2336 ioapic_res = ioapic_setup_resources(); 2378 ioapic_res = ioapic_setup_resources();
2337 for (i = 0; i < nr_ioapics; i++) { 2379 for (i = 0; i < nr_ioapics; i++) {
2338 if (smp_found_config) { 2380 if (smp_found_config) {
2339 ioapic_phys = mp_ioapics[i].mpc_apicaddr; 2381 ioapic_phys = mp_ioapics[i].mp_apicaddr;
2340 } else { 2382 } else {
2341 ioapic_phys = (unsigned long) 2383 ioapic_phys = (unsigned long)
2342 alloc_bootmem_pages(PAGE_SIZE); 2384 alloc_bootmem_pages(PAGE_SIZE);
diff --git a/arch/x86/kernel/ipi.c b/arch/x86/kernel/ipi.c
index c0df7b89ca23..9d98cda39ad9 100644
--- a/arch/x86/kernel/ipi.c
+++ b/arch/x86/kernel/ipi.c
@@ -8,7 +8,6 @@
8#include <linux/kernel_stat.h> 8#include <linux/kernel_stat.h>
9#include <linux/mc146818rtc.h> 9#include <linux/mc146818rtc.h>
10#include <linux/cache.h> 10#include <linux/cache.h>
11#include <linux/interrupt.h>
12#include <linux/cpu.h> 11#include <linux/cpu.h>
13#include <linux/module.h> 12#include <linux/module.h>
14 13
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 147352df28b9..47a6f6f12478 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -48,6 +48,29 @@ void ack_bad_irq(unsigned int irq)
48#endif 48#endif
49} 49}
50 50
51#ifdef CONFIG_DEBUG_STACKOVERFLOW
52/* Debugging check for stack overflow: is there less than 1KB free? */
53static int check_stack_overflow(void)
54{
55 long sp;
56
57 __asm__ __volatile__("andl %%esp,%0" :
58 "=r" (sp) : "0" (THREAD_SIZE - 1));
59
60 return sp < (sizeof(struct thread_info) + STACK_WARN);
61}
62
63static void print_stack_overflow(void)
64{
65 printk(KERN_WARNING "low stack detected by irq handler\n");
66 dump_stack();
67}
68
69#else
70static inline int check_stack_overflow(void) { return 0; }
71static inline void print_stack_overflow(void) { }
72#endif
73
51#ifdef CONFIG_4KSTACKS 74#ifdef CONFIG_4KSTACKS
52/* 75/*
53 * per-CPU IRQ handling contexts (thread information and stack) 76 * per-CPU IRQ handling contexts (thread information and stack)
@@ -59,48 +82,29 @@ union irq_ctx {
59 82
60static union irq_ctx *hardirq_ctx[NR_CPUS] __read_mostly; 83static union irq_ctx *hardirq_ctx[NR_CPUS] __read_mostly;
61static union irq_ctx *softirq_ctx[NR_CPUS] __read_mostly; 84static union irq_ctx *softirq_ctx[NR_CPUS] __read_mostly;
62#endif
63 85
64/* 86static char softirq_stack[NR_CPUS * THREAD_SIZE]
65 * do_IRQ handles all normal device IRQ's (the special 87 __attribute__((__section__(".bss.page_aligned")));
66 * SMP cross-CPU interrupts have their own specific
67 * handlers).
68 */
69unsigned int do_IRQ(struct pt_regs *regs)
70{
71 struct pt_regs *old_regs;
72 /* high bit used in ret_from_ code */
73 int irq = ~regs->orig_ax;
74 struct irq_desc *desc = irq_desc + irq;
75#ifdef CONFIG_4KSTACKS
76 union irq_ctx *curctx, *irqctx;
77 u32 *isp;
78#endif
79 88
80 if (unlikely((unsigned)irq >= NR_IRQS)) { 89static char hardirq_stack[NR_CPUS * THREAD_SIZE]
81 printk(KERN_EMERG "%s: cannot handle IRQ %d\n", 90 __attribute__((__section__(".bss.page_aligned")));
82 __func__, irq);
83 BUG();
84 }
85 91
86 old_regs = set_irq_regs(regs); 92static void call_on_stack(void *func, void *stack)
87 irq_enter(); 93{
88#ifdef CONFIG_DEBUG_STACKOVERFLOW 94 asm volatile("xchgl %%ebx,%%esp \n"
89 /* Debugging check for stack overflow: is there less than 1KB free? */ 95 "call *%%edi \n"
90 { 96 "movl %%ebx,%%esp \n"
91 long sp; 97 : "=b" (stack)
92 98 : "0" (stack),
93 __asm__ __volatile__("andl %%esp,%0" : 99 "D"(func)
94 "=r" (sp) : "0" (THREAD_SIZE - 1)); 100 : "memory", "cc", "edx", "ecx", "eax");
95 if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { 101}
96 printk("do_IRQ: stack overflow: %ld\n",
97 sp - sizeof(struct thread_info));
98 dump_stack();
99 }
100 }
101#endif
102 102
103#ifdef CONFIG_4KSTACKS 103static inline int
104execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
105{
106 union irq_ctx *curctx, *irqctx;
107 u32 *isp, arg1, arg2;
104 108
105 curctx = (union irq_ctx *) current_thread_info(); 109 curctx = (union irq_ctx *) current_thread_info();
106 irqctx = hardirq_ctx[smp_processor_id()]; 110 irqctx = hardirq_ctx[smp_processor_id()];
@@ -111,52 +115,39 @@ unsigned int do_IRQ(struct pt_regs *regs)
111 * handler) we can't do that and just have to keep using the 115 * handler) we can't do that and just have to keep using the
112 * current stack (which is the irq stack already after all) 116 * current stack (which is the irq stack already after all)
113 */ 117 */
114 if (curctx != irqctx) { 118 if (unlikely(curctx == irqctx))
115 int arg1, arg2, bx; 119 return 0;
116
117 /* build the stack frame on the IRQ stack */
118 isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
119 irqctx->tinfo.task = curctx->tinfo.task;
120 irqctx->tinfo.previous_esp = current_stack_pointer;
121 120
122 /* 121 /* build the stack frame on the IRQ stack */
123 * Copy the softirq bits in preempt_count so that the 122 isp = (u32 *) ((char*)irqctx + sizeof(*irqctx));
124 * softirq checks work in the hardirq context. 123 irqctx->tinfo.task = curctx->tinfo.task;
125 */ 124 irqctx->tinfo.previous_esp = current_stack_pointer;
126 irqctx->tinfo.preempt_count =
127 (irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK) |
128 (curctx->tinfo.preempt_count & SOFTIRQ_MASK);
129
130 asm volatile(
131 " xchgl %%ebx,%%esp \n"
132 " call *%%edi \n"
133 " movl %%ebx,%%esp \n"
134 : "=a" (arg1), "=d" (arg2), "=b" (bx)
135 : "0" (irq), "1" (desc), "2" (isp),
136 "D" (desc->handle_irq)
137 : "memory", "cc", "ecx"
138 );
139 } else
140#endif
141 desc->handle_irq(irq, desc);
142 125
143 irq_exit(); 126 /*
144 set_irq_regs(old_regs); 127 * Copy the softirq bits in preempt_count so that the
128 * softirq checks work in the hardirq context.
129 */
130 irqctx->tinfo.preempt_count =
131 (irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK) |
132 (curctx->tinfo.preempt_count & SOFTIRQ_MASK);
133
134 if (unlikely(overflow))
135 call_on_stack(print_stack_overflow, isp);
136
137 asm volatile("xchgl %%ebx,%%esp \n"
138 "call *%%edi \n"
139 "movl %%ebx,%%esp \n"
140 : "=a" (arg1), "=d" (arg2), "=b" (isp)
141 : "0" (irq), "1" (desc), "2" (isp),
142 "D" (desc->handle_irq)
143 : "memory", "cc", "ecx");
145 return 1; 144 return 1;
146} 145}
147 146
148#ifdef CONFIG_4KSTACKS
149
150static char softirq_stack[NR_CPUS * THREAD_SIZE]
151 __attribute__((__section__(".bss.page_aligned")));
152
153static char hardirq_stack[NR_CPUS * THREAD_SIZE]
154 __attribute__((__section__(".bss.page_aligned")));
155
156/* 147/*
157 * allocate per-cpu stacks for hardirq and for softirq processing 148 * allocate per-cpu stacks for hardirq and for softirq processing
158 */ 149 */
159void irq_ctx_init(int cpu) 150void __cpuinit irq_ctx_init(int cpu)
160{ 151{
161 union irq_ctx *irqctx; 152 union irq_ctx *irqctx;
162 153
@@ -164,25 +155,25 @@ void irq_ctx_init(int cpu)
164 return; 155 return;
165 156
166 irqctx = (union irq_ctx*) &hardirq_stack[cpu*THREAD_SIZE]; 157 irqctx = (union irq_ctx*) &hardirq_stack[cpu*THREAD_SIZE];
167 irqctx->tinfo.task = NULL; 158 irqctx->tinfo.task = NULL;
168 irqctx->tinfo.exec_domain = NULL; 159 irqctx->tinfo.exec_domain = NULL;
169 irqctx->tinfo.cpu = cpu; 160 irqctx->tinfo.cpu = cpu;
170 irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; 161 irqctx->tinfo.preempt_count = HARDIRQ_OFFSET;
171 irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); 162 irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);
172 163
173 hardirq_ctx[cpu] = irqctx; 164 hardirq_ctx[cpu] = irqctx;
174 165
175 irqctx = (union irq_ctx*) &softirq_stack[cpu*THREAD_SIZE]; 166 irqctx = (union irq_ctx*) &softirq_stack[cpu*THREAD_SIZE];
176 irqctx->tinfo.task = NULL; 167 irqctx->tinfo.task = NULL;
177 irqctx->tinfo.exec_domain = NULL; 168 irqctx->tinfo.exec_domain = NULL;
178 irqctx->tinfo.cpu = cpu; 169 irqctx->tinfo.cpu = cpu;
179 irqctx->tinfo.preempt_count = 0; 170 irqctx->tinfo.preempt_count = 0;
180 irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); 171 irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);
181 172
182 softirq_ctx[cpu] = irqctx; 173 softirq_ctx[cpu] = irqctx;
183 174
184 printk("CPU %u irqstacks, hard=%p soft=%p\n", 175 printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
185 cpu,hardirq_ctx[cpu],softirq_ctx[cpu]); 176 cpu,hardirq_ctx[cpu],softirq_ctx[cpu]);
186} 177}
187 178
188void irq_ctx_exit(int cpu) 179void irq_ctx_exit(int cpu)
@@ -211,25 +202,56 @@ asmlinkage void do_softirq(void)
211 /* build the stack frame on the softirq stack */ 202 /* build the stack frame on the softirq stack */
212 isp = (u32*) ((char*)irqctx + sizeof(*irqctx)); 203 isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
213 204
214 asm volatile( 205 call_on_stack(__do_softirq, isp);
215 " xchgl %%ebx,%%esp \n"
216 " call __do_softirq \n"
217 " movl %%ebx,%%esp \n"
218 : "=b"(isp)
219 : "0"(isp)
220 : "memory", "cc", "edx", "ecx", "eax"
221 );
222 /* 206 /*
223 * Shouldnt happen, we returned above if in_interrupt(): 207 * Shouldnt happen, we returned above if in_interrupt():
224 */ 208 */
225 WARN_ON_ONCE(softirq_count()); 209 WARN_ON_ONCE(softirq_count());
226 } 210 }
227 211
228 local_irq_restore(flags); 212 local_irq_restore(flags);
229} 213}
214
215#else
216static inline int
217execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) { return 0; }
230#endif 218#endif
231 219
232/* 220/*
221 * do_IRQ handles all normal device IRQ's (the special
222 * SMP cross-CPU interrupts have their own specific
223 * handlers).
224 */
225unsigned int do_IRQ(struct pt_regs *regs)
226{
227 struct pt_regs *old_regs;
228 /* high bit used in ret_from_ code */
229 int overflow, irq = ~regs->orig_ax;
230 struct irq_desc *desc = irq_desc + irq;
231
232 if (unlikely((unsigned)irq >= NR_IRQS)) {
233 printk(KERN_EMERG "%s: cannot handle IRQ %d\n",
234 __func__, irq);
235 BUG();
236 }
237
238 old_regs = set_irq_regs(regs);
239 irq_enter();
240
241 overflow = check_stack_overflow();
242
243 if (!execute_on_irq_stack(overflow, desc, irq)) {
244 if (unlikely(overflow))
245 print_stack_overflow();
246 desc->handle_irq(irq, desc);
247 }
248
249 irq_exit();
250 set_irq_regs(old_regs);
251 return 1;
252}
253
254/*
233 * Interrupt statistics: 255 * Interrupt statistics:
234 */ 256 */
235 257
@@ -313,16 +335,20 @@ skip:
313 per_cpu(irq_stat,j).irq_tlb_count); 335 per_cpu(irq_stat,j).irq_tlb_count);
314 seq_printf(p, " TLB shootdowns\n"); 336 seq_printf(p, " TLB shootdowns\n");
315#endif 337#endif
338#ifdef CONFIG_X86_MCE
316 seq_printf(p, "TRM: "); 339 seq_printf(p, "TRM: ");
317 for_each_online_cpu(j) 340 for_each_online_cpu(j)
318 seq_printf(p, "%10u ", 341 seq_printf(p, "%10u ",
319 per_cpu(irq_stat,j).irq_thermal_count); 342 per_cpu(irq_stat,j).irq_thermal_count);
320 seq_printf(p, " Thermal event interrupts\n"); 343 seq_printf(p, " Thermal event interrupts\n");
344#endif
345#ifdef CONFIG_X86_LOCAL_APIC
321 seq_printf(p, "SPU: "); 346 seq_printf(p, "SPU: ");
322 for_each_online_cpu(j) 347 for_each_online_cpu(j)
323 seq_printf(p, "%10u ", 348 seq_printf(p, "%10u ",
324 per_cpu(irq_stat,j).irq_spurious_count); 349 per_cpu(irq_stat,j).irq_spurious_count);
325 seq_printf(p, " Spurious interrupts\n"); 350 seq_printf(p, " Spurious interrupts\n");
351#endif
326 seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); 352 seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
327#if defined(CONFIG_X86_IO_APIC) 353#if defined(CONFIG_X86_IO_APIC)
328 seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count)); 354 seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count));
@@ -331,6 +357,40 @@ skip:
331 return 0; 357 return 0;
332} 358}
333 359
360/*
361 * /proc/stat helpers
362 */
363u64 arch_irq_stat_cpu(unsigned int cpu)
364{
365 u64 sum = nmi_count(cpu);
366
367#ifdef CONFIG_X86_LOCAL_APIC
368 sum += per_cpu(irq_stat, cpu).apic_timer_irqs;
369#endif
370#ifdef CONFIG_SMP
371 sum += per_cpu(irq_stat, cpu).irq_resched_count;
372 sum += per_cpu(irq_stat, cpu).irq_call_count;
373 sum += per_cpu(irq_stat, cpu).irq_tlb_count;
374#endif
375#ifdef CONFIG_X86_MCE
376 sum += per_cpu(irq_stat, cpu).irq_thermal_count;
377#endif
378#ifdef CONFIG_X86_LOCAL_APIC
379 sum += per_cpu(irq_stat, cpu).irq_spurious_count;
380#endif
381 return sum;
382}
383
384u64 arch_irq_stat(void)
385{
386 u64 sum = atomic_read(&irq_err_count);
387
388#ifdef CONFIG_X86_IO_APIC
389 sum += atomic_read(&irq_mis_count);
390#endif
391 return sum;
392}
393
334#ifdef CONFIG_HOTPLUG_CPU 394#ifdef CONFIG_HOTPLUG_CPU
335#include <mach_apic.h> 395#include <mach_apic.h>
336 396
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 3aac15466a91..1f78b238d8d2 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -135,6 +135,7 @@ skip:
135 seq_printf(p, "%10u ", cpu_pda(j)->irq_tlb_count); 135 seq_printf(p, "%10u ", cpu_pda(j)->irq_tlb_count);
136 seq_printf(p, " TLB shootdowns\n"); 136 seq_printf(p, " TLB shootdowns\n");
137#endif 137#endif
138#ifdef CONFIG_X86_MCE
138 seq_printf(p, "TRM: "); 139 seq_printf(p, "TRM: ");
139 for_each_online_cpu(j) 140 for_each_online_cpu(j)
140 seq_printf(p, "%10u ", cpu_pda(j)->irq_thermal_count); 141 seq_printf(p, "%10u ", cpu_pda(j)->irq_thermal_count);
@@ -143,6 +144,7 @@ skip:
143 for_each_online_cpu(j) 144 for_each_online_cpu(j)
144 seq_printf(p, "%10u ", cpu_pda(j)->irq_threshold_count); 145 seq_printf(p, "%10u ", cpu_pda(j)->irq_threshold_count);
145 seq_printf(p, " Threshold APIC interrupts\n"); 146 seq_printf(p, " Threshold APIC interrupts\n");
147#endif
146 seq_printf(p, "SPU: "); 148 seq_printf(p, "SPU: ");
147 for_each_online_cpu(j) 149 for_each_online_cpu(j)
148 seq_printf(p, "%10u ", cpu_pda(j)->irq_spurious_count); 150 seq_printf(p, "%10u ", cpu_pda(j)->irq_spurious_count);
@@ -153,6 +155,32 @@ skip:
153} 155}
154 156
155/* 157/*
158 * /proc/stat helpers
159 */
160u64 arch_irq_stat_cpu(unsigned int cpu)
161{
162 u64 sum = cpu_pda(cpu)->__nmi_count;
163
164 sum += cpu_pda(cpu)->apic_timer_irqs;
165#ifdef CONFIG_SMP
166 sum += cpu_pda(cpu)->irq_resched_count;
167 sum += cpu_pda(cpu)->irq_call_count;
168 sum += cpu_pda(cpu)->irq_tlb_count;
169#endif
170#ifdef CONFIG_X86_MCE
171 sum += cpu_pda(cpu)->irq_thermal_count;
172 sum += cpu_pda(cpu)->irq_threshold_count;
173#endif
174 sum += cpu_pda(cpu)->irq_spurious_count;
175 return sum;
176}
177
178u64 arch_irq_stat(void)
179{
180 return atomic_read(&irq_err_count);
181}
182
183/*
156 * do_IRQ handles all normal device IRQ's (the special 184 * do_IRQ handles all normal device IRQ's (the special
157 * SMP cross-CPU interrupts have their own specific 185 * SMP cross-CPU interrupts have their own specific
158 * handlers). 186 * handlers).
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c
new file mode 100644
index 000000000000..d66914287ee1
--- /dev/null
+++ b/arch/x86/kernel/irqinit_32.c
@@ -0,0 +1,114 @@
1#include <linux/errno.h>
2#include <linux/signal.h>
3#include <linux/sched.h>
4#include <linux/ioport.h>
5#include <linux/interrupt.h>
6#include <linux/slab.h>
7#include <linux/random.h>
8#include <linux/init.h>
9#include <linux/kernel_stat.h>
10#include <linux/sysdev.h>
11#include <linux/bitops.h>
12
13#include <asm/atomic.h>
14#include <asm/system.h>
15#include <asm/io.h>
16#include <asm/timer.h>
17#include <asm/pgtable.h>
18#include <asm/delay.h>
19#include <asm/desc.h>
20#include <asm/apic.h>
21#include <asm/arch_hooks.h>
22#include <asm/i8259.h>
23
24
25
26/*
27 * Note that on a 486, we don't want to do a SIGFPE on an irq13
28 * as the irq is unreliable, and exception 16 works correctly
29 * (ie as explained in the intel literature). On a 386, you
30 * can't use exception 16 due to bad IBM design, so we have to
31 * rely on the less exact irq13.
32 *
33 * Careful.. Not only is IRQ13 unreliable, but it is also
34 * leads to races. IBM designers who came up with it should
35 * be shot.
36 */
37
38
39static irqreturn_t math_error_irq(int cpl, void *dev_id)
40{
41 extern void math_error(void __user *);
42 outb(0,0xF0);
43 if (ignore_fpu_irq || !boot_cpu_data.hard_math)
44 return IRQ_NONE;
45 math_error((void __user *)get_irq_regs()->ip);
46 return IRQ_HANDLED;
47}
48
49/*
50 * New motherboards sometimes make IRQ 13 be a PCI interrupt,
51 * so allow interrupt sharing.
52 */
53static struct irqaction fpu_irq = {
54 .handler = math_error_irq,
55 .mask = CPU_MASK_NONE,
56 .name = "fpu",
57};
58
59void __init init_ISA_irqs (void)
60{
61 int i;
62
63#ifdef CONFIG_X86_LOCAL_APIC
64 init_bsp_APIC();
65#endif
66 init_8259A(0);
67
68 /*
69 * 16 old-style INTA-cycle interrupts:
70 */
71 for (i = 0; i < 16; i++) {
72 set_irq_chip_and_handler_name(i, &i8259A_chip,
73 handle_level_irq, "XT");
74 }
75}
76
77/* Overridden in paravirt.c */
78void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
79
80void __init native_init_IRQ(void)
81{
82 int i;
83
84 /* all the set up before the call gates are initialised */
85 pre_intr_init_hook();
86
87 /*
88 * Cover the whole vector space, no vector can escape
89 * us. (some of these will be overridden and become
90 * 'special' SMP interrupts)
91 */
92 for (i = 0; i < (NR_VECTORS - FIRST_EXTERNAL_VECTOR); i++) {
93 int vector = FIRST_EXTERNAL_VECTOR + i;
94 if (i >= NR_IRQS)
95 break;
96 /* SYSCALL_VECTOR was reserved in trap_init. */
97 if (!test_bit(vector, used_vectors))
98 set_intr_gate(vector, interrupt[i]);
99 }
100
101 /* setup after call gates are initialised (usually add in
102 * the architecture specific gates)
103 */
104 intr_init_hook();
105
106 /*
107 * External FPU? Set up irq13 if so, for
108 * original braindamaged IBM FERR coupling.
109 */
110 if (boot_cpu_data.hard_math && !cpu_has_fpu)
111 setup_irq(FPU_IRQ, &fpu_irq);
112
113 irq_ctx_init(smp_processor_id());
114}
diff --git a/arch/x86/kernel/irqinit_64.c b/arch/x86/kernel/irqinit_64.c
new file mode 100644
index 000000000000..0373e88de95a
--- /dev/null
+++ b/arch/x86/kernel/irqinit_64.c
@@ -0,0 +1,221 @@
1#include <linux/linkage.h>
2#include <linux/errno.h>
3#include <linux/signal.h>
4#include <linux/sched.h>
5#include <linux/ioport.h>
6#include <linux/interrupt.h>
7#include <linux/timex.h>
8#include <linux/slab.h>
9#include <linux/random.h>
10#include <linux/init.h>
11#include <linux/kernel_stat.h>
12#include <linux/sysdev.h>
13#include <linux/bitops.h>
14
15#include <asm/acpi.h>
16#include <asm/atomic.h>
17#include <asm/system.h>
18#include <asm/io.h>
19#include <asm/hw_irq.h>
20#include <asm/pgtable.h>
21#include <asm/delay.h>
22#include <asm/desc.h>
23#include <asm/apic.h>
24#include <asm/i8259.h>
25
26/*
27 * Common place to define all x86 IRQ vectors
28 *
29 * This builds up the IRQ handler stubs using some ugly macros in irq.h
30 *
31 * These macros create the low-level assembly IRQ routines that save
32 * register context and call do_IRQ(). do_IRQ() then does all the
33 * operations that are needed to keep the AT (or SMP IOAPIC)
34 * interrupt-controller happy.
35 */
36
37#define IRQ_NAME2(nr) nr##_interrupt(void)
38#define IRQ_NAME(nr) IRQ_NAME2(IRQ##nr)
39
40/*
41 * SMP has a few special interrupts for IPI messages
42 */
43
44#define BUILD_IRQ(nr) \
45 asmlinkage void IRQ_NAME(nr); \
46 asm("\n.p2align\n" \
47 "IRQ" #nr "_interrupt:\n\t" \
48 "push $~(" #nr ") ; " \
49 "jmp common_interrupt");
50
51#define BI(x,y) \
52 BUILD_IRQ(x##y)
53
54#define BUILD_16_IRQS(x) \
55 BI(x,0) BI(x,1) BI(x,2) BI(x,3) \
56 BI(x,4) BI(x,5) BI(x,6) BI(x,7) \
57 BI(x,8) BI(x,9) BI(x,a) BI(x,b) \
58 BI(x,c) BI(x,d) BI(x,e) BI(x,f)
59
60/*
61 * ISA PIC or low IO-APIC triggered (INTA-cycle or APIC) interrupts:
62 * (these are usually mapped to vectors 0x30-0x3f)
63 */
64
65/*
66 * The IO-APIC gives us many more interrupt sources. Most of these
67 * are unused but an SMP system is supposed to have enough memory ...
68 * sometimes (mostly wrt. hw bugs) we get corrupted vectors all
69 * across the spectrum, so we really want to be prepared to get all
70 * of these. Plus, more powerful systems might have more than 64
71 * IO-APIC registers.
72 *
73 * (these are usually mapped into the 0x30-0xff vector range)
74 */
75 BUILD_16_IRQS(0x2) BUILD_16_IRQS(0x3)
76BUILD_16_IRQS(0x4) BUILD_16_IRQS(0x5) BUILD_16_IRQS(0x6) BUILD_16_IRQS(0x7)
77BUILD_16_IRQS(0x8) BUILD_16_IRQS(0x9) BUILD_16_IRQS(0xa) BUILD_16_IRQS(0xb)
78BUILD_16_IRQS(0xc) BUILD_16_IRQS(0xd) BUILD_16_IRQS(0xe) BUILD_16_IRQS(0xf)
79
80#undef BUILD_16_IRQS
81#undef BI
82
83
84#define IRQ(x,y) \
85 IRQ##x##y##_interrupt
86
87#define IRQLIST_16(x) \
88 IRQ(x,0), IRQ(x,1), IRQ(x,2), IRQ(x,3), \
89 IRQ(x,4), IRQ(x,5), IRQ(x,6), IRQ(x,7), \
90 IRQ(x,8), IRQ(x,9), IRQ(x,a), IRQ(x,b), \
91 IRQ(x,c), IRQ(x,d), IRQ(x,e), IRQ(x,f)
92
93/* for the irq vectors */
94static void (*__initdata interrupt[NR_VECTORS - FIRST_EXTERNAL_VECTOR])(void) = {
95 IRQLIST_16(0x2), IRQLIST_16(0x3),
96 IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7),
97 IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb),
98 IRQLIST_16(0xc), IRQLIST_16(0xd), IRQLIST_16(0xe), IRQLIST_16(0xf)
99};
100
101#undef IRQ
102#undef IRQLIST_16
103
104
105
106
107/*
108 * IRQ2 is cascade interrupt to second interrupt controller
109 */
110
111static struct irqaction irq2 = {
112 .handler = no_action,
113 .mask = CPU_MASK_NONE,
114 .name = "cascade",
115};
116DEFINE_PER_CPU(vector_irq_t, vector_irq) = {
117 [0 ... IRQ0_VECTOR - 1] = -1,
118 [IRQ0_VECTOR] = 0,
119 [IRQ1_VECTOR] = 1,
120 [IRQ2_VECTOR] = 2,
121 [IRQ3_VECTOR] = 3,
122 [IRQ4_VECTOR] = 4,
123 [IRQ5_VECTOR] = 5,
124 [IRQ6_VECTOR] = 6,
125 [IRQ7_VECTOR] = 7,
126 [IRQ8_VECTOR] = 8,
127 [IRQ9_VECTOR] = 9,
128 [IRQ10_VECTOR] = 10,
129 [IRQ11_VECTOR] = 11,
130 [IRQ12_VECTOR] = 12,
131 [IRQ13_VECTOR] = 13,
132 [IRQ14_VECTOR] = 14,
133 [IRQ15_VECTOR] = 15,
134 [IRQ15_VECTOR + 1 ... NR_VECTORS - 1] = -1
135};
136
137static void __init init_ISA_irqs (void)
138{
139 int i;
140
141 init_bsp_APIC();
142 init_8259A(0);
143
144 for (i = 0; i < NR_IRQS; i++) {
145 irq_desc[i].status = IRQ_DISABLED;
146 irq_desc[i].action = NULL;
147 irq_desc[i].depth = 1;
148
149 if (i < 16) {
150 /*
151 * 16 old-style INTA-cycle interrupts:
152 */
153 set_irq_chip_and_handler_name(i, &i8259A_chip,
154 handle_level_irq, "XT");
155 } else {
156 /*
157 * 'high' PCI IRQs filled in on demand
158 */
159 irq_desc[i].chip = &no_irq_chip;
160 }
161 }
162}
163
164void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
165
166void __init native_init_IRQ(void)
167{
168 int i;
169
170 init_ISA_irqs();
171 /*
172 * Cover the whole vector space, no vector can escape
173 * us. (some of these will be overridden and become
174 * 'special' SMP interrupts)
175 */
176 for (i = 0; i < (NR_VECTORS - FIRST_EXTERNAL_VECTOR); i++) {
177 int vector = FIRST_EXTERNAL_VECTOR + i;
178 if (vector != IA32_SYSCALL_VECTOR)
179 set_intr_gate(vector, interrupt[i]);
180 }
181
182#ifdef CONFIG_SMP
183 /*
184 * The reschedule interrupt is a CPU-to-CPU reschedule-helper
185 * IPI, driven by wakeup.
186 */
187 alloc_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt);
188
189 /* IPIs for invalidation */
190 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+0, invalidate_interrupt0);
191 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+1, invalidate_interrupt1);
192 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+2, invalidate_interrupt2);
193 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+3, invalidate_interrupt3);
194 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+4, invalidate_interrupt4);
195 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+5, invalidate_interrupt5);
196 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+6, invalidate_interrupt6);
197 alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+7, invalidate_interrupt7);
198
199 /* IPI for generic function call */
200 alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
201
202 /* IPI for generic single function call */
203 alloc_intr_gate(CALL_FUNCTION_SINGLE_VECTOR,
204 call_function_single_interrupt);
205
206 /* Low priority IPI to cleanup after moving an irq */
207 set_intr_gate(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt);
208#endif
209 alloc_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
210 alloc_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
211
212 /* self generated IPI for local APIC timer */
213 alloc_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
214
215 /* IPI vectors for APIC spurious and error interrupts */
216 alloc_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
217 alloc_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
218
219 if (!acpi_ioapic)
220 setup_irq(2, &irq2);
221}
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 08a30986d472..87edf1ceb1df 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -18,6 +18,7 @@
18 18
19#include <linux/clocksource.h> 19#include <linux/clocksource.h>
20#include <linux/kvm_para.h> 20#include <linux/kvm_para.h>
21#include <asm/pvclock.h>
21#include <asm/arch_hooks.h> 22#include <asm/arch_hooks.h>
22#include <asm/msr.h> 23#include <asm/msr.h>
23#include <asm/apic.h> 24#include <asm/apic.h>
@@ -36,18 +37,9 @@ static int parse_no_kvmclock(char *arg)
36early_param("no-kvmclock", parse_no_kvmclock); 37early_param("no-kvmclock", parse_no_kvmclock);
37 38
38/* The hypervisor will put information about time periodically here */ 39/* The hypervisor will put information about time periodically here */
39static DEFINE_PER_CPU_SHARED_ALIGNED(struct kvm_vcpu_time_info, hv_clock); 40static DEFINE_PER_CPU_SHARED_ALIGNED(struct pvclock_vcpu_time_info, hv_clock);
40#define get_clock(cpu, field) per_cpu(hv_clock, cpu).field 41static struct pvclock_wall_clock wall_clock;
41 42
42static inline u64 kvm_get_delta(u64 last_tsc)
43{
44 int cpu = smp_processor_id();
45 u64 delta = native_read_tsc() - last_tsc;
46 return (delta * get_clock(cpu, tsc_to_system_mul)) >> KVM_SCALE;
47}
48
49static struct kvm_wall_clock wall_clock;
50static cycle_t kvm_clock_read(void);
51/* 43/*
52 * The wallclock is the time of day when we booted. Since then, some time may 44 * The wallclock is the time of day when we booted. Since then, some time may
53 * have elapsed since the hypervisor wrote the data. So we try to account for 45 * have elapsed since the hypervisor wrote the data. So we try to account for
@@ -55,64 +47,37 @@ static cycle_t kvm_clock_read(void);
55 */ 47 */
56static unsigned long kvm_get_wallclock(void) 48static unsigned long kvm_get_wallclock(void)
57{ 49{
58 u32 wc_sec, wc_nsec; 50 struct pvclock_vcpu_time_info *vcpu_time;
59 u64 delta;
60 struct timespec ts; 51 struct timespec ts;
61 int version, nsec;
62 int low, high; 52 int low, high;
63 53
64 low = (int)__pa(&wall_clock); 54 low = (int)__pa(&wall_clock);
65 high = ((u64)__pa(&wall_clock) >> 32); 55 high = ((u64)__pa(&wall_clock) >> 32);
56 native_write_msr(MSR_KVM_WALL_CLOCK, low, high);
66 57
67 delta = kvm_clock_read(); 58 vcpu_time = &get_cpu_var(hv_clock);
59 pvclock_read_wallclock(&wall_clock, vcpu_time, &ts);
60 put_cpu_var(hv_clock);
68 61
69 native_write_msr(MSR_KVM_WALL_CLOCK, low, high); 62 return ts.tv_sec;
70 do {
71 version = wall_clock.wc_version;
72 rmb();
73 wc_sec = wall_clock.wc_sec;
74 wc_nsec = wall_clock.wc_nsec;
75 rmb();
76 } while ((wall_clock.wc_version != version) || (version & 1));
77
78 delta = kvm_clock_read() - delta;
79 delta += wc_nsec;
80 nsec = do_div(delta, NSEC_PER_SEC);
81 set_normalized_timespec(&ts, wc_sec + delta, nsec);
82 /*
83 * Of all mechanisms of time adjustment I've tested, this one
84 * was the champion!
85 */
86 return ts.tv_sec + 1;
87} 63}
88 64
89static int kvm_set_wallclock(unsigned long now) 65static int kvm_set_wallclock(unsigned long now)
90{ 66{
91 return 0; 67 return -1;
92} 68}
93 69
94/*
95 * This is our read_clock function. The host puts an tsc timestamp each time
96 * it updates a new time. Without the tsc adjustment, we can have a situation
97 * in which a vcpu starts to run earlier (smaller system_time), but probes
98 * time later (compared to another vcpu), leading to backwards time
99 */
100static cycle_t kvm_clock_read(void) 70static cycle_t kvm_clock_read(void)
101{ 71{
102 u64 last_tsc, now; 72 struct pvclock_vcpu_time_info *src;
103 int cpu; 73 cycle_t ret;
104 74
105 preempt_disable(); 75 src = &get_cpu_var(hv_clock);
106 cpu = smp_processor_id(); 76 ret = pvclock_clocksource_read(src);
107 77 put_cpu_var(hv_clock);
108 last_tsc = get_clock(cpu, tsc_timestamp); 78 return ret;
109 now = get_clock(cpu, system_time);
110
111 now += kvm_get_delta(last_tsc);
112 preempt_enable();
113
114 return now;
115} 79}
80
116static struct clocksource kvm_clock = { 81static struct clocksource kvm_clock = {
117 .name = "kvm-clock", 82 .name = "kvm-clock",
118 .read = kvm_clock_read, 83 .read = kvm_clock_read,
@@ -123,13 +88,14 @@ static struct clocksource kvm_clock = {
123 .flags = CLOCK_SOURCE_IS_CONTINUOUS, 88 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
124}; 89};
125 90
126static int kvm_register_clock(void) 91static int kvm_register_clock(char *txt)
127{ 92{
128 int cpu = smp_processor_id(); 93 int cpu = smp_processor_id();
129 int low, high; 94 int low, high;
130 low = (int)__pa(&per_cpu(hv_clock, cpu)) | 1; 95 low = (int)__pa(&per_cpu(hv_clock, cpu)) | 1;
131 high = ((u64)__pa(&per_cpu(hv_clock, cpu)) >> 32); 96 high = ((u64)__pa(&per_cpu(hv_clock, cpu)) >> 32);
132 97 printk(KERN_INFO "kvm-clock: cpu %d, msr %x:%x, %s\n",
98 cpu, high, low, txt);
133 return native_write_msr_safe(MSR_KVM_SYSTEM_TIME, low, high); 99 return native_write_msr_safe(MSR_KVM_SYSTEM_TIME, low, high);
134} 100}
135 101
@@ -140,12 +106,20 @@ static void kvm_setup_secondary_clock(void)
140 * Now that the first cpu already had this clocksource initialized, 106 * Now that the first cpu already had this clocksource initialized,
141 * we shouldn't fail. 107 * we shouldn't fail.
142 */ 108 */
143 WARN_ON(kvm_register_clock()); 109 WARN_ON(kvm_register_clock("secondary cpu clock"));
144 /* ok, done with our trickery, call native */ 110 /* ok, done with our trickery, call native */
145 setup_secondary_APIC_clock(); 111 setup_secondary_APIC_clock();
146} 112}
147#endif 113#endif
148 114
115#ifdef CONFIG_SMP
116void __init kvm_smp_prepare_boot_cpu(void)
117{
118 WARN_ON(kvm_register_clock("primary cpu clock"));
119 native_smp_prepare_boot_cpu();
120}
121#endif
122
149/* 123/*
150 * After the clock is registered, the host will keep writing to the 124 * After the clock is registered, the host will keep writing to the
151 * registered memory location. If the guest happens to shutdown, this memory 125 * registered memory location. If the guest happens to shutdown, this memory
@@ -174,7 +148,7 @@ void __init kvmclock_init(void)
174 return; 148 return;
175 149
176 if (kvmclock && kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE)) { 150 if (kvmclock && kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE)) {
177 if (kvm_register_clock()) 151 if (kvm_register_clock("boot clock"))
178 return; 152 return;
179 pv_time_ops.get_wallclock = kvm_get_wallclock; 153 pv_time_ops.get_wallclock = kvm_get_wallclock;
180 pv_time_ops.set_wallclock = kvm_set_wallclock; 154 pv_time_ops.set_wallclock = kvm_set_wallclock;
@@ -182,6 +156,9 @@ void __init kvmclock_init(void)
182#ifdef CONFIG_X86_LOCAL_APIC 156#ifdef CONFIG_X86_LOCAL_APIC
183 pv_apic_ops.setup_secondary_clock = kvm_setup_secondary_clock; 157 pv_apic_ops.setup_secondary_clock = kvm_setup_secondary_clock;
184#endif 158#endif
159#ifdef CONFIG_SMP
160 smp_ops.smp_prepare_boot_cpu = kvm_smp_prepare_boot_cpu;
161#endif
185 machine_ops.shutdown = kvm_shutdown; 162 machine_ops.shutdown = kvm_shutdown;
186#ifdef CONFIG_KEXEC 163#ifdef CONFIG_KEXEC
187 machine_ops.crash_shutdown = kvm_crash_shutdown; 164 machine_ops.crash_shutdown = kvm_crash_shutdown;
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 0224c3637c73..a8449571858a 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -20,9 +20,9 @@
20#include <asm/mmu_context.h> 20#include <asm/mmu_context.h>
21 21
22#ifdef CONFIG_SMP 22#ifdef CONFIG_SMP
23static void flush_ldt(void *null) 23static void flush_ldt(void *current_mm)
24{ 24{
25 if (current->active_mm) 25 if (current->active_mm == current_mm)
26 load_LDT(&current->active_mm->context); 26 load_LDT(&current->active_mm->context);
27} 27}
28#endif 28#endif
@@ -68,7 +68,7 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
68 load_LDT(pc); 68 load_LDT(pc);
69 mask = cpumask_of_cpu(smp_processor_id()); 69 mask = cpumask_of_cpu(smp_processor_id());
70 if (!cpus_equal(current->mm->cpu_vm_mask, mask)) 70 if (!cpus_equal(current->mm->cpu_vm_mask, mask))
71 smp_call_function(flush_ldt, NULL, 1, 1); 71 smp_call_function(flush_ldt, current->mm, 1);
72 preempt_enable(); 72 preempt_enable();
73#else 73#else
74 load_LDT(pc); 74 load_LDT(pc);
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index d0b234c9fc31..8864230d55af 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -11,6 +11,8 @@
11#include <linux/delay.h> 11#include <linux/delay.h>
12#include <linux/init.h> 12#include <linux/init.h>
13#include <linux/numa.h> 13#include <linux/numa.h>
14#include <linux/ftrace.h>
15
14#include <asm/pgtable.h> 16#include <asm/pgtable.h>
15#include <asm/pgalloc.h> 17#include <asm/pgalloc.h>
16#include <asm/tlbflush.h> 18#include <asm/tlbflush.h>
@@ -39,7 +41,7 @@ static void set_idt(void *newidt, __u16 limit)
39 curidt.address = (unsigned long)newidt; 41 curidt.address = (unsigned long)newidt;
40 42
41 load_idt(&curidt); 43 load_idt(&curidt);
42}; 44}
43 45
44 46
45static void set_gdt(void *newgdt, __u16 limit) 47static void set_gdt(void *newgdt, __u16 limit)
@@ -51,7 +53,7 @@ static void set_gdt(void *newgdt, __u16 limit)
51 curgdt.address = (unsigned long)newgdt; 53 curgdt.address = (unsigned long)newgdt;
52 54
53 load_gdt(&curgdt); 55 load_gdt(&curgdt);
54}; 56}
55 57
56static void load_segments(void) 58static void load_segments(void)
57{ 59{
@@ -107,6 +109,8 @@ NORET_TYPE void machine_kexec(struct kimage *image)
107 unsigned long page_list[PAGES_NR]; 109 unsigned long page_list[PAGES_NR];
108 void *control_page; 110 void *control_page;
109 111
112 tracer_disable();
113
110 /* Interrupts aren't acceptable while we reboot */ 114 /* Interrupts aren't acceptable while we reboot */
111 local_irq_disable(); 115 local_irq_disable();
112 116
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 576a03db4511..9dd9262693a3 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -11,6 +11,8 @@
11#include <linux/string.h> 11#include <linux/string.h>
12#include <linux/reboot.h> 12#include <linux/reboot.h>
13#include <linux/numa.h> 13#include <linux/numa.h>
14#include <linux/ftrace.h>
15
14#include <asm/pgtable.h> 16#include <asm/pgtable.h>
15#include <asm/tlbflush.h> 17#include <asm/tlbflush.h>
16#include <asm/mmu_context.h> 18#include <asm/mmu_context.h>
@@ -110,7 +112,7 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable)
110{ 112{
111 pgd_t *level4p; 113 pgd_t *level4p;
112 level4p = (pgd_t *)__va(start_pgtable); 114 level4p = (pgd_t *)__va(start_pgtable);
113 return init_level4_page(image, level4p, 0, end_pfn << PAGE_SHIFT); 115 return init_level4_page(image, level4p, 0, max_pfn << PAGE_SHIFT);
114} 116}
115 117
116static void set_idt(void *newidt, u16 limit) 118static void set_idt(void *newidt, u16 limit)
@@ -184,6 +186,8 @@ NORET_TYPE void machine_kexec(struct kimage *image)
184 unsigned long page_list[PAGES_NR]; 186 unsigned long page_list[PAGES_NR];
185 void *control_page; 187 void *control_page;
186 188
189 tracer_disable();
190
187 /* Interrupts aren't acceptable while we reboot */ 191 /* Interrupts aren't acceptable while we reboot */
188 local_irq_disable(); 192 local_irq_disable();
189 193
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
index 3cad17fe026b..07c0f828f488 100644
--- a/arch/x86/kernel/mfgpt_32.c
+++ b/arch/x86/kernel/mfgpt_32.c
@@ -155,6 +155,7 @@ int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable)
155 wrmsr(msr, value, dummy); 155 wrmsr(msr, value, dummy);
156 return 0; 156 return 0;
157} 157}
158EXPORT_SYMBOL_GPL(geode_mfgpt_toggle_event);
158 159
159int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable) 160int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable)
160{ 161{
@@ -222,6 +223,7 @@ int geode_mfgpt_alloc_timer(int timer, int domain)
222 /* No timers available - too bad */ 223 /* No timers available - too bad */
223 return -1; 224 return -1;
224} 225}
226EXPORT_SYMBOL_GPL(geode_mfgpt_alloc_timer);
225 227
226 228
227#ifdef CONFIG_GEODE_MFGPT_TIMER 229#ifdef CONFIG_GEODE_MFGPT_TIMER
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 69729e38b78a..56b933119a04 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -5,13 +5,14 @@
5 * 2006 Shaohua Li <shaohua.li@intel.com> 5 * 2006 Shaohua Li <shaohua.li@intel.com>
6 * 6 *
7 * This driver allows to upgrade microcode on Intel processors 7 * This driver allows to upgrade microcode on Intel processors
8 * belonging to IA-32 family - PentiumPro, Pentium II, 8 * belonging to IA-32 family - PentiumPro, Pentium II,
9 * Pentium III, Xeon, Pentium 4, etc. 9 * Pentium III, Xeon, Pentium 4, etc.
10 * 10 *
11 * Reference: Section 8.10 of Volume III, Intel Pentium 4 Manual, 11 * Reference: Section 8.11 of Volume 3a, IA-32 Intel? Architecture
12 * Order Number 245472 or free download from: 12 * Software Developer's Manual
13 * 13 * Order Number 253668 or free download from:
14 * http://developer.intel.com/design/pentium4/manuals/245472.htm 14 *
15 * http://developer.intel.com/design/pentium4/manuals/253668.htm
15 * 16 *
16 * For more information, go to http://www.urbanmyth.org/microcode 17 * For more information, go to http://www.urbanmyth.org/microcode
17 * 18 *
@@ -58,12 +59,12 @@
58 * nature of implementation. 59 * nature of implementation.
59 * 1.11 22 Mar 2002 Tigran Aivazian <tigran@veritas.com> 60 * 1.11 22 Mar 2002 Tigran Aivazian <tigran@veritas.com>
60 * Fix the panic when writing zero-length microcode chunk. 61 * Fix the panic when writing zero-length microcode chunk.
61 * 1.12 29 Sep 2003 Nitin Kamble <nitin.a.kamble@intel.com>, 62 * 1.12 29 Sep 2003 Nitin Kamble <nitin.a.kamble@intel.com>,
62 * Jun Nakajima <jun.nakajima@intel.com> 63 * Jun Nakajima <jun.nakajima@intel.com>
63 * Support for the microcode updates in the new format. 64 * Support for the microcode updates in the new format.
64 * 1.13 10 Oct 2003 Tigran Aivazian <tigran@veritas.com> 65 * 1.13 10 Oct 2003 Tigran Aivazian <tigran@veritas.com>
65 * Removed ->read() method and obsoleted MICROCODE_IOCFREE ioctl 66 * Removed ->read() method and obsoleted MICROCODE_IOCFREE ioctl
66 * because we no longer hold a copy of applied microcode 67 * because we no longer hold a copy of applied microcode
67 * in kernel memory. 68 * in kernel memory.
68 * 1.14 25 Jun 2004 Tigran Aivazian <tigran@veritas.com> 69 * 1.14 25 Jun 2004 Tigran Aivazian <tigran@veritas.com>
69 * Fix sigmatch() macro to handle old CPUs with pf == 0. 70 * Fix sigmatch() macro to handle old CPUs with pf == 0.
@@ -75,6 +76,7 @@
75#include <linux/kernel.h> 76#include <linux/kernel.h>
76#include <linux/init.h> 77#include <linux/init.h>
77#include <linux/sched.h> 78#include <linux/sched.h>
79#include <linux/smp_lock.h>
78#include <linux/cpumask.h> 80#include <linux/cpumask.h>
79#include <linux/module.h> 81#include <linux/module.h>
80#include <linux/slab.h> 82#include <linux/slab.h>
@@ -320,11 +322,11 @@ static void apply_microcode(int cpu)
320 return; 322 return;
321 323
322 /* serialize access to the physical write to MSR 0x79 */ 324 /* serialize access to the physical write to MSR 0x79 */
323 spin_lock_irqsave(&microcode_update_lock, flags); 325 spin_lock_irqsave(&microcode_update_lock, flags);
324 326
325 /* write microcode via MSR 0x79 */ 327 /* write microcode via MSR 0x79 */
326 wrmsr(MSR_IA32_UCODE_WRITE, 328 wrmsr(MSR_IA32_UCODE_WRITE,
327 (unsigned long) uci->mc->bits, 329 (unsigned long) uci->mc->bits,
328 (unsigned long) uci->mc->bits >> 16 >> 16); 330 (unsigned long) uci->mc->bits >> 16 >> 16);
329 wrmsr(MSR_IA32_UCODE_REV, 0, 0); 331 wrmsr(MSR_IA32_UCODE_REV, 0, 0);
330 332
@@ -341,7 +343,7 @@ static void apply_microcode(int cpu)
341 return; 343 return;
342 } 344 }
343 printk(KERN_INFO "microcode: CPU%d updated from revision " 345 printk(KERN_INFO "microcode: CPU%d updated from revision "
344 "0x%x to 0x%x, date = %08x \n", 346 "0x%x to 0x%x, date = %08x \n",
345 cpu_num, uci->rev, val[1], uci->mc->hdr.date); 347 cpu_num, uci->rev, val[1], uci->mc->hdr.date);
346 uci->rev = val[1]; 348 uci->rev = val[1];
347} 349}
@@ -422,6 +424,7 @@ out:
422 424
423static int microcode_open (struct inode *unused1, struct file *unused2) 425static int microcode_open (struct inode *unused1, struct file *unused2)
424{ 426{
427 cycle_kernel_lock();
425 return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; 428 return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
426} 429}
427 430
@@ -488,7 +491,7 @@ MODULE_ALIAS_MISCDEV(MICROCODE_MINOR);
488#define microcode_dev_exit() do { } while(0) 491#define microcode_dev_exit() do { } while(0)
489#endif 492#endif
490 493
491static long get_next_ucode_from_buffer(void **mc, void *buf, 494static long get_next_ucode_from_buffer(void **mc, const u8 *buf,
492 unsigned long size, long offset) 495 unsigned long size, long offset)
493{ 496{
494 microcode_header_t *mc_header; 497 microcode_header_t *mc_header;
@@ -522,7 +525,7 @@ static int cpu_request_microcode(int cpu)
522 char name[30]; 525 char name[30];
523 struct cpuinfo_x86 *c = &cpu_data(cpu); 526 struct cpuinfo_x86 *c = &cpu_data(cpu);
524 const struct firmware *firmware; 527 const struct firmware *firmware;
525 void *buf; 528 const u8 *buf;
526 unsigned long size; 529 unsigned long size;
527 long offset = 0; 530 long offset = 0;
528 int error; 531 int error;
@@ -534,7 +537,7 @@ static int cpu_request_microcode(int cpu)
534 c->x86, c->x86_model, c->x86_mask); 537 c->x86, c->x86_model, c->x86_mask);
535 error = request_firmware(&firmware, name, &microcode_pdev->dev); 538 error = request_firmware(&firmware, name, &microcode_pdev->dev);
536 if (error) { 539 if (error) {
537 pr_debug("microcode: ucode data file %s load failed\n", name); 540 pr_debug("microcode: data file %s load failed\n", name);
538 return error; 541 return error;
539 } 542 }
540 buf = firmware->data; 543 buf = firmware->data;
@@ -805,6 +808,9 @@ static int __init microcode_init (void)
805{ 808{
806 int error; 809 int error;
807 810
811 printk(KERN_INFO
812 "IA-32 Microcode Update Driver: v" MICROCODE_VERSION " <tigran@aivazian.fsnet.co.uk>\n");
813
808 error = microcode_dev_init(); 814 error = microcode_dev_init();
809 if (error) 815 if (error)
810 return error; 816 return error;
@@ -825,9 +831,6 @@ static int __init microcode_init (void)
825 } 831 }
826 832
827 register_hotcpu_notifier(&mc_cpu_notifier); 833 register_hotcpu_notifier(&mc_cpu_notifier);
828
829 printk(KERN_INFO
830 "IA-32 Microcode Update Driver: v" MICROCODE_VERSION " <tigran@aivazian.fsnet.co.uk>\n");
831 return 0; 834 return 0;
832} 835}
833 836
diff --git a/arch/x86/kernel/mmconf-fam10h_64.c b/arch/x86/kernel/mmconf-fam10h_64.c
index edc5fbfe85c0..fdfdc550b366 100644
--- a/arch/x86/kernel/mmconf-fam10h_64.c
+++ b/arch/x86/kernel/mmconf-fam10h_64.c
@@ -12,6 +12,7 @@
12#include <asm/io.h> 12#include <asm/io.h>
13#include <asm/msr.h> 13#include <asm/msr.h>
14#include <asm/acpi.h> 14#include <asm/acpi.h>
15#include <asm/mmconfig.h>
15 16
16#include "../pci/pci.h" 17#include "../pci/pci.h"
17 18
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 404683b94e79..3b25e49380c6 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -25,6 +25,8 @@
25#include <asm/proto.h> 25#include <asm/proto.h>
26#include <asm/acpi.h> 26#include <asm/acpi.h>
27#include <asm/bios_ebda.h> 27#include <asm/bios_ebda.h>
28#include <asm/e820.h>
29#include <asm/trampoline.h>
28 30
29#include <mach_apic.h> 31#include <mach_apic.h>
30#ifdef CONFIG_X86_32 32#ifdef CONFIG_X86_32
@@ -32,28 +34,6 @@
32#include <mach_mpparse.h> 34#include <mach_mpparse.h>
33#endif 35#endif
34 36
35/* Have we found an MP table */
36int smp_found_config;
37
38/*
39 * Various Linux-internal data structures created from the
40 * MP-table.
41 */
42#if defined (CONFIG_MCA) || defined (CONFIG_EISA)
43int mp_bus_id_to_type[MAX_MP_BUSSES];
44#endif
45
46DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
47int mp_bus_id_to_pci_bus[MAX_MP_BUSSES] = {[0 ... MAX_MP_BUSSES - 1] = -1 };
48
49static int mp_current_pci_id;
50
51int pic_mode;
52
53/*
54 * Intel MP BIOS table parsing routines:
55 */
56
57/* 37/*
58 * Checksum an MP configuration block. 38 * Checksum an MP configuration block.
59 */ 39 */
@@ -69,15 +49,73 @@ static int __init mpf_checksum(unsigned char *mp, int len)
69} 49}
70 50
71#ifdef CONFIG_X86_NUMAQ 51#ifdef CONFIG_X86_NUMAQ
52int found_numaq;
72/* 53/*
73 * Have to match translation table entries to main table entries by counter 54 * Have to match translation table entries to main table entries by counter
74 * hence the mpc_record variable .... can't see a less disgusting way of 55 * hence the mpc_record variable .... can't see a less disgusting way of
75 * doing this .... 56 * doing this ....
76 */ 57 */
58struct mpc_config_translation {
59 unsigned char mpc_type;
60 unsigned char trans_len;
61 unsigned char trans_type;
62 unsigned char trans_quad;
63 unsigned char trans_global;
64 unsigned char trans_local;
65 unsigned short trans_reserved;
66};
67
77 68
78static int mpc_record; 69static int mpc_record;
79static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY] 70static struct mpc_config_translation *translation_table[MAX_MPC_ENTRY]
80 __cpuinitdata; 71 __cpuinitdata;
72
73static inline int generate_logical_apicid(int quad, int phys_apicid)
74{
75 return (quad << 4) + (phys_apicid ? phys_apicid << 1 : 1);
76}
77
78
79static inline int mpc_apic_id(struct mpc_config_processor *m,
80 struct mpc_config_translation *translation_record)
81{
82 int quad = translation_record->trans_quad;
83 int logical_apicid = generate_logical_apicid(quad, m->mpc_apicid);
84
85 printk(KERN_DEBUG "Processor #%d %u:%u APIC version %d (quad %d, apic %d)\n",
86 m->mpc_apicid,
87 (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
88 (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
89 m->mpc_apicver, quad, logical_apicid);
90 return logical_apicid;
91}
92
93int mp_bus_id_to_node[MAX_MP_BUSSES];
94
95int mp_bus_id_to_local[MAX_MP_BUSSES];
96
97static void mpc_oem_bus_info(struct mpc_config_bus *m, char *name,
98 struct mpc_config_translation *translation)
99{
100 int quad = translation->trans_quad;
101 int local = translation->trans_local;
102
103 mp_bus_id_to_node[m->mpc_busid] = quad;
104 mp_bus_id_to_local[m->mpc_busid] = local;
105 printk(KERN_INFO "Bus #%d is %s (node %d)\n",
106 m->mpc_busid, name, quad);
107}
108
109int quad_local_to_mp_bus_id [NR_CPUS/4][4];
110static void mpc_oem_pci_bus(struct mpc_config_bus *m,
111 struct mpc_config_translation *translation)
112{
113 int quad = translation->trans_quad;
114 int local = translation->trans_local;
115
116 quad_local_to_mp_bus_id[quad][local] = m->mpc_busid;
117}
118
81#endif 119#endif
82 120
83static void __cpuinit MP_processor_info(struct mpc_config_processor *m) 121static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
@@ -90,7 +128,10 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
90 return; 128 return;
91 } 129 }
92#ifdef CONFIG_X86_NUMAQ 130#ifdef CONFIG_X86_NUMAQ
93 apicid = mpc_apic_id(m, translation_table[mpc_record]); 131 if (found_numaq)
132 apicid = mpc_apic_id(m, translation_table[mpc_record]);
133 else
134 apicid = m->mpc_apicid;
94#else 135#else
95 apicid = m->mpc_apicid; 136 apicid = m->mpc_apicid;
96#endif 137#endif
@@ -103,17 +144,18 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
103 generic_processor_info(apicid, m->mpc_apicver); 144 generic_processor_info(apicid, m->mpc_apicver);
104} 145}
105 146
147#ifdef CONFIG_X86_IO_APIC
106static void __init MP_bus_info(struct mpc_config_bus *m) 148static void __init MP_bus_info(struct mpc_config_bus *m)
107{ 149{
108 char str[7]; 150 char str[7];
109
110 memcpy(str, m->mpc_bustype, 6); 151 memcpy(str, m->mpc_bustype, 6);
111 str[6] = 0; 152 str[6] = 0;
112 153
113#ifdef CONFIG_X86_NUMAQ 154#ifdef CONFIG_X86_NUMAQ
114 mpc_oem_bus_info(m, str, translation_table[mpc_record]); 155 if (found_numaq)
156 mpc_oem_bus_info(m, str, translation_table[mpc_record]);
115#else 157#else
116 Dprintk("Bus #%d is %s\n", m->mpc_busid, str); 158 printk(KERN_INFO "Bus #%d is %s\n", m->mpc_busid, str);
117#endif 159#endif
118 160
119#if MAX_MP_BUSSES < 256 161#if MAX_MP_BUSSES < 256
@@ -132,11 +174,10 @@ static void __init MP_bus_info(struct mpc_config_bus *m)
132#endif 174#endif
133 } else if (strncmp(str, BUSTYPE_PCI, sizeof(BUSTYPE_PCI) - 1) == 0) { 175 } else if (strncmp(str, BUSTYPE_PCI, sizeof(BUSTYPE_PCI) - 1) == 0) {
134#ifdef CONFIG_X86_NUMAQ 176#ifdef CONFIG_X86_NUMAQ
135 mpc_oem_pci_bus(m, translation_table[mpc_record]); 177 if (found_numaq)
178 mpc_oem_pci_bus(m, translation_table[mpc_record]);
136#endif 179#endif
137 clear_bit(m->mpc_busid, mp_bus_not_pci); 180 clear_bit(m->mpc_busid, mp_bus_not_pci);
138 mp_bus_id_to_pci_bus[m->mpc_busid] = mp_current_pci_id;
139 mp_current_pci_id++;
140#if defined(CONFIG_EISA) || defined (CONFIG_MCA) 181#if defined(CONFIG_EISA) || defined (CONFIG_MCA)
141 mp_bus_id_to_type[m->mpc_busid] = MP_BUS_PCI; 182 mp_bus_id_to_type[m->mpc_busid] = MP_BUS_PCI;
142 } else if (strncmp(str, BUSTYPE_EISA, sizeof(BUSTYPE_EISA) - 1) == 0) { 183 } else if (strncmp(str, BUSTYPE_EISA, sizeof(BUSTYPE_EISA) - 1) == 0) {
@@ -147,6 +188,7 @@ static void __init MP_bus_info(struct mpc_config_bus *m)
147 } else 188 } else
148 printk(KERN_WARNING "Unknown bustype %s - ignoring\n", str); 189 printk(KERN_WARNING "Unknown bustype %s - ignoring\n", str);
149} 190}
191#endif
150 192
151#ifdef CONFIG_X86_IO_APIC 193#ifdef CONFIG_X86_IO_APIC
152 194
@@ -176,18 +218,89 @@ static void __init MP_ioapic_info(struct mpc_config_ioapic *m)
176 if (bad_ioapic(m->mpc_apicaddr)) 218 if (bad_ioapic(m->mpc_apicaddr))
177 return; 219 return;
178 220
179 mp_ioapics[nr_ioapics] = *m; 221 mp_ioapics[nr_ioapics].mp_apicaddr = m->mpc_apicaddr;
222 mp_ioapics[nr_ioapics].mp_apicid = m->mpc_apicid;
223 mp_ioapics[nr_ioapics].mp_type = m->mpc_type;
224 mp_ioapics[nr_ioapics].mp_apicver = m->mpc_apicver;
225 mp_ioapics[nr_ioapics].mp_flags = m->mpc_flags;
180 nr_ioapics++; 226 nr_ioapics++;
181} 227}
182 228
183static void __init MP_intsrc_info(struct mpc_config_intsrc *m) 229static void print_MP_intsrc_info(struct mpc_config_intsrc *m)
184{ 230{
185 mp_irqs[mp_irq_entries] = *m; 231 printk(KERN_CONT "Int: type %d, pol %d, trig %d, bus %02x,"
186 Dprintk("Int: type %d, pol %d, trig %d, bus %d,"
187 " IRQ %02x, APIC ID %x, APIC INT %02x\n", 232 " IRQ %02x, APIC ID %x, APIC INT %02x\n",
188 m->mpc_irqtype, m->mpc_irqflag & 3, 233 m->mpc_irqtype, m->mpc_irqflag & 3,
189 (m->mpc_irqflag >> 2) & 3, m->mpc_srcbus, 234 (m->mpc_irqflag >> 2) & 3, m->mpc_srcbus,
190 m->mpc_srcbusirq, m->mpc_dstapic, m->mpc_dstirq); 235 m->mpc_srcbusirq, m->mpc_dstapic, m->mpc_dstirq);
236}
237
238static void __init print_mp_irq_info(struct mp_config_intsrc *mp_irq)
239{
240 printk(KERN_CONT "Int: type %d, pol %d, trig %d, bus %02x,"
241 " IRQ %02x, APIC ID %x, APIC INT %02x\n",
242 mp_irq->mp_irqtype, mp_irq->mp_irqflag & 3,
243 (mp_irq->mp_irqflag >> 2) & 3, mp_irq->mp_srcbus,
244 mp_irq->mp_srcbusirq, mp_irq->mp_dstapic, mp_irq->mp_dstirq);
245}
246
247static void __init assign_to_mp_irq(struct mpc_config_intsrc *m,
248 struct mp_config_intsrc *mp_irq)
249{
250 mp_irq->mp_dstapic = m->mpc_dstapic;
251 mp_irq->mp_type = m->mpc_type;
252 mp_irq->mp_irqtype = m->mpc_irqtype;
253 mp_irq->mp_irqflag = m->mpc_irqflag;
254 mp_irq->mp_srcbus = m->mpc_srcbus;
255 mp_irq->mp_srcbusirq = m->mpc_srcbusirq;
256 mp_irq->mp_dstirq = m->mpc_dstirq;
257}
258
259static void __init assign_to_mpc_intsrc(struct mp_config_intsrc *mp_irq,
260 struct mpc_config_intsrc *m)
261{
262 m->mpc_dstapic = mp_irq->mp_dstapic;
263 m->mpc_type = mp_irq->mp_type;
264 m->mpc_irqtype = mp_irq->mp_irqtype;
265 m->mpc_irqflag = mp_irq->mp_irqflag;
266 m->mpc_srcbus = mp_irq->mp_srcbus;
267 m->mpc_srcbusirq = mp_irq->mp_srcbusirq;
268 m->mpc_dstirq = mp_irq->mp_dstirq;
269}
270
271static int __init mp_irq_mpc_intsrc_cmp(struct mp_config_intsrc *mp_irq,
272 struct mpc_config_intsrc *m)
273{
274 if (mp_irq->mp_dstapic != m->mpc_dstapic)
275 return 1;
276 if (mp_irq->mp_type != m->mpc_type)
277 return 2;
278 if (mp_irq->mp_irqtype != m->mpc_irqtype)
279 return 3;
280 if (mp_irq->mp_irqflag != m->mpc_irqflag)
281 return 4;
282 if (mp_irq->mp_srcbus != m->mpc_srcbus)
283 return 5;
284 if (mp_irq->mp_srcbusirq != m->mpc_srcbusirq)
285 return 6;
286 if (mp_irq->mp_dstirq != m->mpc_dstirq)
287 return 7;
288
289 return 0;
290}
291
292static void __init MP_intsrc_info(struct mpc_config_intsrc *m)
293{
294 int i;
295
296 print_MP_intsrc_info(m);
297
298 for (i = 0; i < mp_irq_entries; i++) {
299 if (!mp_irq_mpc_intsrc_cmp(&mp_irqs[i], m))
300 return;
301 }
302
303 assign_to_mp_irq(m, &mp_irqs[mp_irq_entries]);
191 if (++mp_irq_entries == MAX_IRQ_SOURCES) 304 if (++mp_irq_entries == MAX_IRQ_SOURCES)
192 panic("Max # of irq sources exceeded!!\n"); 305 panic("Max # of irq sources exceeded!!\n");
193} 306}
@@ -196,7 +309,7 @@ static void __init MP_intsrc_info(struct mpc_config_intsrc *m)
196 309
197static void __init MP_lintsrc_info(struct mpc_config_lintsrc *m) 310static void __init MP_lintsrc_info(struct mpc_config_lintsrc *m)
198{ 311{
199 Dprintk("Lint: type %d, pol %d, trig %d, bus %d," 312 printk(KERN_INFO "Lint: type %d, pol %d, trig %d, bus %02x,"
200 " IRQ %02x, APIC ID %x, APIC LINT %02x\n", 313 " IRQ %02x, APIC ID %x, APIC LINT %02x\n",
201 m->mpc_irqtype, m->mpc_irqflag & 3, 314 m->mpc_irqtype, m->mpc_irqflag & 3,
202 (m->mpc_irqflag >> 2) & 3, m->mpc_srcbusid, 315 (m->mpc_irqflag >> 2) & 3, m->mpc_srcbusid,
@@ -266,11 +379,14 @@ static void __init smp_read_mpc_oem(struct mp_config_oemtable *oemtable,
266 } 379 }
267} 380}
268 381
269static inline void mps_oem_check(struct mp_config_table *mpc, char *oem, 382void numaq_mps_oem_check(struct mp_config_table *mpc, char *oem,
270 char *productid) 383 char *productid)
271{ 384{
272 if (strncmp(oem, "IBM NUMA", 8)) 385 if (strncmp(oem, "IBM NUMA", 8))
273 printk("Warning! May not be a NUMA-Q system!\n"); 386 printk("Warning! Not a NUMA-Q system!\n");
387 else
388 found_numaq = 1;
389
274 if (mpc->mpc_oemptr) 390 if (mpc->mpc_oemptr)
275 smp_read_mpc_oem((struct mp_config_oemtable *)mpc->mpc_oemptr, 391 smp_read_mpc_oem((struct mp_config_oemtable *)mpc->mpc_oemptr,
276 mpc->mpc_oemsize); 392 mpc->mpc_oemsize);
@@ -281,12 +397,9 @@ static inline void mps_oem_check(struct mp_config_table *mpc, char *oem,
281 * Read/parse the MPC 397 * Read/parse the MPC
282 */ 398 */
283 399
284static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early) 400static int __init smp_check_mpc(struct mp_config_table *mpc, char *oem,
401 char *str)
285{ 402{
286 char str[16];
287 char oem[10];
288 int count = sizeof(*mpc);
289 unsigned char *mpt = ((unsigned char *)mpc) + count;
290 403
291 if (memcmp(mpc->mpc_signature, MPC_SIGNATURE, 4)) { 404 if (memcmp(mpc->mpc_signature, MPC_SIGNATURE, 4)) {
292 printk(KERN_ERR "MPTABLE: bad signature [%c%c%c%c]!\n", 405 printk(KERN_ERR "MPTABLE: bad signature [%c%c%c%c]!\n",
@@ -309,19 +422,42 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early)
309 } 422 }
310 memcpy(oem, mpc->mpc_oem, 8); 423 memcpy(oem, mpc->mpc_oem, 8);
311 oem[8] = 0; 424 oem[8] = 0;
312 printk(KERN_INFO "MPTABLE: OEM ID: %s ", oem); 425 printk(KERN_INFO "MPTABLE: OEM ID: %s\n", oem);
313 426
314 memcpy(str, mpc->mpc_productid, 12); 427 memcpy(str, mpc->mpc_productid, 12);
315 str[12] = 0; 428 str[12] = 0;
316 printk("Product ID: %s ", str);
317 429
318#ifdef CONFIG_X86_32 430 printk(KERN_INFO "MPTABLE: Product ID: %s\n", str);
319 mps_oem_check(mpc, oem, str);
320#endif
321 printk(KERN_INFO "MPTABLE: Product ID: %s ", str);
322 431
323 printk(KERN_INFO "MPTABLE: APIC at: 0x%X\n", mpc->mpc_lapic); 432 printk(KERN_INFO "MPTABLE: APIC at: 0x%X\n", mpc->mpc_lapic);
324 433
434 return 1;
435}
436
437static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early)
438{
439 char str[16];
440 char oem[10];
441
442 int count = sizeof(*mpc);
443 unsigned char *mpt = ((unsigned char *)mpc) + count;
444
445 if (!smp_check_mpc(mpc, oem, str))
446 return 0;
447
448#ifdef CONFIG_X86_32
449 /*
450 * need to make sure summit and es7000's mps_oem_check is safe to be
451 * called early via genericarch 's mps_oem_check
452 */
453 if (early) {
454#ifdef CONFIG_X86_NUMAQ
455 numaq_mps_oem_check(mpc, oem, str);
456#endif
457 } else
458 mps_oem_check(mpc, oem, str);
459#endif
460
325 /* save the local APIC address, it might be non-default */ 461 /* save the local APIC address, it might be non-default */
326 if (!acpi_lapic) 462 if (!acpi_lapic)
327 mp_lapic_addr = mpc->mpc_lapic; 463 mp_lapic_addr = mpc->mpc_lapic;
@@ -352,7 +488,9 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early)
352 { 488 {
353 struct mpc_config_bus *m = 489 struct mpc_config_bus *m =
354 (struct mpc_config_bus *)mpt; 490 (struct mpc_config_bus *)mpt;
491#ifdef CONFIG_X86_IO_APIC
355 MP_bus_info(m); 492 MP_bus_info(m);
493#endif
356 mpt += sizeof(*m); 494 mpt += sizeof(*m);
357 count += sizeof(*m); 495 count += sizeof(*m);
358 break; 496 break;
@@ -402,6 +540,11 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early)
402 ++mpc_record; 540 ++mpc_record;
403#endif 541#endif
404 } 542 }
543
544#ifdef CONFIG_X86_GENERICARCH
545 generic_bigsmp_probe();
546#endif
547
405 setup_apic_routing(); 548 setup_apic_routing();
406 if (!num_processors) 549 if (!num_processors)
407 printk(KERN_ERR "MPTABLE: no processors registered!\n"); 550 printk(KERN_ERR "MPTABLE: no processors registered!\n");
@@ -427,7 +570,7 @@ static void __init construct_default_ioirq_mptable(int mpc_default_type)
427 intsrc.mpc_type = MP_INTSRC; 570 intsrc.mpc_type = MP_INTSRC;
428 intsrc.mpc_irqflag = 0; /* conforming */ 571 intsrc.mpc_irqflag = 0; /* conforming */
429 intsrc.mpc_srcbus = 0; 572 intsrc.mpc_srcbus = 0;
430 intsrc.mpc_dstapic = mp_ioapics[0].mpc_apicid; 573 intsrc.mpc_dstapic = mp_ioapics[0].mp_apicid;
431 574
432 intsrc.mpc_irqtype = mp_INT; 575 intsrc.mpc_irqtype = mp_INT;
433 576
@@ -488,40 +631,11 @@ static void __init construct_default_ioirq_mptable(int mpc_default_type)
488 MP_intsrc_info(&intsrc); 631 MP_intsrc_info(&intsrc);
489} 632}
490 633
491#endif
492 634
493static inline void __init construct_default_ISA_mptable(int mpc_default_type) 635static void construct_ioapic_table(int mpc_default_type)
494{ 636{
495 struct mpc_config_processor processor;
496 struct mpc_config_bus bus;
497#ifdef CONFIG_X86_IO_APIC
498 struct mpc_config_ioapic ioapic; 637 struct mpc_config_ioapic ioapic;
499#endif 638 struct mpc_config_bus bus;
500 struct mpc_config_lintsrc lintsrc;
501 int linttypes[2] = { mp_ExtINT, mp_NMI };
502 int i;
503
504 /*
505 * local APIC has default address
506 */
507 mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
508
509 /*
510 * 2 CPUs, numbered 0 & 1.
511 */
512 processor.mpc_type = MP_PROCESSOR;
513 /* Either an integrated APIC or a discrete 82489DX. */
514 processor.mpc_apicver = mpc_default_type > 4 ? 0x10 : 0x01;
515 processor.mpc_cpuflag = CPU_ENABLED;
516 processor.mpc_cpufeature = (boot_cpu_data.x86 << 8) |
517 (boot_cpu_data.x86_model << 4) | boot_cpu_data.x86_mask;
518 processor.mpc_featureflag = boot_cpu_data.x86_capability[0];
519 processor.mpc_reserved[0] = 0;
520 processor.mpc_reserved[1] = 0;
521 for (i = 0; i < 2; i++) {
522 processor.mpc_apicid = i;
523 MP_processor_info(&processor);
524 }
525 639
526 bus.mpc_type = MP_BUS; 640 bus.mpc_type = MP_BUS;
527 bus.mpc_busid = 0; 641 bus.mpc_busid = 0;
@@ -550,7 +664,6 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
550 MP_bus_info(&bus); 664 MP_bus_info(&bus);
551 } 665 }
552 666
553#ifdef CONFIG_X86_IO_APIC
554 ioapic.mpc_type = MP_IOAPIC; 667 ioapic.mpc_type = MP_IOAPIC;
555 ioapic.mpc_apicid = 2; 668 ioapic.mpc_apicid = 2;
556 ioapic.mpc_apicver = mpc_default_type > 4 ? 0x10 : 0x01; 669 ioapic.mpc_apicver = mpc_default_type > 4 ? 0x10 : 0x01;
@@ -562,7 +675,42 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
562 * We set up most of the low 16 IO-APIC pins according to MPS rules. 675 * We set up most of the low 16 IO-APIC pins according to MPS rules.
563 */ 676 */
564 construct_default_ioirq_mptable(mpc_default_type); 677 construct_default_ioirq_mptable(mpc_default_type);
678}
679#else
680static inline void construct_ioapic_table(int mpc_default_type) { }
565#endif 681#endif
682
683static inline void __init construct_default_ISA_mptable(int mpc_default_type)
684{
685 struct mpc_config_processor processor;
686 struct mpc_config_lintsrc lintsrc;
687 int linttypes[2] = { mp_ExtINT, mp_NMI };
688 int i;
689
690 /*
691 * local APIC has default address
692 */
693 mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
694
695 /*
696 * 2 CPUs, numbered 0 & 1.
697 */
698 processor.mpc_type = MP_PROCESSOR;
699 /* Either an integrated APIC or a discrete 82489DX. */
700 processor.mpc_apicver = mpc_default_type > 4 ? 0x10 : 0x01;
701 processor.mpc_cpuflag = CPU_ENABLED;
702 processor.mpc_cpufeature = (boot_cpu_data.x86 << 8) |
703 (boot_cpu_data.x86_model << 4) | boot_cpu_data.x86_mask;
704 processor.mpc_featureflag = boot_cpu_data.x86_capability[0];
705 processor.mpc_reserved[0] = 0;
706 processor.mpc_reserved[1] = 0;
707 for (i = 0; i < 2; i++) {
708 processor.mpc_apicid = i;
709 MP_processor_info(&processor);
710 }
711
712 construct_ioapic_table(mpc_default_type);
713
566 lintsrc.mpc_type = MP_LINTSRC; 714 lintsrc.mpc_type = MP_LINTSRC;
567 lintsrc.mpc_irqflag = 0; /* conforming */ 715 lintsrc.mpc_irqflag = 0; /* conforming */
568 lintsrc.mpc_srcbusid = 0; 716 lintsrc.mpc_srcbusid = 0;
@@ -578,12 +726,22 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
578static struct intel_mp_floating *mpf_found; 726static struct intel_mp_floating *mpf_found;
579 727
580/* 728/*
729 * Machine specific quirk for finding the SMP config before other setup
730 * activities destroy the table:
731 */
732int (*mach_get_smp_config_quirk)(unsigned int early);
733
734/*
581 * Scan the memory blocks for an SMP configuration block. 735 * Scan the memory blocks for an SMP configuration block.
582 */ 736 */
583static void __init __get_smp_config(unsigned early) 737static void __init __get_smp_config(unsigned int early)
584{ 738{
585 struct intel_mp_floating *mpf = mpf_found; 739 struct intel_mp_floating *mpf = mpf_found;
586 740
741 if (mach_get_smp_config_quirk) {
742 if (mach_get_smp_config_quirk(early))
743 return;
744 }
587 if (acpi_lapic && early) 745 if (acpi_lapic && early)
588 return; 746 return;
589 /* 747 /*
@@ -600,7 +758,7 @@ static void __init __get_smp_config(unsigned early)
600 758
601 printk(KERN_INFO "Intel MultiProcessor Specification v1.%d\n", 759 printk(KERN_INFO "Intel MultiProcessor Specification v1.%d\n",
602 mpf->mpf_specification); 760 mpf->mpf_specification);
603#ifdef CONFIG_X86_32 761#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_32)
604 if (mpf->mpf_feature2 & (1 << 7)) { 762 if (mpf->mpf_feature2 & (1 << 7)) {
605 printk(KERN_INFO " IMCR and PIC compatibility mode.\n"); 763 printk(KERN_INFO " IMCR and PIC compatibility mode.\n");
606 pic_mode = 1; 764 pic_mode = 1;
@@ -632,7 +790,9 @@ static void __init __get_smp_config(unsigned early)
632 * override the defaults. 790 * override the defaults.
633 */ 791 */
634 if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr), early)) { 792 if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr), early)) {
793#ifdef CONFIG_X86_LOCAL_APIC
635 smp_found_config = 0; 794 smp_found_config = 0;
795#endif
636 printk(KERN_ERR 796 printk(KERN_ERR
637 "BIOS bug, MP table errors detected!...\n"); 797 "BIOS bug, MP table errors detected!...\n");
638 printk(KERN_ERR "... disabling SMP support. " 798 printk(KERN_ERR "... disabling SMP support. "
@@ -689,7 +849,7 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,
689 unsigned int *bp = phys_to_virt(base); 849 unsigned int *bp = phys_to_virt(base);
690 struct intel_mp_floating *mpf; 850 struct intel_mp_floating *mpf;
691 851
692 Dprintk("Scan SMP from %p for %ld bytes.\n", bp, length); 852 printk(KERN_DEBUG "Scan SMP from %p for %ld bytes.\n", bp, length);
693 BUILD_BUG_ON(sizeof(*mpf) != 16); 853 BUILD_BUG_ON(sizeof(*mpf) != 16);
694 854
695 while (length > 0) { 855 while (length > 0) {
@@ -699,15 +859,21 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,
699 !mpf_checksum((unsigned char *)bp, 16) && 859 !mpf_checksum((unsigned char *)bp, 16) &&
700 ((mpf->mpf_specification == 1) 860 ((mpf->mpf_specification == 1)
701 || (mpf->mpf_specification == 4))) { 861 || (mpf->mpf_specification == 4))) {
702 862#ifdef CONFIG_X86_LOCAL_APIC
703 smp_found_config = 1; 863 smp_found_config = 1;
864#endif
704 mpf_found = mpf; 865 mpf_found = mpf;
705#ifdef CONFIG_X86_32 866
706 printk(KERN_INFO "found SMP MP-table at [%p] %08lx\n", 867 printk(KERN_INFO "found SMP MP-table at [%p] %08lx\n",
707 mpf, virt_to_phys(mpf)); 868 mpf, virt_to_phys(mpf));
708 reserve_bootmem(virt_to_phys(mpf), PAGE_SIZE, 869
870 if (!reserve)
871 return 1;
872 reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE,
709 BOOTMEM_DEFAULT); 873 BOOTMEM_DEFAULT);
710 if (mpf->mpf_physptr) { 874 if (mpf->mpf_physptr) {
875 unsigned long size = PAGE_SIZE;
876#ifdef CONFIG_X86_32
711 /* 877 /*
712 * We cannot access to MPC table to compute 878 * We cannot access to MPC table to compute
713 * table size yet, as only few megabytes from 879 * table size yet, as only few megabytes from
@@ -717,24 +883,15 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,
717 * PAGE_SIZE from mpg->mpf_physptr yields BUG() 883 * PAGE_SIZE from mpg->mpf_physptr yields BUG()
718 * in reserve_bootmem. 884 * in reserve_bootmem.
719 */ 885 */
720 unsigned long size = PAGE_SIZE;
721 unsigned long end = max_low_pfn * PAGE_SIZE; 886 unsigned long end = max_low_pfn * PAGE_SIZE;
722 if (mpf->mpf_physptr + size > end) 887 if (mpf->mpf_physptr + size > end)
723 size = end - mpf->mpf_physptr; 888 size = end - mpf->mpf_physptr;
724 reserve_bootmem(mpf->mpf_physptr, size, 889#endif
890 reserve_bootmem_generic(mpf->mpf_physptr, size,
725 BOOTMEM_DEFAULT); 891 BOOTMEM_DEFAULT);
726 } 892 }
727 893
728#else 894 return 1;
729 if (!reserve)
730 return 1;
731
732 reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE);
733 if (mpf->mpf_physptr)
734 reserve_bootmem_generic(mpf->mpf_physptr,
735 PAGE_SIZE);
736#endif
737 return 1;
738 } 895 }
739 bp += 4; 896 bp += 4;
740 length -= 16; 897 length -= 16;
@@ -742,10 +899,16 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,
742 return 0; 899 return 0;
743} 900}
744 901
745static void __init __find_smp_config(unsigned reserve) 902int (*mach_find_smp_config_quirk)(unsigned int reserve);
903
904static void __init __find_smp_config(unsigned int reserve)
746{ 905{
747 unsigned int address; 906 unsigned int address;
748 907
908 if (mach_find_smp_config_quirk) {
909 if (mach_find_smp_config_quirk(reserve))
910 return;
911 }
749 /* 912 /*
750 * FIXME: Linux assumes you have 640K of base ram.. 913 * FIXME: Linux assumes you have 640K of base ram..
751 * this continues the error... 914 * this continues the error...
@@ -790,298 +953,294 @@ void __init find_smp_config(void)
790 __find_smp_config(1); 953 __find_smp_config(1);
791} 954}
792 955
793/* -------------------------------------------------------------------------- 956#ifdef CONFIG_X86_IO_APIC
794 ACPI-based MP Configuration 957static u8 __initdata irq_used[MAX_IRQ_SOURCES];
795 -------------------------------------------------------------------------- */
796 958
797/* 959static int __init get_MP_intsrc_index(struct mpc_config_intsrc *m)
798 * Keep this outside and initialized to 0, for !CONFIG_ACPI builds: 960{
799 */ 961 int i;
800int es7000_plat;
801 962
802#ifdef CONFIG_ACPI 963 if (m->mpc_irqtype != mp_INT)
964 return 0;
803 965
804#ifdef CONFIG_X86_IO_APIC 966 if (m->mpc_irqflag != 0x0f)
967 return 0;
805 968
806#define MP_ISA_BUS 0 969 /* not legacy */
807 970
808extern struct mp_ioapic_routing mp_ioapic_routing[MAX_IO_APICS]; 971 for (i = 0; i < mp_irq_entries; i++) {
972 if (mp_irqs[i].mp_irqtype != mp_INT)
973 continue;
809 974
810static int mp_find_ioapic(int gsi) 975 if (mp_irqs[i].mp_irqflag != 0x0f)
811{ 976 continue;
812 int i = 0;
813 977
814 /* Find the IOAPIC that manages this GSI. */ 978 if (mp_irqs[i].mp_srcbus != m->mpc_srcbus)
815 for (i = 0; i < nr_ioapics; i++) { 979 continue;
816 if ((gsi >= mp_ioapic_routing[i].gsi_base) 980 if (mp_irqs[i].mp_srcbusirq != m->mpc_srcbusirq)
817 && (gsi <= mp_ioapic_routing[i].gsi_end)) 981 continue;
818 return i; 982 if (irq_used[i]) {
983 /* already claimed */
984 return -2;
985 }
986 irq_used[i] = 1;
987 return i;
819 } 988 }
820 989
821 printk(KERN_ERR "ERROR: Unable to locate IOAPIC for GSI %d\n", gsi); 990 /* not found */
822 return -1; 991 return -1;
823} 992}
824 993
825static u8 __init uniq_ioapic_id(u8 id) 994#define SPARE_SLOT_NUM 20
826{ 995
827#ifdef CONFIG_X86_32 996static struct mpc_config_intsrc __initdata *m_spare[SPARE_SLOT_NUM];
828 if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
829 !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
830 return io_apic_get_unique_id(nr_ioapics, id);
831 else
832 return id;
833#else
834 int i;
835 DECLARE_BITMAP(used, 256);
836 bitmap_zero(used, 256);
837 for (i = 0; i < nr_ioapics; i++) {
838 struct mpc_config_ioapic *ia = &mp_ioapics[i];
839 __set_bit(ia->mpc_apicid, used);
840 }
841 if (!test_bit(id, used))
842 return id;
843 return find_first_zero_bit(used, 256);
844#endif 997#endif
845}
846 998
847void __init mp_register_ioapic(int id, u32 address, u32 gsi_base) 999static int __init replace_intsrc_all(struct mp_config_table *mpc,
1000 unsigned long mpc_new_phys,
1001 unsigned long mpc_new_length)
848{ 1002{
849 int idx = 0; 1003#ifdef CONFIG_X86_IO_APIC
850 1004 int i;
851 if (bad_ioapic(address)) 1005 int nr_m_spare = 0;
852 return; 1006#endif
853 1007
854 idx = nr_ioapics; 1008 int count = sizeof(*mpc);
1009 unsigned char *mpt = ((unsigned char *)mpc) + count;
855 1010
856 mp_ioapics[idx].mpc_type = MP_IOAPIC; 1011 printk(KERN_INFO "mpc_length %x\n", mpc->mpc_length);
857 mp_ioapics[idx].mpc_flags = MPC_APIC_USABLE; 1012 while (count < mpc->mpc_length) {
858 mp_ioapics[idx].mpc_apicaddr = address; 1013 switch (*mpt) {
1014 case MP_PROCESSOR:
1015 {
1016 struct mpc_config_processor *m =
1017 (struct mpc_config_processor *)mpt;
1018 mpt += sizeof(*m);
1019 count += sizeof(*m);
1020 break;
1021 }
1022 case MP_BUS:
1023 {
1024 struct mpc_config_bus *m =
1025 (struct mpc_config_bus *)mpt;
1026 mpt += sizeof(*m);
1027 count += sizeof(*m);
1028 break;
1029 }
1030 case MP_IOAPIC:
1031 {
1032 mpt += sizeof(struct mpc_config_ioapic);
1033 count += sizeof(struct mpc_config_ioapic);
1034 break;
1035 }
1036 case MP_INTSRC:
1037 {
1038#ifdef CONFIG_X86_IO_APIC
1039 struct mpc_config_intsrc *m =
1040 (struct mpc_config_intsrc *)mpt;
859 1041
860 set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address); 1042 printk(KERN_INFO "OLD ");
861 mp_ioapics[idx].mpc_apicid = uniq_ioapic_id(id); 1043 print_MP_intsrc_info(m);
862#ifdef CONFIG_X86_32 1044 i = get_MP_intsrc_index(m);
863 mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx); 1045 if (i > 0) {
864#else 1046 assign_to_mpc_intsrc(&mp_irqs[i], m);
865 mp_ioapics[idx].mpc_apicver = 0; 1047 printk(KERN_INFO "NEW ");
1048 print_mp_irq_info(&mp_irqs[i]);
1049 } else if (!i) {
1050 /* legacy, do nothing */
1051 } else if (nr_m_spare < SPARE_SLOT_NUM) {
1052 /*
1053 * not found (-1), or duplicated (-2)
1054 * are invalid entries,
1055 * we need to use the slot later
1056 */
1057 m_spare[nr_m_spare] = m;
1058 nr_m_spare++;
1059 }
866#endif 1060#endif
867 /* 1061 mpt += sizeof(struct mpc_config_intsrc);
868 * Build basic GSI lookup table to facilitate gsi->io_apic lookups 1062 count += sizeof(struct mpc_config_intsrc);
869 * and to prevent reprogramming of IOAPIC pins (PCI GSIs). 1063 break;
870 */ 1064 }
871 mp_ioapic_routing[idx].apic_id = mp_ioapics[idx].mpc_apicid; 1065 case MP_LINTSRC:
872 mp_ioapic_routing[idx].gsi_base = gsi_base; 1066 {
873 mp_ioapic_routing[idx].gsi_end = gsi_base + 1067 struct mpc_config_lintsrc *m =
874 io_apic_get_redir_entries(idx); 1068 (struct mpc_config_lintsrc *)mpt;
875 1069 mpt += sizeof(*m);
876 printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%x, " 1070 count += sizeof(*m);
877 "GSI %d-%d\n", idx, mp_ioapics[idx].mpc_apicid, 1071 break;
878 mp_ioapics[idx].mpc_apicver, mp_ioapics[idx].mpc_apicaddr, 1072 }
879 mp_ioapic_routing[idx].gsi_base, mp_ioapic_routing[idx].gsi_end); 1073 default:
880 1074 /* wrong mptable */
881 nr_ioapics++; 1075 printk(KERN_ERR "Your mptable is wrong, contact your HW vendor!\n");
882} 1076 printk(KERN_ERR "type %x\n", *mpt);
1077 print_hex_dump(KERN_ERR, " ", DUMP_PREFIX_ADDRESS, 16,
1078 1, mpc, mpc->mpc_length, 1);
1079 goto out;
1080 }
1081 }
883 1082
884void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi) 1083#ifdef CONFIG_X86_IO_APIC
885{ 1084 for (i = 0; i < mp_irq_entries; i++) {
886 struct mpc_config_intsrc intsrc; 1085 if (irq_used[i])
887 int ioapic = -1; 1086 continue;
888 int pin = -1;
889 1087
890 /* 1088 if (mp_irqs[i].mp_irqtype != mp_INT)
891 * Convert 'gsi' to 'ioapic.pin'. 1089 continue;
892 */
893 ioapic = mp_find_ioapic(gsi);
894 if (ioapic < 0)
895 return;
896 pin = gsi - mp_ioapic_routing[ioapic].gsi_base;
897 1090
898 /* 1091 if (mp_irqs[i].mp_irqflag != 0x0f)
899 * TBD: This check is for faulty timer entries, where the override 1092 continue;
900 * erroneously sets the trigger to level, resulting in a HUGE
901 * increase of timer interrupts!
902 */
903 if ((bus_irq == 0) && (trigger == 3))
904 trigger = 1;
905 1093
906 intsrc.mpc_type = MP_INTSRC; 1094 if (nr_m_spare > 0) {
907 intsrc.mpc_irqtype = mp_INT; 1095 printk(KERN_INFO "*NEW* found ");
908 intsrc.mpc_irqflag = (trigger << 2) | polarity; 1096 nr_m_spare--;
909 intsrc.mpc_srcbus = MP_ISA_BUS; 1097 assign_to_mpc_intsrc(&mp_irqs[i], m_spare[nr_m_spare]);
910 intsrc.mpc_srcbusirq = bus_irq; /* IRQ */ 1098 m_spare[nr_m_spare] = NULL;
911 intsrc.mpc_dstapic = mp_ioapics[ioapic].mpc_apicid; /* APIC ID */ 1099 } else {
912 intsrc.mpc_dstirq = pin; /* INTIN# */ 1100 struct mpc_config_intsrc *m =
1101 (struct mpc_config_intsrc *)mpt;
1102 count += sizeof(struct mpc_config_intsrc);
1103 if (!mpc_new_phys) {
1104 printk(KERN_INFO "No spare slots, try to append...take your risk, new mpc_length %x\n", count);
1105 } else {
1106 if (count <= mpc_new_length)
1107 printk(KERN_INFO "No spare slots, try to append..., new mpc_length %x\n", count);
1108 else {
1109 printk(KERN_ERR "mpc_new_length %lx is too small\n", mpc_new_length);
1110 goto out;
1111 }
1112 }
1113 assign_to_mpc_intsrc(&mp_irqs[i], m);
1114 mpc->mpc_length = count;
1115 mpt += sizeof(struct mpc_config_intsrc);
1116 }
1117 print_mp_irq_info(&mp_irqs[i]);
1118 }
1119#endif
1120out:
1121 /* update checksum */
1122 mpc->mpc_checksum = 0;
1123 mpc->mpc_checksum -= mpf_checksum((unsigned char *)mpc,
1124 mpc->mpc_length);
913 1125
914 MP_intsrc_info(&intsrc); 1126 return 0;
915} 1127}
916 1128
917void __init mp_config_acpi_legacy_irqs(void) 1129static int __initdata enable_update_mptable;
918{
919 struct mpc_config_intsrc intsrc;
920 int i = 0;
921 int ioapic = -1;
922 1130
923#if defined (CONFIG_MCA) || defined (CONFIG_EISA) 1131static int __init update_mptable_setup(char *str)
924 /* 1132{
925 * Fabricate the legacy ISA bus (bus #31). 1133 enable_update_mptable = 1;
926 */ 1134 return 0;
927 mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; 1135}
928#endif 1136early_param("update_mptable", update_mptable_setup);
929 set_bit(MP_ISA_BUS, mp_bus_not_pci);
930 Dprintk("Bus #%d is ISA\n", MP_ISA_BUS);
931 1137
932 /* 1138static unsigned long __initdata mpc_new_phys;
933 * Older generations of ES7000 have no legacy identity mappings 1139static unsigned long mpc_new_length __initdata = 4096;
934 */
935 if (es7000_plat == 1)
936 return;
937 1140
938 /* 1141/* alloc_mptable or alloc_mptable=4k */
939 * Locate the IOAPIC that manages the ISA IRQs (0-15). 1142static int __initdata alloc_mptable;
940 */ 1143static int __init parse_alloc_mptable_opt(char *p)
941 ioapic = mp_find_ioapic(0); 1144{
942 if (ioapic < 0) 1145 enable_update_mptable = 1;
943 return; 1146 alloc_mptable = 1;
1147 if (!p)
1148 return 0;
1149 mpc_new_length = memparse(p, &p);
1150 return 0;
1151}
1152early_param("alloc_mptable", parse_alloc_mptable_opt);
944 1153
945 intsrc.mpc_type = MP_INTSRC; 1154void __init early_reserve_e820_mpc_new(void)
946 intsrc.mpc_irqflag = 0; /* Conforming */ 1155{
947 intsrc.mpc_srcbus = MP_ISA_BUS; 1156 if (enable_update_mptable && alloc_mptable) {
948#ifdef CONFIG_X86_IO_APIC 1157 u64 startt = 0;
949 intsrc.mpc_dstapic = mp_ioapics[ioapic].mpc_apicid; 1158#ifdef CONFIG_X86_TRAMPOLINE
1159 startt = TRAMPOLINE_BASE;
950#endif 1160#endif
951 /* 1161 mpc_new_phys = early_reserve_e820(startt, mpc_new_length, 4);
952 * Use the default configuration for the IRQs 0-15. Unless
953 * overridden by (MADT) interrupt source override entries.
954 */
955 for (i = 0; i < 16; i++) {
956 int idx;
957
958 for (idx = 0; idx < mp_irq_entries; idx++) {
959 struct mpc_config_intsrc *irq = mp_irqs + idx;
960
961 /* Do we already have a mapping for this ISA IRQ? */
962 if (irq->mpc_srcbus == MP_ISA_BUS
963 && irq->mpc_srcbusirq == i)
964 break;
965
966 /* Do we already have a mapping for this IOAPIC pin */
967 if ((irq->mpc_dstapic == intsrc.mpc_dstapic) &&
968 (irq->mpc_dstirq == i))
969 break;
970 }
971
972 if (idx != mp_irq_entries) {
973 printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i);
974 continue; /* IRQ already used */
975 }
976
977 intsrc.mpc_irqtype = mp_INT;
978 intsrc.mpc_srcbusirq = i; /* Identity mapped */
979 intsrc.mpc_dstirq = i;
980
981 MP_intsrc_info(&intsrc);
982 } 1162 }
983} 1163}
984 1164
985int mp_register_gsi(u32 gsi, int triggering, int polarity) 1165static int __init update_mp_table(void)
986{ 1166{
987 int ioapic; 1167 char str[16];
988 int ioapic_pin; 1168 char oem[10];
989#ifdef CONFIG_X86_32 1169 struct intel_mp_floating *mpf;
990#define MAX_GSI_NUM 4096 1170 struct mp_config_table *mpc;
991#define IRQ_COMPRESSION_START 64 1171 struct mp_config_table *mpc_new;
1172
1173 if (!enable_update_mptable)
1174 return 0;
1175
1176 mpf = mpf_found;
1177 if (!mpf)
1178 return 0;
992 1179
993 static int pci_irq = IRQ_COMPRESSION_START;
994 /* 1180 /*
995 * Mapping between Global System Interrupts, which 1181 * Now see if we need to go further.
996 * represent all possible interrupts, and IRQs
997 * assigned to actual devices.
998 */ 1182 */
999 static int gsi_to_irq[MAX_GSI_NUM]; 1183 if (mpf->mpf_feature1 != 0)
1000#else 1184 return 0;
1001
1002 if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
1003 return gsi;
1004#endif
1005 1185
1006 /* Don't set up the ACPI SCI because it's already set up */ 1186 if (!mpf->mpf_physptr)
1007 if (acpi_gbl_FADT.sci_interrupt == gsi) 1187 return 0;
1008 return gsi;
1009 1188
1010 ioapic = mp_find_ioapic(gsi); 1189 mpc = phys_to_virt(mpf->mpf_physptr);
1011 if (ioapic < 0) {
1012 printk(KERN_WARNING "No IOAPIC for GSI %u\n", gsi);
1013 return gsi;
1014 }
1015 1190
1016 ioapic_pin = gsi - mp_ioapic_routing[ioapic].gsi_base; 1191 if (!smp_check_mpc(mpc, oem, str))
1192 return 0;
1017 1193
1018#ifdef CONFIG_X86_32 1194 printk(KERN_INFO "mpf: %lx\n", virt_to_phys(mpf));
1019 if (ioapic_renumber_irq) 1195 printk(KERN_INFO "mpf_physptr: %x\n", mpf->mpf_physptr);
1020 gsi = ioapic_renumber_irq(ioapic, gsi);
1021#endif
1022 1196
1023 /* 1197 if (mpc_new_phys && mpc->mpc_length > mpc_new_length) {
1024 * Avoid pin reprogramming. PRTs typically include entries 1198 mpc_new_phys = 0;
1025 * with redundant pin->gsi mappings (but unique PCI devices); 1199 printk(KERN_INFO "mpc_new_length is %ld, please use alloc_mptable=8k\n",
1026 * we only program the IOAPIC on the first. 1200 mpc_new_length);
1027 */
1028 if (ioapic_pin > MP_MAX_IOAPIC_PIN) {
1029 printk(KERN_ERR "Invalid reference to IOAPIC pin "
1030 "%d-%d\n", mp_ioapic_routing[ioapic].apic_id,
1031 ioapic_pin);
1032 return gsi;
1033 } 1201 }
1034 if (test_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed)) { 1202
1035 Dprintk(KERN_DEBUG "Pin %d-%d already programmed\n", 1203 if (!mpc_new_phys) {
1036 mp_ioapic_routing[ioapic].apic_id, ioapic_pin); 1204 unsigned char old, new;
1037#ifdef CONFIG_X86_32 1205 /* check if we can change the postion */
1038 return (gsi < IRQ_COMPRESSION_START ? gsi : gsi_to_irq[gsi]); 1206 mpc->mpc_checksum = 0;
1039#else 1207 old = mpf_checksum((unsigned char *)mpc, mpc->mpc_length);
1040 return gsi; 1208 mpc->mpc_checksum = 0xff;
1041#endif 1209 new = mpf_checksum((unsigned char *)mpc, mpc->mpc_length);
1210 if (old == new) {
1211 printk(KERN_INFO "mpc is readonly, please try alloc_mptable instead\n");
1212 return 0;
1213 }
1214 printk(KERN_INFO "use in-positon replacing\n");
1215 } else {
1216 mpf->mpf_physptr = mpc_new_phys;
1217 mpc_new = phys_to_virt(mpc_new_phys);
1218 memcpy(mpc_new, mpc, mpc->mpc_length);
1219 mpc = mpc_new;
1220 /* check if we can modify that */
1221 if (mpc_new_phys - mpf->mpf_physptr) {
1222 struct intel_mp_floating *mpf_new;
1223 /* steal 16 bytes from [0, 1k) */
1224 printk(KERN_INFO "mpf new: %x\n", 0x400 - 16);
1225 mpf_new = phys_to_virt(0x400 - 16);
1226 memcpy(mpf_new, mpf, 16);
1227 mpf = mpf_new;
1228 mpf->mpf_physptr = mpc_new_phys;
1229 }
1230 mpf->mpf_checksum = 0;
1231 mpf->mpf_checksum -= mpf_checksum((unsigned char *)mpf, 16);
1232 printk(KERN_INFO "mpf_physptr new: %x\n", mpf->mpf_physptr);
1042 } 1233 }
1043 1234
1044 set_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed);
1045#ifdef CONFIG_X86_32
1046 /* 1235 /*
1047 * For GSI >= 64, use IRQ compression 1236 * only replace the one with mp_INT and
1237 * MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,
1238 * already in mp_irqs , stored by ... and mp_config_acpi_gsi,
1239 * may need pci=routeirq for all coverage
1048 */ 1240 */
1049 if ((gsi >= IRQ_COMPRESSION_START) 1241 replace_intsrc_all(mpc, mpc_new_phys, mpc_new_length);
1050 && (triggering == ACPI_LEVEL_SENSITIVE)) { 1242
1051 /* 1243 return 0;
1052 * For PCI devices assign IRQs in order, avoiding gaps
1053 * due to unused I/O APIC pins.
1054 */
1055 int irq = gsi;
1056 if (gsi < MAX_GSI_NUM) {
1057 /*
1058 * Retain the VIA chipset work-around (gsi > 15), but
1059 * avoid a problem where the 8254 timer (IRQ0) is setup
1060 * via an override (so it's not on pin 0 of the ioapic),
1061 * and at the same time, the pin 0 interrupt is a PCI
1062 * type. The gsi > 15 test could cause these two pins
1063 * to be shared as IRQ0, and they are not shareable.
1064 * So test for this condition, and if necessary, avoid
1065 * the pin collision.
1066 */
1067 gsi = pci_irq++;
1068 /*
1069 * Don't assign IRQ used by ACPI SCI
1070 */
1071 if (gsi == acpi_gbl_FADT.sci_interrupt)
1072 gsi = pci_irq++;
1073 gsi_to_irq[irq] = gsi;
1074 } else {
1075 printk(KERN_ERR "GSI %u is too high\n", gsi);
1076 return gsi;
1077 }
1078 }
1079#endif
1080 io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,
1081 triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
1082 polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
1083 return gsi;
1084} 1244}
1085 1245
1086#endif /* CONFIG_X86_IO_APIC */ 1246late_initcall(update_mp_table);
1087#endif /* CONFIG_ACPI */
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 1f3abe048e93..a153b3905f60 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -117,12 +117,20 @@ static int msr_open(struct inode *inode, struct file *file)
117{ 117{
118 unsigned int cpu = iminor(file->f_path.dentry->d_inode); 118 unsigned int cpu = iminor(file->f_path.dentry->d_inode);
119 struct cpuinfo_x86 *c = &cpu_data(cpu); 119 struct cpuinfo_x86 *c = &cpu_data(cpu);
120 int ret = 0;
120 121
121 if (cpu >= NR_CPUS || !cpu_online(cpu)) 122 lock_kernel();
122 return -ENXIO; /* No such CPU */ 123 cpu = iminor(file->f_path.dentry->d_inode);
123 if (!cpu_has(c, X86_FEATURE_MSR))
124 return -EIO; /* MSR not supported */
125 124
125 if (cpu >= NR_CPUS || !cpu_online(cpu)) {
126 ret = -ENXIO; /* No such CPU */
127 goto out;
128 }
129 c = &cpu_data(cpu);
130 if (!cpu_has(c, X86_FEATURE_MSR))
131 ret = -EIO; /* MSR not supported */
132out:
133 unlock_kernel();
126 return 0; 134 return 0;
127} 135}
128 136
diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi.c
index 11b14bbaa61e..ec024b3baad0 100644
--- a/arch/x86/kernel/nmi_32.c
+++ b/arch/x86/kernel/nmi.c
@@ -11,10 +11,13 @@
11 * Mikael Pettersson : PM converted to driver model. Disable/enable API. 11 * Mikael Pettersson : PM converted to driver model. Disable/enable API.
12 */ 12 */
13 13
14#include <asm/apic.h>
15
16#include <linux/nmi.h>
17#include <linux/mm.h>
14#include <linux/delay.h> 18#include <linux/delay.h>
15#include <linux/interrupt.h> 19#include <linux/interrupt.h>
16#include <linux/module.h> 20#include <linux/module.h>
17#include <linux/nmi.h>
18#include <linux/sysdev.h> 21#include <linux/sysdev.h>
19#include <linux/sysctl.h> 22#include <linux/sysctl.h>
20#include <linux/percpu.h> 23#include <linux/percpu.h>
@@ -22,13 +25,18 @@
22#include <linux/cpumask.h> 25#include <linux/cpumask.h>
23#include <linux/kernel_stat.h> 26#include <linux/kernel_stat.h>
24#include <linux/kdebug.h> 27#include <linux/kdebug.h>
25#include <linux/slab.h> 28#include <linux/smp.h>
26 29
30#include <asm/i8259.h>
31#include <asm/io_apic.h>
27#include <asm/smp.h> 32#include <asm/smp.h>
28#include <asm/nmi.h> 33#include <asm/nmi.h>
34#include <asm/proto.h>
29#include <asm/timer.h> 35#include <asm/timer.h>
30 36
31#include "mach_traps.h" 37#include <asm/mce.h>
38
39#include <mach_traps.h>
32 40
33int unknown_nmi_panic; 41int unknown_nmi_panic;
34int nmi_watchdog_enabled; 42int nmi_watchdog_enabled;
@@ -42,28 +50,65 @@ static cpumask_t backtrace_mask = CPU_MASK_NONE;
42 * 0: the lapic NMI watchdog is disabled, but can be enabled 50 * 0: the lapic NMI watchdog is disabled, but can be enabled
43 */ 51 */
44atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ 52atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */
53EXPORT_SYMBOL(nmi_active);
45 54
46unsigned int nmi_watchdog = NMI_DEFAULT; 55unsigned int nmi_watchdog = NMI_NONE;
47static unsigned int nmi_hz = HZ; 56EXPORT_SYMBOL(nmi_watchdog);
48 57
58static int panic_on_timeout;
59
60static unsigned int nmi_hz = HZ;
49static DEFINE_PER_CPU(short, wd_enabled); 61static DEFINE_PER_CPU(short, wd_enabled);
62static int endflag __initdata;
50 63
51static int endflag __initdata = 0; 64static inline unsigned int get_nmi_count(int cpu)
65{
66#ifdef CONFIG_X86_64
67 return cpu_pda(cpu)->__nmi_count;
68#else
69 return nmi_count(cpu);
70#endif
71}
72
73static inline int mce_in_progress(void)
74{
75#if defined(CONFIG_X86_64) && defined(CONFIG_X86_MCE)
76 return atomic_read(&mce_entry) > 0;
77#endif
78 return 0;
79}
80
81/*
82 * Take the local apic timer and PIT/HPET into account. We don't
83 * know which one is active, when we have highres/dyntick on
84 */
85static inline unsigned int get_timer_irqs(int cpu)
86{
87#ifdef CONFIG_X86_64
88 return read_pda(apic_timer_irqs) + read_pda(irq0_irqs);
89#else
90 return per_cpu(irq_stat, cpu).apic_timer_irqs +
91 per_cpu(irq_stat, cpu).irq0_irqs;
92#endif
93}
52 94
53#ifdef CONFIG_SMP 95#ifdef CONFIG_SMP
54/* The performance counters used by NMI_LOCAL_APIC don't trigger when 96/*
97 * The performance counters used by NMI_LOCAL_APIC don't trigger when
55 * the CPU is idle. To make sure the NMI watchdog really ticks on all 98 * the CPU is idle. To make sure the NMI watchdog really ticks on all
56 * CPUs during the test make them busy. 99 * CPUs during the test make them busy.
57 */ 100 */
58static __init void nmi_cpu_busy(void *data) 101static __init void nmi_cpu_busy(void *data)
59{ 102{
60 local_irq_enable_in_hardirq(); 103 local_irq_enable_in_hardirq();
61 /* Intentionally don't use cpu_relax here. This is 104 /*
62 to make sure that the performance counter really ticks, 105 * Intentionally don't use cpu_relax here. This is
63 even if there is a simulator or similar that catches the 106 * to make sure that the performance counter really ticks,
64 pause instruction. On a real HT machine this is fine because 107 * even if there is a simulator or similar that catches the
65 all other CPUs are busy with "useless" delay loops and don't 108 * pause instruction. On a real HT machine this is fine because
66 care if they get somewhat less cycles. */ 109 * all other CPUs are busy with "useless" delay loops and don't
110 * care if they get somewhat less cycles.
111 */
67 while (endflag == 0) 112 while (endflag == 0)
68 mb(); 113 mb();
69} 114}
@@ -74,13 +119,10 @@ int __init check_nmi_watchdog(void)
74 unsigned int *prev_nmi_count; 119 unsigned int *prev_nmi_count;
75 int cpu; 120 int cpu;
76 121
77 if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DISABLED)) 122 if (!nmi_watchdog_active() || !atomic_read(&nmi_active))
78 return 0;
79
80 if (!atomic_read(&nmi_active))
81 return 0; 123 return 0;
82 124
83 prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL); 125 prev_nmi_count = kmalloc(nr_cpu_ids * sizeof(int), GFP_KERNEL);
84 if (!prev_nmi_count) 126 if (!prev_nmi_count)
85 goto error; 127 goto error;
86 128
@@ -88,29 +130,23 @@ int __init check_nmi_watchdog(void)
88 130
89#ifdef CONFIG_SMP 131#ifdef CONFIG_SMP
90 if (nmi_watchdog == NMI_LOCAL_APIC) 132 if (nmi_watchdog == NMI_LOCAL_APIC)
91 smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0); 133 smp_call_function(nmi_cpu_busy, (void *)&endflag, 0);
92#endif 134#endif
93 135
94 for_each_possible_cpu(cpu) 136 for_each_possible_cpu(cpu)
95 prev_nmi_count[cpu] = nmi_count(cpu); 137 prev_nmi_count[cpu] = get_nmi_count(cpu);
96 local_irq_enable(); 138 local_irq_enable();
97 mdelay((20*1000)/nmi_hz); // wait 20 ticks 139 mdelay((20 * 1000) / nmi_hz); /* wait 20 ticks */
98 140
99 for_each_possible_cpu(cpu) { 141 for_each_online_cpu(cpu) {
100#ifdef CONFIG_SMP
101 /* Check cpu_callin_map here because that is set
102 after the timer is started. */
103 if (!cpu_isset(cpu, cpu_callin_map))
104 continue;
105#endif
106 if (!per_cpu(wd_enabled, cpu)) 142 if (!per_cpu(wd_enabled, cpu))
107 continue; 143 continue;
108 if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) { 144 if (get_nmi_count(cpu) - prev_nmi_count[cpu] <= 5) {
109 printk(KERN_WARNING "WARNING: CPU#%d: NMI " 145 printk(KERN_WARNING "WARNING: CPU#%d: NMI "
110 "appears to be stuck (%d->%d)!\n", 146 "appears to be stuck (%d->%d)!\n",
111 cpu, 147 cpu,
112 prev_nmi_count[cpu], 148 prev_nmi_count[cpu],
113 nmi_count(cpu)); 149 get_nmi_count(cpu));
114 per_cpu(wd_enabled, cpu) = 0; 150 per_cpu(wd_enabled, cpu) = 0;
115 atomic_dec(&nmi_active); 151 atomic_dec(&nmi_active);
116 } 152 }
@@ -123,37 +159,49 @@ int __init check_nmi_watchdog(void)
123 } 159 }
124 printk("OK.\n"); 160 printk("OK.\n");
125 161
126 /* now that we know it works we can reduce NMI frequency to 162 /*
127 something more reasonable; makes a difference in some configs */ 163 * now that we know it works we can reduce NMI frequency to
164 * something more reasonable; makes a difference in some configs
165 */
128 if (nmi_watchdog == NMI_LOCAL_APIC) 166 if (nmi_watchdog == NMI_LOCAL_APIC)
129 nmi_hz = lapic_adjust_nmi_hz(1); 167 nmi_hz = lapic_adjust_nmi_hz(1);
130 168
131 kfree(prev_nmi_count); 169 kfree(prev_nmi_count);
132 return 0; 170 return 0;
133error: 171error:
134 timer_ack = !cpu_has_tsc; 172 if (nmi_watchdog == NMI_IO_APIC && !timer_through_8259)
135 173 disable_8259A_irq(0);
174#ifdef CONFIG_X86_32
175 timer_ack = 0;
176#endif
136 return -1; 177 return -1;
137} 178}
138 179
139static int __init setup_nmi_watchdog(char *str) 180static int __init setup_nmi_watchdog(char *str)
140{ 181{
141 int nmi; 182 unsigned int nmi;
183
184 if (!strncmp(str, "panic", 5)) {
185 panic_on_timeout = 1;
186 str = strchr(str, ',');
187 if (!str)
188 return 1;
189 ++str;
190 }
142 191
143 get_option(&str, &nmi); 192 get_option(&str, &nmi);
144 193
145 if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE)) 194 if (nmi >= NMI_INVALID)
146 return 0; 195 return 0;
147 196
148 nmi_watchdog = nmi; 197 nmi_watchdog = nmi;
149 return 1; 198 return 1;
150} 199}
151
152__setup("nmi_watchdog=", setup_nmi_watchdog); 200__setup("nmi_watchdog=", setup_nmi_watchdog);
153 201
154 202/*
155/* Suspend/resume support */ 203 * Suspend/resume support
156 204 */
157#ifdef CONFIG_PM 205#ifdef CONFIG_PM
158 206
159static int nmi_pm_active; /* nmi_active before suspend */ 207static int nmi_pm_active; /* nmi_active before suspend */
@@ -177,7 +225,6 @@ static int lapic_nmi_resume(struct sys_device *dev)
177 return 0; 225 return 0;
178} 226}
179 227
180
181static struct sysdev_class nmi_sysclass = { 228static struct sysdev_class nmi_sysclass = {
182 .name = "lapic_nmi", 229 .name = "lapic_nmi",
183 .resume = lapic_nmi_resume, 230 .resume = lapic_nmi_resume,
@@ -193,7 +240,8 @@ static int __init init_lapic_nmi_sysfs(void)
193{ 240{
194 int error; 241 int error;
195 242
196 /* should really be a BUG_ON but b/c this is an 243 /*
244 * should really be a BUG_ON but b/c this is an
197 * init call, it just doesn't work. -dcz 245 * init call, it just doesn't work. -dcz
198 */ 246 */
199 if (nmi_watchdog != NMI_LOCAL_APIC) 247 if (nmi_watchdog != NMI_LOCAL_APIC)
@@ -207,6 +255,7 @@ static int __init init_lapic_nmi_sysfs(void)
207 error = sysdev_register(&device_lapic_nmi); 255 error = sysdev_register(&device_lapic_nmi);
208 return error; 256 return error;
209} 257}
258
210/* must come after the local APIC's device_initcall() */ 259/* must come after the local APIC's device_initcall() */
211late_initcall(init_lapic_nmi_sysfs); 260late_initcall(init_lapic_nmi_sysfs);
212 261
@@ -223,12 +272,12 @@ static void __acpi_nmi_enable(void *__unused)
223void acpi_nmi_enable(void) 272void acpi_nmi_enable(void)
224{ 273{
225 if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC) 274 if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
226 on_each_cpu(__acpi_nmi_enable, NULL, 0, 1); 275 on_each_cpu(__acpi_nmi_enable, NULL, 1);
227} 276}
228 277
229static void __acpi_nmi_disable(void *__unused) 278static void __acpi_nmi_disable(void *__unused)
230{ 279{
231 apic_write(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED); 280 apic_write_around(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED);
232} 281}
233 282
234/* 283/*
@@ -237,7 +286,7 @@ static void __acpi_nmi_disable(void *__unused)
237void acpi_nmi_disable(void) 286void acpi_nmi_disable(void)
238{ 287{
239 if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC) 288 if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
240 on_each_cpu(__acpi_nmi_disable, NULL, 0, 1); 289 on_each_cpu(__acpi_nmi_disable, NULL, 1);
241} 290}
242 291
243void setup_apic_nmi_watchdog(void *unused) 292void setup_apic_nmi_watchdog(void *unused)
@@ -247,12 +296,13 @@ void setup_apic_nmi_watchdog(void *unused)
247 296
248 /* cheap hack to support suspend/resume */ 297 /* cheap hack to support suspend/resume */
249 /* if cpu0 is not active neither should the other cpus */ 298 /* if cpu0 is not active neither should the other cpus */
250 if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0)) 299 if (smp_processor_id() != 0 && atomic_read(&nmi_active) <= 0)
251 return; 300 return;
252 301
253 switch (nmi_watchdog) { 302 switch (nmi_watchdog) {
254 case NMI_LOCAL_APIC: 303 case NMI_LOCAL_APIC:
255 __get_cpu_var(wd_enabled) = 1; /* enable it before to avoid race with handler */ 304 /* enable it before to avoid race with handler */
305 __get_cpu_var(wd_enabled) = 1;
256 if (lapic_watchdog_init(nmi_hz) < 0) { 306 if (lapic_watchdog_init(nmi_hz) < 0) {
257 __get_cpu_var(wd_enabled) = 0; 307 __get_cpu_var(wd_enabled) = 0;
258 return; 308 return;
@@ -267,9 +317,8 @@ void setup_apic_nmi_watchdog(void *unused)
267void stop_apic_nmi_watchdog(void *unused) 317void stop_apic_nmi_watchdog(void *unused)
268{ 318{
269 /* only support LOCAL and IO APICs for now */ 319 /* only support LOCAL and IO APICs for now */
270 if ((nmi_watchdog != NMI_LOCAL_APIC) && 320 if (!nmi_watchdog_active())
271 (nmi_watchdog != NMI_IO_APIC)) 321 return;
272 return;
273 if (__get_cpu_var(wd_enabled) == 0) 322 if (__get_cpu_var(wd_enabled) == 0)
274 return; 323 return;
275 if (nmi_watchdog == NMI_LOCAL_APIC) 324 if (nmi_watchdog == NMI_LOCAL_APIC)
@@ -289,26 +338,26 @@ void stop_apic_nmi_watchdog(void *unused)
289 * since NMIs don't listen to _any_ locks, we have to be extremely 338 * since NMIs don't listen to _any_ locks, we have to be extremely
290 * careful not to rely on unsafe variables. The printk might lock 339 * careful not to rely on unsafe variables. The printk might lock
291 * up though, so we have to break up any console locks first ... 340 * up though, so we have to break up any console locks first ...
292 * [when there will be more tty-related locks, break them up 341 * [when there will be more tty-related locks, break them up here too!]
293 * here too!]
294 */ 342 */
295 343
296static unsigned int 344static DEFINE_PER_CPU(unsigned, last_irq_sum);
297 last_irq_sums [NR_CPUS], 345static DEFINE_PER_CPU(local_t, alert_counter);
298 alert_counter [NR_CPUS]; 346static DEFINE_PER_CPU(int, nmi_touch);
299 347
300void touch_nmi_watchdog(void) 348void touch_nmi_watchdog(void)
301{ 349{
302 if (nmi_watchdog > 0) { 350 if (nmi_watchdog_active()) {
303 unsigned cpu; 351 unsigned cpu;
304 352
305 /* 353 /*
306 * Just reset the alert counters, (other CPUs might be 354 * Tell other CPUs to reset their alert counters. We cannot
307 * spinning on locks we hold): 355 * do it ourselves because the alert count increase is not
356 * atomic.
308 */ 357 */
309 for_each_present_cpu(cpu) { 358 for_each_present_cpu(cpu) {
310 if (alert_counter[cpu]) 359 if (per_cpu(nmi_touch, cpu) != 1)
311 alert_counter[cpu] = 0; 360 per_cpu(nmi_touch, cpu) = 1;
312 } 361 }
313 } 362 }
314 363
@@ -319,12 +368,9 @@ void touch_nmi_watchdog(void)
319} 368}
320EXPORT_SYMBOL(touch_nmi_watchdog); 369EXPORT_SYMBOL(touch_nmi_watchdog);
321 370
322extern void die_nmi(struct pt_regs *, const char *msg);
323
324notrace __kprobes int 371notrace __kprobes int
325nmi_watchdog_tick(struct pt_regs *regs, unsigned reason) 372nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
326{ 373{
327
328 /* 374 /*
329 * Since current_thread_info()-> is always on the stack, and we 375 * Since current_thread_info()-> is always on the stack, and we
330 * always switch the stack NMI-atomically, it's safe to use 376 * always switch the stack NMI-atomically, it's safe to use
@@ -342,39 +388,45 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
342 touched = 1; 388 touched = 1;
343 } 389 }
344 390
391 sum = get_timer_irqs(cpu);
392
393 if (__get_cpu_var(nmi_touch)) {
394 __get_cpu_var(nmi_touch) = 0;
395 touched = 1;
396 }
397
345 if (cpu_isset(cpu, backtrace_mask)) { 398 if (cpu_isset(cpu, backtrace_mask)) {
346 static DEFINE_SPINLOCK(lock); /* Serialise the printks */ 399 static DEFINE_SPINLOCK(lock); /* Serialise the printks */
347 400
348 spin_lock(&lock); 401 spin_lock(&lock);
349 printk("NMI backtrace for cpu %d\n", cpu); 402 printk(KERN_WARNING "NMI backtrace for cpu %d\n", cpu);
350 dump_stack(); 403 dump_stack();
351 spin_unlock(&lock); 404 spin_unlock(&lock);
352 cpu_clear(cpu, backtrace_mask); 405 cpu_clear(cpu, backtrace_mask);
353 } 406 }
354 407
355 /* 408 /* Could check oops_in_progress here too, but it's safer not to */
356 * Take the local apic timer and PIT/HPET into account. We don't 409 if (mce_in_progress())
357 * know which one is active, when we have highres/dyntick on 410 touched = 1;
358 */
359 sum = per_cpu(irq_stat, cpu).apic_timer_irqs +
360 per_cpu(irq_stat, cpu).irq0_irqs;
361 411
362 /* if the none of the timers isn't firing, this cpu isn't doing much */ 412 /* if the none of the timers isn't firing, this cpu isn't doing much */
363 if (!touched && last_irq_sums[cpu] == sum) { 413 if (!touched && __get_cpu_var(last_irq_sum) == sum) {
364 /* 414 /*
365 * Ayiee, looks like this CPU is stuck ... 415 * Ayiee, looks like this CPU is stuck ...
366 * wait a few IRQs (5 seconds) before doing the oops ... 416 * wait a few IRQs (5 seconds) before doing the oops ...
367 */ 417 */
368 alert_counter[cpu]++; 418 local_inc(&__get_cpu_var(alert_counter));
369 if (alert_counter[cpu] == 5*nmi_hz) 419 if (local_read(&__get_cpu_var(alert_counter)) == 5 * nmi_hz)
370 /* 420 /*
371 * die_nmi will return ONLY if NOTIFY_STOP happens.. 421 * die_nmi will return ONLY if NOTIFY_STOP happens..
372 */ 422 */
373 die_nmi(regs, "BUG: NMI Watchdog detected LOCKUP"); 423 die_nmi("BUG: NMI Watchdog detected LOCKUP",
424 regs, panic_on_timeout);
374 } else { 425 } else {
375 last_irq_sums[cpu] = sum; 426 __get_cpu_var(last_irq_sum) = sum;
376 alert_counter[cpu] = 0; 427 local_set(&__get_cpu_var(alert_counter), 0);
377 } 428 }
429
378 /* see if the nmi watchdog went off */ 430 /* see if the nmi watchdog went off */
379 if (!__get_cpu_var(wd_enabled)) 431 if (!__get_cpu_var(wd_enabled))
380 return rc; 432 return rc;
@@ -383,7 +435,8 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
383 rc |= lapic_wd_event(nmi_hz); 435 rc |= lapic_wd_event(nmi_hz);
384 break; 436 break;
385 case NMI_IO_APIC: 437 case NMI_IO_APIC:
386 /* don't know how to accurately check for this. 438 /*
439 * don't know how to accurately check for this.
387 * just assume it was a watchdog timer interrupt 440 * just assume it was a watchdog timer interrupt
388 * This matches the old behaviour. 441 * This matches the old behaviour.
389 */ 442 */
@@ -401,7 +454,7 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu)
401 char buf[64]; 454 char buf[64];
402 455
403 sprintf(buf, "NMI received for unknown reason %02x\n", reason); 456 sprintf(buf, "NMI received for unknown reason %02x\n", reason);
404 die_nmi(regs, buf); 457 die_nmi(buf, regs, 1); /* Always panic here */
405 return 0; 458 return 0;
406} 459}
407 460
@@ -419,32 +472,26 @@ int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file,
419 if (!!old_state == !!nmi_watchdog_enabled) 472 if (!!old_state == !!nmi_watchdog_enabled)
420 return 0; 473 return 0;
421 474
422 if (atomic_read(&nmi_active) < 0 || nmi_watchdog == NMI_DISABLED) { 475 if (atomic_read(&nmi_active) < 0 || !nmi_watchdog_active()) {
423 printk( KERN_WARNING "NMI watchdog is permanently disabled\n"); 476 printk(KERN_WARNING
477 "NMI watchdog is permanently disabled\n");
424 return -EIO; 478 return -EIO;
425 } 479 }
426 480
427 if (nmi_watchdog == NMI_DEFAULT) {
428 if (lapic_watchdog_ok())
429 nmi_watchdog = NMI_LOCAL_APIC;
430 else
431 nmi_watchdog = NMI_IO_APIC;
432 }
433
434 if (nmi_watchdog == NMI_LOCAL_APIC) { 481 if (nmi_watchdog == NMI_LOCAL_APIC) {
435 if (nmi_watchdog_enabled) 482 if (nmi_watchdog_enabled)
436 enable_lapic_nmi_watchdog(); 483 enable_lapic_nmi_watchdog();
437 else 484 else
438 disable_lapic_nmi_watchdog(); 485 disable_lapic_nmi_watchdog();
439 } else { 486 } else {
440 printk( KERN_WARNING 487 printk(KERN_WARNING
441 "NMI watchdog doesn't know what hardware to touch\n"); 488 "NMI watchdog doesn't know what hardware to touch\n");
442 return -EIO; 489 return -EIO;
443 } 490 }
444 return 0; 491 return 0;
445} 492}
446 493
447#endif 494#endif /* CONFIG_SYSCTL */
448 495
449int do_nmi_callback(struct pt_regs *regs, int cpu) 496int do_nmi_callback(struct pt_regs *regs, int cpu)
450{ 497{
@@ -467,6 +514,3 @@ void __trigger_all_cpu_backtrace(void)
467 mdelay(1); 514 mdelay(1);
468 } 515 }
469} 516}
470
471EXPORT_SYMBOL(nmi_active);
472EXPORT_SYMBOL(nmi_watchdog);
diff --git a/arch/x86/kernel/nmi_64.c b/arch/x86/kernel/nmi_64.c
deleted file mode 100644
index 5a29ded994fa..000000000000
--- a/arch/x86/kernel/nmi_64.c
+++ /dev/null
@@ -1,482 +0,0 @@
1/*
2 * NMI watchdog support on APIC systems
3 *
4 * Started by Ingo Molnar <mingo@redhat.com>
5 *
6 * Fixes:
7 * Mikael Pettersson : AMD K7 support for local APIC NMI watchdog.
8 * Mikael Pettersson : Power Management for local APIC NMI watchdog.
9 * Pavel Machek and
10 * Mikael Pettersson : PM converted to driver model. Disable/enable API.
11 */
12
13#include <linux/nmi.h>
14#include <linux/mm.h>
15#include <linux/delay.h>
16#include <linux/interrupt.h>
17#include <linux/module.h>
18#include <linux/sysdev.h>
19#include <linux/sysctl.h>
20#include <linux/kprobes.h>
21#include <linux/cpumask.h>
22#include <linux/kdebug.h>
23
24#include <asm/smp.h>
25#include <asm/nmi.h>
26#include <asm/proto.h>
27#include <asm/mce.h>
28
29#include <mach_traps.h>
30
31int unknown_nmi_panic;
32int nmi_watchdog_enabled;
33int panic_on_unrecovered_nmi;
34
35static cpumask_t backtrace_mask = CPU_MASK_NONE;
36
37/* nmi_active:
38 * >0: the lapic NMI watchdog is active, but can be disabled
39 * <0: the lapic NMI watchdog has not been set up, and cannot
40 * be enabled
41 * 0: the lapic NMI watchdog is disabled, but can be enabled
42 */
43atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */
44static int panic_on_timeout;
45
46unsigned int nmi_watchdog = NMI_DEFAULT;
47static unsigned int nmi_hz = HZ;
48
49static DEFINE_PER_CPU(short, wd_enabled);
50
51/* Run after command line and cpu_init init, but before all other checks */
52void nmi_watchdog_default(void)
53{
54 if (nmi_watchdog != NMI_DEFAULT)
55 return;
56 nmi_watchdog = NMI_NONE;
57}
58
59static int endflag __initdata = 0;
60
61#ifdef CONFIG_SMP
62/* The performance counters used by NMI_LOCAL_APIC don't trigger when
63 * the CPU is idle. To make sure the NMI watchdog really ticks on all
64 * CPUs during the test make them busy.
65 */
66static __init void nmi_cpu_busy(void *data)
67{
68 local_irq_enable_in_hardirq();
69 /* Intentionally don't use cpu_relax here. This is
70 to make sure that the performance counter really ticks,
71 even if there is a simulator or similar that catches the
72 pause instruction. On a real HT machine this is fine because
73 all other CPUs are busy with "useless" delay loops and don't
74 care if they get somewhat less cycles. */
75 while (endflag == 0)
76 mb();
77}
78#endif
79
80int __init check_nmi_watchdog(void)
81{
82 int *prev_nmi_count;
83 int cpu;
84
85 if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DISABLED))
86 return 0;
87
88 if (!atomic_read(&nmi_active))
89 return 0;
90
91 prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL);
92 if (!prev_nmi_count)
93 return -1;
94
95 printk(KERN_INFO "Testing NMI watchdog ... ");
96
97#ifdef CONFIG_SMP
98 if (nmi_watchdog == NMI_LOCAL_APIC)
99 smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0);
100#endif
101
102 for (cpu = 0; cpu < NR_CPUS; cpu++)
103 prev_nmi_count[cpu] = cpu_pda(cpu)->__nmi_count;
104 local_irq_enable();
105 mdelay((20*1000)/nmi_hz); // wait 20 ticks
106
107 for_each_online_cpu(cpu) {
108 if (!per_cpu(wd_enabled, cpu))
109 continue;
110 if (cpu_pda(cpu)->__nmi_count - prev_nmi_count[cpu] <= 5) {
111 printk(KERN_WARNING "WARNING: CPU#%d: NMI "
112 "appears to be stuck (%d->%d)!\n",
113 cpu,
114 prev_nmi_count[cpu],
115 cpu_pda(cpu)->__nmi_count);
116 per_cpu(wd_enabled, cpu) = 0;
117 atomic_dec(&nmi_active);
118 }
119 }
120 endflag = 1;
121 if (!atomic_read(&nmi_active)) {
122 kfree(prev_nmi_count);
123 atomic_set(&nmi_active, -1);
124 return -1;
125 }
126 printk("OK.\n");
127
128 /* now that we know it works we can reduce NMI frequency to
129 something more reasonable; makes a difference in some configs */
130 if (nmi_watchdog == NMI_LOCAL_APIC)
131 nmi_hz = lapic_adjust_nmi_hz(1);
132
133 kfree(prev_nmi_count);
134 return 0;
135}
136
137static int __init setup_nmi_watchdog(char *str)
138{
139 int nmi;
140
141 if (!strncmp(str,"panic",5)) {
142 panic_on_timeout = 1;
143 str = strchr(str, ',');
144 if (!str)
145 return 1;
146 ++str;
147 }
148
149 get_option(&str, &nmi);
150
151 if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE))
152 return 0;
153
154 nmi_watchdog = nmi;
155 return 1;
156}
157
158__setup("nmi_watchdog=", setup_nmi_watchdog);
159
160#ifdef CONFIG_PM
161
162static int nmi_pm_active; /* nmi_active before suspend */
163
164static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state)
165{
166 /* only CPU0 goes here, other CPUs should be offline */
167 nmi_pm_active = atomic_read(&nmi_active);
168 stop_apic_nmi_watchdog(NULL);
169 BUG_ON(atomic_read(&nmi_active) != 0);
170 return 0;
171}
172
173static int lapic_nmi_resume(struct sys_device *dev)
174{
175 /* only CPU0 goes here, other CPUs should be offline */
176 if (nmi_pm_active > 0) {
177 setup_apic_nmi_watchdog(NULL);
178 touch_nmi_watchdog();
179 }
180 return 0;
181}
182
183static struct sysdev_class nmi_sysclass = {
184 .name = "lapic_nmi",
185 .resume = lapic_nmi_resume,
186 .suspend = lapic_nmi_suspend,
187};
188
189static struct sys_device device_lapic_nmi = {
190 .id = 0,
191 .cls = &nmi_sysclass,
192};
193
194static int __init init_lapic_nmi_sysfs(void)
195{
196 int error;
197
198 /* should really be a BUG_ON but b/c this is an
199 * init call, it just doesn't work. -dcz
200 */
201 if (nmi_watchdog != NMI_LOCAL_APIC)
202 return 0;
203
204 if (atomic_read(&nmi_active) < 0)
205 return 0;
206
207 error = sysdev_class_register(&nmi_sysclass);
208 if (!error)
209 error = sysdev_register(&device_lapic_nmi);
210 return error;
211}
212/* must come after the local APIC's device_initcall() */
213late_initcall(init_lapic_nmi_sysfs);
214
215#endif /* CONFIG_PM */
216
217static void __acpi_nmi_enable(void *__unused)
218{
219 apic_write(APIC_LVT0, APIC_DM_NMI);
220}
221
222/*
223 * Enable timer based NMIs on all CPUs:
224 */
225void acpi_nmi_enable(void)
226{
227 if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
228 on_each_cpu(__acpi_nmi_enable, NULL, 0, 1);
229}
230
231static void __acpi_nmi_disable(void *__unused)
232{
233 apic_write(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED);
234}
235
236/*
237 * Disable timer based NMIs on all CPUs:
238 */
239void acpi_nmi_disable(void)
240{
241 if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
242 on_each_cpu(__acpi_nmi_disable, NULL, 0, 1);
243}
244
245void setup_apic_nmi_watchdog(void *unused)
246{
247 if (__get_cpu_var(wd_enabled))
248 return;
249
250 /* cheap hack to support suspend/resume */
251 /* if cpu0 is not active neither should the other cpus */
252 if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0))
253 return;
254
255 switch (nmi_watchdog) {
256 case NMI_LOCAL_APIC:
257 __get_cpu_var(wd_enabled) = 1;
258 if (lapic_watchdog_init(nmi_hz) < 0) {
259 __get_cpu_var(wd_enabled) = 0;
260 return;
261 }
262 /* FALL THROUGH */
263 case NMI_IO_APIC:
264 __get_cpu_var(wd_enabled) = 1;
265 atomic_inc(&nmi_active);
266 }
267}
268
269void stop_apic_nmi_watchdog(void *unused)
270{
271 /* only support LOCAL and IO APICs for now */
272 if ((nmi_watchdog != NMI_LOCAL_APIC) &&
273 (nmi_watchdog != NMI_IO_APIC))
274 return;
275 if (__get_cpu_var(wd_enabled) == 0)
276 return;
277 if (nmi_watchdog == NMI_LOCAL_APIC)
278 lapic_watchdog_stop();
279 __get_cpu_var(wd_enabled) = 0;
280 atomic_dec(&nmi_active);
281}
282
283/*
284 * the best way to detect whether a CPU has a 'hard lockup' problem
285 * is to check it's local APIC timer IRQ counts. If they are not
286 * changing then that CPU has some problem.
287 *
288 * as these watchdog NMI IRQs are generated on every CPU, we only
289 * have to check the current processor.
290 */
291
292static DEFINE_PER_CPU(unsigned, last_irq_sum);
293static DEFINE_PER_CPU(local_t, alert_counter);
294static DEFINE_PER_CPU(int, nmi_touch);
295
296void touch_nmi_watchdog(void)
297{
298 if (nmi_watchdog > 0) {
299 unsigned cpu;
300
301 /*
302 * Tell other CPUs to reset their alert counters. We cannot
303 * do it ourselves because the alert count increase is not
304 * atomic.
305 */
306 for_each_present_cpu(cpu) {
307 if (per_cpu(nmi_touch, cpu) != 1)
308 per_cpu(nmi_touch, cpu) = 1;
309 }
310 }
311
312 touch_softlockup_watchdog();
313}
314EXPORT_SYMBOL(touch_nmi_watchdog);
315
316notrace __kprobes int
317nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
318{
319 int sum;
320 int touched = 0;
321 int cpu = smp_processor_id();
322 int rc = 0;
323
324 /* check for other users first */
325 if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT)
326 == NOTIFY_STOP) {
327 rc = 1;
328 touched = 1;
329 }
330
331 sum = read_pda(apic_timer_irqs) + read_pda(irq0_irqs);
332 if (__get_cpu_var(nmi_touch)) {
333 __get_cpu_var(nmi_touch) = 0;
334 touched = 1;
335 }
336
337 if (cpu_isset(cpu, backtrace_mask)) {
338 static DEFINE_SPINLOCK(lock); /* Serialise the printks */
339
340 spin_lock(&lock);
341 printk("NMI backtrace for cpu %d\n", cpu);
342 dump_stack();
343 spin_unlock(&lock);
344 cpu_clear(cpu, backtrace_mask);
345 }
346
347#ifdef CONFIG_X86_MCE
348 /* Could check oops_in_progress here too, but it's safer
349 not too */
350 if (atomic_read(&mce_entry) > 0)
351 touched = 1;
352#endif
353 /* if the apic timer isn't firing, this cpu isn't doing much */
354 if (!touched && __get_cpu_var(last_irq_sum) == sum) {
355 /*
356 * Ayiee, looks like this CPU is stuck ...
357 * wait a few IRQs (5 seconds) before doing the oops ...
358 */
359 local_inc(&__get_cpu_var(alert_counter));
360 if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz)
361 die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs,
362 panic_on_timeout);
363 } else {
364 __get_cpu_var(last_irq_sum) = sum;
365 local_set(&__get_cpu_var(alert_counter), 0);
366 }
367
368 /* see if the nmi watchdog went off */
369 if (!__get_cpu_var(wd_enabled))
370 return rc;
371 switch (nmi_watchdog) {
372 case NMI_LOCAL_APIC:
373 rc |= lapic_wd_event(nmi_hz);
374 break;
375 case NMI_IO_APIC:
376 /* don't know how to accurately check for this.
377 * just assume it was a watchdog timer interrupt
378 * This matches the old behaviour.
379 */
380 rc = 1;
381 break;
382 }
383 return rc;
384}
385
386static unsigned ignore_nmis;
387
388asmlinkage notrace __kprobes void
389do_nmi(struct pt_regs *regs, long error_code)
390{
391 nmi_enter();
392 add_pda(__nmi_count,1);
393 if (!ignore_nmis)
394 default_do_nmi(regs);
395 nmi_exit();
396}
397
398void stop_nmi(void)
399{
400 acpi_nmi_disable();
401 ignore_nmis++;
402}
403
404void restart_nmi(void)
405{
406 ignore_nmis--;
407 acpi_nmi_enable();
408}
409
410#ifdef CONFIG_SYSCTL
411
412static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu)
413{
414 unsigned char reason = get_nmi_reason();
415 char buf[64];
416
417 sprintf(buf, "NMI received for unknown reason %02x\n", reason);
418 die_nmi(buf, regs, 1); /* Always panic here */
419 return 0;
420}
421
422/*
423 * proc handler for /proc/sys/kernel/nmi
424 */
425int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file,
426 void __user *buffer, size_t *length, loff_t *ppos)
427{
428 int old_state;
429
430 nmi_watchdog_enabled = (atomic_read(&nmi_active) > 0) ? 1 : 0;
431 old_state = nmi_watchdog_enabled;
432 proc_dointvec(table, write, file, buffer, length, ppos);
433 if (!!old_state == !!nmi_watchdog_enabled)
434 return 0;
435
436 if (atomic_read(&nmi_active) < 0 || nmi_watchdog == NMI_DISABLED) {
437 printk( KERN_WARNING "NMI watchdog is permanently disabled\n");
438 return -EIO;
439 }
440
441 /* if nmi_watchdog is not set yet, then set it */
442 nmi_watchdog_default();
443
444 if (nmi_watchdog == NMI_LOCAL_APIC) {
445 if (nmi_watchdog_enabled)
446 enable_lapic_nmi_watchdog();
447 else
448 disable_lapic_nmi_watchdog();
449 } else {
450 printk( KERN_WARNING
451 "NMI watchdog doesn't know what hardware to touch\n");
452 return -EIO;
453 }
454 return 0;
455}
456
457#endif
458
459int do_nmi_callback(struct pt_regs *regs, int cpu)
460{
461#ifdef CONFIG_SYSCTL
462 if (unknown_nmi_panic)
463 return unknown_nmi_panic_callback(regs, cpu);
464#endif
465 return 0;
466}
467
468void __trigger_all_cpu_backtrace(void)
469{
470 int i;
471
472 backtrace_mask = cpu_online_map;
473 /* Wait for up to 10 seconds for all CPUs to do the backtrace */
474 for (i = 0; i < 10 * 1000; i++) {
475 if (cpus_empty(backtrace_mask))
476 break;
477 mdelay(1);
478 }
479}
480
481EXPORT_SYMBOL(nmi_active);
482EXPORT_SYMBOL(nmi_watchdog);
diff --git a/arch/x86/kernel/numaq_32.c b/arch/x86/kernel/numaq_32.c
index e65281b1634b..a23e8233b9ac 100644
--- a/arch/x86/kernel/numaq_32.c
+++ b/arch/x86/kernel/numaq_32.c
@@ -31,6 +31,8 @@
31#include <asm/numaq.h> 31#include <asm/numaq.h>
32#include <asm/topology.h> 32#include <asm/topology.h>
33#include <asm/processor.h> 33#include <asm/processor.h>
34#include <asm/mpspec.h>
35#include <asm/e820.h>
34 36
35#define MB_TO_PAGES(addr) ((addr) << (20 - PAGE_SHIFT)) 37#define MB_TO_PAGES(addr) ((addr) << (20 - PAGE_SHIFT))
36 38
@@ -58,6 +60,8 @@ static void __init smp_dump_qct(void)
58 node_end_pfn[node] = MB_TO_PAGES( 60 node_end_pfn[node] = MB_TO_PAGES(
59 eq->hi_shrd_mem_start + eq->hi_shrd_mem_size); 61 eq->hi_shrd_mem_start + eq->hi_shrd_mem_size);
60 62
63 e820_register_active_regions(node, node_start_pfn[node],
64 node_end_pfn[node]);
61 memory_present(node, 65 memory_present(node,
62 node_start_pfn[node], node_end_pfn[node]); 66 node_start_pfn[node], node_end_pfn[node]);
63 node_remap_size[node] = node_memmap_size_bytes(node, 67 node_remap_size[node] = node_memmap_size_bytes(node,
@@ -67,23 +71,35 @@ static void __init smp_dump_qct(void)
67 } 71 }
68} 72}
69 73
70/* 74static __init void early_check_numaq(void)
71 * Unlike Summit, we don't really care to let the NUMA-Q 75{
72 * fall back to flat mode. Don't compile for NUMA-Q 76 /*
73 * unless you really need it! 77 * Find possible boot-time SMP configuration:
74 */ 78 */
79 early_find_smp_config();
80 /*
81 * get boot-time SMP configuration:
82 */
83 if (smp_found_config)
84 early_get_smp_config();
85}
86
75int __init get_memcfg_numaq(void) 87int __init get_memcfg_numaq(void)
76{ 88{
89 early_check_numaq();
90 if (!found_numaq)
91 return 0;
77 smp_dump_qct(); 92 smp_dump_qct();
78 return 1; 93 return 1;
79} 94}
80 95
81static int __init numaq_tsc_disable(void) 96void __init numaq_tsc_disable(void)
82{ 97{
98 if (!found_numaq)
99 return;
100
83 if (num_online_nodes() > 1) { 101 if (num_online_nodes() > 1) {
84 printk(KERN_DEBUG "NUMAQ: disabling TSC\n"); 102 printk(KERN_DEBUG "NUMAQ: disabling TSC\n");
85 setup_clear_cpu_cap(X86_FEATURE_TSC); 103 setup_clear_cpu_cap(X86_FEATURE_TSC);
86 } 104 }
87 return 0;
88} 105}
89arch_initcall(numaq_tsc_disable);
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 74f0c5ea2a03..e0f571d58c19 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -30,6 +30,7 @@
30#include <asm/setup.h> 30#include <asm/setup.h>
31#include <asm/arch_hooks.h> 31#include <asm/arch_hooks.h>
32#include <asm/time.h> 32#include <asm/time.h>
33#include <asm/pgalloc.h>
33#include <asm/irq.h> 34#include <asm/irq.h>
34#include <asm/delay.h> 35#include <asm/delay.h>
35#include <asm/fixmap.h> 36#include <asm/fixmap.h>
@@ -139,7 +140,9 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
139 /* If the operation is a nop, then nop the callsite */ 140 /* If the operation is a nop, then nop the callsite */
140 ret = paravirt_patch_nop(); 141 ret = paravirt_patch_nop();
141 else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) || 142 else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
142 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret)) 143 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) ||
144 type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret32) ||
145 type == PARAVIRT_PATCH(pv_cpu_ops.usergs_sysret64))
143 /* If operation requires a jmp, then jmp */ 146 /* If operation requires a jmp, then jmp */
144 ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len); 147 ret = paravirt_patch_jmp(insnbuf, opfunc, addr, len);
145 else 148 else
@@ -190,7 +193,9 @@ static void native_flush_tlb_single(unsigned long addr)
190 193
191/* These are in entry.S */ 194/* These are in entry.S */
192extern void native_iret(void); 195extern void native_iret(void);
193extern void native_irq_enable_syscall_ret(void); 196extern void native_irq_enable_sysexit(void);
197extern void native_usergs_sysret32(void);
198extern void native_usergs_sysret64(void);
194 199
195static int __init print_banner(void) 200static int __init print_banner(void)
196{ 201{
@@ -280,7 +285,7 @@ struct pv_time_ops pv_time_ops = {
280 .get_wallclock = native_get_wallclock, 285 .get_wallclock = native_get_wallclock,
281 .set_wallclock = native_set_wallclock, 286 .set_wallclock = native_set_wallclock,
282 .sched_clock = native_sched_clock, 287 .sched_clock = native_sched_clock,
283 .get_cpu_khz = native_calculate_cpu_khz, 288 .get_tsc_khz = native_calibrate_tsc,
284}; 289};
285 290
286struct pv_irq_ops pv_irq_ops = { 291struct pv_irq_ops pv_irq_ops = {
@@ -291,6 +296,9 @@ struct pv_irq_ops pv_irq_ops = {
291 .irq_enable = native_irq_enable, 296 .irq_enable = native_irq_enable,
292 .safe_halt = native_safe_halt, 297 .safe_halt = native_safe_halt,
293 .halt = native_halt, 298 .halt = native_halt,
299#ifdef CONFIG_X86_64
300 .adjust_exception_frame = paravirt_nop,
301#endif
294}; 302};
295 303
296struct pv_cpu_ops pv_cpu_ops = { 304struct pv_cpu_ops pv_cpu_ops = {
@@ -321,12 +329,23 @@ struct pv_cpu_ops pv_cpu_ops = {
321 .store_idt = native_store_idt, 329 .store_idt = native_store_idt,
322 .store_tr = native_store_tr, 330 .store_tr = native_store_tr,
323 .load_tls = native_load_tls, 331 .load_tls = native_load_tls,
332#ifdef CONFIG_X86_64
333 .load_gs_index = native_load_gs_index,
334#endif
324 .write_ldt_entry = native_write_ldt_entry, 335 .write_ldt_entry = native_write_ldt_entry,
325 .write_gdt_entry = native_write_gdt_entry, 336 .write_gdt_entry = native_write_gdt_entry,
326 .write_idt_entry = native_write_idt_entry, 337 .write_idt_entry = native_write_idt_entry,
327 .load_sp0 = native_load_sp0, 338 .load_sp0 = native_load_sp0,
328 339
329 .irq_enable_syscall_ret = native_irq_enable_syscall_ret, 340#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
341 .irq_enable_sysexit = native_irq_enable_sysexit,
342#endif
343#ifdef CONFIG_X86_64
344#ifdef CONFIG_IA32_EMULATION
345 .usergs_sysret32 = native_usergs_sysret32,
346#endif
347 .usergs_sysret64 = native_usergs_sysret64,
348#endif
330 .iret = native_iret, 349 .iret = native_iret,
331 .swapgs = native_swapgs, 350 .swapgs = native_swapgs,
332 351
@@ -366,6 +385,9 @@ struct pv_mmu_ops pv_mmu_ops = {
366 .flush_tlb_single = native_flush_tlb_single, 385 .flush_tlb_single = native_flush_tlb_single,
367 .flush_tlb_others = native_flush_tlb_others, 386 .flush_tlb_others = native_flush_tlb_others,
368 387
388 .pgd_alloc = __paravirt_pgd_alloc,
389 .pgd_free = paravirt_nop,
390
369 .alloc_pte = paravirt_nop, 391 .alloc_pte = paravirt_nop,
370 .alloc_pmd = paravirt_nop, 392 .alloc_pmd = paravirt_nop,
371 .alloc_pmd_clone = paravirt_nop, 393 .alloc_pmd_clone = paravirt_nop,
@@ -380,6 +402,9 @@ struct pv_mmu_ops pv_mmu_ops = {
380 .pte_update = paravirt_nop, 402 .pte_update = paravirt_nop,
381 .pte_update_defer = paravirt_nop, 403 .pte_update_defer = paravirt_nop,
382 404
405 .ptep_modify_prot_start = __ptep_modify_prot_start,
406 .ptep_modify_prot_commit = __ptep_modify_prot_commit,
407
383#ifdef CONFIG_HIGHPTE 408#ifdef CONFIG_HIGHPTE
384 .kmap_atomic_pte = kmap_atomic, 409 .kmap_atomic_pte = kmap_atomic,
385#endif 410#endif
@@ -403,6 +428,7 @@ struct pv_mmu_ops pv_mmu_ops = {
403#endif /* PAGETABLE_LEVELS >= 3 */ 428#endif /* PAGETABLE_LEVELS >= 3 */
404 429
405 .pte_val = native_pte_val, 430 .pte_val = native_pte_val,
431 .pte_flags = native_pte_val,
406 .pgd_val = native_pgd_val, 432 .pgd_val = native_pgd_val,
407 433
408 .make_pte = native_make_pte, 434 .make_pte = native_make_pte,
@@ -416,6 +442,8 @@ struct pv_mmu_ops pv_mmu_ops = {
416 .enter = paravirt_nop, 442 .enter = paravirt_nop,
417 .leave = paravirt_nop, 443 .leave = paravirt_nop,
418 }, 444 },
445
446 .set_fixmap = native_set_fixmap,
419}; 447};
420 448
421EXPORT_SYMBOL_GPL(pv_time_ops); 449EXPORT_SYMBOL_GPL(pv_time_ops);
diff --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c
index 82fc5fcab4f4..58262218781b 100644
--- a/arch/x86/kernel/paravirt_patch_32.c
+++ b/arch/x86/kernel/paravirt_patch_32.c
@@ -5,7 +5,7 @@ DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
5DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf"); 5DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf");
6DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax"); 6DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax");
7DEF_NATIVE(pv_cpu_ops, iret, "iret"); 7DEF_NATIVE(pv_cpu_ops, iret, "iret");
8DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "sti; sysexit"); 8DEF_NATIVE(pv_cpu_ops, irq_enable_sysexit, "sti; sysexit");
9DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax"); 9DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax");
10DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3"); 10DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3");
11DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax"); 11DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax");
@@ -29,7 +29,7 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
29 PATCH_SITE(pv_irq_ops, restore_fl); 29 PATCH_SITE(pv_irq_ops, restore_fl);
30 PATCH_SITE(pv_irq_ops, save_fl); 30 PATCH_SITE(pv_irq_ops, save_fl);
31 PATCH_SITE(pv_cpu_ops, iret); 31 PATCH_SITE(pv_cpu_ops, iret);
32 PATCH_SITE(pv_cpu_ops, irq_enable_syscall_ret); 32 PATCH_SITE(pv_cpu_ops, irq_enable_sysexit);
33 PATCH_SITE(pv_mmu_ops, read_cr2); 33 PATCH_SITE(pv_mmu_ops, read_cr2);
34 PATCH_SITE(pv_mmu_ops, read_cr3); 34 PATCH_SITE(pv_mmu_ops, read_cr3);
35 PATCH_SITE(pv_mmu_ops, write_cr3); 35 PATCH_SITE(pv_mmu_ops, write_cr3);
diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
index 7d904e138d7e..061d01df9ae6 100644
--- a/arch/x86/kernel/paravirt_patch_64.c
+++ b/arch/x86/kernel/paravirt_patch_64.c
@@ -14,8 +14,9 @@ DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
14DEF_NATIVE(pv_cpu_ops, clts, "clts"); 14DEF_NATIVE(pv_cpu_ops, clts, "clts");
15DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd"); 15DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd");
16 16
17/* the three commands give us more control to how to return from a syscall */ 17DEF_NATIVE(pv_cpu_ops, irq_enable_sysexit, "swapgs; sti; sysexit");
18DEF_NATIVE(pv_cpu_ops, irq_enable_syscall_ret, "movq %gs:" __stringify(pda_oldrsp) ", %rsp; swapgs; sysretq;"); 18DEF_NATIVE(pv_cpu_ops, usergs_sysret64, "swapgs; sysretq");
19DEF_NATIVE(pv_cpu_ops, usergs_sysret32, "swapgs; sysretl");
19DEF_NATIVE(pv_cpu_ops, swapgs, "swapgs"); 20DEF_NATIVE(pv_cpu_ops, swapgs, "swapgs");
20 21
21unsigned native_patch(u8 type, u16 clobbers, void *ibuf, 22unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
@@ -35,7 +36,9 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
35 PATCH_SITE(pv_irq_ops, irq_enable); 36 PATCH_SITE(pv_irq_ops, irq_enable);
36 PATCH_SITE(pv_irq_ops, irq_disable); 37 PATCH_SITE(pv_irq_ops, irq_disable);
37 PATCH_SITE(pv_cpu_ops, iret); 38 PATCH_SITE(pv_cpu_ops, iret);
38 PATCH_SITE(pv_cpu_ops, irq_enable_syscall_ret); 39 PATCH_SITE(pv_cpu_ops, irq_enable_sysexit);
40 PATCH_SITE(pv_cpu_ops, usergs_sysret32);
41 PATCH_SITE(pv_cpu_ops, usergs_sysret64);
39 PATCH_SITE(pv_cpu_ops, swapgs); 42 PATCH_SITE(pv_cpu_ops, swapgs);
40 PATCH_SITE(pv_mmu_ops, read_cr2); 43 PATCH_SITE(pv_mmu_ops, read_cr2);
41 PATCH_SITE(pv_mmu_ops, read_cr3); 44 PATCH_SITE(pv_mmu_ops, read_cr3);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index e28ec497e142..6959b5c45df4 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1394,7 +1394,7 @@ void __init detect_calgary(void)
1394 return; 1394 return;
1395 } 1395 }
1396 1396
1397 specified_table_size = determine_tce_table_size(end_pfn * PAGE_SIZE); 1397 specified_table_size = determine_tce_table_size(max_pfn * PAGE_SIZE);
1398 1398
1399 for (bus = 0; bus < MAX_PHB_BUS_NUM; bus++) { 1399 for (bus = 0; bus < MAX_PHB_BUS_NUM; bus++) {
1400 struct calgary_bus_info *info = &bus_info[bus]; 1400 struct calgary_bus_info *info = &bus_info[bus];
@@ -1459,7 +1459,7 @@ int __init calgary_iommu_init(void)
1459 if (ret) { 1459 if (ret) {
1460 printk(KERN_ERR "PCI-DMA: Calgary init failed %d, " 1460 printk(KERN_ERR "PCI-DMA: Calgary init failed %d, "
1461 "falling back to no_iommu\n", ret); 1461 "falling back to no_iommu\n", ret);
1462 if (end_pfn > MAX_DMA32_PFN) 1462 if (max_pfn > MAX_DMA32_PFN)
1463 printk(KERN_ERR "WARNING more than 4GB of memory, " 1463 printk(KERN_ERR "WARNING more than 4GB of memory, "
1464 "32bit PCI may malfunction.\n"); 1464 "32bit PCI may malfunction.\n");
1465 return ret; 1465 return ret;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index c5ef1af8e79d..8467ec2320f1 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -7,6 +7,7 @@
7#include <asm/dma.h> 7#include <asm/dma.h>
8#include <asm/gart.h> 8#include <asm/gart.h>
9#include <asm/calgary.h> 9#include <asm/calgary.h>
10#include <asm/amd_iommu.h>
10 11
11int forbid_dac __read_mostly; 12int forbid_dac __read_mostly;
12EXPORT_SYMBOL(forbid_dac); 13EXPORT_SYMBOL(forbid_dac);
@@ -74,13 +75,17 @@ early_param("dma32_size", parse_dma32_size_opt);
74void __init dma32_reserve_bootmem(void) 75void __init dma32_reserve_bootmem(void)
75{ 76{
76 unsigned long size, align; 77 unsigned long size, align;
77 if (end_pfn <= MAX_DMA32_PFN) 78 if (max_pfn <= MAX_DMA32_PFN)
78 return; 79 return;
79 80
81 /*
82 * check aperture_64.c allocate_aperture() for reason about
83 * using 512M as goal
84 */
80 align = 64ULL<<20; 85 align = 64ULL<<20;
81 size = round_up(dma32_bootmem_size, align); 86 size = round_up(dma32_bootmem_size, align);
82 dma32_bootmem_ptr = __alloc_bootmem_nopanic(size, align, 87 dma32_bootmem_ptr = __alloc_bootmem_nopanic(size, align,
83 __pa(MAX_DMA_ADDRESS)); 88 512ULL<<20);
84 if (dma32_bootmem_ptr) 89 if (dma32_bootmem_ptr)
85 dma32_bootmem_size = size; 90 dma32_bootmem_size = size;
86 else 91 else
@@ -88,17 +93,14 @@ void __init dma32_reserve_bootmem(void)
88} 93}
89static void __init dma32_free_bootmem(void) 94static void __init dma32_free_bootmem(void)
90{ 95{
91 int node;
92 96
93 if (end_pfn <= MAX_DMA32_PFN) 97 if (max_pfn <= MAX_DMA32_PFN)
94 return; 98 return;
95 99
96 if (!dma32_bootmem_ptr) 100 if (!dma32_bootmem_ptr)
97 return; 101 return;
98 102
99 for_each_online_node(node) 103 free_bootmem(__pa(dma32_bootmem_ptr), dma32_bootmem_size);
100 free_bootmem_node(NODE_DATA(node), __pa(dma32_bootmem_ptr),
101 dma32_bootmem_size);
102 104
103 dma32_bootmem_ptr = NULL; 105 dma32_bootmem_ptr = NULL;
104 dma32_bootmem_size = 0; 106 dma32_bootmem_size = 0;
@@ -122,6 +124,8 @@ void __init pci_iommu_alloc(void)
122 124
123 detect_intel_iommu(); 125 detect_intel_iommu();
124 126
127 amd_iommu_detect();
128
125#ifdef CONFIG_SWIOTLB 129#ifdef CONFIG_SWIOTLB
126 pci_swiotlb_init(); 130 pci_swiotlb_init();
127#endif 131#endif
@@ -357,7 +361,7 @@ int dma_supported(struct device *dev, u64 mask)
357EXPORT_SYMBOL(dma_supported); 361EXPORT_SYMBOL(dma_supported);
358 362
359/* Allocate DMA memory on node near device */ 363/* Allocate DMA memory on node near device */
360noinline struct page * 364static noinline struct page *
361dma_alloc_pages(struct device *dev, gfp_t gfp, unsigned order) 365dma_alloc_pages(struct device *dev, gfp_t gfp, unsigned order)
362{ 366{
363 int node; 367 int node;
@@ -378,6 +382,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
378 struct page *page; 382 struct page *page;
379 unsigned long dma_mask = 0; 383 unsigned long dma_mask = 0;
380 dma_addr_t bus; 384 dma_addr_t bus;
385 int noretry = 0;
381 386
382 /* ignore region specifiers */ 387 /* ignore region specifiers */
383 gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32); 388 gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -397,20 +402,25 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
397 if (dev->dma_mask == NULL) 402 if (dev->dma_mask == NULL)
398 return NULL; 403 return NULL;
399 404
400 /* Don't invoke OOM killer */ 405 /* Don't invoke OOM killer or retry in lower 16MB DMA zone */
401 gfp |= __GFP_NORETRY; 406 if (gfp & __GFP_DMA)
407 noretry = 1;
402 408
403#ifdef CONFIG_X86_64 409#ifdef CONFIG_X86_64
404 /* Why <=? Even when the mask is smaller than 4GB it is often 410 /* Why <=? Even when the mask is smaller than 4GB it is often
405 larger than 16MB and in this case we have a chance of 411 larger than 16MB and in this case we have a chance of
406 finding fitting memory in the next higher zone first. If 412 finding fitting memory in the next higher zone first. If
407 not retry with true GFP_DMA. -AK */ 413 not retry with true GFP_DMA. -AK */
408 if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA)) 414 if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA)) {
409 gfp |= GFP_DMA32; 415 gfp |= GFP_DMA32;
416 if (dma_mask < DMA_32BIT_MASK)
417 noretry = 1;
418 }
410#endif 419#endif
411 420
412 again: 421 again:
413 page = dma_alloc_pages(dev, gfp, get_order(size)); 422 page = dma_alloc_pages(dev,
423 noretry ? gfp | __GFP_NORETRY : gfp, get_order(size));
414 if (page == NULL) 424 if (page == NULL)
415 return NULL; 425 return NULL;
416 426
@@ -496,6 +506,8 @@ static int __init pci_iommu_init(void)
496 506
497 intel_iommu_init(); 507 intel_iommu_init();
498 508
509 amd_iommu_init();
510
499#ifdef CONFIG_GART_IOMMU 511#ifdef CONFIG_GART_IOMMU
500 gart_iommu_init(); 512 gart_iommu_init();
501#endif 513#endif
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index c07455d1695f..c3fe78406d18 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -26,6 +26,7 @@
26#include <linux/kdebug.h> 26#include <linux/kdebug.h>
27#include <linux/scatterlist.h> 27#include <linux/scatterlist.h>
28#include <linux/iommu-helper.h> 28#include <linux/iommu-helper.h>
29#include <linux/sysdev.h>
29#include <asm/atomic.h> 30#include <asm/atomic.h>
30#include <asm/io.h> 31#include <asm/io.h>
31#include <asm/mtrr.h> 32#include <asm/mtrr.h>
@@ -103,7 +104,6 @@ static unsigned long alloc_iommu(struct device *dev, int size)
103 size, base_index, boundary_size, 0); 104 size, base_index, boundary_size, 0);
104 } 105 }
105 if (offset != -1) { 106 if (offset != -1) {
106 set_bit_string(iommu_gart_bitmap, offset, size);
107 next_bit = offset+size; 107 next_bit = offset+size;
108 if (next_bit >= iommu_pages) { 108 if (next_bit >= iommu_pages) {
109 next_bit = 0; 109 next_bit = 0;
@@ -533,8 +533,8 @@ static __init unsigned read_aperture(struct pci_dev *dev, u32 *size)
533 unsigned aper_size = 0, aper_base_32, aper_order; 533 unsigned aper_size = 0, aper_base_32, aper_order;
534 u64 aper_base; 534 u64 aper_base;
535 535
536 pci_read_config_dword(dev, 0x94, &aper_base_32); 536 pci_read_config_dword(dev, AMD64_GARTAPERTUREBASE, &aper_base_32);
537 pci_read_config_dword(dev, 0x90, &aper_order); 537 pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &aper_order);
538 aper_order = (aper_order >> 1) & 7; 538 aper_order = (aper_order >> 1) & 7;
539 539
540 aper_base = aper_base_32 & 0x7fff; 540 aper_base = aper_base_32 & 0x7fff;
@@ -548,6 +548,77 @@ static __init unsigned read_aperture(struct pci_dev *dev, u32 *size)
548 return aper_base; 548 return aper_base;
549} 549}
550 550
551static void enable_gart_translations(void)
552{
553 int i;
554
555 for (i = 0; i < num_k8_northbridges; i++) {
556 struct pci_dev *dev = k8_northbridges[i];
557
558 enable_gart_translation(dev, __pa(agp_gatt_table));
559 }
560}
561
562/*
563 * If fix_up_north_bridges is set, the north bridges have to be fixed up on
564 * resume in the same way as they are handled in gart_iommu_hole_init().
565 */
566static bool fix_up_north_bridges;
567static u32 aperture_order;
568static u32 aperture_alloc;
569
570void set_up_gart_resume(u32 aper_order, u32 aper_alloc)
571{
572 fix_up_north_bridges = true;
573 aperture_order = aper_order;
574 aperture_alloc = aper_alloc;
575}
576
577static int gart_resume(struct sys_device *dev)
578{
579 printk(KERN_INFO "PCI-DMA: Resuming GART IOMMU\n");
580
581 if (fix_up_north_bridges) {
582 int i;
583
584 printk(KERN_INFO "PCI-DMA: Restoring GART aperture settings\n");
585
586 for (i = 0; i < num_k8_northbridges; i++) {
587 struct pci_dev *dev = k8_northbridges[i];
588
589 /*
590 * Don't enable translations just yet. That is the next
591 * step. Restore the pre-suspend aperture settings.
592 */
593 pci_write_config_dword(dev, AMD64_GARTAPERTURECTL,
594 aperture_order << 1);
595 pci_write_config_dword(dev, AMD64_GARTAPERTUREBASE,
596 aperture_alloc >> 25);
597 }
598 }
599
600 enable_gart_translations();
601
602 return 0;
603}
604
605static int gart_suspend(struct sys_device *dev, pm_message_t state)
606{
607 return 0;
608}
609
610static struct sysdev_class gart_sysdev_class = {
611 .name = "gart",
612 .suspend = gart_suspend,
613 .resume = gart_resume,
614
615};
616
617static struct sys_device device_gart = {
618 .id = 0,
619 .cls = &gart_sysdev_class,
620};
621
551/* 622/*
552 * Private Northbridge GATT initialization in case we cannot use the 623 * Private Northbridge GATT initialization in case we cannot use the
553 * AGP driver for some reason. 624 * AGP driver for some reason.
@@ -558,7 +629,8 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
558 unsigned aper_base, new_aper_base; 629 unsigned aper_base, new_aper_base;
559 struct pci_dev *dev; 630 struct pci_dev *dev;
560 void *gatt; 631 void *gatt;
561 int i; 632 int i, error;
633 unsigned long start_pfn, end_pfn;
562 634
563 printk(KERN_INFO "PCI-DMA: Disabling AGP.\n"); 635 printk(KERN_INFO "PCI-DMA: Disabling AGP.\n");
564 aper_size = aper_base = info->aper_size = 0; 636 aper_size = aper_base = info->aper_size = 0;
@@ -591,25 +663,25 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
591 memset(gatt, 0, gatt_size); 663 memset(gatt, 0, gatt_size);
592 agp_gatt_table = gatt; 664 agp_gatt_table = gatt;
593 665
594 for (i = 0; i < num_k8_northbridges; i++) { 666 enable_gart_translations();
595 u32 gatt_reg;
596 u32 ctl;
597 667
598 dev = k8_northbridges[i]; 668 error = sysdev_class_register(&gart_sysdev_class);
599 gatt_reg = __pa(gatt) >> 12; 669 if (!error)
600 gatt_reg <<= 4; 670 error = sysdev_register(&device_gart);
601 pci_write_config_dword(dev, 0x98, gatt_reg); 671 if (error)
602 pci_read_config_dword(dev, 0x90, &ctl); 672 panic("Could not register gart_sysdev -- would corrupt data on next suspend");
603
604 ctl |= 1;
605 ctl &= ~((1<<4) | (1<<5));
606 673
607 pci_write_config_dword(dev, 0x90, ctl);
608 }
609 flush_gart(); 674 flush_gart();
610 675
611 printk(KERN_INFO "PCI-DMA: aperture base @ %x size %u KB\n", 676 printk(KERN_INFO "PCI-DMA: aperture base @ %x size %u KB\n",
612 aper_base, aper_size>>10); 677 aper_base, aper_size>>10);
678
679 /* need to map that range */
680 end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);
681 if (end_pfn > max_low_pfn_mapped) {
682 start_pfn = (aper_base>>PAGE_SHIFT);
683 init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
684 }
613 return 0; 685 return 0;
614 686
615 nommu: 687 nommu:
@@ -648,11 +720,11 @@ void gart_iommu_shutdown(void)
648 u32 ctl; 720 u32 ctl;
649 721
650 dev = k8_northbridges[i]; 722 dev = k8_northbridges[i];
651 pci_read_config_dword(dev, 0x90, &ctl); 723 pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl);
652 724
653 ctl &= ~1; 725 ctl &= ~GARTEN;
654 726
655 pci_write_config_dword(dev, 0x90, ctl); 727 pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl);
656 } 728 }
657} 729}
658 730
@@ -687,10 +759,10 @@ void __init gart_iommu_init(void)
687 return; 759 return;
688 760
689 if (no_iommu || 761 if (no_iommu ||
690 (!force_iommu && end_pfn <= MAX_DMA32_PFN) || 762 (!force_iommu && max_pfn <= MAX_DMA32_PFN) ||
691 !gart_iommu_aperture || 763 !gart_iommu_aperture ||
692 (no_agp && init_k8_gatt(&info) < 0)) { 764 (no_agp && init_k8_gatt(&info) < 0)) {
693 if (end_pfn > MAX_DMA32_PFN) { 765 if (max_pfn > MAX_DMA32_PFN) {
694 printk(KERN_WARNING "More than 4GB of memory " 766 printk(KERN_WARNING "More than 4GB of memory "
695 "but GART IOMMU not available.\n" 767 "but GART IOMMU not available.\n"
696 KERN_WARNING "falling back to iommu=soft.\n"); 768 KERN_WARNING "falling back to iommu=soft.\n");
@@ -759,10 +831,10 @@ void __init gart_iommu_init(void)
759 wbinvd(); 831 wbinvd();
760 832
761 /* 833 /*
762 * Try to workaround a bug (thanks to BenH) 834 * Try to workaround a bug (thanks to BenH):
763 * Set unmapped entries to a scratch page instead of 0. 835 * Set unmapped entries to a scratch page instead of 0.
764 * Any prefetches that hit unmapped entries won't get an bus abort 836 * Any prefetches that hit unmapped entries won't get an bus abort
765 * then. 837 * then. (P2P bridge may be prefetching on DMA reads).
766 */ 838 */
767 scratch = get_zeroed_page(GFP_KERNEL); 839 scratch = get_zeroed_page(GFP_KERNEL);
768 if (!scratch) 840 if (!scratch)
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 490da7f4b8d0..82299cd1d04d 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -38,7 +38,7 @@ const struct dma_mapping_ops swiotlb_dma_ops = {
38void __init pci_swiotlb_init(void) 38void __init pci_swiotlb_init(void)
39{ 39{
40 /* don't initialize swiotlb if iommu=off (no_iommu=1) */ 40 /* don't initialize swiotlb if iommu=off (no_iommu=1) */
41 if (!iommu_detected && !no_iommu && end_pfn > MAX_DMA32_PFN) 41 if (!iommu_detected && !no_iommu && max_pfn > MAX_DMA32_PFN)
42 swiotlb = 1; 42 swiotlb = 1;
43 if (swiotlb_force) 43 if (swiotlb_force)
44 swiotlb = 1; 44 swiotlb = 1;
diff --git a/arch/x86/kernel/probe_roms_32.c b/arch/x86/kernel/probe_roms_32.c
new file mode 100644
index 000000000000..675a48c404a5
--- /dev/null
+++ b/arch/x86/kernel/probe_roms_32.c
@@ -0,0 +1,166 @@
1#include <linux/sched.h>
2#include <linux/mm.h>
3#include <linux/uaccess.h>
4#include <linux/mmzone.h>
5#include <linux/ioport.h>
6#include <linux/seq_file.h>
7#include <linux/console.h>
8#include <linux/init.h>
9#include <linux/edd.h>
10#include <linux/dmi.h>
11#include <linux/pfn.h>
12#include <linux/pci.h>
13#include <asm/pci-direct.h>
14
15
16#include <asm/e820.h>
17#include <asm/mmzone.h>
18#include <asm/setup.h>
19#include <asm/sections.h>
20#include <asm/io.h>
21#include <setup_arch.h>
22
23static struct resource system_rom_resource = {
24 .name = "System ROM",
25 .start = 0xf0000,
26 .end = 0xfffff,
27 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
28};
29
30static struct resource extension_rom_resource = {
31 .name = "Extension ROM",
32 .start = 0xe0000,
33 .end = 0xeffff,
34 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
35};
36
37static struct resource adapter_rom_resources[] = { {
38 .name = "Adapter ROM",
39 .start = 0xc8000,
40 .end = 0,
41 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
42}, {
43 .name = "Adapter ROM",
44 .start = 0,
45 .end = 0,
46 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
47}, {
48 .name = "Adapter ROM",
49 .start = 0,
50 .end = 0,
51 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
52}, {
53 .name = "Adapter ROM",
54 .start = 0,
55 .end = 0,
56 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
57}, {
58 .name = "Adapter ROM",
59 .start = 0,
60 .end = 0,
61 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
62}, {
63 .name = "Adapter ROM",
64 .start = 0,
65 .end = 0,
66 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
67} };
68
69static struct resource video_rom_resource = {
70 .name = "Video ROM",
71 .start = 0xc0000,
72 .end = 0xc7fff,
73 .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
74};
75
76#define ROMSIGNATURE 0xaa55
77
78static int __init romsignature(const unsigned char *rom)
79{
80 const unsigned short * const ptr = (const unsigned short *)rom;
81 unsigned short sig;
82
83 return probe_kernel_address(ptr, sig) == 0 && sig == ROMSIGNATURE;
84}
85
86static int __init romchecksum(const unsigned char *rom, unsigned long length)
87{
88 unsigned char sum, c;
89
90 for (sum = 0; length && probe_kernel_address(rom++, c) == 0; length--)
91 sum += c;
92 return !length && !sum;
93}
94
95void __init probe_roms(void)
96{
97 const unsigned char *rom;
98 unsigned long start, length, upper;
99 unsigned char c;
100 int i;
101
102 /* video rom */
103 upper = adapter_rom_resources[0].start;
104 for (start = video_rom_resource.start; start < upper; start += 2048) {
105 rom = isa_bus_to_virt(start);
106 if (!romsignature(rom))
107 continue;
108
109 video_rom_resource.start = start;
110
111 if (probe_kernel_address(rom + 2, c) != 0)
112 continue;
113
114 /* 0 < length <= 0x7f * 512, historically */
115 length = c * 512;
116
117 /* if checksum okay, trust length byte */
118 if (length && romchecksum(rom, length))
119 video_rom_resource.end = start + length - 1;
120
121 request_resource(&iomem_resource, &video_rom_resource);
122 break;
123 }
124
125 start = (video_rom_resource.end + 1 + 2047) & ~2047UL;
126 if (start < upper)
127 start = upper;
128
129 /* system rom */
130 request_resource(&iomem_resource, &system_rom_resource);
131 upper = system_rom_resource.start;
132
133 /* check for extension rom (ignore length byte!) */
134 rom = isa_bus_to_virt(extension_rom_resource.start);
135 if (romsignature(rom)) {
136 length = extension_rom_resource.end - extension_rom_resource.start + 1;
137 if (romchecksum(rom, length)) {
138 request_resource(&iomem_resource, &extension_rom_resource);
139 upper = extension_rom_resource.start;
140 }
141 }
142
143 /* check for adapter roms on 2k boundaries */
144 for (i = 0; i < ARRAY_SIZE(adapter_rom_resources) && start < upper; start += 2048) {
145 rom = isa_bus_to_virt(start);
146 if (!romsignature(rom))
147 continue;
148
149 if (probe_kernel_address(rom + 2, c) != 0)
150 continue;
151
152 /* 0 < length <= 0x7f * 512, historically */
153 length = c * 512;
154
155 /* but accept any length that fits if checksum okay */
156 if (!length || start + length > upper || !romchecksum(rom, length))
157 continue;
158
159 adapter_rom_resources[i].start = start;
160 adapter_rom_resources[i].end = start + length - 1;
161 request_resource(&iomem_resource, &adapter_rom_resources[i]);
162
163 start = adapter_rom_resources[i++].end & ~2047UL;
164 }
165}
166
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index ba370dc8685b..4d629c62f4f8 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -6,6 +6,13 @@
6#include <linux/sched.h> 6#include <linux/sched.h>
7#include <linux/module.h> 7#include <linux/module.h>
8#include <linux/pm.h> 8#include <linux/pm.h>
9#include <linux/clockchips.h>
10#include <asm/system.h>
11
12unsigned long idle_halt;
13EXPORT_SYMBOL(idle_halt);
14unsigned long idle_nomwait;
15EXPORT_SYMBOL(idle_nomwait);
9 16
10struct kmem_cache *task_xstate_cachep; 17struct kmem_cache *task_xstate_cachep;
11 18
@@ -45,6 +52,76 @@ void arch_task_cache_init(void)
45 SLAB_PANIC, NULL); 52 SLAB_PANIC, NULL);
46} 53}
47 54
55/*
56 * Idle related variables and functions
57 */
58unsigned long boot_option_idle_override = 0;
59EXPORT_SYMBOL(boot_option_idle_override);
60
61/*
62 * Powermanagement idle function, if any..
63 */
64void (*pm_idle)(void);
65EXPORT_SYMBOL(pm_idle);
66
67#ifdef CONFIG_X86_32
68/*
69 * This halt magic was a workaround for ancient floppy DMA
70 * wreckage. It should be safe to remove.
71 */
72static int hlt_counter;
73void disable_hlt(void)
74{
75 hlt_counter++;
76}
77EXPORT_SYMBOL(disable_hlt);
78
79void enable_hlt(void)
80{
81 hlt_counter--;
82}
83EXPORT_SYMBOL(enable_hlt);
84
85static inline int hlt_use_halt(void)
86{
87 return (!hlt_counter && boot_cpu_data.hlt_works_ok);
88}
89#else
90static inline int hlt_use_halt(void)
91{
92 return 1;
93}
94#endif
95
96/*
97 * We use this if we don't have any better
98 * idle routine..
99 */
100void default_idle(void)
101{
102 if (hlt_use_halt()) {
103 current_thread_info()->status &= ~TS_POLLING;
104 /*
105 * TS_POLLING-cleared state must be visible before we
106 * test NEED_RESCHED:
107 */
108 smp_mb();
109
110 if (!need_resched())
111 safe_halt(); /* enables interrupts racelessly */
112 else
113 local_irq_enable();
114 current_thread_info()->status |= TS_POLLING;
115 } else {
116 local_irq_enable();
117 /* loop is done by the caller */
118 cpu_relax();
119 }
120}
121#ifdef CONFIG_APM_MODULE
122EXPORT_SYMBOL(default_idle);
123#endif
124
48static void do_nothing(void *unused) 125static void do_nothing(void *unused)
49{ 126{
50} 127}
@@ -61,7 +138,7 @@ void cpu_idle_wait(void)
61{ 138{
62 smp_mb(); 139 smp_mb();
63 /* kick all the CPUs so that they exit out of pm_idle */ 140 /* kick all the CPUs so that they exit out of pm_idle */
64 smp_call_function(do_nothing, NULL, 0, 1); 141 smp_call_function(do_nothing, NULL, 1);
65} 142}
66EXPORT_SYMBOL_GPL(cpu_idle_wait); 143EXPORT_SYMBOL_GPL(cpu_idle_wait);
67 144
@@ -122,44 +199,129 @@ static void poll_idle(void)
122 * 199 *
123 * idle=mwait overrides this decision and forces the usage of mwait. 200 * idle=mwait overrides this decision and forces the usage of mwait.
124 */ 201 */
202
203#define MWAIT_INFO 0x05
204#define MWAIT_ECX_EXTENDED_INFO 0x01
205#define MWAIT_EDX_C1 0xf0
206
125static int __cpuinit mwait_usable(const struct cpuinfo_x86 *c) 207static int __cpuinit mwait_usable(const struct cpuinfo_x86 *c)
126{ 208{
209 u32 eax, ebx, ecx, edx;
210
127 if (force_mwait) 211 if (force_mwait)
128 return 1; 212 return 1;
129 213
130 if (c->x86_vendor == X86_VENDOR_AMD) { 214 if (c->cpuid_level < MWAIT_INFO)
131 switch(c->x86) { 215 return 0;
132 case 0x10: 216
133 case 0x11: 217 cpuid(MWAIT_INFO, &eax, &ebx, &ecx, &edx);
134 return 0; 218 /* Check, whether EDX has extended info about MWAIT */
135 } 219 if (!(ecx & MWAIT_ECX_EXTENDED_INFO))
136 } 220 return 1;
221
222 /*
223 * edx enumeratios MONITOR/MWAIT extensions. Check, whether
224 * C1 supports MWAIT
225 */
226 return (edx & MWAIT_EDX_C1);
227}
228
229/*
230 * Check for AMD CPUs, which have potentially C1E support
231 */
232static int __cpuinit check_c1e_idle(const struct cpuinfo_x86 *c)
233{
234 if (c->x86_vendor != X86_VENDOR_AMD)
235 return 0;
236
237 if (c->x86 < 0x0F)
238 return 0;
239
240 /* Family 0x0f models < rev F do not have C1E */
241 if (c->x86 == 0x0f && c->x86_model < 0x40)
242 return 0;
243
137 return 1; 244 return 1;
138} 245}
139 246
140void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c) 247/*
248 * C1E aware idle routine. We check for C1E active in the interrupt
249 * pending message MSR. If we detect C1E, then we handle it the same
250 * way as C3 power states (local apic timer and TSC stop)
251 */
252static void c1e_idle(void)
141{ 253{
142 static int selected; 254 static cpumask_t c1e_mask = CPU_MASK_NONE;
255 static int c1e_detected;
143 256
144 if (selected) 257 if (need_resched())
145 return; 258 return;
259
260 if (!c1e_detected) {
261 u32 lo, hi;
262
263 rdmsr(MSR_K8_INT_PENDING_MSG, lo, hi);
264 if (lo & K8_INTP_C1E_ACTIVE_MASK) {
265 c1e_detected = 1;
266 mark_tsc_unstable("TSC halt in C1E");
267 printk(KERN_INFO "System has C1E enabled\n");
268 }
269 }
270
271 if (c1e_detected) {
272 int cpu = smp_processor_id();
273
274 if (!cpu_isset(cpu, c1e_mask)) {
275 cpu_set(cpu, c1e_mask);
276 /*
277 * Force broadcast so ACPI can not interfere. Needs
278 * to run with interrupts enabled as it uses
279 * smp_function_call.
280 */
281 local_irq_enable();
282 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
283 &cpu);
284 printk(KERN_INFO "Switch to broadcast mode on CPU%d\n",
285 cpu);
286 local_irq_disable();
287 }
288 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
289
290 default_idle();
291
292 /*
293 * The switch back from broadcast mode needs to be
294 * called with interrupts disabled.
295 */
296 local_irq_disable();
297 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
298 local_irq_enable();
299 } else
300 default_idle();
301}
302
303void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
304{
146#ifdef CONFIG_X86_SMP 305#ifdef CONFIG_X86_SMP
147 if (pm_idle == poll_idle && smp_num_siblings > 1) { 306 if (pm_idle == poll_idle && smp_num_siblings > 1) {
148 printk(KERN_WARNING "WARNING: polling idle and HT enabled," 307 printk(KERN_WARNING "WARNING: polling idle and HT enabled,"
149 " performance may degrade.\n"); 308 " performance may degrade.\n");
150 } 309 }
151#endif 310#endif
311 if (pm_idle)
312 return;
313
152 if (cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)) { 314 if (cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)) {
153 /* 315 /*
154 * Skip, if setup has overridden idle.
155 * One CPU supports mwait => All CPUs supports mwait 316 * One CPU supports mwait => All CPUs supports mwait
156 */ 317 */
157 if (!pm_idle) { 318 printk(KERN_INFO "using mwait in idle threads.\n");
158 printk(KERN_INFO "using mwait in idle threads.\n"); 319 pm_idle = mwait_idle;
159 pm_idle = mwait_idle; 320 } else if (check_c1e_idle(c)) {
160 } 321 printk(KERN_INFO "using C1E aware idle routine\n");
161 } 322 pm_idle = c1e_idle;
162 selected = 1; 323 } else
324 pm_idle = default_idle;
163} 325}
164 326
165static int __init idle_setup(char *str) 327static int __init idle_setup(char *str)
@@ -169,7 +331,27 @@ static int __init idle_setup(char *str)
169 pm_idle = poll_idle; 331 pm_idle = poll_idle;
170 } else if (!strcmp(str, "mwait")) 332 } else if (!strcmp(str, "mwait"))
171 force_mwait = 1; 333 force_mwait = 1;
172 else 334 else if (!strcmp(str, "halt")) {
335 /*
336 * When the boot option of idle=halt is added, halt is
337 * forced to be used for CPU idle. In such case CPU C2/C3
338 * won't be used again.
339 * To continue to load the CPU idle driver, don't touch
340 * the boot_option_idle_override.
341 */
342 pm_idle = default_idle;
343 idle_halt = 1;
344 return 0;
345 } else if (!strcmp(str, "nomwait")) {
346 /*
347 * If the boot option of "idle=nomwait" is added,
348 * it means that mwait will be disabled for CPU C2/C3
349 * states. In such case it won't touch the variable
350 * of boot_option_idle_override.
351 */
352 idle_nomwait = 1;
353 return 0;
354 } else
173 return -1; 355 return -1;
174 356
175 boot_option_idle_override = 1; 357 boot_option_idle_override = 1;
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 1f5fa1cf16dd..53bc653ed5ca 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -58,11 +58,6 @@
58 58
59asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); 59asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
60 60
61static int hlt_counter;
62
63unsigned long boot_option_idle_override = 0;
64EXPORT_SYMBOL(boot_option_idle_override);
65
66DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task; 61DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task;
67EXPORT_PER_CPU_SYMBOL(current_task); 62EXPORT_PER_CPU_SYMBOL(current_task);
68 63
@@ -77,57 +72,24 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
77 return ((unsigned long *)tsk->thread.sp)[3]; 72 return ((unsigned long *)tsk->thread.sp)[3];
78} 73}
79 74
80/* 75#ifdef CONFIG_HOTPLUG_CPU
81 * Powermanagement idle function, if any.. 76#include <asm/nmi.h>
82 */
83void (*pm_idle)(void);
84EXPORT_SYMBOL(pm_idle);
85 77
86void disable_hlt(void) 78static void cpu_exit_clear(void)
87{ 79{
88 hlt_counter++; 80 int cpu = raw_smp_processor_id();
89}
90 81
91EXPORT_SYMBOL(disable_hlt); 82 idle_task_exit();
92 83
93void enable_hlt(void) 84 cpu_uninit();
94{ 85 irq_ctx_exit(cpu);
95 hlt_counter--;
96}
97 86
98EXPORT_SYMBOL(enable_hlt); 87 cpu_clear(cpu, cpu_callout_map);
88 cpu_clear(cpu, cpu_callin_map);
99 89
100/* 90 numa_remove_cpu(cpu);
101 * We use this if we don't have any better
102 * idle routine..
103 */
104void default_idle(void)
105{
106 if (!hlt_counter && boot_cpu_data.hlt_works_ok) {
107 current_thread_info()->status &= ~TS_POLLING;
108 /*
109 * TS_POLLING-cleared state must be visible before we
110 * test NEED_RESCHED:
111 */
112 smp_mb();
113
114 if (!need_resched())
115 safe_halt(); /* enables interrupts racelessly */
116 else
117 local_irq_enable();
118 current_thread_info()->status |= TS_POLLING;
119 } else {
120 local_irq_enable();
121 /* loop is done by the caller */
122 cpu_relax();
123 }
124} 91}
125#ifdef CONFIG_APM_MODULE
126EXPORT_SYMBOL(default_idle);
127#endif
128 92
129#ifdef CONFIG_HOTPLUG_CPU
130#include <asm/nmi.h>
131/* We don't actually take CPU down, just spin without interrupts. */ 93/* We don't actually take CPU down, just spin without interrupts. */
132static inline void play_dead(void) 94static inline void play_dead(void)
133{ 95{
@@ -168,24 +130,22 @@ void cpu_idle(void)
168 while (1) { 130 while (1) {
169 tick_nohz_stop_sched_tick(1); 131 tick_nohz_stop_sched_tick(1);
170 while (!need_resched()) { 132 while (!need_resched()) {
171 void (*idle)(void);
172 133
173 check_pgt_cache(); 134 check_pgt_cache();
174 rmb(); 135 rmb();
175 idle = pm_idle;
176 136
177 if (rcu_pending(cpu)) 137 if (rcu_pending(cpu))
178 rcu_check_callbacks(cpu, 0); 138 rcu_check_callbacks(cpu, 0);
179 139
180 if (!idle)
181 idle = default_idle;
182
183 if (cpu_is_offline(cpu)) 140 if (cpu_is_offline(cpu))
184 play_dead(); 141 play_dead();
185 142
186 local_irq_disable(); 143 local_irq_disable();
187 __get_cpu_var(irq_stat).idle_timestamp = jiffies; 144 __get_cpu_var(irq_stat).idle_timestamp = jiffies;
188 idle(); 145 /* Don't trace irqs off for idle */
146 stop_critical_timings();
147 pm_idle();
148 start_critical_timings();
189 } 149 }
190 tick_nohz_restart_sched_tick(); 150 tick_nohz_restart_sched_tick();
191 preempt_enable_no_resched(); 151 preempt_enable_no_resched();
@@ -333,6 +293,7 @@ void flush_thread(void)
333 /* 293 /*
334 * Forget coprocessor state.. 294 * Forget coprocessor state..
335 */ 295 */
296 tsk->fpu_counter = 0;
336 clear_fpu(tsk); 297 clear_fpu(tsk);
337 clear_used_math(); 298 clear_used_math();
338} 299}
@@ -649,8 +610,11 @@ struct task_struct * __switch_to(struct task_struct *prev_p, struct task_struct
649 /* If the task has used fpu the last 5 timeslices, just do a full 610 /* If the task has used fpu the last 5 timeslices, just do a full
650 * restore of the math state immediately to avoid the trap; the 611 * restore of the math state immediately to avoid the trap; the
651 * chances of needing FPU soon are obviously high now 612 * chances of needing FPU soon are obviously high now
613 *
614 * tsk_used_math() checks prevent calling math_state_restore(),
615 * which can sleep in the case of !tsk_used_math()
652 */ 616 */
653 if (next_p->fpu_counter > 5) 617 if (tsk_used_math(next_p) && next_p->fpu_counter > 5)
654 math_state_restore(); 618 math_state_restore();
655 619
656 /* 620 /*
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index c0a5c2a687e6..9a10c1897921 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -56,15 +56,6 @@ asmlinkage extern void ret_from_fork(void);
56 56
57unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED; 57unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED;
58 58
59unsigned long boot_option_idle_override = 0;
60EXPORT_SYMBOL(boot_option_idle_override);
61
62/*
63 * Powermanagement idle function, if any..
64 */
65void (*pm_idle)(void);
66EXPORT_SYMBOL(pm_idle);
67
68static ATOMIC_NOTIFIER_HEAD(idle_notifier); 59static ATOMIC_NOTIFIER_HEAD(idle_notifier);
69 60
70void idle_notifier_register(struct notifier_block *n) 61void idle_notifier_register(struct notifier_block *n)
@@ -94,25 +85,6 @@ void exit_idle(void)
94 __exit_idle(); 85 __exit_idle();
95} 86}
96 87
97/*
98 * We use this if we don't have any better
99 * idle routine..
100 */
101void default_idle(void)
102{
103 current_thread_info()->status &= ~TS_POLLING;
104 /*
105 * TS_POLLING-cleared state must be visible before we
106 * test NEED_RESCHED:
107 */
108 smp_mb();
109 if (!need_resched())
110 safe_halt(); /* enables interrupts racelessly */
111 else
112 local_irq_enable();
113 current_thread_info()->status |= TS_POLLING;
114}
115
116#ifdef CONFIG_HOTPLUG_CPU 88#ifdef CONFIG_HOTPLUG_CPU
117DECLARE_PER_CPU(int, cpu_state); 89DECLARE_PER_CPU(int, cpu_state);
118 90
@@ -150,12 +122,9 @@ void cpu_idle(void)
150 while (1) { 122 while (1) {
151 tick_nohz_stop_sched_tick(1); 123 tick_nohz_stop_sched_tick(1);
152 while (!need_resched()) { 124 while (!need_resched()) {
153 void (*idle)(void);
154 125
155 rmb(); 126 rmb();
156 idle = pm_idle; 127
157 if (!idle)
158 idle = default_idle;
159 if (cpu_is_offline(smp_processor_id())) 128 if (cpu_is_offline(smp_processor_id()))
160 play_dead(); 129 play_dead();
161 /* 130 /*
@@ -165,7 +134,10 @@ void cpu_idle(void)
165 */ 134 */
166 local_irq_disable(); 135 local_irq_disable();
167 enter_idle(); 136 enter_idle();
168 idle(); 137 /* Don't trace irqs off for idle */
138 stop_critical_timings();
139 pm_idle();
140 start_critical_timings();
169 /* In many cases the interrupt that ended idle 141 /* In many cases the interrupt that ended idle
170 has already called exit_idle. But some idle 142 has already called exit_idle. But some idle
171 loops can be woken up without interrupt. */ 143 loops can be woken up without interrupt. */
@@ -294,6 +266,7 @@ void flush_thread(void)
294 /* 266 /*
295 * Forget coprocessor state.. 267 * Forget coprocessor state..
296 */ 268 */
269 tsk->fpu_counter = 0;
297 clear_fpu(tsk); 270 clear_fpu(tsk);
298 clear_used_math(); 271 clear_used_math();
299} 272}
@@ -365,10 +338,10 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
365 p->thread.fs = me->thread.fs; 338 p->thread.fs = me->thread.fs;
366 p->thread.gs = me->thread.gs; 339 p->thread.gs = me->thread.gs;
367 340
368 asm("mov %%gs,%0" : "=m" (p->thread.gsindex)); 341 savesegment(gs, p->thread.gsindex);
369 asm("mov %%fs,%0" : "=m" (p->thread.fsindex)); 342 savesegment(fs, p->thread.fsindex);
370 asm("mov %%es,%0" : "=m" (p->thread.es)); 343 savesegment(es, p->thread.es);
371 asm("mov %%ds,%0" : "=m" (p->thread.ds)); 344 savesegment(ds, p->thread.ds);
372 345
373 if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) { 346 if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
374 p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL); 347 p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
@@ -407,7 +380,9 @@ out:
407void 380void
408start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp) 381start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
409{ 382{
410 asm volatile("movl %0, %%fs; movl %0, %%es; movl %0, %%ds" :: "r"(0)); 383 loadsegment(fs, 0);
384 loadsegment(es, 0);
385 loadsegment(ds, 0);
411 load_gs_index(0); 386 load_gs_index(0);
412 regs->ip = new_ip; 387 regs->ip = new_ip;
413 regs->sp = new_sp; 388 regs->sp = new_sp;
@@ -566,6 +541,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
566 *next = &next_p->thread; 541 *next = &next_p->thread;
567 int cpu = smp_processor_id(); 542 int cpu = smp_processor_id();
568 struct tss_struct *tss = &per_cpu(init_tss, cpu); 543 struct tss_struct *tss = &per_cpu(init_tss, cpu);
544 unsigned fsindex, gsindex;
569 545
570 /* we're going to use this soon, after a few expensive things */ 546 /* we're going to use this soon, after a few expensive things */
571 if (next_p->fpu_counter>5) 547 if (next_p->fpu_counter>5)
@@ -580,22 +556,38 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
580 * Switch DS and ES. 556 * Switch DS and ES.
581 * This won't pick up thread selector changes, but I guess that is ok. 557 * This won't pick up thread selector changes, but I guess that is ok.
582 */ 558 */
583 asm volatile("mov %%es,%0" : "=m" (prev->es)); 559 savesegment(es, prev->es);
584 if (unlikely(next->es | prev->es)) 560 if (unlikely(next->es | prev->es))
585 loadsegment(es, next->es); 561 loadsegment(es, next->es);
586 562
587 asm volatile ("mov %%ds,%0" : "=m" (prev->ds)); 563 savesegment(ds, prev->ds);
588 if (unlikely(next->ds | prev->ds)) 564 if (unlikely(next->ds | prev->ds))
589 loadsegment(ds, next->ds); 565 loadsegment(ds, next->ds);
590 566
567
568 /* We must save %fs and %gs before load_TLS() because
569 * %fs and %gs may be cleared by load_TLS().
570 *
571 * (e.g. xen_load_tls())
572 */
573 savesegment(fs, fsindex);
574 savesegment(gs, gsindex);
575
591 load_TLS(next, cpu); 576 load_TLS(next, cpu);
592 577
578 /*
579 * Leave lazy mode, flushing any hypercalls made here.
580 * This must be done before restoring TLS segments so
581 * the GDT and LDT are properly updated, and must be
582 * done before math_state_restore, so the TS bit is up
583 * to date.
584 */
585 arch_leave_lazy_cpu_mode();
586
593 /* 587 /*
594 * Switch FS and GS. 588 * Switch FS and GS.
595 */ 589 */
596 { 590 {
597 unsigned fsindex;
598 asm volatile("movl %%fs,%0" : "=r" (fsindex));
599 /* segment register != 0 always requires a reload. 591 /* segment register != 0 always requires a reload.
600 also reload when it has changed. 592 also reload when it has changed.
601 when prev process used 64bit base always reload 593 when prev process used 64bit base always reload
@@ -613,10 +605,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
613 if (next->fs) 605 if (next->fs)
614 wrmsrl(MSR_FS_BASE, next->fs); 606 wrmsrl(MSR_FS_BASE, next->fs);
615 prev->fsindex = fsindex; 607 prev->fsindex = fsindex;
616 } 608
617 {
618 unsigned gsindex;
619 asm volatile("movl %%gs,%0" : "=r" (gsindex));
620 if (unlikely(gsindex | next->gsindex | prev->gs)) { 609 if (unlikely(gsindex | next->gsindex | prev->gs)) {
621 load_gs_index(next->gsindex); 610 load_gs_index(next->gsindex);
622 if (gsindex) 611 if (gsindex)
@@ -658,8 +647,11 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
658 /* If the task has used fpu the last 5 timeslices, just do a full 647 /* If the task has used fpu the last 5 timeslices, just do a full
659 * restore of the math state immediately to avoid the trap; the 648 * restore of the math state immediately to avoid the trap; the
660 * chances of needing FPU soon are obviously high now 649 * chances of needing FPU soon are obviously high now
650 *
651 * tsk_used_math() checks prevent calling math_state_restore(),
652 * which can sleep in the case of !tsk_used_math()
661 */ 653 */
662 if (next_p->fpu_counter>5) 654 if (tsk_used_math(next_p) && next_p->fpu_counter > 5)
663 math_state_restore(); 655 math_state_restore();
664 return prev_p; 656 return prev_p;
665} 657}
@@ -794,7 +786,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
794 set_32bit_tls(task, FS_TLS, addr); 786 set_32bit_tls(task, FS_TLS, addr);
795 if (doit) { 787 if (doit) {
796 load_TLS(&task->thread, cpu); 788 load_TLS(&task->thread, cpu);
797 asm volatile("movl %0,%%fs" :: "r"(FS_TLS_SEL)); 789 loadsegment(fs, FS_TLS_SEL);
798 } 790 }
799 task->thread.fsindex = FS_TLS_SEL; 791 task->thread.fsindex = FS_TLS_SEL;
800 task->thread.fs = 0; 792 task->thread.fs = 0;
@@ -804,7 +796,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
804 if (doit) { 796 if (doit) {
805 /* set the selector to 0 to not confuse 797 /* set the selector to 0 to not confuse
806 __switch_to */ 798 __switch_to */
807 asm volatile("movl %0,%%fs" :: "r" (0)); 799 loadsegment(fs, 0);
808 ret = checking_wrmsrl(MSR_FS_BASE, addr); 800 ret = checking_wrmsrl(MSR_FS_BASE, addr);
809 } 801 }
810 } 802 }
@@ -827,7 +819,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
827 if (task->thread.gsindex == GS_TLS_SEL) 819 if (task->thread.gsindex == GS_TLS_SEL)
828 base = read_32bit_tls(task, GS_TLS); 820 base = read_32bit_tls(task, GS_TLS);
829 else if (doit) { 821 else if (doit) {
830 asm("movl %%gs,%0" : "=r" (gsindex)); 822 savesegment(gs, gsindex);
831 if (gsindex) 823 if (gsindex)
832 rdmsrl(MSR_KERNEL_GS_BASE, base); 824 rdmsrl(MSR_KERNEL_GS_BASE, base);
833 else 825 else
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index a7835f282936..77040b6070e1 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -943,13 +943,13 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
943 return copy_regset_to_user(child, &user_x86_32_view, 943 return copy_regset_to_user(child, &user_x86_32_view,
944 REGSET_XFP, 944 REGSET_XFP,
945 0, sizeof(struct user_fxsr_struct), 945 0, sizeof(struct user_fxsr_struct),
946 datap); 946 datap) ? -EIO : 0;
947 947
948 case PTRACE_SETFPXREGS: /* Set the child extended FPU state. */ 948 case PTRACE_SETFPXREGS: /* Set the child extended FPU state. */
949 return copy_regset_from_user(child, &user_x86_32_view, 949 return copy_regset_from_user(child, &user_x86_32_view,
950 REGSET_XFP, 950 REGSET_XFP,
951 0, sizeof(struct user_fxsr_struct), 951 0, sizeof(struct user_fxsr_struct),
952 datap); 952 datap) ? -EIO : 0;
953#endif 953#endif
954 954
955#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION 955#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
new file mode 100644
index 000000000000..05fbe9a0325a
--- /dev/null
+++ b/arch/x86/kernel/pvclock.c
@@ -0,0 +1,141 @@
1/* paravirtual clock -- common code used by kvm/xen
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 2 of the License, or
6 (at your option) any later version.
7
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
12
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
16*/
17
18#include <linux/kernel.h>
19#include <linux/percpu.h>
20#include <asm/pvclock.h>
21
22/*
23 * These are perodically updated
24 * xen: magic shared_info page
25 * kvm: gpa registered via msr
26 * and then copied here.
27 */
28struct pvclock_shadow_time {
29 u64 tsc_timestamp; /* TSC at last update of time vals. */
30 u64 system_timestamp; /* Time, in nanosecs, since boot. */
31 u32 tsc_to_nsec_mul;
32 int tsc_shift;
33 u32 version;
34};
35
36/*
37 * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction,
38 * yielding a 64-bit result.
39 */
40static inline u64 scale_delta(u64 delta, u32 mul_frac, int shift)
41{
42 u64 product;
43#ifdef __i386__
44 u32 tmp1, tmp2;
45#endif
46
47 if (shift < 0)
48 delta >>= -shift;
49 else
50 delta <<= shift;
51
52#ifdef __i386__
53 __asm__ (
54 "mul %5 ; "
55 "mov %4,%%eax ; "
56 "mov %%edx,%4 ; "
57 "mul %5 ; "
58 "xor %5,%5 ; "
59 "add %4,%%eax ; "
60 "adc %5,%%edx ; "
61 : "=A" (product), "=r" (tmp1), "=r" (tmp2)
62 : "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) );
63#elif __x86_64__
64 __asm__ (
65 "mul %%rdx ; shrd $32,%%rdx,%%rax"
66 : "=a" (product) : "0" (delta), "d" ((u64)mul_frac) );
67#else
68#error implement me!
69#endif
70
71 return product;
72}
73
74static u64 pvclock_get_nsec_offset(struct pvclock_shadow_time *shadow)
75{
76 u64 delta = native_read_tsc() - shadow->tsc_timestamp;
77 return scale_delta(delta, shadow->tsc_to_nsec_mul, shadow->tsc_shift);
78}
79
80/*
81 * Reads a consistent set of time-base values from hypervisor,
82 * into a shadow data area.
83 */
84static unsigned pvclock_get_time_values(struct pvclock_shadow_time *dst,
85 struct pvclock_vcpu_time_info *src)
86{
87 do {
88 dst->version = src->version;
89 rmb(); /* fetch version before data */
90 dst->tsc_timestamp = src->tsc_timestamp;
91 dst->system_timestamp = src->system_time;
92 dst->tsc_to_nsec_mul = src->tsc_to_system_mul;
93 dst->tsc_shift = src->tsc_shift;
94 rmb(); /* test version after fetching data */
95 } while ((src->version & 1) || (dst->version != src->version));
96
97 return dst->version;
98}
99
100cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
101{
102 struct pvclock_shadow_time shadow;
103 unsigned version;
104 cycle_t ret, offset;
105
106 do {
107 version = pvclock_get_time_values(&shadow, src);
108 barrier();
109 offset = pvclock_get_nsec_offset(&shadow);
110 ret = shadow.system_timestamp + offset;
111 barrier();
112 } while (version != src->version);
113
114 return ret;
115}
116
117void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock,
118 struct pvclock_vcpu_time_info *vcpu_time,
119 struct timespec *ts)
120{
121 u32 version;
122 u64 delta;
123 struct timespec now;
124
125 /* get wallclock at system boot */
126 do {
127 version = wall_clock->version;
128 rmb(); /* fetch version before time */
129 now.tv_sec = wall_clock->sec;
130 now.tv_nsec = wall_clock->nsec;
131 rmb(); /* fetch time before checking version */
132 } while ((wall_clock->version & 1) || (version != wall_clock->version));
133
134 delta = pvclock_clocksource_read(vcpu_time); /* time since system boot */
135 delta += now.tv_sec * (u64)NSEC_PER_SEC + now.tv_nsec;
136
137 now.tv_nsec = do_div(delta, NSEC_PER_SEC);
138 now.tv_sec = delta;
139
140 set_normalized_timespec(ts, now.tv_sec, now.tv_nsec);
141}
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index d89a648fe710..d13858818100 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -65,6 +65,7 @@ static enum {
65 ICH_FORCE_HPET_RESUME, 65 ICH_FORCE_HPET_RESUME,
66 VT8237_FORCE_HPET_RESUME, 66 VT8237_FORCE_HPET_RESUME,
67 NVIDIA_FORCE_HPET_RESUME, 67 NVIDIA_FORCE_HPET_RESUME,
68 ATI_FORCE_HPET_RESUME,
68} force_hpet_resume_type; 69} force_hpet_resume_type;
69 70
70static void __iomem *rcba_base; 71static void __iomem *rcba_base;
@@ -158,6 +159,8 @@ static void ich_force_enable_hpet(struct pci_dev *dev)
158 159
159DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, 160DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0,
160 ich_force_enable_hpet); 161 ich_force_enable_hpet);
162DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0,
163 ich_force_enable_hpet);
161DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, 164DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1,
162 ich_force_enable_hpet); 165 ich_force_enable_hpet);
163DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, 166DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0,
@@ -174,6 +177,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7,
174 177
175static struct pci_dev *cached_dev; 178static struct pci_dev *cached_dev;
176 179
180static void hpet_print_force_info(void)
181{
182 printk(KERN_INFO "HPET not enabled in BIOS. "
183 "You might try hpet=force boot option\n");
184}
185
177static void old_ich_force_hpet_resume(void) 186static void old_ich_force_hpet_resume(void)
178{ 187{
179 u32 val; 188 u32 val;
@@ -253,8 +262,12 @@ static void old_ich_force_enable_hpet_user(struct pci_dev *dev)
253{ 262{
254 if (hpet_force_user) 263 if (hpet_force_user)
255 old_ich_force_enable_hpet(dev); 264 old_ich_force_enable_hpet(dev);
265 else
266 hpet_print_force_info();
256} 267}
257 268
269DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1,
270 old_ich_force_enable_hpet_user);
258DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, 271DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
259 old_ich_force_enable_hpet_user); 272 old_ich_force_enable_hpet_user);
260DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, 273DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12,
@@ -290,9 +303,14 @@ static void vt8237_force_enable_hpet(struct pci_dev *dev)
290{ 303{
291 u32 uninitialized_var(val); 304 u32 uninitialized_var(val);
292 305
293 if (!hpet_force_user || hpet_address || force_hpet_address) 306 if (hpet_address || force_hpet_address)
294 return; 307 return;
295 308
309 if (!hpet_force_user) {
310 hpet_print_force_info();
311 return;
312 }
313
296 pci_read_config_dword(dev, 0x68, &val); 314 pci_read_config_dword(dev, 0x68, &val);
297 /* 315 /*
298 * Bit 7 is HPET enable bit. 316 * Bit 7 is HPET enable bit.
@@ -330,6 +348,36 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235,
330DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, 348DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
331 vt8237_force_enable_hpet); 349 vt8237_force_enable_hpet);
332 350
351static void ati_force_hpet_resume(void)
352{
353 pci_write_config_dword(cached_dev, 0x14, 0xfed00000);
354 printk(KERN_DEBUG "Force enabled HPET at resume\n");
355}
356
357static void ati_force_enable_hpet(struct pci_dev *dev)
358{
359 u32 uninitialized_var(val);
360
361 if (hpet_address || force_hpet_address)
362 return;
363
364 if (!hpet_force_user) {
365 hpet_print_force_info();
366 return;
367 }
368
369 pci_write_config_dword(dev, 0x14, 0xfed00000);
370 pci_read_config_dword(dev, 0x14, &val);
371 force_hpet_address = val;
372 force_hpet_resume_type = ATI_FORCE_HPET_RESUME;
373 dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at 0x%lx\n",
374 force_hpet_address);
375 cached_dev = dev;
376 return;
377}
378DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS,
379 ati_force_enable_hpet);
380
333/* 381/*
334 * Undocumented chipset feature taken from LinuxBIOS. 382 * Undocumented chipset feature taken from LinuxBIOS.
335 */ 383 */
@@ -343,8 +391,13 @@ static void nvidia_force_enable_hpet(struct pci_dev *dev)
343{ 391{
344 u32 uninitialized_var(val); 392 u32 uninitialized_var(val);
345 393
346 if (!hpet_force_user || hpet_address || force_hpet_address) 394 if (hpet_address || force_hpet_address)
395 return;
396
397 if (!hpet_force_user) {
398 hpet_print_force_info();
347 return; 399 return;
400 }
348 401
349 pci_write_config_dword(dev, 0x44, 0xfed00001); 402 pci_write_config_dword(dev, 0x44, 0xfed00001);
350 pci_read_config_dword(dev, 0x44, &val); 403 pci_read_config_dword(dev, 0x44, &val);
@@ -397,6 +450,9 @@ void force_hpet_resume(void)
397 case NVIDIA_FORCE_HPET_RESUME: 450 case NVIDIA_FORCE_HPET_RESUME:
398 nvidia_force_hpet_resume(); 451 nvidia_force_hpet_resume();
399 return; 452 return;
453 case ATI_FORCE_HPET_RESUME:
454 ati_force_hpet_resume();
455 return;
400 default: 456 default:
401 break; 457 break;
402 } 458 }
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index f6be7d5f82f8..f8a62160e151 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -27,7 +27,7 @@
27void (*pm_power_off)(void); 27void (*pm_power_off)(void);
28EXPORT_SYMBOL(pm_power_off); 28EXPORT_SYMBOL(pm_power_off);
29 29
30static long no_idt[3]; 30static const struct desc_ptr no_idt = {};
31static int reboot_mode; 31static int reboot_mode;
32enum reboot_type reboot_type = BOOT_KBD; 32enum reboot_type reboot_type = BOOT_KBD;
33int reboot_force; 33int reboot_force;
@@ -201,15 +201,15 @@ core_initcall(reboot_init);
201 controller to pulse the CPU reset line, which is more thorough, but 201 controller to pulse the CPU reset line, which is more thorough, but
202 doesn't work with at least one type of 486 motherboard. It is easy 202 doesn't work with at least one type of 486 motherboard. It is easy
203 to stop this code working; hence the copious comments. */ 203 to stop this code working; hence the copious comments. */
204static unsigned long long 204static const unsigned long long
205real_mode_gdt_entries [3] = 205real_mode_gdt_entries [3] =
206{ 206{
207 0x0000000000000000ULL, /* Null descriptor */ 207 0x0000000000000000ULL, /* Null descriptor */
208 0x00009a000000ffffULL, /* 16-bit real-mode 64k code at 0x00000000 */ 208 0x00009b000000ffffULL, /* 16-bit real-mode 64k code at 0x00000000 */
209 0x000092000100ffffULL /* 16-bit real-mode 64k data at 0x00000100 */ 209 0x000093000100ffffULL /* 16-bit real-mode 64k data at 0x00000100 */
210}; 210};
211 211
212static struct desc_ptr 212static const struct desc_ptr
213real_mode_gdt = { sizeof (real_mode_gdt_entries) - 1, (long)real_mode_gdt_entries }, 213real_mode_gdt = { sizeof (real_mode_gdt_entries) - 1, (long)real_mode_gdt_entries },
214real_mode_idt = { 0x3ff, 0 }; 214real_mode_idt = { 0x3ff, 0 };
215 215
@@ -231,7 +231,7 @@ real_mode_idt = { 0x3ff, 0 };
231 231
232 More could be done here to set up the registers as if a CPU reset had 232 More could be done here to set up the registers as if a CPU reset had
233 occurred; hopefully real BIOSs don't assume much. */ 233 occurred; hopefully real BIOSs don't assume much. */
234static unsigned char real_mode_switch [] = 234static const unsigned char real_mode_switch [] =
235{ 235{
236 0x66, 0x0f, 0x20, 0xc0, /* movl %cr0,%eax */ 236 0x66, 0x0f, 0x20, 0xc0, /* movl %cr0,%eax */
237 0x66, 0x83, 0xe0, 0x11, /* andl $0x00000011,%eax */ 237 0x66, 0x83, 0xe0, 0x11, /* andl $0x00000011,%eax */
@@ -245,7 +245,7 @@ static unsigned char real_mode_switch [] =
245 0x24, 0x10, /* f: andb $0x10,al */ 245 0x24, 0x10, /* f: andb $0x10,al */
246 0x66, 0x0f, 0x22, 0xc0 /* movl %eax,%cr0 */ 246 0x66, 0x0f, 0x22, 0xc0 /* movl %eax,%cr0 */
247}; 247};
248static unsigned char jump_to_bios [] = 248static const unsigned char jump_to_bios [] =
249{ 249{
250 0xea, 0x00, 0x00, 0xff, 0xff /* ljmp $0xffff,$0x0000 */ 250 0xea, 0x00, 0x00, 0xff, 0xff /* ljmp $0xffff,$0x0000 */
251}; 251};
@@ -255,7 +255,7 @@ static unsigned char jump_to_bios [] =
255 * specified by the code and length parameters. 255 * specified by the code and length parameters.
256 * We assume that length will aways be less that 100! 256 * We assume that length will aways be less that 100!
257 */ 257 */
258void machine_real_restart(unsigned char *code, int length) 258void machine_real_restart(const unsigned char *code, int length)
259{ 259{
260 local_irq_disable(); 260 local_irq_disable();
261 261
@@ -368,7 +368,7 @@ static void native_machine_emergency_restart(void)
368 } 368 }
369 369
370 case BOOT_TRIPLE: 370 case BOOT_TRIPLE:
371 load_idt((const struct desc_ptr *)&no_idt); 371 load_idt(&no_idt);
372 __asm__ __volatile__("int3"); 372 __asm__ __volatile__("int3");
373 373
374 reboot_type = BOOT_KBD; 374 reboot_type = BOOT_KBD;
diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index dec0b5ec25c2..61a837743fe5 100644
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -49,7 +49,7 @@ struct device_fixup {
49 void (*reboot_fixup)(struct pci_dev *); 49 void (*reboot_fixup)(struct pci_dev *);
50}; 50};
51 51
52static struct device_fixup fixups_table[] = { 52static const struct device_fixup fixups_table[] = {
53{ PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset }, 53{ PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset },
54{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset }, 54{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset },
55{ PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE, cs5530a_warm_reset }, 55{ PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE, cs5530a_warm_reset },
@@ -64,7 +64,7 @@ static struct device_fixup fixups_table[] = {
64 */ 64 */
65void mach_reboot_fixups(void) 65void mach_reboot_fixups(void)
66{ 66{
67 struct device_fixup *cur; 67 const struct device_fixup *cur;
68 struct pci_dev *dev; 68 struct pci_dev *dev;
69 int i; 69 int i;
70 70
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 9615eee9b775..05191bbc68b8 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -4,6 +4,8 @@
4#include <linux/acpi.h> 4#include <linux/acpi.h>
5#include <linux/bcd.h> 5#include <linux/bcd.h>
6#include <linux/mc146818rtc.h> 6#include <linux/mc146818rtc.h>
7#include <linux/platform_device.h>
8#include <linux/pnp.h>
7 9
8#include <asm/time.h> 10#include <asm/time.h>
9#include <asm/vsyscall.h> 11#include <asm/vsyscall.h>
@@ -197,3 +199,35 @@ unsigned long long native_read_tsc(void)
197} 199}
198EXPORT_SYMBOL(native_read_tsc); 200EXPORT_SYMBOL(native_read_tsc);
199 201
202
203static struct resource rtc_resources[] = {
204 [0] = {
205 .start = RTC_PORT(0),
206 .end = RTC_PORT(1),
207 .flags = IORESOURCE_IO,
208 },
209 [1] = {
210 .start = RTC_IRQ,
211 .end = RTC_IRQ,
212 .flags = IORESOURCE_IRQ,
213 }
214};
215
216static struct platform_device rtc_device = {
217 .name = "rtc_cmos",
218 .id = -1,
219 .resource = rtc_resources,
220 .num_resources = ARRAY_SIZE(rtc_resources),
221};
222
223static __init int add_rtc_cmos(void)
224{
225#ifdef CONFIG_PNP
226 if (!pnp_platform_devices)
227 platform_device_register(&rtc_device);
228#else
229 platform_device_register(&rtc_device);
230#endif /* CONFIG_PNP */
231 return 0;
232}
233device_initcall(add_rtc_cmos);
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 6f80b852a196..531b55b8e81a 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1,139 +1,894 @@
1#include <linux/kernel.h> 1/*
2 * Copyright (C) 1995 Linus Torvalds
3 *
4 * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
5 *
6 * Memory region support
7 * David Parsons <orc@pell.chi.il.us>, July-August 1999
8 *
9 * Added E820 sanitization routine (removes overlapping memory regions);
10 * Brian Moyle <bmoyle@mvista.com>, February 2001
11 *
12 * Moved CPU detection code to cpu/${cpu}.c
13 * Patrick Mochel <mochel@osdl.org>, March 2002
14 *
15 * Provisions for empty E820 memory regions (reported by certain BIOSes).
16 * Alex Achenbach <xela@slit.de>, December 2002.
17 *
18 */
19
20/*
21 * This file handles the architecture-dependent parts of initialization
22 */
23
24#include <linux/sched.h>
25#include <linux/mm.h>
26#include <linux/mmzone.h>
27#include <linux/screen_info.h>
28#include <linux/ioport.h>
29#include <linux/acpi.h>
30#include <linux/apm_bios.h>
31#include <linux/initrd.h>
32#include <linux/bootmem.h>
33#include <linux/seq_file.h>
34#include <linux/console.h>
35#include <linux/mca.h>
36#include <linux/root_dev.h>
37#include <linux/highmem.h>
2#include <linux/module.h> 38#include <linux/module.h>
39#include <linux/efi.h>
3#include <linux/init.h> 40#include <linux/init.h>
4#include <linux/bootmem.h> 41#include <linux/edd.h>
42#include <linux/iscsi_ibft.h>
43#include <linux/nodemask.h>
44#include <linux/kexec.h>
45#include <linux/dmi.h>
46#include <linux/pfn.h>
47#include <linux/pci.h>
48#include <asm/pci-direct.h>
49#include <linux/init_ohci1394_dma.h>
50#include <linux/kvm_para.h>
51
52#include <linux/errno.h>
53#include <linux/kernel.h>
54#include <linux/stddef.h>
55#include <linux/unistd.h>
56#include <linux/ptrace.h>
57#include <linux/slab.h>
58#include <linux/user.h>
59#include <linux/delay.h>
60#include <linux/highmem.h>
61
62#include <linux/kallsyms.h>
63#include <linux/edd.h>
64#include <linux/iscsi_ibft.h>
65#include <linux/kexec.h>
66#include <linux/cpufreq.h>
67#include <linux/dma-mapping.h>
68#include <linux/ctype.h>
69#include <linux/uaccess.h>
70
5#include <linux/percpu.h> 71#include <linux/percpu.h>
72#include <linux/crash_dump.h>
73
74#include <video/edid.h>
75
76#include <asm/mtrr.h>
77#include <asm/apic.h>
78#include <asm/e820.h>
79#include <asm/mpspec.h>
80#include <asm/setup.h>
81#include <asm/arch_hooks.h>
82#include <asm/efi.h>
83#include <asm/sections.h>
84#include <asm/dmi.h>
85#include <asm/io_apic.h>
86#include <asm/ist.h>
87#include <asm/vmi.h>
88#include <setup_arch.h>
89#include <asm/bios_ebda.h>
90#include <asm/cacheflush.h>
91#include <asm/processor.h>
92#include <asm/bugs.h>
93
94#include <asm/system.h>
95#include <asm/vsyscall.h>
6#include <asm/smp.h> 96#include <asm/smp.h>
97#include <asm/desc.h>
98#include <asm/dma.h>
99#include <asm/gart.h>
100#include <asm/mmu_context.h>
101#include <asm/proto.h>
102
103#include <mach_apic.h>
104#include <asm/paravirt.h>
105
7#include <asm/percpu.h> 106#include <asm/percpu.h>
8#include <asm/sections.h> 107#include <asm/sections.h>
9#include <asm/processor.h>
10#include <asm/setup.h>
11#include <asm/topology.h> 108#include <asm/topology.h>
12#include <asm/mpspec.h>
13#include <asm/apicdef.h> 109#include <asm/apicdef.h>
110#ifdef CONFIG_X86_64
111#include <asm/numa_64.h>
112#endif
14 113
15#ifdef CONFIG_X86_LOCAL_APIC 114#ifndef ARCH_SETUP
16unsigned int num_processors; 115#define ARCH_SETUP
17unsigned disabled_cpus __cpuinitdata; 116#endif
18/* Processor that is doing the boot up */ 117
19unsigned int boot_cpu_physical_apicid = -1U; 118#ifndef CONFIG_DEBUG_BOOT_PARAMS
20EXPORT_SYMBOL(boot_cpu_physical_apicid); 119struct boot_params __initdata boot_params;
120#else
121struct boot_params boot_params;
122#endif
123
124/*
125 * Machine setup..
126 */
127static struct resource data_resource = {
128 .name = "Kernel data",
129 .start = 0,
130 .end = 0,
131 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
132};
133
134static struct resource code_resource = {
135 .name = "Kernel code",
136 .start = 0,
137 .end = 0,
138 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
139};
140
141static struct resource bss_resource = {
142 .name = "Kernel bss",
143 .start = 0,
144 .end = 0,
145 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
146};
147
148
149#ifdef CONFIG_X86_32
150/* This value is set up by the early boot code to point to the value
151 immediately after the boot time page tables. It contains a *physical*
152 address, and must not be in the .bss segment! */
153unsigned long init_pg_tables_start __initdata = ~0UL;
154unsigned long init_pg_tables_end __initdata = ~0UL;
155
156static struct resource video_ram_resource = {
157 .name = "Video RAM area",
158 .start = 0xa0000,
159 .end = 0xbffff,
160 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
161};
162
163/* cpu data as detected by the assembly code in head.S */
164struct cpuinfo_x86 new_cpu_data __cpuinitdata = {0, 0, 0, 0, -1, 1, 0, 0, -1};
165/* common cpu data for all cpus */
166struct cpuinfo_x86 boot_cpu_data __read_mostly = {0, 0, 0, 0, -1, 1, 0, 0, -1};
167EXPORT_SYMBOL(boot_cpu_data);
168static void set_mca_bus(int x)
169{
170#ifdef CONFIG_MCA
171 MCA_bus = x;
172#endif
173}
174
175unsigned int def_to_bigsmp;
176
177/* for MCA, but anyone else can use it if they want */
178unsigned int machine_id;
179unsigned int machine_submodel_id;
180unsigned int BIOS_revision;
181
182struct apm_info apm_info;
183EXPORT_SYMBOL(apm_info);
184
185#if defined(CONFIG_X86_SPEEDSTEP_SMI) || \
186 defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE)
187struct ist_info ist_info;
188EXPORT_SYMBOL(ist_info);
189#else
190struct ist_info ist_info;
191#endif
192
193#else
194struct cpuinfo_x86 boot_cpu_data __read_mostly;
195EXPORT_SYMBOL(boot_cpu_data);
196#endif
21 197
22DEFINE_PER_CPU(u16, x86_cpu_to_apicid) = BAD_APICID;
23EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
24 198
25/* Bitmask of physically existing CPUs */ 199#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
26physid_mask_t phys_cpu_present_map; 200unsigned long mmu_cr4_features;
201#else
202unsigned long mmu_cr4_features = X86_CR4_PAE;
27#endif 203#endif
28 204
29#if defined(CONFIG_HAVE_SETUP_PER_CPU_AREA) && defined(CONFIG_X86_SMP) 205/* Boot loader ID as an integer, for the benefit of proc_dointvec */
206int bootloader_type;
207
30/* 208/*
31 * Copy data used in early init routines from the initial arrays to the 209 * Early DMI memory
32 * per cpu data areas. These arrays then become expendable and the 210 */
33 * *_early_ptr's are zeroed indicating that the static arrays are gone. 211int dmi_alloc_index;
212char dmi_alloc_data[DMI_MAX_DATA];
213
214/*
215 * Setup options
216 */
217struct screen_info screen_info;
218EXPORT_SYMBOL(screen_info);
219struct edid_info edid_info;
220EXPORT_SYMBOL_GPL(edid_info);
221
222extern int root_mountflags;
223
224unsigned long saved_video_mode;
225
226#define RAMDISK_IMAGE_START_MASK 0x07FF
227#define RAMDISK_PROMPT_FLAG 0x8000
228#define RAMDISK_LOAD_FLAG 0x4000
229
230static char __initdata command_line[COMMAND_LINE_SIZE];
231
232#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
233struct edd edd;
234#ifdef CONFIG_EDD_MODULE
235EXPORT_SYMBOL(edd);
236#endif
237/**
238 * copy_edd() - Copy the BIOS EDD information
239 * from boot_params into a safe place.
240 *
34 */ 241 */
35static void __init setup_per_cpu_maps(void) 242static inline void copy_edd(void)
243{
244 memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
245 sizeof(edd.mbr_signature));
246 memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info));
247 edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries;
248 edd.edd_info_nr = boot_params.eddbuf_entries;
249}
250#else
251static inline void copy_edd(void)
252{
253}
254#endif
255
256#ifdef CONFIG_BLK_DEV_INITRD
257
258#ifdef CONFIG_X86_32
259
260#define MAX_MAP_CHUNK (NR_FIX_BTMAPS << PAGE_SHIFT)
261static void __init relocate_initrd(void)
36{ 262{
37 int cpu;
38 263
39 for_each_possible_cpu(cpu) { 264 u64 ramdisk_image = boot_params.hdr.ramdisk_image;
40 per_cpu(x86_cpu_to_apicid, cpu) = x86_cpu_to_apicid_init[cpu]; 265 u64 ramdisk_size = boot_params.hdr.ramdisk_size;
41 per_cpu(x86_bios_cpu_apicid, cpu) = 266 u64 end_of_lowmem = max_low_pfn << PAGE_SHIFT;
42 x86_bios_cpu_apicid_init[cpu]; 267 u64 ramdisk_here;
43#ifdef CONFIG_NUMA 268 unsigned long slop, clen, mapaddr;
44 per_cpu(x86_cpu_to_node_map, cpu) = 269 char *p, *q;
45 x86_cpu_to_node_map_init[cpu]; 270
271 /* We need to move the initrd down into lowmem */
272 ramdisk_here = find_e820_area(0, end_of_lowmem, ramdisk_size,
273 PAGE_SIZE);
274
275 if (ramdisk_here == -1ULL)
276 panic("Cannot find place for new RAMDISK of size %lld\n",
277 ramdisk_size);
278
279 /* Note: this includes all the lowmem currently occupied by
280 the initrd, we rely on that fact to keep the data intact. */
281 reserve_early(ramdisk_here, ramdisk_here + ramdisk_size,
282 "NEW RAMDISK");
283 initrd_start = ramdisk_here + PAGE_OFFSET;
284 initrd_end = initrd_start + ramdisk_size;
285 printk(KERN_INFO "Allocated new RAMDISK: %08llx - %08llx\n",
286 ramdisk_here, ramdisk_here + ramdisk_size);
287
288 q = (char *)initrd_start;
289
290 /* Copy any lowmem portion of the initrd */
291 if (ramdisk_image < end_of_lowmem) {
292 clen = end_of_lowmem - ramdisk_image;
293 p = (char *)__va(ramdisk_image);
294 memcpy(q, p, clen);
295 q += clen;
296 ramdisk_image += clen;
297 ramdisk_size -= clen;
298 }
299
300 /* Copy the highmem portion of the initrd */
301 while (ramdisk_size) {
302 slop = ramdisk_image & ~PAGE_MASK;
303 clen = ramdisk_size;
304 if (clen > MAX_MAP_CHUNK-slop)
305 clen = MAX_MAP_CHUNK-slop;
306 mapaddr = ramdisk_image & PAGE_MASK;
307 p = early_ioremap(mapaddr, clen+slop);
308 memcpy(q, p+slop, clen);
309 early_iounmap(p, clen+slop);
310 q += clen;
311 ramdisk_image += clen;
312 ramdisk_size -= clen;
313 }
314 /* high pages is not converted by early_res_to_bootmem */
315 ramdisk_image = boot_params.hdr.ramdisk_image;
316 ramdisk_size = boot_params.hdr.ramdisk_size;
317 printk(KERN_INFO "Move RAMDISK from %016llx - %016llx to"
318 " %08llx - %08llx\n",
319 ramdisk_image, ramdisk_image + ramdisk_size - 1,
320 ramdisk_here, ramdisk_here + ramdisk_size - 1);
321}
46#endif 322#endif
323
324static void __init reserve_initrd(void)
325{
326 u64 ramdisk_image = boot_params.hdr.ramdisk_image;
327 u64 ramdisk_size = boot_params.hdr.ramdisk_size;
328 u64 ramdisk_end = ramdisk_image + ramdisk_size;
329 u64 end_of_lowmem = max_low_pfn << PAGE_SHIFT;
330
331 if (!boot_params.hdr.type_of_loader ||
332 !ramdisk_image || !ramdisk_size)
333 return; /* No initrd provided by bootloader */
334
335 initrd_start = 0;
336
337 if (ramdisk_size >= (end_of_lowmem>>1)) {
338 free_early(ramdisk_image, ramdisk_end);
339 printk(KERN_ERR "initrd too large to handle, "
340 "disabling initrd\n");
341 return;
342 }
343
344 printk(KERN_INFO "RAMDISK: %08llx - %08llx\n", ramdisk_image,
345 ramdisk_end);
346
347
348 if (ramdisk_end <= end_of_lowmem) {
349 /* All in lowmem, easy case */
350 /*
351 * don't need to reserve again, already reserved early
352 * in i386_start_kernel
353 */
354 initrd_start = ramdisk_image + PAGE_OFFSET;
355 initrd_end = initrd_start + ramdisk_size;
356 return;
47 } 357 }
48 358
49 /* indicate the early static arrays will soon be gone */ 359#ifdef CONFIG_X86_32
50 x86_cpu_to_apicid_early_ptr = NULL; 360 relocate_initrd();
51 x86_bios_cpu_apicid_early_ptr = NULL; 361#else
52#ifdef CONFIG_NUMA 362 printk(KERN_ERR "initrd extends beyond end of memory "
53 x86_cpu_to_node_map_early_ptr = NULL; 363 "(0x%08llx > 0x%08llx)\ndisabling initrd\n",
364 ramdisk_end, end_of_lowmem);
365 initrd_start = 0;
54#endif 366#endif
367 free_early(ramdisk_image, ramdisk_end);
55} 368}
369#else
370static void __init reserve_initrd(void)
371{
372}
373#endif /* CONFIG_BLK_DEV_INITRD */
374
375static void __init parse_setup_data(void)
376{
377 struct setup_data *data;
378 u64 pa_data;
379
380 if (boot_params.hdr.version < 0x0209)
381 return;
382 pa_data = boot_params.hdr.setup_data;
383 while (pa_data) {
384 data = early_ioremap(pa_data, PAGE_SIZE);
385 switch (data->type) {
386 case SETUP_E820_EXT:
387 parse_e820_ext(data, pa_data);
388 break;
389 default:
390 break;
391 }
392 pa_data = data->next;
393 early_iounmap(data, PAGE_SIZE);
394 }
395}
396
397static void __init e820_reserve_setup_data(void)
398{
399 struct setup_data *data;
400 u64 pa_data;
401 int found = 0;
402
403 if (boot_params.hdr.version < 0x0209)
404 return;
405 pa_data = boot_params.hdr.setup_data;
406 while (pa_data) {
407 data = early_ioremap(pa_data, sizeof(*data));
408 e820_update_range(pa_data, sizeof(*data)+data->len,
409 E820_RAM, E820_RESERVED_KERN);
410 found = 1;
411 pa_data = data->next;
412 early_iounmap(data, sizeof(*data));
413 }
414 if (!found)
415 return;
56 416
57#ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP 417 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
58cpumask_t *cpumask_of_cpu_map __read_mostly; 418 memcpy(&e820_saved, &e820, sizeof(struct e820map));
59EXPORT_SYMBOL(cpumask_of_cpu_map); 419 printk(KERN_INFO "extended physical RAM map:\n");
420 e820_print_map("reserve setup_data");
421}
60 422
61/* requires nr_cpu_ids to be initialized */ 423static void __init reserve_early_setup_data(void)
62static void __init setup_cpumask_of_cpu(void)
63{ 424{
64 int i; 425 struct setup_data *data;
426 u64 pa_data;
427 char buf[32];
428
429 if (boot_params.hdr.version < 0x0209)
430 return;
431 pa_data = boot_params.hdr.setup_data;
432 while (pa_data) {
433 data = early_ioremap(pa_data, sizeof(*data));
434 sprintf(buf, "setup data %x", data->type);
435 reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
436 pa_data = data->next;
437 early_iounmap(data, sizeof(*data));
438 }
439}
440
441/*
442 * --------- Crashkernel reservation ------------------------------
443 */
444
445#ifdef CONFIG_KEXEC
446
447/**
448 * Reserve @size bytes of crashkernel memory at any suitable offset.
449 *
450 * @size: Size of the crashkernel memory to reserve.
451 * Returns the base address on success, and -1ULL on failure.
452 */
453unsigned long long find_and_reserve_crashkernel(unsigned long long size)
454{
455 const unsigned long long alignment = 16<<20; /* 16M */
456 unsigned long long start = 0LL;
457
458 while (1) {
459 int ret;
460
461 start = find_e820_area(start, ULONG_MAX, size, alignment);
462 if (start == -1ULL)
463 return start;
464
465 /* try to reserve it */
466 ret = reserve_bootmem_generic(start, size, BOOTMEM_EXCLUSIVE);
467 if (ret >= 0)
468 return start;
469
470 start += alignment;
471 }
472}
473
474static inline unsigned long long get_total_mem(void)
475{
476 unsigned long long total;
477
478 total = max_low_pfn - min_low_pfn;
479#ifdef CONFIG_HIGHMEM
480 total += highend_pfn - highstart_pfn;
481#endif
482
483 return total << PAGE_SHIFT;
484}
485
486static void __init reserve_crashkernel(void)
487{
488 unsigned long long total_mem;
489 unsigned long long crash_size, crash_base;
490 int ret;
491
492 total_mem = get_total_mem();
65 493
66 /* alloc_bootmem zeroes memory */ 494 ret = parse_crashkernel(boot_command_line, total_mem,
67 cpumask_of_cpu_map = alloc_bootmem_low(sizeof(cpumask_t) * nr_cpu_ids); 495 &crash_size, &crash_base);
68 for (i = 0; i < nr_cpu_ids; i++) 496 if (ret != 0 || crash_size <= 0)
69 cpu_set(i, cpumask_of_cpu_map[i]); 497 return;
498
499 /* 0 means: find the address automatically */
500 if (crash_base <= 0) {
501 crash_base = find_and_reserve_crashkernel(crash_size);
502 if (crash_base == -1ULL) {
503 pr_info("crashkernel reservation failed. "
504 "No suitable area found.\n");
505 return;
506 }
507 } else {
508 ret = reserve_bootmem_generic(crash_base, crash_size,
509 BOOTMEM_EXCLUSIVE);
510 if (ret < 0) {
511 pr_info("crashkernel reservation failed - "
512 "memory is in use\n");
513 return;
514 }
515 }
516
517 printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
518 "for crashkernel (System RAM: %ldMB)\n",
519 (unsigned long)(crash_size >> 20),
520 (unsigned long)(crash_base >> 20),
521 (unsigned long)(total_mem >> 20));
522
523 crashk_res.start = crash_base;
524 crashk_res.end = crash_base + crash_size - 1;
525 insert_resource(&iomem_resource, &crashk_res);
70} 526}
71#else 527#else
72static inline void setup_cpumask_of_cpu(void) { } 528static void __init reserve_crashkernel(void)
529{
530}
73#endif 531#endif
74 532
75#ifdef CONFIG_X86_32 533static struct resource standard_io_resources[] = {
76/* 534 { .name = "dma1", .start = 0x00, .end = 0x1f,
77 * Great future not-so-futuristic plan: make i386 and x86_64 do it 535 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
78 * the same way 536 { .name = "pic1", .start = 0x20, .end = 0x21,
537 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
538 { .name = "timer0", .start = 0x40, .end = 0x43,
539 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
540 { .name = "timer1", .start = 0x50, .end = 0x53,
541 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
542 { .name = "keyboard", .start = 0x60, .end = 0x60,
543 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
544 { .name = "keyboard", .start = 0x64, .end = 0x64,
545 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
546 { .name = "dma page reg", .start = 0x80, .end = 0x8f,
547 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
548 { .name = "pic2", .start = 0xa0, .end = 0xa1,
549 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
550 { .name = "dma2", .start = 0xc0, .end = 0xdf,
551 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
552 { .name = "fpu", .start = 0xf0, .end = 0xff,
553 .flags = IORESOURCE_BUSY | IORESOURCE_IO }
554};
555
556static void __init reserve_standard_io_resources(void)
557{
558 int i;
559
560 /* request I/O space for devices used on all i[345]86 PCs */
561 for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
562 request_resource(&ioport_resource, &standard_io_resources[i]);
563
564}
565
566#ifdef CONFIG_PROC_VMCORE
567/* elfcorehdr= specifies the location of elf core header
568 * stored by the crashed kernel. This option will be passed
569 * by kexec loader to the capture kernel.
79 */ 570 */
80unsigned long __per_cpu_offset[NR_CPUS] __read_mostly; 571static int __init setup_elfcorehdr(char *arg)
81EXPORT_SYMBOL(__per_cpu_offset); 572{
573 char *end;
574 if (!arg)
575 return -EINVAL;
576 elfcorehdr_addr = memparse(arg, &end);
577 return end > arg ? 0 : -EINVAL;
578}
579early_param("elfcorehdr", setup_elfcorehdr);
82#endif 580#endif
83 581
84/* 582/*
85 * Great future plan: 583 * Determine if we were loaded by an EFI loader. If so, then we have also been
86 * Declare PDA itself and support (irqstack,tss,pgd) as per cpu data. 584 * passed the efi memmap, systab, etc., so we should use these data structures
87 * Always point %gs to its beginning 585 * for initialization. Note, the efi init code path is determined by the
586 * global efi_enabled. This allows the same kernel image to be used on existing
587 * systems (with a traditional BIOS) as well as on EFI systems.
588 */
589/*
590 * setup_arch - architecture-specific boot-time initializations
591 *
592 * Note: On x86_64, fixmaps are ready for use even before this is called.
88 */ 593 */
89void __init setup_per_cpu_areas(void) 594
595void __init setup_arch(char **cmdline_p)
90{ 596{
91 int i, highest_cpu = 0; 597#ifdef CONFIG_X86_32
92 unsigned long size; 598 memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
599 visws_early_detect();
600 pre_setup_arch_hook();
601 early_cpu_init();
602#else
603 printk(KERN_INFO "Command line: %s\n", boot_command_line);
604#endif
93 605
94#ifdef CONFIG_HOTPLUG_CPU 606 early_ioremap_init();
95 prefill_possible_map(); 607
608 ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
609 screen_info = boot_params.screen_info;
610 edid_info = boot_params.edid_info;
611#ifdef CONFIG_X86_32
612 apm_info.bios = boot_params.apm_bios_info;
613 ist_info = boot_params.ist_info;
614 if (boot_params.sys_desc_table.length != 0) {
615 set_mca_bus(boot_params.sys_desc_table.table[3] & 0x2);
616 machine_id = boot_params.sys_desc_table.table[0];
617 machine_submodel_id = boot_params.sys_desc_table.table[1];
618 BIOS_revision = boot_params.sys_desc_table.table[2];
619 }
620#endif
621 saved_video_mode = boot_params.hdr.vid_mode;
622 bootloader_type = boot_params.hdr.type_of_loader;
623
624#ifdef CONFIG_BLK_DEV_RAM
625 rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK;
626 rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
627 rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
628#endif
629#ifdef CONFIG_EFI
630 if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
631#ifdef CONFIG_X86_32
632 "EL32",
633#else
634 "EL64",
635#endif
636 4)) {
637 efi_enabled = 1;
638 efi_reserve_early();
639 }
96#endif 640#endif
97 641
98 /* Copy section for each CPU (we discard the original) */ 642 ARCH_SETUP
99 size = PERCPU_ENOUGH_ROOM;
100 printk(KERN_INFO "PERCPU: Allocating %lu bytes of per cpu data\n",
101 size);
102 643
103 for_each_possible_cpu(i) { 644 setup_memory_map();
104 char *ptr; 645 parse_setup_data();
105#ifndef CONFIG_NEED_MULTIPLE_NODES 646 /* update the e820_saved too */
106 ptr = alloc_bootmem_pages(size); 647 e820_reserve_setup_data();
648
649 copy_edd();
650
651 if (!boot_params.hdr.root_flags)
652 root_mountflags &= ~MS_RDONLY;
653 init_mm.start_code = (unsigned long) _text;
654 init_mm.end_code = (unsigned long) _etext;
655 init_mm.end_data = (unsigned long) _edata;
656#ifdef CONFIG_X86_32
657 init_mm.brk = init_pg_tables_end + PAGE_OFFSET;
107#else 658#else
108 int node = early_cpu_to_node(i); 659 init_mm.brk = (unsigned long) &_end;
109 if (!node_online(node) || !NODE_DATA(node)) {
110 ptr = alloc_bootmem_pages(size);
111 printk(KERN_INFO
112 "cpu %d has no node or node-local memory\n", i);
113 }
114 else
115 ptr = alloc_bootmem_pages_node(NODE_DATA(node), size);
116#endif 660#endif
117 if (!ptr) 661
118 panic("Cannot allocate cpu data for CPU %d\n", i); 662 code_resource.start = virt_to_phys(_text);
663 code_resource.end = virt_to_phys(_etext)-1;
664 data_resource.start = virt_to_phys(_etext);
665 data_resource.end = virt_to_phys(_edata)-1;
666 bss_resource.start = virt_to_phys(&__bss_start);
667 bss_resource.end = virt_to_phys(&__bss_stop)-1;
668
119#ifdef CONFIG_X86_64 669#ifdef CONFIG_X86_64
120 cpu_pda(i)->data_offset = ptr - __per_cpu_start; 670 early_cpu_init();
671#endif
672 strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
673 *cmdline_p = command_line;
674
675 parse_early_param();
676
677 /* after early param, so could get panic from serial */
678 reserve_early_setup_data();
679
680 if (acpi_mps_check()) {
681#ifdef CONFIG_X86_LOCAL_APIC
682 disable_apic = 1;
683#endif
684 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
685 }
686
687#ifdef CONFIG_PCI
688 if (pci_early_dump_regs)
689 early_dump_pci_devices();
690#endif
691
692 finish_e820_parsing();
693
694#ifdef CONFIG_X86_32
695 probe_roms();
696#endif
697
698 /* after parse_early_param, so could debug it */
699 insert_resource(&iomem_resource, &code_resource);
700 insert_resource(&iomem_resource, &data_resource);
701 insert_resource(&iomem_resource, &bss_resource);
702
703 if (efi_enabled)
704 efi_init();
705
706#ifdef CONFIG_X86_32
707 if (ppro_with_ram_bug()) {
708 e820_update_range(0x70000000ULL, 0x40000ULL, E820_RAM,
709 E820_RESERVED);
710 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
711 printk(KERN_INFO "fixed physical RAM map:\n");
712 e820_print_map("bad_ppro");
713 }
714#else
715 early_gart_iommu_check();
716#endif
717
718 /*
719 * partially used pages are not usable - thus
720 * we are rounding upwards:
721 */
722 max_pfn = e820_end_of_ram_pfn();
723
724 /* preallocate 4k for mptable mpc */
725 early_reserve_e820_mpc_new();
726 /* update e820 for memory not covered by WB MTRRs */
727 mtrr_bp_init();
728 if (mtrr_trim_uncached_memory(max_pfn))
729 max_pfn = e820_end_of_ram_pfn();
730
731#ifdef CONFIG_X86_32
732 /* max_low_pfn get updated here */
733 find_low_pfn_range();
121#else 734#else
122 __per_cpu_offset[i] = ptr - __per_cpu_start; 735 num_physpages = max_pfn;
736
737 check_efer();
738
739 /* How many end-of-memory variables you have, grandma! */
740 /* need this before calling reserve_initrd */
741 if (max_pfn > (1UL<<(32 - PAGE_SHIFT)))
742 max_low_pfn = e820_end_of_low_ram_pfn();
743 else
744 max_low_pfn = max_pfn;
745
746 high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1;
123#endif 747#endif
124 memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
125 748
126 highest_cpu = i; 749 /* max_pfn_mapped is updated here */
750 max_low_pfn_mapped = init_memory_mapping(0, max_low_pfn<<PAGE_SHIFT);
751 max_pfn_mapped = max_low_pfn_mapped;
752
753#ifdef CONFIG_X86_64
754 if (max_pfn > max_low_pfn) {
755 max_pfn_mapped = init_memory_mapping(1UL<<32,
756 max_pfn<<PAGE_SHIFT);
757 /* can we preseve max_low_pfn ?*/
758 max_low_pfn = max_pfn;
127 } 759 }
760#endif
128 761
129 nr_cpu_ids = highest_cpu + 1; 762 /*
130 printk(KERN_DEBUG "NR_CPUS: %d, nr_cpu_ids: %d\n", NR_CPUS, nr_cpu_ids); 763 * NOTE: On x86-32, only from this point on, fixmaps are ready for use.
764 */
131 765
132 /* Setup percpu data maps */ 766#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
133 setup_per_cpu_maps(); 767 if (init_ohci1394_dma_early)
768 init_ohci1394_dma_on_all_controllers();
769#endif
134 770
135 /* Setup cpumask_of_cpu map */ 771 reserve_initrd();
136 setup_cpumask_of_cpu(); 772
137} 773#ifdef CONFIG_X86_64
774 vsmp_init();
775#endif
776
777 dmi_scan_machine();
778
779 io_delay_init();
780
781 /*
782 * Parse the ACPI tables for possible boot-time SMP configuration.
783 */
784 acpi_boot_table_init();
785
786#ifdef CONFIG_ACPI_NUMA
787 /*
788 * Parse SRAT to discover nodes.
789 */
790 acpi_numa_init();
791#endif
792
793 initmem_init(0, max_pfn);
794
795#ifdef CONFIG_X86_64
796 dma32_reserve_bootmem();
797#endif
798
799#ifdef CONFIG_ACPI_SLEEP
800 /*
801 * Reserve low memory region for sleep support.
802 */
803 acpi_reserve_bootmem();
804#endif
805#ifdef CONFIG_X86_FIND_SMP_CONFIG
806 /*
807 * Find and reserve possible boot-time SMP configuration:
808 */
809 find_smp_config();
810#endif
811 reserve_crashkernel();
812
813 reserve_ibft_region();
814
815#ifdef CONFIG_KVM_CLOCK
816 kvmclock_init();
817#endif
818
819#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
820 /*
821 * Must be after max_low_pfn is determined, and before kernel
822 * pagetables are setup.
823 */
824 vmi_init();
825#endif
826
827 paging_init();
828
829#ifdef CONFIG_X86_64
830 map_vsyscall();
831#endif
832
833#ifdef CONFIG_X86_GENERICARCH
834 generic_apic_probe();
835#endif
836
837 early_quirks();
838
839 /*
840 * Read APIC and some other early information from ACPI tables.
841 */
842 acpi_boot_init();
843
844#if defined(CONFIG_X86_MPPARSE) || defined(CONFIG_X86_VISWS)
845 /*
846 * get boot-time SMP configuration:
847 */
848 if (smp_found_config)
849 get_smp_config();
850#endif
138 851
852 prefill_possible_map();
853#ifdef CONFIG_X86_64
854 init_cpu_to_node();
855#endif
856
857#ifdef CONFIG_X86_NUMAQ
858 /*
859 * need to check online nodes num, call it
860 * here before time_init/tsc_init
861 */
862 numaq_tsc_disable();
863#endif
864
865 init_apic_mappings();
866 ioapic_init_mappings();
867
868#if defined(CONFIG_SMP) && defined(CONFIG_X86_PC) && defined(CONFIG_X86_32)
869 if (def_to_bigsmp)
870 printk(KERN_WARNING "More than 8 CPUs detected and "
871 "CONFIG_X86_PC cannot handle it.\nUse "
872 "CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
873#endif
874 kvm_guest_init();
875
876 e820_reserve_resources();
877 e820_mark_nosave_regions(max_low_pfn);
878
879#ifdef CONFIG_X86_32
880 request_resource(&iomem_resource, &video_ram_resource);
881#endif
882 reserve_standard_io_resources();
883
884 e820_setup_gap();
885
886#ifdef CONFIG_VT
887#if defined(CONFIG_VGA_CONSOLE)
888 if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
889 conswitchp = &vga_con;
890#elif defined(CONFIG_DUMMY_CONSOLE)
891 conswitchp = &dummy_con;
139#endif 892#endif
893#endif
894}
diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
deleted file mode 100644
index aee0e8200777..000000000000
--- a/arch/x86/kernel/setup64.c
+++ /dev/null
@@ -1,287 +0,0 @@
1/*
2 * X86-64 specific CPU setup.
3 * Copyright (C) 1995 Linus Torvalds
4 * Copyright 2001, 2002, 2003 SuSE Labs / Andi Kleen.
5 * See setup.c for older changelog.
6 */
7#include <linux/init.h>
8#include <linux/kernel.h>
9#include <linux/sched.h>
10#include <linux/string.h>
11#include <linux/bootmem.h>
12#include <linux/bitops.h>
13#include <linux/module.h>
14#include <linux/kgdb.h>
15#include <asm/pda.h>
16#include <asm/pgtable.h>
17#include <asm/processor.h>
18#include <asm/desc.h>
19#include <asm/atomic.h>
20#include <asm/mmu_context.h>
21#include <asm/smp.h>
22#include <asm/i387.h>
23#include <asm/percpu.h>
24#include <asm/proto.h>
25#include <asm/sections.h>
26#include <asm/setup.h>
27#include <asm/genapic.h>
28
29#ifndef CONFIG_DEBUG_BOOT_PARAMS
30struct boot_params __initdata boot_params;
31#else
32struct boot_params boot_params;
33#endif
34
35cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
36
37struct x8664_pda *_cpu_pda[NR_CPUS] __read_mostly;
38EXPORT_SYMBOL(_cpu_pda);
39struct x8664_pda boot_cpu_pda[NR_CPUS] __cacheline_aligned;
40
41struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
42
43char boot_cpu_stack[IRQSTACKSIZE] __attribute__((section(".bss.page_aligned")));
44
45unsigned long __supported_pte_mask __read_mostly = ~0UL;
46EXPORT_SYMBOL_GPL(__supported_pte_mask);
47
48static int do_not_nx __cpuinitdata = 0;
49
50/* noexec=on|off
51Control non executable mappings for 64bit processes.
52
53on Enable(default)
54off Disable
55*/
56static int __init nonx_setup(char *str)
57{
58 if (!str)
59 return -EINVAL;
60 if (!strncmp(str, "on", 2)) {
61 __supported_pte_mask |= _PAGE_NX;
62 do_not_nx = 0;
63 } else if (!strncmp(str, "off", 3)) {
64 do_not_nx = 1;
65 __supported_pte_mask &= ~_PAGE_NX;
66 }
67 return 0;
68}
69early_param("noexec", nonx_setup);
70
71int force_personality32 = 0;
72
73/* noexec32=on|off
74Control non executable heap for 32bit processes.
75To control the stack too use noexec=off
76
77on PROT_READ does not imply PROT_EXEC for 32bit processes (default)
78off PROT_READ implies PROT_EXEC
79*/
80static int __init nonx32_setup(char *str)
81{
82 if (!strcmp(str, "on"))
83 force_personality32 &= ~READ_IMPLIES_EXEC;
84 else if (!strcmp(str, "off"))
85 force_personality32 |= READ_IMPLIES_EXEC;
86 return 1;
87}
88__setup("noexec32=", nonx32_setup);
89
90void pda_init(int cpu)
91{
92 struct x8664_pda *pda = cpu_pda(cpu);
93
94 /* Setup up data that may be needed in __get_free_pages early */
95 asm volatile("movl %0,%%fs ; movl %0,%%gs" :: "r" (0));
96 /* Memory clobbers used to order PDA accessed */
97 mb();
98 wrmsrl(MSR_GS_BASE, pda);
99 mb();
100
101 pda->cpunumber = cpu;
102 pda->irqcount = -1;
103 pda->kernelstack =
104 (unsigned long)stack_thread_info() - PDA_STACKOFFSET + THREAD_SIZE;
105 pda->active_mm = &init_mm;
106 pda->mmu_state = 0;
107
108 if (cpu == 0) {
109 /* others are initialized in smpboot.c */
110 pda->pcurrent = &init_task;
111 pda->irqstackptr = boot_cpu_stack;
112 } else {
113 pda->irqstackptr = (char *)
114 __get_free_pages(GFP_ATOMIC, IRQSTACK_ORDER);
115 if (!pda->irqstackptr)
116 panic("cannot allocate irqstack for cpu %d", cpu);
117 }
118
119
120 pda->irqstackptr += IRQSTACKSIZE-64;
121}
122
123char boot_exception_stacks[(N_EXCEPTION_STACKS - 1) * EXCEPTION_STKSZ + DEBUG_STKSZ]
124__attribute__((section(".bss.page_aligned")));
125
126extern asmlinkage void ignore_sysret(void);
127
128/* May not be marked __init: used by software suspend */
129void syscall_init(void)
130{
131 /*
132 * LSTAR and STAR live in a bit strange symbiosis.
133 * They both write to the same internal register. STAR allows to set CS/DS
134 * but only a 32bit target. LSTAR sets the 64bit rip.
135 */
136 wrmsrl(MSR_STAR, ((u64)__USER32_CS)<<48 | ((u64)__KERNEL_CS)<<32);
137 wrmsrl(MSR_LSTAR, system_call);
138 wrmsrl(MSR_CSTAR, ignore_sysret);
139
140#ifdef CONFIG_IA32_EMULATION
141 syscall32_cpu_init ();
142#endif
143
144 /* Flags to clear on syscall */
145 wrmsrl(MSR_SYSCALL_MASK,
146 X86_EFLAGS_TF|X86_EFLAGS_DF|X86_EFLAGS_IF|X86_EFLAGS_IOPL);
147}
148
149void __cpuinit check_efer(void)
150{
151 unsigned long efer;
152
153 rdmsrl(MSR_EFER, efer);
154 if (!(efer & EFER_NX) || do_not_nx) {
155 __supported_pte_mask &= ~_PAGE_NX;
156 }
157}
158
159unsigned long kernel_eflags;
160
161/*
162 * Copies of the original ist values from the tss are only accessed during
163 * debugging, no special alignment required.
164 */
165DEFINE_PER_CPU(struct orig_ist, orig_ist);
166
167/*
168 * cpu_init() initializes state that is per-CPU. Some data is already
169 * initialized (naturally) in the bootstrap process, such as the GDT
170 * and IDT. We reload them nevertheless, this function acts as a
171 * 'CPU state barrier', nothing should get across.
172 * A lot of state is already set up in PDA init.
173 */
174void __cpuinit cpu_init (void)
175{
176 int cpu = stack_smp_processor_id();
177 struct tss_struct *t = &per_cpu(init_tss, cpu);
178 struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu);
179 unsigned long v;
180 char *estacks = NULL;
181 struct task_struct *me;
182 int i;
183
184 /* CPU 0 is initialised in head64.c */
185 if (cpu != 0) {
186 pda_init(cpu);
187 } else
188 estacks = boot_exception_stacks;
189
190 me = current;
191
192 if (cpu_test_and_set(cpu, cpu_initialized))
193 panic("CPU#%d already initialized!\n", cpu);
194
195 printk("Initializing CPU#%d\n", cpu);
196
197 clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
198
199 /*
200 * Initialize the per-CPU GDT with the boot GDT,
201 * and set up the GDT descriptor:
202 */
203 if (cpu)
204 memcpy(get_cpu_gdt_table(cpu), cpu_gdt_table, GDT_SIZE);
205
206 cpu_gdt_descr[cpu].size = GDT_SIZE;
207 load_gdt((const struct desc_ptr *)&cpu_gdt_descr[cpu]);
208 load_idt((const struct desc_ptr *)&idt_descr);
209
210 memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8);
211 syscall_init();
212
213 wrmsrl(MSR_FS_BASE, 0);
214 wrmsrl(MSR_KERNEL_GS_BASE, 0);
215 barrier();
216
217 check_efer();
218
219 /*
220 * set up and load the per-CPU TSS
221 */
222 for (v = 0; v < N_EXCEPTION_STACKS; v++) {
223 static const unsigned int order[N_EXCEPTION_STACKS] = {
224 [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER,
225 [DEBUG_STACK - 1] = DEBUG_STACK_ORDER
226 };
227 if (cpu) {
228 estacks = (char *)__get_free_pages(GFP_ATOMIC, order[v]);
229 if (!estacks)
230 panic("Cannot allocate exception stack %ld %d\n",
231 v, cpu);
232 }
233 estacks += PAGE_SIZE << order[v];
234 orig_ist->ist[v] = t->x86_tss.ist[v] = (unsigned long)estacks;
235 }
236
237 t->x86_tss.io_bitmap_base = offsetof(struct tss_struct, io_bitmap);
238 /*
239 * <= is required because the CPU will access up to
240 * 8 bits beyond the end of the IO permission bitmap.
241 */
242 for (i = 0; i <= IO_BITMAP_LONGS; i++)
243 t->io_bitmap[i] = ~0UL;
244
245 atomic_inc(&init_mm.mm_count);
246 me->active_mm = &init_mm;
247 if (me->mm)
248 BUG();
249 enter_lazy_tlb(&init_mm, me);
250
251 set_tss_desc(cpu, t);
252 load_TR_desc();
253 load_LDT(&init_mm.context);
254
255#ifdef CONFIG_KGDB
256 /*
257 * If the kgdb is connected no debug regs should be altered. This
258 * is only applicable when KGDB and a KGDB I/O module are built
259 * into the kernel and you are using early debugging with
260 * kgdbwait. KGDB will control the kernel HW breakpoint registers.
261 */
262 if (kgdb_connected && arch_kgdb_ops.correct_hw_break)
263 arch_kgdb_ops.correct_hw_break();
264 else {
265#endif
266 /*
267 * Clear all 6 debug registers:
268 */
269
270 set_debugreg(0UL, 0);
271 set_debugreg(0UL, 1);
272 set_debugreg(0UL, 2);
273 set_debugreg(0UL, 3);
274 set_debugreg(0UL, 6);
275 set_debugreg(0UL, 7);
276#ifdef CONFIG_KGDB
277 /* If the kgdb is connected no debug regs should be altered. */
278 }
279#endif
280
281 fpu_init();
282
283 raw_local_save_flags(kernel_eflags);
284
285 if (is_uv_system())
286 uv_cpu_init();
287}
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
deleted file mode 100644
index 2c5f8b213e86..000000000000
--- a/arch/x86/kernel/setup_32.c
+++ /dev/null
@@ -1,958 +0,0 @@
1/*
2 * Copyright (C) 1995 Linus Torvalds
3 *
4 * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
5 *
6 * Memory region support
7 * David Parsons <orc@pell.chi.il.us>, July-August 1999
8 *
9 * Added E820 sanitization routine (removes overlapping memory regions);
10 * Brian Moyle <bmoyle@mvista.com>, February 2001
11 *
12 * Moved CPU detection code to cpu/${cpu}.c
13 * Patrick Mochel <mochel@osdl.org>, March 2002
14 *
15 * Provisions for empty E820 memory regions (reported by certain BIOSes).
16 * Alex Achenbach <xela@slit.de>, December 2002.
17 *
18 */
19
20/*
21 * This file handles the architecture-dependent parts of initialization
22 */
23
24#include <linux/sched.h>
25#include <linux/mm.h>
26#include <linux/mmzone.h>
27#include <linux/screen_info.h>
28#include <linux/ioport.h>
29#include <linux/acpi.h>
30#include <linux/apm_bios.h>
31#include <linux/initrd.h>
32#include <linux/bootmem.h>
33#include <linux/seq_file.h>
34#include <linux/console.h>
35#include <linux/mca.h>
36#include <linux/root_dev.h>
37#include <linux/highmem.h>
38#include <linux/module.h>
39#include <linux/efi.h>
40#include <linux/init.h>
41#include <linux/edd.h>
42#include <linux/iscsi_ibft.h>
43#include <linux/nodemask.h>
44#include <linux/kexec.h>
45#include <linux/crash_dump.h>
46#include <linux/dmi.h>
47#include <linux/pfn.h>
48#include <linux/pci.h>
49#include <linux/init_ohci1394_dma.h>
50#include <linux/kvm_para.h>
51
52#include <video/edid.h>
53
54#include <asm/mtrr.h>
55#include <asm/apic.h>
56#include <asm/e820.h>
57#include <asm/mpspec.h>
58#include <asm/mmzone.h>
59#include <asm/setup.h>
60#include <asm/arch_hooks.h>
61#include <asm/sections.h>
62#include <asm/io_apic.h>
63#include <asm/ist.h>
64#include <asm/io.h>
65#include <asm/vmi.h>
66#include <setup_arch.h>
67#include <asm/bios_ebda.h>
68#include <asm/cacheflush.h>
69#include <asm/processor.h>
70
71/* This value is set up by the early boot code to point to the value
72 immediately after the boot time page tables. It contains a *physical*
73 address, and must not be in the .bss segment! */
74unsigned long init_pg_tables_end __initdata = ~0UL;
75
76/*
77 * Machine setup..
78 */
79static struct resource data_resource = {
80 .name = "Kernel data",
81 .start = 0,
82 .end = 0,
83 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
84};
85
86static struct resource code_resource = {
87 .name = "Kernel code",
88 .start = 0,
89 .end = 0,
90 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
91};
92
93static struct resource bss_resource = {
94 .name = "Kernel bss",
95 .start = 0,
96 .end = 0,
97 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
98};
99
100static struct resource video_ram_resource = {
101 .name = "Video RAM area",
102 .start = 0xa0000,
103 .end = 0xbffff,
104 .flags = IORESOURCE_BUSY | IORESOURCE_MEM
105};
106
107static struct resource standard_io_resources[] = { {
108 .name = "dma1",
109 .start = 0x0000,
110 .end = 0x001f,
111 .flags = IORESOURCE_BUSY | IORESOURCE_IO
112}, {
113 .name = "pic1",
114 .start = 0x0020,
115 .end = 0x0021,
116 .flags = IORESOURCE_BUSY | IORESOURCE_IO
117}, {
118 .name = "timer0",
119 .start = 0x0040,
120 .end = 0x0043,
121 .flags = IORESOURCE_BUSY | IORESOURCE_IO
122}, {
123 .name = "timer1",
124 .start = 0x0050,
125 .end = 0x0053,
126 .flags = IORESOURCE_BUSY | IORESOURCE_IO
127}, {
128 .name = "keyboard",
129 .start = 0x0060,
130 .end = 0x0060,
131 .flags = IORESOURCE_BUSY | IORESOURCE_IO
132}, {
133 .name = "keyboard",
134 .start = 0x0064,
135 .end = 0x0064,
136 .flags = IORESOURCE_BUSY | IORESOURCE_IO
137}, {
138 .name = "dma page reg",
139 .start = 0x0080,
140 .end = 0x008f,
141 .flags = IORESOURCE_BUSY | IORESOURCE_IO
142}, {
143 .name = "pic2",
144 .start = 0x00a0,
145 .end = 0x00a1,
146 .flags = IORESOURCE_BUSY | IORESOURCE_IO
147}, {
148 .name = "dma2",
149 .start = 0x00c0,
150 .end = 0x00df,
151 .flags = IORESOURCE_BUSY | IORESOURCE_IO
152}, {
153 .name = "fpu",
154 .start = 0x00f0,
155 .end = 0x00ff,
156 .flags = IORESOURCE_BUSY | IORESOURCE_IO
157} };
158
159/* cpu data as detected by the assembly code in head.S */
160struct cpuinfo_x86 new_cpu_data __cpuinitdata = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
161/* common cpu data for all cpus */
162struct cpuinfo_x86 boot_cpu_data __read_mostly = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
163EXPORT_SYMBOL(boot_cpu_data);
164
165unsigned int def_to_bigsmp;
166
167#ifndef CONFIG_X86_PAE
168unsigned long mmu_cr4_features;
169#else
170unsigned long mmu_cr4_features = X86_CR4_PAE;
171#endif
172
173/* for MCA, but anyone else can use it if they want */
174unsigned int machine_id;
175unsigned int machine_submodel_id;
176unsigned int BIOS_revision;
177
178/* Boot loader ID as an integer, for the benefit of proc_dointvec */
179int bootloader_type;
180
181/* user-defined highmem size */
182static unsigned int highmem_pages = -1;
183
184/*
185 * Setup options
186 */
187struct screen_info screen_info;
188EXPORT_SYMBOL(screen_info);
189struct apm_info apm_info;
190EXPORT_SYMBOL(apm_info);
191struct edid_info edid_info;
192EXPORT_SYMBOL_GPL(edid_info);
193struct ist_info ist_info;
194#if defined(CONFIG_X86_SPEEDSTEP_SMI) || \
195 defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE)
196EXPORT_SYMBOL(ist_info);
197#endif
198
199extern void early_cpu_init(void);
200extern int root_mountflags;
201
202unsigned long saved_video_mode;
203
204#define RAMDISK_IMAGE_START_MASK 0x07FF
205#define RAMDISK_PROMPT_FLAG 0x8000
206#define RAMDISK_LOAD_FLAG 0x4000
207
208static char __initdata command_line[COMMAND_LINE_SIZE];
209
210#ifndef CONFIG_DEBUG_BOOT_PARAMS
211struct boot_params __initdata boot_params;
212#else
213struct boot_params boot_params;
214#endif
215
216#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
217struct edd edd;
218#ifdef CONFIG_EDD_MODULE
219EXPORT_SYMBOL(edd);
220#endif
221/**
222 * copy_edd() - Copy the BIOS EDD information
223 * from boot_params into a safe place.
224 *
225 */
226static inline void copy_edd(void)
227{
228 memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
229 sizeof(edd.mbr_signature));
230 memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info));
231 edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries;
232 edd.edd_info_nr = boot_params.eddbuf_entries;
233}
234#else
235static inline void copy_edd(void)
236{
237}
238#endif
239
240int __initdata user_defined_memmap;
241
242/*
243 * "mem=nopentium" disables the 4MB page tables.
244 * "mem=XXX[kKmM]" defines a memory region from HIGH_MEM
245 * to <mem>, overriding the bios size.
246 * "memmap=XXX[KkmM]@XXX[KkmM]" defines a memory region from
247 * <start> to <start>+<mem>, overriding the bios size.
248 *
249 * HPA tells me bootloaders need to parse mem=, so no new
250 * option should be mem= [also see Documentation/i386/boot.txt]
251 */
252static int __init parse_mem(char *arg)
253{
254 if (!arg)
255 return -EINVAL;
256
257 if (strcmp(arg, "nopentium") == 0) {
258 setup_clear_cpu_cap(X86_FEATURE_PSE);
259 } else {
260 /* If the user specifies memory size, we
261 * limit the BIOS-provided memory map to
262 * that size. exactmap can be used to specify
263 * the exact map. mem=number can be used to
264 * trim the existing memory map.
265 */
266 unsigned long long mem_size;
267
268 mem_size = memparse(arg, &arg);
269 limit_regions(mem_size);
270 user_defined_memmap = 1;
271 }
272 return 0;
273}
274early_param("mem", parse_mem);
275
276#ifdef CONFIG_PROC_VMCORE
277/* elfcorehdr= specifies the location of elf core header
278 * stored by the crashed kernel.
279 */
280static int __init parse_elfcorehdr(char *arg)
281{
282 if (!arg)
283 return -EINVAL;
284
285 elfcorehdr_addr = memparse(arg, &arg);
286 return 0;
287}
288early_param("elfcorehdr", parse_elfcorehdr);
289#endif /* CONFIG_PROC_VMCORE */
290
291/*
292 * highmem=size forces highmem to be exactly 'size' bytes.
293 * This works even on boxes that have no highmem otherwise.
294 * This also works to reduce highmem size on bigger boxes.
295 */
296static int __init parse_highmem(char *arg)
297{
298 if (!arg)
299 return -EINVAL;
300
301 highmem_pages = memparse(arg, &arg) >> PAGE_SHIFT;
302 return 0;
303}
304early_param("highmem", parse_highmem);
305
306/*
307 * vmalloc=size forces the vmalloc area to be exactly 'size'
308 * bytes. This can be used to increase (or decrease) the
309 * vmalloc area - the default is 128m.
310 */
311static int __init parse_vmalloc(char *arg)
312{
313 if (!arg)
314 return -EINVAL;
315
316 __VMALLOC_RESERVE = memparse(arg, &arg);
317 return 0;
318}
319early_param("vmalloc", parse_vmalloc);
320
321/*
322 * reservetop=size reserves a hole at the top of the kernel address space which
323 * a hypervisor can load into later. Needed for dynamically loaded hypervisors,
324 * so relocating the fixmap can be done before paging initialization.
325 */
326static int __init parse_reservetop(char *arg)
327{
328 unsigned long address;
329
330 if (!arg)
331 return -EINVAL;
332
333 address = memparse(arg, &arg);
334 reserve_top_address(address);
335 return 0;
336}
337early_param("reservetop", parse_reservetop);
338
339/*
340 * Determine low and high memory ranges:
341 */
342unsigned long __init find_max_low_pfn(void)
343{
344 unsigned long max_low_pfn;
345
346 max_low_pfn = max_pfn;
347 if (max_low_pfn > MAXMEM_PFN) {
348 if (highmem_pages == -1)
349 highmem_pages = max_pfn - MAXMEM_PFN;
350 if (highmem_pages + MAXMEM_PFN < max_pfn)
351 max_pfn = MAXMEM_PFN + highmem_pages;
352 if (highmem_pages + MAXMEM_PFN > max_pfn) {
353 printk("only %luMB highmem pages available, ignoring highmem size of %uMB.\n", pages_to_mb(max_pfn - MAXMEM_PFN), pages_to_mb(highmem_pages));
354 highmem_pages = 0;
355 }
356 max_low_pfn = MAXMEM_PFN;
357#ifndef CONFIG_HIGHMEM
358 /* Maximum memory usable is what is directly addressable */
359 printk(KERN_WARNING "Warning only %ldMB will be used.\n",
360 MAXMEM>>20);
361 if (max_pfn > MAX_NONPAE_PFN)
362 printk(KERN_WARNING "Use a HIGHMEM64G enabled kernel.\n");
363 else
364 printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n");
365 max_pfn = MAXMEM_PFN;
366#else /* !CONFIG_HIGHMEM */
367#ifndef CONFIG_HIGHMEM64G
368 if (max_pfn > MAX_NONPAE_PFN) {
369 max_pfn = MAX_NONPAE_PFN;
370 printk(KERN_WARNING "Warning only 4GB will be used.\n");
371 printk(KERN_WARNING "Use a HIGHMEM64G enabled kernel.\n");
372 }
373#endif /* !CONFIG_HIGHMEM64G */
374#endif /* !CONFIG_HIGHMEM */
375 } else {
376 if (highmem_pages == -1)
377 highmem_pages = 0;
378#ifdef CONFIG_HIGHMEM
379 if (highmem_pages >= max_pfn) {
380 printk(KERN_ERR "highmem size specified (%uMB) is bigger than pages available (%luMB)!.\n", pages_to_mb(highmem_pages), pages_to_mb(max_pfn));
381 highmem_pages = 0;
382 }
383 if (highmem_pages) {
384 if (max_low_pfn-highmem_pages < 64*1024*1024/PAGE_SIZE){
385 printk(KERN_ERR "highmem size %uMB results in smaller than 64MB lowmem, ignoring it.\n", pages_to_mb(highmem_pages));
386 highmem_pages = 0;
387 }
388 max_low_pfn -= highmem_pages;
389 }
390#else
391 if (highmem_pages)
392 printk(KERN_ERR "ignoring highmem size on non-highmem kernel!\n");
393#endif
394 }
395 return max_low_pfn;
396}
397
398#define BIOS_LOWMEM_KILOBYTES 0x413
399
400/*
401 * The BIOS places the EBDA/XBDA at the top of conventional
402 * memory, and usually decreases the reported amount of
403 * conventional memory (int 0x12) too. This also contains a
404 * workaround for Dell systems that neglect to reserve EBDA.
405 * The same workaround also avoids a problem with the AMD768MPX
406 * chipset: reserve a page before VGA to prevent PCI prefetch
407 * into it (errata #56). Usually the page is reserved anyways,
408 * unless you have no PS/2 mouse plugged in.
409 */
410static void __init reserve_ebda_region(void)
411{
412 unsigned int lowmem, ebda_addr;
413
414 /* To determine the position of the EBDA and the */
415 /* end of conventional memory, we need to look at */
416 /* the BIOS data area. In a paravirtual environment */
417 /* that area is absent. We'll just have to assume */
418 /* that the paravirt case can handle memory setup */
419 /* correctly, without our help. */
420 if (paravirt_enabled())
421 return;
422
423 /* end of low (conventional) memory */
424 lowmem = *(unsigned short *)__va(BIOS_LOWMEM_KILOBYTES);
425 lowmem <<= 10;
426
427 /* start of EBDA area */
428 ebda_addr = get_bios_ebda();
429
430 /* Fixup: bios puts an EBDA in the top 64K segment */
431 /* of conventional memory, but does not adjust lowmem. */
432 if ((lowmem - ebda_addr) <= 0x10000)
433 lowmem = ebda_addr;
434
435 /* Fixup: bios does not report an EBDA at all. */
436 /* Some old Dells seem to need 4k anyhow (bugzilla 2990) */
437 if ((ebda_addr == 0) && (lowmem >= 0x9f000))
438 lowmem = 0x9f000;
439
440 /* Paranoia: should never happen, but... */
441 if ((lowmem == 0) || (lowmem >= 0x100000))
442 lowmem = 0x9f000;
443
444 /* reserve all memory between lowmem and the 1MB mark */
445 reserve_bootmem(lowmem, 0x100000 - lowmem, BOOTMEM_DEFAULT);
446}
447
448#ifndef CONFIG_NEED_MULTIPLE_NODES
449static void __init setup_bootmem_allocator(void);
450static unsigned long __init setup_memory(void)
451{
452 /*
453 * partially used pages are not usable - thus
454 * we are rounding upwards:
455 */
456 min_low_pfn = PFN_UP(init_pg_tables_end);
457
458 max_low_pfn = find_max_low_pfn();
459
460#ifdef CONFIG_HIGHMEM
461 highstart_pfn = highend_pfn = max_pfn;
462 if (max_pfn > max_low_pfn) {
463 highstart_pfn = max_low_pfn;
464 }
465 printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
466 pages_to_mb(highend_pfn - highstart_pfn));
467 num_physpages = highend_pfn;
468 high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
469#else
470 num_physpages = max_low_pfn;
471 high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
472#endif
473#ifdef CONFIG_FLATMEM
474 max_mapnr = num_physpages;
475#endif
476 printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
477 pages_to_mb(max_low_pfn));
478
479 setup_bootmem_allocator();
480
481 return max_low_pfn;
482}
483
484static void __init zone_sizes_init(void)
485{
486 unsigned long max_zone_pfns[MAX_NR_ZONES];
487 memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
488 max_zone_pfns[ZONE_DMA] =
489 virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
490 max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
491#ifdef CONFIG_HIGHMEM
492 max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
493 add_active_range(0, 0, highend_pfn);
494#else
495 add_active_range(0, 0, max_low_pfn);
496#endif
497
498 free_area_init_nodes(max_zone_pfns);
499}
500#else
501extern unsigned long __init setup_memory(void);
502extern void zone_sizes_init(void);
503#endif /* !CONFIG_NEED_MULTIPLE_NODES */
504
505static inline unsigned long long get_total_mem(void)
506{
507 unsigned long long total;
508
509 total = max_low_pfn - min_low_pfn;
510#ifdef CONFIG_HIGHMEM
511 total += highend_pfn - highstart_pfn;
512#endif
513
514 return total << PAGE_SHIFT;
515}
516
517#ifdef CONFIG_KEXEC
518static void __init reserve_crashkernel(void)
519{
520 unsigned long long total_mem;
521 unsigned long long crash_size, crash_base;
522 int ret;
523
524 total_mem = get_total_mem();
525
526 ret = parse_crashkernel(boot_command_line, total_mem,
527 &crash_size, &crash_base);
528 if (ret == 0 && crash_size > 0) {
529 if (crash_base > 0) {
530 printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
531 "for crashkernel (System RAM: %ldMB)\n",
532 (unsigned long)(crash_size >> 20),
533 (unsigned long)(crash_base >> 20),
534 (unsigned long)(total_mem >> 20));
535 crashk_res.start = crash_base;
536 crashk_res.end = crash_base + crash_size - 1;
537 reserve_bootmem(crash_base, crash_size,
538 BOOTMEM_DEFAULT);
539 } else
540 printk(KERN_INFO "crashkernel reservation failed - "
541 "you have to specify a base address\n");
542 }
543}
544#else
545static inline void __init reserve_crashkernel(void)
546{}
547#endif
548
549#ifdef CONFIG_BLK_DEV_INITRD
550
551static bool do_relocate_initrd = false;
552
553static void __init reserve_initrd(void)
554{
555 unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
556 unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
557 unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
558 unsigned long end_of_lowmem = max_low_pfn << PAGE_SHIFT;
559 unsigned long ramdisk_here;
560
561 initrd_start = 0;
562
563 if (!boot_params.hdr.type_of_loader ||
564 !ramdisk_image || !ramdisk_size)
565 return; /* No initrd provided by bootloader */
566
567 if (ramdisk_end < ramdisk_image) {
568 printk(KERN_ERR "initrd wraps around end of memory, "
569 "disabling initrd\n");
570 return;
571 }
572 if (ramdisk_size >= end_of_lowmem/2) {
573 printk(KERN_ERR "initrd too large to handle, "
574 "disabling initrd\n");
575 return;
576 }
577 if (ramdisk_end <= end_of_lowmem) {
578 /* All in lowmem, easy case */
579 reserve_bootmem(ramdisk_image, ramdisk_size, BOOTMEM_DEFAULT);
580 initrd_start = ramdisk_image + PAGE_OFFSET;
581 initrd_end = initrd_start+ramdisk_size;
582 return;
583 }
584
585 /* We need to move the initrd down into lowmem */
586 ramdisk_here = (end_of_lowmem - ramdisk_size) & PAGE_MASK;
587
588 /* Note: this includes all the lowmem currently occupied by
589 the initrd, we rely on that fact to keep the data intact. */
590 reserve_bootmem(ramdisk_here, ramdisk_size, BOOTMEM_DEFAULT);
591 initrd_start = ramdisk_here + PAGE_OFFSET;
592 initrd_end = initrd_start + ramdisk_size;
593
594 do_relocate_initrd = true;
595}
596
597#define MAX_MAP_CHUNK (NR_FIX_BTMAPS << PAGE_SHIFT)
598
599static void __init relocate_initrd(void)
600{
601 unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
602 unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
603 unsigned long end_of_lowmem = max_low_pfn << PAGE_SHIFT;
604 unsigned long ramdisk_here;
605 unsigned long slop, clen, mapaddr;
606 char *p, *q;
607
608 if (!do_relocate_initrd)
609 return;
610
611 ramdisk_here = initrd_start - PAGE_OFFSET;
612
613 q = (char *)initrd_start;
614
615 /* Copy any lowmem portion of the initrd */
616 if (ramdisk_image < end_of_lowmem) {
617 clen = end_of_lowmem - ramdisk_image;
618 p = (char *)__va(ramdisk_image);
619 memcpy(q, p, clen);
620 q += clen;
621 ramdisk_image += clen;
622 ramdisk_size -= clen;
623 }
624
625 /* Copy the highmem portion of the initrd */
626 while (ramdisk_size) {
627 slop = ramdisk_image & ~PAGE_MASK;
628 clen = ramdisk_size;
629 if (clen > MAX_MAP_CHUNK-slop)
630 clen = MAX_MAP_CHUNK-slop;
631 mapaddr = ramdisk_image & PAGE_MASK;
632 p = early_ioremap(mapaddr, clen+slop);
633 memcpy(q, p+slop, clen);
634 early_iounmap(p, clen+slop);
635 q += clen;
636 ramdisk_image += clen;
637 ramdisk_size -= clen;
638 }
639}
640
641#endif /* CONFIG_BLK_DEV_INITRD */
642
643void __init setup_bootmem_allocator(void)
644{
645 unsigned long bootmap_size;
646 /*
647 * Initialize the boot-time allocator (with low memory only):
648 */
649 bootmap_size = init_bootmem(min_low_pfn, max_low_pfn);
650
651 register_bootmem_low_pages(max_low_pfn);
652
653 /*
654 * Reserve the bootmem bitmap itself as well. We do this in two
655 * steps (first step was init_bootmem()) because this catches
656 * the (very unlikely) case of us accidentally initializing the
657 * bootmem allocator with an invalid RAM area.
658 */
659 reserve_bootmem(__pa_symbol(_text), (PFN_PHYS(min_low_pfn) +
660 bootmap_size + PAGE_SIZE-1) - __pa_symbol(_text),
661 BOOTMEM_DEFAULT);
662
663 /*
664 * reserve physical page 0 - it's a special BIOS page on many boxes,
665 * enabling clean reboots, SMP operation, laptop functions.
666 */
667 reserve_bootmem(0, PAGE_SIZE, BOOTMEM_DEFAULT);
668
669 /* reserve EBDA region */
670 reserve_ebda_region();
671
672#ifdef CONFIG_SMP
673 /*
674 * But first pinch a few for the stack/trampoline stuff
675 * FIXME: Don't need the extra page at 4K, but need to fix
676 * trampoline before removing it. (see the GDT stuff)
677 */
678 reserve_bootmem(PAGE_SIZE, PAGE_SIZE, BOOTMEM_DEFAULT);
679#endif
680#ifdef CONFIG_ACPI_SLEEP
681 /*
682 * Reserve low memory region for sleep support.
683 */
684 acpi_reserve_bootmem();
685#endif
686#ifdef CONFIG_X86_FIND_SMP_CONFIG
687 /*
688 * Find and reserve possible boot-time SMP configuration:
689 */
690 find_smp_config();
691#endif
692#ifdef CONFIG_BLK_DEV_INITRD
693 reserve_initrd();
694#endif
695 numa_kva_reserve();
696 reserve_crashkernel();
697
698 reserve_ibft_region();
699}
700
701/*
702 * The node 0 pgdat is initialized before all of these because
703 * it's needed for bootmem. node>0 pgdats have their virtual
704 * space allocated before the pagetables are in place to access
705 * them, so they can't be cleared then.
706 *
707 * This should all compile down to nothing when NUMA is off.
708 */
709static void __init remapped_pgdat_init(void)
710{
711 int nid;
712
713 for_each_online_node(nid) {
714 if (nid != 0)
715 memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
716 }
717}
718
719#ifdef CONFIG_MCA
720static void set_mca_bus(int x)
721{
722 MCA_bus = x;
723}
724#else
725static void set_mca_bus(int x) { }
726#endif
727
728/* Overridden in paravirt.c if CONFIG_PARAVIRT */
729char * __init __attribute__((weak)) memory_setup(void)
730{
731 return machine_specific_memory_setup();
732}
733
734#ifdef CONFIG_NUMA
735/*
736 * In the golden day, when everything among i386 and x86_64 will be
737 * integrated, this will not live here
738 */
739void *x86_cpu_to_node_map_early_ptr;
740int x86_cpu_to_node_map_init[NR_CPUS] = {
741 [0 ... NR_CPUS-1] = NUMA_NO_NODE
742};
743DEFINE_PER_CPU(int, x86_cpu_to_node_map) = NUMA_NO_NODE;
744#endif
745
746/*
747 * Determine if we were loaded by an EFI loader. If so, then we have also been
748 * passed the efi memmap, systab, etc., so we should use these data structures
749 * for initialization. Note, the efi init code path is determined by the
750 * global efi_enabled. This allows the same kernel image to be used on existing
751 * systems (with a traditional BIOS) as well as on EFI systems.
752 */
753void __init setup_arch(char **cmdline_p)
754{
755 unsigned long max_low_pfn;
756
757 memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
758 pre_setup_arch_hook();
759 early_cpu_init();
760 early_ioremap_init();
761
762#ifdef CONFIG_EFI
763 if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
764 "EL32", 4))
765 efi_enabled = 1;
766#endif
767
768 ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
769 screen_info = boot_params.screen_info;
770 edid_info = boot_params.edid_info;
771 apm_info.bios = boot_params.apm_bios_info;
772 ist_info = boot_params.ist_info;
773 saved_video_mode = boot_params.hdr.vid_mode;
774 if( boot_params.sys_desc_table.length != 0 ) {
775 set_mca_bus(boot_params.sys_desc_table.table[3] & 0x2);
776 machine_id = boot_params.sys_desc_table.table[0];
777 machine_submodel_id = boot_params.sys_desc_table.table[1];
778 BIOS_revision = boot_params.sys_desc_table.table[2];
779 }
780 bootloader_type = boot_params.hdr.type_of_loader;
781
782#ifdef CONFIG_BLK_DEV_RAM
783 rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK;
784 rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
785 rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
786#endif
787 ARCH_SETUP
788
789 printk(KERN_INFO "BIOS-provided physical RAM map:\n");
790 print_memory_map(memory_setup());
791
792 copy_edd();
793
794 if (!boot_params.hdr.root_flags)
795 root_mountflags &= ~MS_RDONLY;
796 init_mm.start_code = (unsigned long) _text;
797 init_mm.end_code = (unsigned long) _etext;
798 init_mm.end_data = (unsigned long) _edata;
799 init_mm.brk = init_pg_tables_end + PAGE_OFFSET;
800
801 code_resource.start = virt_to_phys(_text);
802 code_resource.end = virt_to_phys(_etext)-1;
803 data_resource.start = virt_to_phys(_etext);
804 data_resource.end = virt_to_phys(_edata)-1;
805 bss_resource.start = virt_to_phys(&__bss_start);
806 bss_resource.end = virt_to_phys(&__bss_stop)-1;
807
808 parse_early_param();
809
810 if (user_defined_memmap) {
811 printk(KERN_INFO "user-defined physical RAM map:\n");
812 print_memory_map("user");
813 }
814
815 strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
816 *cmdline_p = command_line;
817
818 if (efi_enabled)
819 efi_init();
820
821 /* update e820 for memory not covered by WB MTRRs */
822 propagate_e820_map();
823 mtrr_bp_init();
824 if (mtrr_trim_uncached_memory(max_pfn))
825 propagate_e820_map();
826
827 max_low_pfn = setup_memory();
828
829#ifdef CONFIG_KVM_CLOCK
830 kvmclock_init();
831#endif
832
833#ifdef CONFIG_VMI
834 /*
835 * Must be after max_low_pfn is determined, and before kernel
836 * pagetables are setup.
837 */
838 vmi_init();
839#endif
840 kvm_guest_init();
841
842 /*
843 * NOTE: before this point _nobody_ is allowed to allocate
844 * any memory using the bootmem allocator. Although the
845 * allocator is now initialised only the first 8Mb of the kernel
846 * virtual address space has been mapped. All allocations before
847 * paging_init() has completed must use the alloc_bootmem_low_pages()
848 * variant (which allocates DMA'able memory) and care must be taken
849 * not to exceed the 8Mb limit.
850 */
851
852#ifdef CONFIG_SMP
853 smp_alloc_memory(); /* AP processor realmode stacks in low memory*/
854#endif
855 paging_init();
856
857 /*
858 * NOTE: On x86-32, only from this point on, fixmaps are ready for use.
859 */
860
861#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
862 if (init_ohci1394_dma_early)
863 init_ohci1394_dma_on_all_controllers();
864#endif
865
866 remapped_pgdat_init();
867 sparse_init();
868 zone_sizes_init();
869
870 /*
871 * NOTE: at this point the bootmem allocator is fully available.
872 */
873
874#ifdef CONFIG_BLK_DEV_INITRD
875 relocate_initrd();
876#endif
877
878 paravirt_post_allocator_init();
879
880 dmi_scan_machine();
881
882 io_delay_init();
883
884#ifdef CONFIG_X86_SMP
885 /*
886 * setup to use the early static init tables during kernel startup
887 * X86_SMP will exclude sub-arches that don't deal well with it.
888 */
889 x86_cpu_to_apicid_early_ptr = (void *)x86_cpu_to_apicid_init;
890 x86_bios_cpu_apicid_early_ptr = (void *)x86_bios_cpu_apicid_init;
891#ifdef CONFIG_NUMA
892 x86_cpu_to_node_map_early_ptr = (void *)x86_cpu_to_node_map_init;
893#endif
894#endif
895
896#ifdef CONFIG_X86_GENERICARCH
897 generic_apic_probe();
898#endif
899
900#ifdef CONFIG_ACPI
901 /*
902 * Parse the ACPI tables for possible boot-time SMP configuration.
903 */
904 acpi_boot_table_init();
905#endif
906
907 early_quirks();
908
909#ifdef CONFIG_ACPI
910 acpi_boot_init();
911
912#if defined(CONFIG_SMP) && defined(CONFIG_X86_PC)
913 if (def_to_bigsmp)
914 printk(KERN_WARNING "More than 8 CPUs detected and "
915 "CONFIG_X86_PC cannot handle it.\nUse "
916 "CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
917#endif
918#endif
919#ifdef CONFIG_X86_LOCAL_APIC
920 if (smp_found_config)
921 get_smp_config();
922#endif
923
924 e820_register_memory();
925 e820_mark_nosave_regions();
926
927#ifdef CONFIG_VT
928#if defined(CONFIG_VGA_CONSOLE)
929 if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
930 conswitchp = &vga_con;
931#elif defined(CONFIG_DUMMY_CONSOLE)
932 conswitchp = &dummy_con;
933#endif
934#endif
935}
936
937/*
938 * Request address space for all standard resources
939 *
940 * This is called just before pcibios_init(), which is also a
941 * subsys_initcall, but is linked in later (in arch/i386/pci/common.c).
942 */
943static int __init request_standard_resources(void)
944{
945 int i;
946
947 printk(KERN_INFO "Setting up standard PCI resources\n");
948 init_iomem_resources(&code_resource, &data_resource, &bss_resource);
949
950 request_resource(&iomem_resource, &video_ram_resource);
951
952 /* request I/O space for devices used on all i[345]86 PCs */
953 for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
954 request_resource(&ioport_resource, &standard_io_resources[i]);
955 return 0;
956}
957
958subsys_initcall(request_standard_resources);
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
deleted file mode 100644
index 6dff1286ad8a..000000000000
--- a/arch/x86/kernel/setup_64.c
+++ /dev/null
@@ -1,1194 +0,0 @@
1/*
2 * Copyright (C) 1995 Linus Torvalds
3 */
4
5/*
6 * This file handles the architecture-dependent parts of initialization
7 */
8
9#include <linux/errno.h>
10#include <linux/sched.h>
11#include <linux/kernel.h>
12#include <linux/mm.h>
13#include <linux/stddef.h>
14#include <linux/unistd.h>
15#include <linux/ptrace.h>
16#include <linux/slab.h>
17#include <linux/user.h>
18#include <linux/screen_info.h>
19#include <linux/ioport.h>
20#include <linux/delay.h>
21#include <linux/init.h>
22#include <linux/initrd.h>
23#include <linux/highmem.h>
24#include <linux/bootmem.h>
25#include <linux/module.h>
26#include <asm/processor.h>
27#include <linux/console.h>
28#include <linux/seq_file.h>
29#include <linux/crash_dump.h>
30#include <linux/root_dev.h>
31#include <linux/pci.h>
32#include <asm/pci-direct.h>
33#include <linux/efi.h>
34#include <linux/acpi.h>
35#include <linux/kallsyms.h>
36#include <linux/edd.h>
37#include <linux/iscsi_ibft.h>
38#include <linux/mmzone.h>
39#include <linux/kexec.h>
40#include <linux/cpufreq.h>
41#include <linux/dmi.h>
42#include <linux/dma-mapping.h>
43#include <linux/ctype.h>
44#include <linux/sort.h>
45#include <linux/uaccess.h>
46#include <linux/init_ohci1394_dma.h>
47#include <linux/kvm_para.h>
48
49#include <asm/mtrr.h>
50#include <asm/uaccess.h>
51#include <asm/system.h>
52#include <asm/vsyscall.h>
53#include <asm/io.h>
54#include <asm/smp.h>
55#include <asm/msr.h>
56#include <asm/desc.h>
57#include <video/edid.h>
58#include <asm/e820.h>
59#include <asm/dma.h>
60#include <asm/gart.h>
61#include <asm/mpspec.h>
62#include <asm/mmu_context.h>
63#include <asm/proto.h>
64#include <asm/setup.h>
65#include <asm/numa.h>
66#include <asm/sections.h>
67#include <asm/dmi.h>
68#include <asm/cacheflush.h>
69#include <asm/mce.h>
70#include <asm/ds.h>
71#include <asm/topology.h>
72#include <asm/trampoline.h>
73#include <asm/pat.h>
74
75#include <mach_apic.h>
76#ifdef CONFIG_PARAVIRT
77#include <asm/paravirt.h>
78#else
79#define ARCH_SETUP
80#endif
81
82/*
83 * Machine setup..
84 */
85
86struct cpuinfo_x86 boot_cpu_data __read_mostly;
87EXPORT_SYMBOL(boot_cpu_data);
88
89__u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata;
90
91unsigned long mmu_cr4_features;
92
93/* Boot loader ID as an integer, for the benefit of proc_dointvec */
94int bootloader_type;
95
96unsigned long saved_video_mode;
97
98int force_mwait __cpuinitdata;
99
100/*
101 * Early DMI memory
102 */
103int dmi_alloc_index;
104char dmi_alloc_data[DMI_MAX_DATA];
105
106/*
107 * Setup options
108 */
109struct screen_info screen_info;
110EXPORT_SYMBOL(screen_info);
111struct sys_desc_table_struct {
112 unsigned short length;
113 unsigned char table[0];
114};
115
116struct edid_info edid_info;
117EXPORT_SYMBOL_GPL(edid_info);
118
119extern int root_mountflags;
120
121char __initdata command_line[COMMAND_LINE_SIZE];
122
123static struct resource standard_io_resources[] = {
124 { .name = "dma1", .start = 0x00, .end = 0x1f,
125 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
126 { .name = "pic1", .start = 0x20, .end = 0x21,
127 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
128 { .name = "timer0", .start = 0x40, .end = 0x43,
129 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
130 { .name = "timer1", .start = 0x50, .end = 0x53,
131 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
132 { .name = "keyboard", .start = 0x60, .end = 0x60,
133 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
134 { .name = "keyboard", .start = 0x64, .end = 0x64,
135 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
136 { .name = "dma page reg", .start = 0x80, .end = 0x8f,
137 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
138 { .name = "pic2", .start = 0xa0, .end = 0xa1,
139 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
140 { .name = "dma2", .start = 0xc0, .end = 0xdf,
141 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
142 { .name = "fpu", .start = 0xf0, .end = 0xff,
143 .flags = IORESOURCE_BUSY | IORESOURCE_IO }
144};
145
146#define IORESOURCE_RAM (IORESOURCE_BUSY | IORESOURCE_MEM)
147
148static struct resource data_resource = {
149 .name = "Kernel data",
150 .start = 0,
151 .end = 0,
152 .flags = IORESOURCE_RAM,
153};
154static struct resource code_resource = {
155 .name = "Kernel code",
156 .start = 0,
157 .end = 0,
158 .flags = IORESOURCE_RAM,
159};
160static struct resource bss_resource = {
161 .name = "Kernel bss",
162 .start = 0,
163 .end = 0,
164 .flags = IORESOURCE_RAM,
165};
166
167static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c);
168
169#ifdef CONFIG_PROC_VMCORE
170/* elfcorehdr= specifies the location of elf core header
171 * stored by the crashed kernel. This option will be passed
172 * by kexec loader to the capture kernel.
173 */
174static int __init setup_elfcorehdr(char *arg)
175{
176 char *end;
177 if (!arg)
178 return -EINVAL;
179 elfcorehdr_addr = memparse(arg, &end);
180 return end > arg ? 0 : -EINVAL;
181}
182early_param("elfcorehdr", setup_elfcorehdr);
183#endif
184
185#ifndef CONFIG_NUMA
186static void __init
187contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
188{
189 unsigned long bootmap_size, bootmap;
190
191 bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
192 bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
193 PAGE_SIZE);
194 if (bootmap == -1L)
195 panic("Cannot find bootmem map of size %ld\n", bootmap_size);
196 bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
197 e820_register_active_regions(0, start_pfn, end_pfn);
198 free_bootmem_with_active_regions(0, end_pfn);
199 early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
200 reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
201}
202#endif
203
204#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
205struct edd edd;
206#ifdef CONFIG_EDD_MODULE
207EXPORT_SYMBOL(edd);
208#endif
209/**
210 * copy_edd() - Copy the BIOS EDD information
211 * from boot_params into a safe place.
212 *
213 */
214static inline void copy_edd(void)
215{
216 memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
217 sizeof(edd.mbr_signature));
218 memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info));
219 edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries;
220 edd.edd_info_nr = boot_params.eddbuf_entries;
221}
222#else
223static inline void copy_edd(void)
224{
225}
226#endif
227
228#ifdef CONFIG_KEXEC
229static void __init reserve_crashkernel(void)
230{
231 unsigned long long total_mem;
232 unsigned long long crash_size, crash_base;
233 int ret;
234
235 total_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
236
237 ret = parse_crashkernel(boot_command_line, total_mem,
238 &crash_size, &crash_base);
239 if (ret == 0 && crash_size) {
240 if (crash_base <= 0) {
241 printk(KERN_INFO "crashkernel reservation failed - "
242 "you have to specify a base address\n");
243 return;
244 }
245
246 if (reserve_bootmem(crash_base, crash_size,
247 BOOTMEM_EXCLUSIVE) < 0) {
248 printk(KERN_INFO "crashkernel reservation failed - "
249 "memory is in use\n");
250 return;
251 }
252
253 printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
254 "for crashkernel (System RAM: %ldMB)\n",
255 (unsigned long)(crash_size >> 20),
256 (unsigned long)(crash_base >> 20),
257 (unsigned long)(total_mem >> 20));
258 crashk_res.start = crash_base;
259 crashk_res.end = crash_base + crash_size - 1;
260 insert_resource(&iomem_resource, &crashk_res);
261 }
262}
263#else
264static inline void __init reserve_crashkernel(void)
265{}
266#endif
267
268/* Overridden in paravirt.c if CONFIG_PARAVIRT */
269void __attribute__((weak)) __init memory_setup(void)
270{
271 machine_specific_memory_setup();
272}
273
274static void __init parse_setup_data(void)
275{
276 struct setup_data *data;
277 unsigned long pa_data;
278
279 if (boot_params.hdr.version < 0x0209)
280 return;
281 pa_data = boot_params.hdr.setup_data;
282 while (pa_data) {
283 data = early_ioremap(pa_data, PAGE_SIZE);
284 switch (data->type) {
285 default:
286 break;
287 }
288#ifndef CONFIG_DEBUG_BOOT_PARAMS
289 free_early(pa_data, pa_data+sizeof(*data)+data->len);
290#endif
291 pa_data = data->next;
292 early_iounmap(data, PAGE_SIZE);
293 }
294}
295
296#ifdef CONFIG_PCI_MMCONFIG
297extern void __cpuinit fam10h_check_enable_mmcfg(void);
298extern void __init check_enable_amd_mmconf_dmi(void);
299#else
300void __cpuinit fam10h_check_enable_mmcfg(void)
301{
302}
303void __init check_enable_amd_mmconf_dmi(void)
304{
305}
306#endif
307
308/*
309 * setup_arch - architecture-specific boot-time initializations
310 *
311 * Note: On x86_64, fixmaps are ready for use even before this is called.
312 */
313void __init setup_arch(char **cmdline_p)
314{
315 unsigned i;
316
317 printk(KERN_INFO "Command line: %s\n", boot_command_line);
318
319 ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
320 screen_info = boot_params.screen_info;
321 edid_info = boot_params.edid_info;
322 saved_video_mode = boot_params.hdr.vid_mode;
323 bootloader_type = boot_params.hdr.type_of_loader;
324
325#ifdef CONFIG_BLK_DEV_RAM
326 rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK;
327 rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
328 rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
329#endif
330#ifdef CONFIG_EFI
331 if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
332 "EL64", 4))
333 efi_enabled = 1;
334#endif
335
336 ARCH_SETUP
337
338 memory_setup();
339 copy_edd();
340
341 if (!boot_params.hdr.root_flags)
342 root_mountflags &= ~MS_RDONLY;
343 init_mm.start_code = (unsigned long) &_text;
344 init_mm.end_code = (unsigned long) &_etext;
345 init_mm.end_data = (unsigned long) &_edata;
346 init_mm.brk = (unsigned long) &_end;
347
348 code_resource.start = virt_to_phys(&_text);
349 code_resource.end = virt_to_phys(&_etext)-1;
350 data_resource.start = virt_to_phys(&_etext);
351 data_resource.end = virt_to_phys(&_edata)-1;
352 bss_resource.start = virt_to_phys(&__bss_start);
353 bss_resource.end = virt_to_phys(&__bss_stop)-1;
354
355 early_identify_cpu(&boot_cpu_data);
356
357 strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
358 *cmdline_p = command_line;
359
360 parse_setup_data();
361
362 parse_early_param();
363
364#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
365 if (init_ohci1394_dma_early)
366 init_ohci1394_dma_on_all_controllers();
367#endif
368
369 finish_e820_parsing();
370
371 /* after parse_early_param, so could debug it */
372 insert_resource(&iomem_resource, &code_resource);
373 insert_resource(&iomem_resource, &data_resource);
374 insert_resource(&iomem_resource, &bss_resource);
375
376 early_gart_iommu_check();
377
378 e820_register_active_regions(0, 0, -1UL);
379 /*
380 * partially used pages are not usable - thus
381 * we are rounding upwards:
382 */
383 end_pfn = e820_end_of_ram();
384 /* update e820 for memory not covered by WB MTRRs */
385 mtrr_bp_init();
386 if (mtrr_trim_uncached_memory(end_pfn)) {
387 e820_register_active_regions(0, 0, -1UL);
388 end_pfn = e820_end_of_ram();
389 }
390
391 num_physpages = end_pfn;
392
393 check_efer();
394
395 max_pfn_mapped = init_memory_mapping(0, (max_pfn_mapped << PAGE_SHIFT));
396 if (efi_enabled)
397 efi_init();
398
399 vsmp_init();
400
401 dmi_scan_machine();
402
403 io_delay_init();
404
405#ifdef CONFIG_KVM_CLOCK
406 kvmclock_init();
407#endif
408
409#ifdef CONFIG_SMP
410 /* setup to use the early static init tables during kernel startup */
411 x86_cpu_to_apicid_early_ptr = (void *)x86_cpu_to_apicid_init;
412 x86_bios_cpu_apicid_early_ptr = (void *)x86_bios_cpu_apicid_init;
413#ifdef CONFIG_NUMA
414 x86_cpu_to_node_map_early_ptr = (void *)x86_cpu_to_node_map_init;
415#endif
416#endif
417
418#ifdef CONFIG_ACPI
419 /*
420 * Initialize the ACPI boot-time table parser (gets the RSDP and SDT).
421 * Call this early for SRAT node setup.
422 */
423 acpi_boot_table_init();
424#endif
425
426 /* How many end-of-memory variables you have, grandma! */
427 max_low_pfn = end_pfn;
428 max_pfn = end_pfn;
429 high_memory = (void *)__va(end_pfn * PAGE_SIZE - 1) + 1;
430
431 /* Remove active ranges so rediscovery with NUMA-awareness happens */
432 remove_all_active_ranges();
433
434#ifdef CONFIG_ACPI_NUMA
435 /*
436 * Parse SRAT to discover nodes.
437 */
438 acpi_numa_init();
439#endif
440
441#ifdef CONFIG_NUMA
442 numa_initmem_init(0, end_pfn);
443#else
444 contig_initmem_init(0, end_pfn);
445#endif
446
447 dma32_reserve_bootmem();
448
449#ifdef CONFIG_ACPI_SLEEP
450 /*
451 * Reserve low memory region for sleep support.
452 */
453 acpi_reserve_bootmem();
454#endif
455
456 if (efi_enabled)
457 efi_reserve_bootmem();
458
459 /*
460 * Find and reserve possible boot-time SMP configuration:
461 */
462 find_smp_config();
463#ifdef CONFIG_BLK_DEV_INITRD
464 if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
465 unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
466 unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
467 unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
468 unsigned long end_of_mem = end_pfn << PAGE_SHIFT;
469
470 if (ramdisk_end <= end_of_mem) {
471 /*
472 * don't need to reserve again, already reserved early
473 * in x86_64_start_kernel, and early_res_to_bootmem
474 * convert that to reserved in bootmem
475 */
476 initrd_start = ramdisk_image + PAGE_OFFSET;
477 initrd_end = initrd_start+ramdisk_size;
478 } else {
479 free_bootmem(ramdisk_image, ramdisk_size);
480 printk(KERN_ERR "initrd extends beyond end of memory "
481 "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
482 ramdisk_end, end_of_mem);
483 initrd_start = 0;
484 }
485 }
486#endif
487 reserve_crashkernel();
488
489 reserve_ibft_region();
490
491 paging_init();
492 map_vsyscall();
493
494 early_quirks();
495
496#ifdef CONFIG_ACPI
497 /*
498 * Read APIC and some other early information from ACPI tables.
499 */
500 acpi_boot_init();
501#endif
502
503 init_cpu_to_node();
504
505 /*
506 * get boot-time SMP configuration:
507 */
508 if (smp_found_config)
509 get_smp_config();
510 init_apic_mappings();
511 ioapic_init_mappings();
512
513 kvm_guest_init();
514
515 /*
516 * We trust e820 completely. No explicit ROM probing in memory.
517 */
518 e820_reserve_resources();
519 e820_mark_nosave_regions();
520
521 /* request I/O space for devices used on all i[345]86 PCs */
522 for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
523 request_resource(&ioport_resource, &standard_io_resources[i]);
524
525 e820_setup_gap();
526
527#ifdef CONFIG_VT
528#if defined(CONFIG_VGA_CONSOLE)
529 if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
530 conswitchp = &vga_con;
531#elif defined(CONFIG_DUMMY_CONSOLE)
532 conswitchp = &dummy_con;
533#endif
534#endif
535
536 /* do this before identify_cpu for boot cpu */
537 check_enable_amd_mmconf_dmi();
538}
539
540static int __cpuinit get_model_name(struct cpuinfo_x86 *c)
541{
542 unsigned int *v;
543
544 if (c->extended_cpuid_level < 0x80000004)
545 return 0;
546
547 v = (unsigned int *) c->x86_model_id;
548 cpuid(0x80000002, &v[0], &v[1], &v[2], &v[3]);
549 cpuid(0x80000003, &v[4], &v[5], &v[6], &v[7]);
550 cpuid(0x80000004, &v[8], &v[9], &v[10], &v[11]);
551 c->x86_model_id[48] = 0;
552 return 1;
553}
554
555
556static void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
557{
558 unsigned int n, dummy, eax, ebx, ecx, edx;
559
560 n = c->extended_cpuid_level;
561
562 if (n >= 0x80000005) {
563 cpuid(0x80000005, &dummy, &ebx, &ecx, &edx);
564 printk(KERN_INFO "CPU: L1 I Cache: %dK (%d bytes/line), "
565 "D cache %dK (%d bytes/line)\n",
566 edx>>24, edx&0xFF, ecx>>24, ecx&0xFF);
567 c->x86_cache_size = (ecx>>24) + (edx>>24);
568 /* On K8 L1 TLB is inclusive, so don't count it */
569 c->x86_tlbsize = 0;
570 }
571
572 if (n >= 0x80000006) {
573 cpuid(0x80000006, &dummy, &ebx, &ecx, &edx);
574 ecx = cpuid_ecx(0x80000006);
575 c->x86_cache_size = ecx >> 16;
576 c->x86_tlbsize += ((ebx >> 16) & 0xfff) + (ebx & 0xfff);
577
578 printk(KERN_INFO "CPU: L2 Cache: %dK (%d bytes/line)\n",
579 c->x86_cache_size, ecx & 0xFF);
580 }
581 if (n >= 0x80000008) {
582 cpuid(0x80000008, &eax, &dummy, &dummy, &dummy);
583 c->x86_virt_bits = (eax >> 8) & 0xff;
584 c->x86_phys_bits = eax & 0xff;
585 }
586}
587
588#ifdef CONFIG_NUMA
589static int __cpuinit nearby_node(int apicid)
590{
591 int i, node;
592
593 for (i = apicid - 1; i >= 0; i--) {
594 node = apicid_to_node[i];
595 if (node != NUMA_NO_NODE && node_online(node))
596 return node;
597 }
598 for (i = apicid + 1; i < MAX_LOCAL_APIC; i++) {
599 node = apicid_to_node[i];
600 if (node != NUMA_NO_NODE && node_online(node))
601 return node;
602 }
603 return first_node(node_online_map); /* Shouldn't happen */
604}
605#endif
606
607/*
608 * On a AMD dual core setup the lower bits of the APIC id distingush the cores.
609 * Assumes number of cores is a power of two.
610 */
611static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c)
612{
613#ifdef CONFIG_SMP
614 unsigned bits;
615#ifdef CONFIG_NUMA
616 int cpu = smp_processor_id();
617 int node = 0;
618 unsigned apicid = hard_smp_processor_id();
619#endif
620 bits = c->x86_coreid_bits;
621
622 /* Low order bits define the core id (index of core in socket) */
623 c->cpu_core_id = c->initial_apicid & ((1 << bits)-1);
624 /* Convert the initial APIC ID into the socket ID */
625 c->phys_proc_id = c->initial_apicid >> bits;
626
627#ifdef CONFIG_NUMA
628 node = c->phys_proc_id;
629 if (apicid_to_node[apicid] != NUMA_NO_NODE)
630 node = apicid_to_node[apicid];
631 if (!node_online(node)) {
632 /* Two possibilities here:
633 - The CPU is missing memory and no node was created.
634 In that case try picking one from a nearby CPU
635 - The APIC IDs differ from the HyperTransport node IDs
636 which the K8 northbridge parsing fills in.
637 Assume they are all increased by a constant offset,
638 but in the same order as the HT nodeids.
639 If that doesn't result in a usable node fall back to the
640 path for the previous case. */
641
642 int ht_nodeid = c->initial_apicid;
643
644 if (ht_nodeid >= 0 &&
645 apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
646 node = apicid_to_node[ht_nodeid];
647 /* Pick a nearby node */
648 if (!node_online(node))
649 node = nearby_node(apicid);
650 }
651 numa_set_node(cpu, node);
652
653 printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
654#endif
655#endif
656}
657
658static void __cpuinit early_init_amd_mc(struct cpuinfo_x86 *c)
659{
660#ifdef CONFIG_SMP
661 unsigned bits, ecx;
662
663 /* Multi core CPU? */
664 if (c->extended_cpuid_level < 0x80000008)
665 return;
666
667 ecx = cpuid_ecx(0x80000008);
668
669 c->x86_max_cores = (ecx & 0xff) + 1;
670
671 /* CPU telling us the core id bits shift? */
672 bits = (ecx >> 12) & 0xF;
673
674 /* Otherwise recompute */
675 if (bits == 0) {
676 while ((1 << bits) < c->x86_max_cores)
677 bits++;
678 }
679
680 c->x86_coreid_bits = bits;
681
682#endif
683}
684
685#define ENABLE_C1E_MASK 0x18000000
686#define CPUID_PROCESSOR_SIGNATURE 1
687#define CPUID_XFAM 0x0ff00000
688#define CPUID_XFAM_K8 0x00000000
689#define CPUID_XFAM_10H 0x00100000
690#define CPUID_XFAM_11H 0x00200000
691#define CPUID_XMOD 0x000f0000
692#define CPUID_XMOD_REV_F 0x00040000
693
694/* AMD systems with C1E don't have a working lAPIC timer. Check for that. */
695static __cpuinit int amd_apic_timer_broken(void)
696{
697 u32 lo, hi, eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
698
699 switch (eax & CPUID_XFAM) {
700 case CPUID_XFAM_K8:
701 if ((eax & CPUID_XMOD) < CPUID_XMOD_REV_F)
702 break;
703 case CPUID_XFAM_10H:
704 case CPUID_XFAM_11H:
705 rdmsr(MSR_K8_ENABLE_C1E, lo, hi);
706 if (lo & ENABLE_C1E_MASK)
707 return 1;
708 break;
709 default:
710 /* err on the side of caution */
711 return 1;
712 }
713 return 0;
714}
715
716static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
717{
718 early_init_amd_mc(c);
719
720 /* c->x86_power is 8000_0007 edx. Bit 8 is constant TSC */
721 if (c->x86_power & (1<<8))
722 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
723}
724
725static void __cpuinit init_amd(struct cpuinfo_x86 *c)
726{
727 unsigned level;
728
729#ifdef CONFIG_SMP
730 unsigned long value;
731
732 /*
733 * Disable TLB flush filter by setting HWCR.FFDIS on K8
734 * bit 6 of msr C001_0015
735 *
736 * Errata 63 for SH-B3 steppings
737 * Errata 122 for all steppings (F+ have it disabled by default)
738 */
739 if (c->x86 == 15) {
740 rdmsrl(MSR_K8_HWCR, value);
741 value |= 1 << 6;
742 wrmsrl(MSR_K8_HWCR, value);
743 }
744#endif
745
746 /* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
747 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
748 clear_cpu_cap(c, 0*32+31);
749
750 /* On C+ stepping K8 rep microcode works well for copy/memset */
751 level = cpuid_eax(1);
752 if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) ||
753 level >= 0x0f58))
754 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
755 if (c->x86 == 0x10 || c->x86 == 0x11)
756 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
757
758 /* Enable workaround for FXSAVE leak */
759 if (c->x86 >= 6)
760 set_cpu_cap(c, X86_FEATURE_FXSAVE_LEAK);
761
762 level = get_model_name(c);
763 if (!level) {
764 switch (c->x86) {
765 case 15:
766 /* Should distinguish Models here, but this is only
767 a fallback anyways. */
768 strcpy(c->x86_model_id, "Hammer");
769 break;
770 }
771 }
772 display_cacheinfo(c);
773
774 /* Multi core CPU? */
775 if (c->extended_cpuid_level >= 0x80000008)
776 amd_detect_cmp(c);
777
778 if (c->extended_cpuid_level >= 0x80000006 &&
779 (cpuid_edx(0x80000006) & 0xf000))
780 num_cache_leaves = 4;
781 else
782 num_cache_leaves = 3;
783
784 if (c->x86 == 0xf || c->x86 == 0x10 || c->x86 == 0x11)
785 set_cpu_cap(c, X86_FEATURE_K8);
786
787 /* MFENCE stops RDTSC speculation */
788 set_cpu_cap(c, X86_FEATURE_MFENCE_RDTSC);
789
790 if (c->x86 == 0x10)
791 fam10h_check_enable_mmcfg();
792
793 if (amd_apic_timer_broken())
794 disable_apic_timer = 1;
795
796 if (c == &boot_cpu_data && c->x86 >= 0xf && c->x86 <= 0x11) {
797 unsigned long long tseg;
798
799 /*
800 * Split up direct mapping around the TSEG SMM area.
801 * Don't do it for gbpages because there seems very little
802 * benefit in doing so.
803 */
804 if (!rdmsrl_safe(MSR_K8_TSEG_ADDR, &tseg) &&
805 (tseg >> PMD_SHIFT) < (max_pfn_mapped >> (PMD_SHIFT-PAGE_SHIFT)))
806 set_memory_4k((unsigned long)__va(tseg), 1);
807 }
808}
809
810void __cpuinit detect_ht(struct cpuinfo_x86 *c)
811{
812#ifdef CONFIG_SMP
813 u32 eax, ebx, ecx, edx;
814 int index_msb, core_bits;
815
816 cpuid(1, &eax, &ebx, &ecx, &edx);
817
818
819 if (!cpu_has(c, X86_FEATURE_HT))
820 return;
821 if (cpu_has(c, X86_FEATURE_CMP_LEGACY))
822 goto out;
823
824 smp_num_siblings = (ebx & 0xff0000) >> 16;
825
826 if (smp_num_siblings == 1) {
827 printk(KERN_INFO "CPU: Hyper-Threading is disabled\n");
828 } else if (smp_num_siblings > 1) {
829
830 if (smp_num_siblings > NR_CPUS) {
831 printk(KERN_WARNING "CPU: Unsupported number of "
832 "siblings %d", smp_num_siblings);
833 smp_num_siblings = 1;
834 return;
835 }
836
837 index_msb = get_count_order(smp_num_siblings);
838 c->phys_proc_id = phys_pkg_id(index_msb);
839
840 smp_num_siblings = smp_num_siblings / c->x86_max_cores;
841
842 index_msb = get_count_order(smp_num_siblings);
843
844 core_bits = get_count_order(c->x86_max_cores);
845
846 c->cpu_core_id = phys_pkg_id(index_msb) &
847 ((1 << core_bits) - 1);
848 }
849out:
850 if ((c->x86_max_cores * smp_num_siblings) > 1) {
851 printk(KERN_INFO "CPU: Physical Processor ID: %d\n",
852 c->phys_proc_id);
853 printk(KERN_INFO "CPU: Processor Core ID: %d\n",
854 c->cpu_core_id);
855 }
856
857#endif
858}
859
860/*
861 * find out the number of processor cores on the die
862 */
863static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c)
864{
865 unsigned int eax, t;
866
867 if (c->cpuid_level < 4)
868 return 1;
869
870 cpuid_count(4, 0, &eax, &t, &t, &t);
871
872 if (eax & 0x1f)
873 return ((eax >> 26) + 1);
874 else
875 return 1;
876}
877
878static void __cpuinit srat_detect_node(void)
879{
880#ifdef CONFIG_NUMA
881 unsigned node;
882 int cpu = smp_processor_id();
883 int apicid = hard_smp_processor_id();
884
885 /* Don't do the funky fallback heuristics the AMD version employs
886 for now. */
887 node = apicid_to_node[apicid];
888 if (node == NUMA_NO_NODE || !node_online(node))
889 node = first_node(node_online_map);
890 numa_set_node(cpu, node);
891
892 printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
893#endif
894}
895
896static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
897{
898 if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
899 (c->x86 == 0x6 && c->x86_model >= 0x0e))
900 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
901}
902
903static void __cpuinit init_intel(struct cpuinfo_x86 *c)
904{
905 /* Cache sizes */
906 unsigned n;
907
908 init_intel_cacheinfo(c);
909 if (c->cpuid_level > 9) {
910 unsigned eax = cpuid_eax(10);
911 /* Check for version and the number of counters */
912 if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
913 set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
914 }
915
916 if (cpu_has_ds) {
917 unsigned int l1, l2;
918 rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
919 if (!(l1 & (1<<11)))
920 set_cpu_cap(c, X86_FEATURE_BTS);
921 if (!(l1 & (1<<12)))
922 set_cpu_cap(c, X86_FEATURE_PEBS);
923 }
924
925
926 if (cpu_has_bts)
927 ds_init_intel(c);
928
929 n = c->extended_cpuid_level;
930 if (n >= 0x80000008) {
931 unsigned eax = cpuid_eax(0x80000008);
932 c->x86_virt_bits = (eax >> 8) & 0xff;
933 c->x86_phys_bits = eax & 0xff;
934 /* CPUID workaround for Intel 0F34 CPU */
935 if (c->x86_vendor == X86_VENDOR_INTEL &&
936 c->x86 == 0xF && c->x86_model == 0x3 &&
937 c->x86_mask == 0x4)
938 c->x86_phys_bits = 36;
939 }
940
941 if (c->x86 == 15)
942 c->x86_cache_alignment = c->x86_clflush_size * 2;
943 if (c->x86 == 6)
944 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
945 set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
946 c->x86_max_cores = intel_num_cpu_cores(c);
947
948 srat_detect_node();
949}
950
951static void __cpuinit early_init_centaur(struct cpuinfo_x86 *c)
952{
953 if (c->x86 == 0x6 && c->x86_model >= 0xf)
954 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
955}
956
957static void __cpuinit init_centaur(struct cpuinfo_x86 *c)
958{
959 /* Cache sizes */
960 unsigned n;
961
962 n = c->extended_cpuid_level;
963 if (n >= 0x80000008) {
964 unsigned eax = cpuid_eax(0x80000008);
965 c->x86_virt_bits = (eax >> 8) & 0xff;
966 c->x86_phys_bits = eax & 0xff;
967 }
968
969 if (c->x86 == 0x6 && c->x86_model >= 0xf) {
970 c->x86_cache_alignment = c->x86_clflush_size * 2;
971 set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
972 set_cpu_cap(c, X86_FEATURE_REP_GOOD);
973 }
974 set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
975}
976
977static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
978{
979 char *v = c->x86_vendor_id;
980
981 if (!strcmp(v, "AuthenticAMD"))
982 c->x86_vendor = X86_VENDOR_AMD;
983 else if (!strcmp(v, "GenuineIntel"))
984 c->x86_vendor = X86_VENDOR_INTEL;
985 else if (!strcmp(v, "CentaurHauls"))
986 c->x86_vendor = X86_VENDOR_CENTAUR;
987 else
988 c->x86_vendor = X86_VENDOR_UNKNOWN;
989}
990
991/* Do some early cpuid on the boot CPU to get some parameter that are
992 needed before check_bugs. Everything advanced is in identify_cpu
993 below. */
994static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
995{
996 u32 tfms, xlvl;
997
998 c->loops_per_jiffy = loops_per_jiffy;
999 c->x86_cache_size = -1;
1000 c->x86_vendor = X86_VENDOR_UNKNOWN;
1001 c->x86_model = c->x86_mask = 0; /* So far unknown... */
1002 c->x86_vendor_id[0] = '\0'; /* Unset */
1003 c->x86_model_id[0] = '\0'; /* Unset */
1004 c->x86_clflush_size = 64;
1005 c->x86_cache_alignment = c->x86_clflush_size;
1006 c->x86_max_cores = 1;
1007 c->x86_coreid_bits = 0;
1008 c->extended_cpuid_level = 0;
1009 memset(&c->x86_capability, 0, sizeof c->x86_capability);
1010
1011 /* Get vendor name */
1012 cpuid(0x00000000, (unsigned int *)&c->cpuid_level,
1013 (unsigned int *)&c->x86_vendor_id[0],
1014 (unsigned int *)&c->x86_vendor_id[8],
1015 (unsigned int *)&c->x86_vendor_id[4]);
1016
1017 get_cpu_vendor(c);
1018
1019 /* Initialize the standard set of capabilities */
1020 /* Note that the vendor-specific code below might override */
1021
1022 /* Intel-defined flags: level 0x00000001 */
1023 if (c->cpuid_level >= 0x00000001) {
1024 __u32 misc;
1025 cpuid(0x00000001, &tfms, &misc, &c->x86_capability[4],
1026 &c->x86_capability[0]);
1027 c->x86 = (tfms >> 8) & 0xf;
1028 c->x86_model = (tfms >> 4) & 0xf;
1029 c->x86_mask = tfms & 0xf;
1030 if (c->x86 == 0xf)
1031 c->x86 += (tfms >> 20) & 0xff;
1032 if (c->x86 >= 0x6)
1033 c->x86_model += ((tfms >> 16) & 0xF) << 4;
1034 if (test_cpu_cap(c, X86_FEATURE_CLFLSH))
1035 c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
1036 } else {
1037 /* Have CPUID level 0 only - unheard of */
1038 c->x86 = 4;
1039 }
1040
1041 c->initial_apicid = (cpuid_ebx(1) >> 24) & 0xff;
1042#ifdef CONFIG_SMP
1043 c->phys_proc_id = c->initial_apicid;
1044#endif
1045 /* AMD-defined flags: level 0x80000001 */
1046 xlvl = cpuid_eax(0x80000000);
1047 c->extended_cpuid_level = xlvl;
1048 if ((xlvl & 0xffff0000) == 0x80000000) {
1049 if (xlvl >= 0x80000001) {
1050 c->x86_capability[1] = cpuid_edx(0x80000001);
1051 c->x86_capability[6] = cpuid_ecx(0x80000001);
1052 }
1053 if (xlvl >= 0x80000004)
1054 get_model_name(c); /* Default name */
1055 }
1056
1057 /* Transmeta-defined flags: level 0x80860001 */
1058 xlvl = cpuid_eax(0x80860000);
1059 if ((xlvl & 0xffff0000) == 0x80860000) {
1060 /* Don't set x86_cpuid_level here for now to not confuse. */
1061 if (xlvl >= 0x80860001)
1062 c->x86_capability[2] = cpuid_edx(0x80860001);
1063 }
1064
1065 c->extended_cpuid_level = cpuid_eax(0x80000000);
1066 if (c->extended_cpuid_level >= 0x80000007)
1067 c->x86_power = cpuid_edx(0x80000007);
1068
1069 switch (c->x86_vendor) {
1070 case X86_VENDOR_AMD:
1071 early_init_amd(c);
1072 break;
1073 case X86_VENDOR_INTEL:
1074 early_init_intel(c);
1075 break;
1076 case X86_VENDOR_CENTAUR:
1077 early_init_centaur(c);
1078 break;
1079 }
1080
1081 validate_pat_support(c);
1082}
1083
1084/*
1085 * This does the hard work of actually picking apart the CPU stuff...
1086 */
1087void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
1088{
1089 int i;
1090
1091 early_identify_cpu(c);
1092
1093 init_scattered_cpuid_features(c);
1094
1095 c->apicid = phys_pkg_id(0);
1096
1097 /*
1098 * Vendor-specific initialization. In this section we
1099 * canonicalize the feature flags, meaning if there are
1100 * features a certain CPU supports which CPUID doesn't
1101 * tell us, CPUID claiming incorrect flags, or other bugs,
1102 * we handle them here.
1103 *
1104 * At the end of this section, c->x86_capability better
1105 * indicate the features this CPU genuinely supports!
1106 */
1107 switch (c->x86_vendor) {
1108 case X86_VENDOR_AMD:
1109 init_amd(c);
1110 break;
1111
1112 case X86_VENDOR_INTEL:
1113 init_intel(c);
1114 break;
1115
1116 case X86_VENDOR_CENTAUR:
1117 init_centaur(c);
1118 break;
1119
1120 case X86_VENDOR_UNKNOWN:
1121 default:
1122 display_cacheinfo(c);
1123 break;
1124 }
1125
1126 detect_ht(c);
1127
1128 /*
1129 * On SMP, boot_cpu_data holds the common feature set between
1130 * all CPUs; so make sure that we indicate which features are
1131 * common between the CPUs. The first time this routine gets
1132 * executed, c == &boot_cpu_data.
1133 */
1134 if (c != &boot_cpu_data) {
1135 /* AND the already accumulated flags with these */
1136 for (i = 0; i < NCAPINTS; i++)
1137 boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
1138 }
1139
1140 /* Clear all flags overriden by options */
1141 for (i = 0; i < NCAPINTS; i++)
1142 c->x86_capability[i] &= ~cleared_cpu_caps[i];
1143
1144#ifdef CONFIG_X86_MCE
1145 mcheck_init(c);
1146#endif
1147 select_idle_routine(c);
1148
1149#ifdef CONFIG_NUMA
1150 numa_add_cpu(smp_processor_id());
1151#endif
1152
1153}
1154
1155void __cpuinit identify_boot_cpu(void)
1156{
1157 identify_cpu(&boot_cpu_data);
1158}
1159
1160void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
1161{
1162 BUG_ON(c == &boot_cpu_data);
1163 identify_cpu(c);
1164 mtrr_ap_init();
1165}
1166
1167static __init int setup_noclflush(char *arg)
1168{
1169 setup_clear_cpu_cap(X86_FEATURE_CLFLSH);
1170 return 1;
1171}
1172__setup("noclflush", setup_noclflush);
1173
1174void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
1175{
1176 if (c->x86_model_id[0])
1177 printk(KERN_CONT "%s", c->x86_model_id);
1178
1179 if (c->x86_mask || c->cpuid_level >= 0)
1180 printk(KERN_CONT " stepping %02x\n", c->x86_mask);
1181 else
1182 printk(KERN_CONT "\n");
1183}
1184
1185static __init int setup_disablecpuid(char *arg)
1186{
1187 int bit;
1188 if (get_option(&arg, &bit) && bit < NCAPINTS*32)
1189 setup_clear_cpu_cap(bit);
1190 else
1191 return 0;
1192 return 1;
1193}
1194__setup("clearcpuid=", setup_disablecpuid);
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
new file mode 100644
index 000000000000..cac68430d31f
--- /dev/null
+++ b/arch/x86/kernel/setup_percpu.c
@@ -0,0 +1,399 @@
1#include <linux/kernel.h>
2#include <linux/module.h>
3#include <linux/init.h>
4#include <linux/bootmem.h>
5#include <linux/percpu.h>
6#include <linux/kexec.h>
7#include <linux/crash_dump.h>
8#include <asm/smp.h>
9#include <asm/percpu.h>
10#include <asm/sections.h>
11#include <asm/processor.h>
12#include <asm/setup.h>
13#include <asm/topology.h>
14#include <asm/mpspec.h>
15#include <asm/apicdef.h>
16#include <asm/highmem.h>
17
18#ifdef CONFIG_X86_LOCAL_APIC
19unsigned int num_processors;
20unsigned disabled_cpus __cpuinitdata;
21/* Processor that is doing the boot up */
22unsigned int boot_cpu_physical_apicid = -1U;
23unsigned int max_physical_apicid;
24EXPORT_SYMBOL(boot_cpu_physical_apicid);
25
26/* Bitmask of physically existing CPUs */
27physid_mask_t phys_cpu_present_map;
28#endif
29
30/* map cpu index to physical APIC ID */
31DEFINE_EARLY_PER_CPU(u16, x86_cpu_to_apicid, BAD_APICID);
32DEFINE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid, BAD_APICID);
33EXPORT_EARLY_PER_CPU_SYMBOL(x86_cpu_to_apicid);
34EXPORT_EARLY_PER_CPU_SYMBOL(x86_bios_cpu_apicid);
35
36#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
37#define X86_64_NUMA 1
38
39/* map cpu index to node index */
40DEFINE_EARLY_PER_CPU(int, x86_cpu_to_node_map, NUMA_NO_NODE);
41EXPORT_EARLY_PER_CPU_SYMBOL(x86_cpu_to_node_map);
42
43/* which logical CPUs are on which nodes */
44cpumask_t *node_to_cpumask_map;
45EXPORT_SYMBOL(node_to_cpumask_map);
46
47/* setup node_to_cpumask_map */
48static void __init setup_node_to_cpumask_map(void);
49
50#else
51static inline void setup_node_to_cpumask_map(void) { }
52#endif
53
54#if defined(CONFIG_HAVE_SETUP_PER_CPU_AREA) && defined(CONFIG_X86_SMP)
55/*
56 * Copy data used in early init routines from the initial arrays to the
57 * per cpu data areas. These arrays then become expendable and the
58 * *_early_ptr's are zeroed indicating that the static arrays are gone.
59 */
60static void __init setup_per_cpu_maps(void)
61{
62 int cpu;
63
64 for_each_possible_cpu(cpu) {
65 per_cpu(x86_cpu_to_apicid, cpu) =
66 early_per_cpu_map(x86_cpu_to_apicid, cpu);
67 per_cpu(x86_bios_cpu_apicid, cpu) =
68 early_per_cpu_map(x86_bios_cpu_apicid, cpu);
69#ifdef X86_64_NUMA
70 per_cpu(x86_cpu_to_node_map, cpu) =
71 early_per_cpu_map(x86_cpu_to_node_map, cpu);
72#endif
73 }
74
75 /* indicate the early static arrays will soon be gone */
76 early_per_cpu_ptr(x86_cpu_to_apicid) = NULL;
77 early_per_cpu_ptr(x86_bios_cpu_apicid) = NULL;
78#ifdef X86_64_NUMA
79 early_per_cpu_ptr(x86_cpu_to_node_map) = NULL;
80#endif
81}
82
83#ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP
84cpumask_t *cpumask_of_cpu_map __read_mostly;
85EXPORT_SYMBOL(cpumask_of_cpu_map);
86
87/* requires nr_cpu_ids to be initialized */
88static void __init setup_cpumask_of_cpu(void)
89{
90 int i;
91
92 /* alloc_bootmem zeroes memory */
93 cpumask_of_cpu_map = alloc_bootmem_low(sizeof(cpumask_t) * nr_cpu_ids);
94 for (i = 0; i < nr_cpu_ids; i++)
95 cpu_set(i, cpumask_of_cpu_map[i]);
96}
97#else
98static inline void setup_cpumask_of_cpu(void) { }
99#endif
100
101#ifdef CONFIG_X86_32
102/*
103 * Great future not-so-futuristic plan: make i386 and x86_64 do it
104 * the same way
105 */
106unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
107EXPORT_SYMBOL(__per_cpu_offset);
108static inline void setup_cpu_pda_map(void) { }
109
110#elif !defined(CONFIG_SMP)
111static inline void setup_cpu_pda_map(void) { }
112
113#else /* CONFIG_SMP && CONFIG_X86_64 */
114
115/*
116 * Allocate cpu_pda pointer table and array via alloc_bootmem.
117 */
118static void __init setup_cpu_pda_map(void)
119{
120 char *pda;
121 struct x8664_pda **new_cpu_pda;
122 unsigned long size;
123 int cpu;
124
125 size = roundup(sizeof(struct x8664_pda), cache_line_size());
126
127 /* allocate cpu_pda array and pointer table */
128 {
129 unsigned long tsize = nr_cpu_ids * sizeof(void *);
130 unsigned long asize = size * (nr_cpu_ids - 1);
131
132 tsize = roundup(tsize, cache_line_size());
133 new_cpu_pda = alloc_bootmem(tsize + asize);
134 pda = (char *)new_cpu_pda + tsize;
135 }
136
137 /* initialize pointer table to static pda's */
138 for_each_possible_cpu(cpu) {
139 if (cpu == 0) {
140 /* leave boot cpu pda in place */
141 new_cpu_pda[0] = cpu_pda(0);
142 continue;
143 }
144 new_cpu_pda[cpu] = (struct x8664_pda *)pda;
145 new_cpu_pda[cpu]->in_bootmem = 1;
146 pda += size;
147 }
148
149 /* point to new pointer table */
150 _cpu_pda = new_cpu_pda;
151}
152#endif
153
154/*
155 * Great future plan:
156 * Declare PDA itself and support (irqstack,tss,pgd) as per cpu data.
157 * Always point %gs to its beginning
158 */
159void __init setup_per_cpu_areas(void)
160{
161 ssize_t size = PERCPU_ENOUGH_ROOM;
162 char *ptr;
163 int cpu;
164
165 /* Setup cpu_pda map */
166 setup_cpu_pda_map();
167
168 /* Copy section for each CPU (we discard the original) */
169 size = PERCPU_ENOUGH_ROOM;
170 printk(KERN_INFO "PERCPU: Allocating %zd bytes of per cpu data\n",
171 size);
172
173 for_each_possible_cpu(cpu) {
174#ifndef CONFIG_NEED_MULTIPLE_NODES
175 ptr = alloc_bootmem_pages(size);
176#else
177 int node = early_cpu_to_node(cpu);
178 if (!node_online(node) || !NODE_DATA(node)) {
179 ptr = alloc_bootmem_pages(size);
180 printk(KERN_INFO
181 "cpu %d has no node %d or node-local memory\n",
182 cpu, node);
183 }
184 else
185 ptr = alloc_bootmem_pages_node(NODE_DATA(node), size);
186#endif
187 per_cpu_offset(cpu) = ptr - __per_cpu_start;
188 memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
189
190 }
191
192 printk(KERN_DEBUG "NR_CPUS: %d, nr_cpu_ids: %d, nr_node_ids %d\n",
193 NR_CPUS, nr_cpu_ids, nr_node_ids);
194
195 /* Setup percpu data maps */
196 setup_per_cpu_maps();
197
198 /* Setup node to cpumask map */
199 setup_node_to_cpumask_map();
200
201 /* Setup cpumask_of_cpu map */
202 setup_cpumask_of_cpu();
203}
204
205#endif
206
207#ifdef X86_64_NUMA
208
209/*
210 * Allocate node_to_cpumask_map based on number of available nodes
211 * Requires node_possible_map to be valid.
212 *
213 * Note: node_to_cpumask() is not valid until after this is done.
214 */
215static void __init setup_node_to_cpumask_map(void)
216{
217 unsigned int node, num = 0;
218 cpumask_t *map;
219
220 /* setup nr_node_ids if not done yet */
221 if (nr_node_ids == MAX_NUMNODES) {
222 for_each_node_mask(node, node_possible_map)
223 num = node;
224 nr_node_ids = num + 1;
225 }
226
227 /* allocate the map */
228 map = alloc_bootmem_low(nr_node_ids * sizeof(cpumask_t));
229
230 Dprintk(KERN_DEBUG "Node to cpumask map at %p for %d nodes\n",
231 map, nr_node_ids);
232
233 /* node_to_cpumask() will now work */
234 node_to_cpumask_map = map;
235}
236
237void __cpuinit numa_set_node(int cpu, int node)
238{
239 int *cpu_to_node_map = early_per_cpu_ptr(x86_cpu_to_node_map);
240
241 if (cpu_pda(cpu) && node != NUMA_NO_NODE)
242 cpu_pda(cpu)->nodenumber = node;
243
244 if (cpu_to_node_map)
245 cpu_to_node_map[cpu] = node;
246
247 else if (per_cpu_offset(cpu))
248 per_cpu(x86_cpu_to_node_map, cpu) = node;
249
250 else
251 Dprintk(KERN_INFO "Setting node for non-present cpu %d\n", cpu);
252}
253
254void __cpuinit numa_clear_node(int cpu)
255{
256 numa_set_node(cpu, NUMA_NO_NODE);
257}
258
259#ifndef CONFIG_DEBUG_PER_CPU_MAPS
260
261void __cpuinit numa_add_cpu(int cpu)
262{
263 cpu_set(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
264}
265
266void __cpuinit numa_remove_cpu(int cpu)
267{
268 cpu_clear(cpu, node_to_cpumask_map[cpu_to_node(cpu)]);
269}
270
271#else /* CONFIG_DEBUG_PER_CPU_MAPS */
272
273/*
274 * --------- debug versions of the numa functions ---------
275 */
276static void __cpuinit numa_set_cpumask(int cpu, int enable)
277{
278 int node = cpu_to_node(cpu);
279 cpumask_t *mask;
280 char buf[64];
281
282 if (node_to_cpumask_map == NULL) {
283 printk(KERN_ERR "node_to_cpumask_map NULL\n");
284 dump_stack();
285 return;
286 }
287
288 mask = &node_to_cpumask_map[node];
289 if (enable)
290 cpu_set(cpu, *mask);
291 else
292 cpu_clear(cpu, *mask);
293
294 cpulist_scnprintf(buf, sizeof(buf), *mask);
295 printk(KERN_DEBUG "%s cpu %d node %d: mask now %s\n",
296 enable? "numa_add_cpu":"numa_remove_cpu", cpu, node, buf);
297 }
298
299void __cpuinit numa_add_cpu(int cpu)
300{
301 numa_set_cpumask(cpu, 1);
302}
303
304void __cpuinit numa_remove_cpu(int cpu)
305{
306 numa_set_cpumask(cpu, 0);
307}
308
309int cpu_to_node(int cpu)
310{
311 if (early_per_cpu_ptr(x86_cpu_to_node_map)) {
312 printk(KERN_WARNING
313 "cpu_to_node(%d): usage too early!\n", cpu);
314 dump_stack();
315 return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu];
316 }
317 return per_cpu(x86_cpu_to_node_map, cpu);
318}
319EXPORT_SYMBOL(cpu_to_node);
320
321/*
322 * Same function as cpu_to_node() but used if called before the
323 * per_cpu areas are setup.
324 */
325int early_cpu_to_node(int cpu)
326{
327 if (early_per_cpu_ptr(x86_cpu_to_node_map))
328 return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu];
329
330 if (!per_cpu_offset(cpu)) {
331 printk(KERN_WARNING
332 "early_cpu_to_node(%d): no per_cpu area!\n", cpu);
333 dump_stack();
334 return NUMA_NO_NODE;
335 }
336 return per_cpu(x86_cpu_to_node_map, cpu);
337}
338
339
340/* empty cpumask */
341static const cpumask_t cpu_mask_none;
342
343/*
344 * Returns a pointer to the bitmask of CPUs on Node 'node'.
345 */
346const cpumask_t *_node_to_cpumask_ptr(int node)
347{
348 if (node_to_cpumask_map == NULL) {
349 printk(KERN_WARNING
350 "_node_to_cpumask_ptr(%d): no node_to_cpumask_map!\n",
351 node);
352 dump_stack();
353 return (const cpumask_t *)&cpu_online_map;
354 }
355 if (node >= nr_node_ids) {
356 printk(KERN_WARNING
357 "_node_to_cpumask_ptr(%d): node > nr_node_ids(%d)\n",
358 node, nr_node_ids);
359 dump_stack();
360 return &cpu_mask_none;
361 }
362 return &node_to_cpumask_map[node];
363}
364EXPORT_SYMBOL(_node_to_cpumask_ptr);
365
366/*
367 * Returns a bitmask of CPUs on Node 'node'.
368 *
369 * Side note: this function creates the returned cpumask on the stack
370 * so with a high NR_CPUS count, excessive stack space is used. The
371 * node_to_cpumask_ptr function should be used whenever possible.
372 */
373cpumask_t node_to_cpumask(int node)
374{
375 if (node_to_cpumask_map == NULL) {
376 printk(KERN_WARNING
377 "node_to_cpumask(%d): no node_to_cpumask_map!\n", node);
378 dump_stack();
379 return cpu_online_map;
380 }
381 if (node >= nr_node_ids) {
382 printk(KERN_WARNING
383 "node_to_cpumask(%d): node > nr_node_ids(%d)\n",
384 node, nr_node_ids);
385 dump_stack();
386 return cpu_mask_none;
387 }
388 return node_to_cpumask_map[node];
389}
390EXPORT_SYMBOL(node_to_cpumask);
391
392/*
393 * --------- end of debug versions of the numa functions ---------
394 */
395
396#endif /* CONFIG_DEBUG_PER_CPU_MAPS */
397
398#endif /* X86_64_NUMA */
399
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 0cb7aadc87cd..361b7a4c640c 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -121,132 +121,23 @@ static void native_smp_send_reschedule(int cpu)
121 send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR); 121 send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR);
122} 122}
123 123
124/* 124void native_send_call_func_single_ipi(int cpu)
125 * Structure and data for smp_call_function(). This is designed to minimise
126 * static memory requirements. It also looks cleaner.
127 */
128static DEFINE_SPINLOCK(call_lock);
129
130struct call_data_struct {
131 void (*func) (void *info);
132 void *info;
133 atomic_t started;
134 atomic_t finished;
135 int wait;
136};
137
138void lock_ipi_call_lock(void)
139{ 125{
140 spin_lock_irq(&call_lock); 126 send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_SINGLE_VECTOR);
141}
142
143void unlock_ipi_call_lock(void)
144{
145 spin_unlock_irq(&call_lock);
146}
147
148static struct call_data_struct *call_data;
149
150static void __smp_call_function(void (*func) (void *info), void *info,
151 int nonatomic, int wait)
152{
153 struct call_data_struct data;
154 int cpus = num_online_cpus() - 1;
155
156 if (!cpus)
157 return;
158
159 data.func = func;
160 data.info = info;
161 atomic_set(&data.started, 0);
162 data.wait = wait;
163 if (wait)
164 atomic_set(&data.finished, 0);
165
166 call_data = &data;
167 mb();
168
169 /* Send a message to all other CPUs and wait for them to respond */
170 send_IPI_allbutself(CALL_FUNCTION_VECTOR);
171
172 /* Wait for response */
173 while (atomic_read(&data.started) != cpus)
174 cpu_relax();
175
176 if (wait)
177 while (atomic_read(&data.finished) != cpus)
178 cpu_relax();
179} 127}
180 128
181 129void native_send_call_func_ipi(cpumask_t mask)
182/**
183 * smp_call_function_mask(): Run a function on a set of other CPUs.
184 * @mask: The set of cpus to run on. Must not include the current cpu.
185 * @func: The function to run. This must be fast and non-blocking.
186 * @info: An arbitrary pointer to pass to the function.
187 * @wait: If true, wait (atomically) until function has completed on other CPUs.
188 *
189 * Returns 0 on success, else a negative status code.
190 *
191 * If @wait is true, then returns once @func has returned; otherwise
192 * it returns just before the target cpu calls @func.
193 *
194 * You must not call this function with disabled interrupts or from a
195 * hardware interrupt handler or from a bottom half handler.
196 */
197static int
198native_smp_call_function_mask(cpumask_t mask,
199 void (*func)(void *), void *info,
200 int wait)
201{ 130{
202 struct call_data_struct data;
203 cpumask_t allbutself; 131 cpumask_t allbutself;
204 int cpus;
205
206 /* Can deadlock when called with interrupts disabled */
207 WARN_ON(irqs_disabled());
208
209 /* Holding any lock stops cpus from going down. */
210 spin_lock(&call_lock);
211 132
212 allbutself = cpu_online_map; 133 allbutself = cpu_online_map;
213 cpu_clear(smp_processor_id(), allbutself); 134 cpu_clear(smp_processor_id(), allbutself);
214 135
215 cpus_and(mask, mask, allbutself);
216 cpus = cpus_weight(mask);
217
218 if (!cpus) {
219 spin_unlock(&call_lock);
220 return 0;
221 }
222
223 data.func = func;
224 data.info = info;
225 atomic_set(&data.started, 0);
226 data.wait = wait;
227 if (wait)
228 atomic_set(&data.finished, 0);
229
230 call_data = &data;
231 wmb();
232
233 /* Send a message to other CPUs */
234 if (cpus_equal(mask, allbutself) && 136 if (cpus_equal(mask, allbutself) &&
235 cpus_equal(cpu_online_map, cpu_callout_map)) 137 cpus_equal(cpu_online_map, cpu_callout_map))
236 send_IPI_allbutself(CALL_FUNCTION_VECTOR); 138 send_IPI_allbutself(CALL_FUNCTION_VECTOR);
237 else 139 else
238 send_IPI_mask(mask, CALL_FUNCTION_VECTOR); 140 send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
239
240 /* Wait for response */
241 while (atomic_read(&data.started) != cpus)
242 cpu_relax();
243
244 if (wait)
245 while (atomic_read(&data.finished) != cpus)
246 cpu_relax();
247 spin_unlock(&call_lock);
248
249 return 0;
250} 141}
251 142
252static void stop_this_cpu(void *dummy) 143static void stop_this_cpu(void *dummy)
@@ -268,18 +159,13 @@ static void stop_this_cpu(void *dummy)
268 159
269static void native_smp_send_stop(void) 160static void native_smp_send_stop(void)
270{ 161{
271 int nolock;
272 unsigned long flags; 162 unsigned long flags;
273 163
274 if (reboot_force) 164 if (reboot_force)
275 return; 165 return;
276 166
277 /* Don't deadlock on the call lock in panic */ 167 smp_call_function(stop_this_cpu, NULL, 0);
278 nolock = !spin_trylock(&call_lock);
279 local_irq_save(flags); 168 local_irq_save(flags);
280 __smp_call_function(stop_this_cpu, NULL, 0, 0);
281 if (!nolock)
282 spin_unlock(&call_lock);
283 disable_local_APIC(); 169 disable_local_APIC();
284 local_irq_restore(flags); 170 local_irq_restore(flags);
285} 171}
@@ -301,33 +187,28 @@ void smp_reschedule_interrupt(struct pt_regs *regs)
301 187
302void smp_call_function_interrupt(struct pt_regs *regs) 188void smp_call_function_interrupt(struct pt_regs *regs)
303{ 189{
304 void (*func) (void *info) = call_data->func;
305 void *info = call_data->info;
306 int wait = call_data->wait;
307
308 ack_APIC_irq(); 190 ack_APIC_irq();
309 /*
310 * Notify initiating CPU that I've grabbed the data and am
311 * about to execute the function
312 */
313 mb();
314 atomic_inc(&call_data->started);
315 /*
316 * At this point the info structure may be out of scope unless wait==1
317 */
318 irq_enter(); 191 irq_enter();
319 (*func)(info); 192 generic_smp_call_function_interrupt();
320#ifdef CONFIG_X86_32 193#ifdef CONFIG_X86_32
321 __get_cpu_var(irq_stat).irq_call_count++; 194 __get_cpu_var(irq_stat).irq_call_count++;
322#else 195#else
323 add_pda(irq_call_count, 1); 196 add_pda(irq_call_count, 1);
324#endif 197#endif
325 irq_exit(); 198 irq_exit();
199}
326 200
327 if (wait) { 201void smp_call_function_single_interrupt(struct pt_regs *regs)
328 mb(); 202{
329 atomic_inc(&call_data->finished); 203 ack_APIC_irq();
330 } 204 irq_enter();
205 generic_smp_call_function_single_interrupt();
206#ifdef CONFIG_X86_32
207 __get_cpu_var(irq_stat).irq_call_count++;
208#else
209 add_pda(irq_call_count, 1);
210#endif
211 irq_exit();
331} 212}
332 213
333struct smp_ops smp_ops = { 214struct smp_ops smp_ops = {
@@ -338,7 +219,8 @@ struct smp_ops smp_ops = {
338 219
339 .smp_send_stop = native_smp_send_stop, 220 .smp_send_stop = native_smp_send_stop,
340 .smp_send_reschedule = native_smp_send_reschedule, 221 .smp_send_reschedule = native_smp_send_reschedule,
341 .smp_call_function_mask = native_smp_call_function_mask, 222
223 .send_call_func_ipi = native_send_call_func_ipi,
224 .send_call_func_single_ipi = native_send_call_func_single_ipi,
342}; 225};
343EXPORT_SYMBOL_GPL(smp_ops); 226EXPORT_SYMBOL_GPL(smp_ops);
344
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 38988491c622..687376ab07e8 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -59,7 +59,6 @@
59#include <asm/pgtable.h> 59#include <asm/pgtable.h>
60#include <asm/tlbflush.h> 60#include <asm/tlbflush.h>
61#include <asm/mtrr.h> 61#include <asm/mtrr.h>
62#include <asm/nmi.h>
63#include <asm/vmi.h> 62#include <asm/vmi.h>
64#include <asm/genapic.h> 63#include <asm/genapic.h>
65#include <linux/mc146818rtc.h> 64#include <linux/mc146818rtc.h>
@@ -68,22 +67,6 @@
68#include <mach_wakecpu.h> 67#include <mach_wakecpu.h>
69#include <smpboot_hooks.h> 68#include <smpboot_hooks.h>
70 69
71/*
72 * FIXME: For x86_64, those are defined in other files. But moving them here,
73 * would make the setup areas dependent on smp, which is a loss. When we
74 * integrate apic between arches, we can probably do a better job, but
75 * right now, they'll stay here -- glommer
76 */
77
78/* which logical CPU number maps to which CPU (physical APIC ID) */
79u16 x86_cpu_to_apicid_init[NR_CPUS] __initdata =
80 { [0 ... NR_CPUS-1] = BAD_APICID };
81void *x86_cpu_to_apicid_early_ptr;
82
83u16 x86_bios_cpu_apicid_init[NR_CPUS] __initdata
84 = { [0 ... NR_CPUS-1] = BAD_APICID };
85void *x86_bios_cpu_apicid_early_ptr;
86
87#ifdef CONFIG_X86_32 70#ifdef CONFIG_X86_32
88u8 apicid_2_node[MAX_APICID]; 71u8 apicid_2_node[MAX_APICID];
89static int low_mappings; 72static int low_mappings;
@@ -198,13 +181,12 @@ static void map_cpu_to_logical_apicid(void)
198 map_cpu_to_node(cpu, node); 181 map_cpu_to_node(cpu, node);
199} 182}
200 183
201static void unmap_cpu_to_logical_apicid(int cpu) 184void numa_remove_cpu(int cpu)
202{ 185{
203 cpu_2_logical_apicid[cpu] = BAD_APICID; 186 cpu_2_logical_apicid[cpu] = BAD_APICID;
204 unmap_cpu_to_node(cpu); 187 unmap_cpu_to_node(cpu);
205} 188}
206#else 189#else
207#define unmap_cpu_to_logical_apicid(cpu) do {} while (0)
208#define map_cpu_to_logical_apicid() do {} while (0) 190#define map_cpu_to_logical_apicid() do {} while (0)
209#endif 191#endif
210 192
@@ -345,19 +327,12 @@ static void __cpuinit start_secondary(void *unused)
345 * lock helps us to not include this cpu in a currently in progress 327 * lock helps us to not include this cpu in a currently in progress
346 * smp_call_function(). 328 * smp_call_function().
347 */ 329 */
348 lock_ipi_call_lock(); 330 ipi_call_lock_irq();
349#ifdef CONFIG_X86_64 331#ifdef CONFIG_X86_IO_APIC
350 spin_lock(&vector_lock); 332 setup_vector_irq(smp_processor_id());
351
352 /* Setup the per cpu irq handling data structures */
353 __setup_vector_irq(smp_processor_id());
354 /*
355 * Allow the master to continue.
356 */
357 spin_unlock(&vector_lock);
358#endif 333#endif
359 cpu_set(smp_processor_id(), cpu_online_map); 334 cpu_set(smp_processor_id(), cpu_online_map);
360 unlock_ipi_call_lock(); 335 ipi_call_unlock_irq();
361 per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; 336 per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
362 337
363 setup_secondary_clock(); 338 setup_secondary_clock();
@@ -366,31 +341,8 @@ static void __cpuinit start_secondary(void *unused)
366 cpu_idle(); 341 cpu_idle();
367} 342}
368 343
369#ifdef CONFIG_X86_32
370/*
371 * Everything has been set up for the secondary
372 * CPUs - they just need to reload everything
373 * from the task structure
374 * This function must not return.
375 */
376void __devinit initialize_secondary(void)
377{
378 /*
379 * We don't actually need to load the full TSS,
380 * basically just the stack pointer and the ip.
381 */
382
383 asm volatile(
384 "movl %0,%%esp\n\t"
385 "jmp *%1"
386 :
387 :"m" (current->thread.sp), "m" (current->thread.ip));
388}
389#endif
390
391static void __cpuinit smp_apply_quirks(struct cpuinfo_x86 *c) 344static void __cpuinit smp_apply_quirks(struct cpuinfo_x86 *c)
392{ 345{
393#ifdef CONFIG_X86_32
394 /* 346 /*
395 * Mask B, Pentium, but not Pentium MMX 347 * Mask B, Pentium, but not Pentium MMX
396 */ 348 */
@@ -440,7 +392,6 @@ static void __cpuinit smp_apply_quirks(struct cpuinfo_x86 *c)
440 392
441valid_k7: 393valid_k7:
442 ; 394 ;
443#endif
444} 395}
445 396
446static void __cpuinit smp_checks(void) 397static void __cpuinit smp_checks(void)
@@ -555,23 +506,6 @@ cpumask_t cpu_coregroup_map(int cpu)
555 return c->llc_shared_map; 506 return c->llc_shared_map;
556} 507}
557 508
558#ifdef CONFIG_X86_32
559/*
560 * We are called very early to get the low memory for the
561 * SMP bootup trampoline page.
562 */
563void __init smp_alloc_memory(void)
564{
565 trampoline_base = alloc_bootmem_low_pages(PAGE_SIZE);
566 /*
567 * Has to be in very low memory so we can execute
568 * real-mode AP code.
569 */
570 if (__pa(trampoline_base) >= 0x9F000)
571 BUG();
572}
573#endif
574
575static void impress_friends(void) 509static void impress_friends(void)
576{ 510{
577 int cpu; 511 int cpu;
@@ -748,11 +682,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip)
748 * target processor state. 682 * target processor state.
749 */ 683 */
750 startup_ipi_hook(phys_apicid, (unsigned long) start_secondary, 684 startup_ipi_hook(phys_apicid, (unsigned long) start_secondary,
751#ifdef CONFIG_X86_64
752 (unsigned long)init_rsp);
753#else
754 (unsigned long)stack_start.sp); 685 (unsigned long)stack_start.sp);
755#endif
756 686
757 /* 687 /*
758 * Run STARTUP IPI loop. 688 * Run STARTUP IPI loop.
@@ -832,6 +762,45 @@ static void __cpuinit do_fork_idle(struct work_struct *work)
832 complete(&c_idle->done); 762 complete(&c_idle->done);
833} 763}
834 764
765#ifdef CONFIG_X86_64
766/*
767 * Allocate node local memory for the AP pda.
768 *
769 * Must be called after the _cpu_pda pointer table is initialized.
770 */
771static int __cpuinit get_local_pda(int cpu)
772{
773 struct x8664_pda *oldpda, *newpda;
774 unsigned long size = sizeof(struct x8664_pda);
775 int node = cpu_to_node(cpu);
776
777 if (cpu_pda(cpu) && !cpu_pda(cpu)->in_bootmem)
778 return 0;
779
780 oldpda = cpu_pda(cpu);
781 newpda = kmalloc_node(size, GFP_ATOMIC, node);
782 if (!newpda) {
783 printk(KERN_ERR "Could not allocate node local PDA "
784 "for CPU %d on node %d\n", cpu, node);
785
786 if (oldpda)
787 return 0; /* have a usable pda */
788 else
789 return -1;
790 }
791
792 if (oldpda) {
793 memcpy(newpda, oldpda, size);
794 if (!after_bootmem)
795 free_bootmem((unsigned long)oldpda, size);
796 }
797
798 newpda->in_bootmem = 0;
799 cpu_pda(cpu) = newpda;
800 return 0;
801}
802#endif /* CONFIG_X86_64 */
803
835static int __cpuinit do_boot_cpu(int apicid, int cpu) 804static int __cpuinit do_boot_cpu(int apicid, int cpu)
836/* 805/*
837 * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad 806 * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad
@@ -848,28 +817,14 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
848 .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done), 817 .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
849 }; 818 };
850 INIT_WORK(&c_idle.work, do_fork_idle); 819 INIT_WORK(&c_idle.work, do_fork_idle);
851#ifdef CONFIG_X86_64
852 /* allocate memory for gdts of secondary cpus. Hotplug is considered */
853 if (!cpu_gdt_descr[cpu].address &&
854 !(cpu_gdt_descr[cpu].address = get_zeroed_page(GFP_KERNEL))) {
855 printk(KERN_ERR "Failed to allocate GDT for CPU %d\n", cpu);
856 return -1;
857 }
858 820
821#ifdef CONFIG_X86_64
859 /* Allocate node local memory for AP pdas */ 822 /* Allocate node local memory for AP pdas */
860 if (cpu_pda(cpu) == &boot_cpu_pda[cpu]) { 823 if (cpu > 0) {
861 struct x8664_pda *newpda, *pda; 824 boot_error = get_local_pda(cpu);
862 int node = cpu_to_node(cpu); 825 if (boot_error)
863 pda = cpu_pda(cpu); 826 goto restore_state;
864 newpda = kmalloc_node(sizeof(struct x8664_pda), GFP_ATOMIC, 827 /* if can't get pda memory, can't start cpu */
865 node);
866 if (newpda) {
867 memcpy(newpda, pda, sizeof(struct x8664_pda));
868 cpu_pda(cpu) = newpda;
869 } else
870 printk(KERN_ERR
871 "Could not allocate node local PDA for CPU %d on node %d\n",
872 cpu, node);
873 } 828 }
874#endif 829#endif
875 830
@@ -905,18 +860,15 @@ do_rest:
905#ifdef CONFIG_X86_32 860#ifdef CONFIG_X86_32
906 per_cpu(current_task, cpu) = c_idle.idle; 861 per_cpu(current_task, cpu) = c_idle.idle;
907 init_gdt(cpu); 862 init_gdt(cpu);
908 early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
909 c_idle.idle->thread.ip = (unsigned long) start_secondary;
910 /* Stack for startup_32 can be just as for start_secondary onwards */ 863 /* Stack for startup_32 can be just as for start_secondary onwards */
911 stack_start.sp = (void *) c_idle.idle->thread.sp;
912 irq_ctx_init(cpu); 864 irq_ctx_init(cpu);
913#else 865#else
914 cpu_pda(cpu)->pcurrent = c_idle.idle; 866 cpu_pda(cpu)->pcurrent = c_idle.idle;
915 init_rsp = c_idle.idle->thread.sp;
916 load_sp0(&per_cpu(init_tss, cpu), &c_idle.idle->thread);
917 initial_code = (unsigned long)start_secondary;
918 clear_tsk_thread_flag(c_idle.idle, TIF_FORK); 867 clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
919#endif 868#endif
869 early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
870 initial_code = (unsigned long)start_secondary;
871 stack_start.sp = (void *) c_idle.idle->thread.sp;
920 872
921 /* start_ip had better be page-aligned! */ 873 /* start_ip had better be page-aligned! */
922 start_ip = setup_trampoline(); 874 start_ip = setup_trampoline();
@@ -987,16 +939,14 @@ do_rest:
987 inquire_remote_apic(apicid); 939 inquire_remote_apic(apicid);
988 } 940 }
989 } 941 }
990
991 if (boot_error) {
992 /* Try to put things back the way they were before ... */
993 unmap_cpu_to_logical_apicid(cpu);
994#ifdef CONFIG_X86_64 942#ifdef CONFIG_X86_64
995 clear_node_cpumask(cpu); /* was set by numa_add_cpu */ 943restore_state:
996#endif 944#endif
945 if (boot_error) {
946 /* Try to put things back the way they were before ... */
947 numa_remove_cpu(cpu); /* was set by numa_add_cpu */
997 cpu_clear(cpu, cpu_callout_map); /* was set by do_boot_cpu() */ 948 cpu_clear(cpu, cpu_callout_map); /* was set by do_boot_cpu() */
998 cpu_clear(cpu, cpu_initialized); /* was set by cpu_init() */ 949 cpu_clear(cpu, cpu_initialized); /* was set by cpu_init() */
999 cpu_clear(cpu, cpu_possible_map);
1000 cpu_clear(cpu, cpu_present_map); 950 cpu_clear(cpu, cpu_present_map);
1001 per_cpu(x86_cpu_to_apicid, cpu) = BAD_APICID; 951 per_cpu(x86_cpu_to_apicid, cpu) = BAD_APICID;
1002 } 952 }
@@ -1088,14 +1038,12 @@ static __init void disable_smp(void)
1088{ 1038{
1089 cpu_present_map = cpumask_of_cpu(0); 1039 cpu_present_map = cpumask_of_cpu(0);
1090 cpu_possible_map = cpumask_of_cpu(0); 1040 cpu_possible_map = cpumask_of_cpu(0);
1091#ifdef CONFIG_X86_32
1092 smpboot_clear_io_apic_irqs(); 1041 smpboot_clear_io_apic_irqs();
1093#endif 1042
1094 if (smp_found_config) 1043 if (smp_found_config)
1095 phys_cpu_present_map = 1044 physid_set_mask_of_physid(boot_cpu_physical_apicid, &phys_cpu_present_map);
1096 physid_mask_of_physid(boot_cpu_physical_apicid);
1097 else 1045 else
1098 phys_cpu_present_map = physid_mask_of_physid(0); 1046 physid_set_mask_of_physid(0, &phys_cpu_present_map);
1099 map_cpu_to_logical_apicid(); 1047 map_cpu_to_logical_apicid();
1100 cpu_set(0, per_cpu(cpu_sibling_map, 0)); 1048 cpu_set(0, per_cpu(cpu_sibling_map, 0));
1101 cpu_set(0, per_cpu(cpu_core_map, 0)); 1049 cpu_set(0, per_cpu(cpu_core_map, 0));
@@ -1158,12 +1106,12 @@ static int __init smp_sanity_check(unsigned max_cpus)
1158 * If SMP should be disabled, then really disable it! 1106 * If SMP should be disabled, then really disable it!
1159 */ 1107 */
1160 if (!max_cpus) { 1108 if (!max_cpus) {
1161 printk(KERN_INFO "SMP mode deactivated," 1109 printk(KERN_INFO "SMP mode deactivated.\n");
1162 "forcing use of dummy APIC emulation.\n");
1163 smpboot_clear_io_apic(); 1110 smpboot_clear_io_apic();
1164#ifdef CONFIG_X86_32 1111
1112 localise_nmi_watchdog();
1113
1165 connect_bsp_APIC(); 1114 connect_bsp_APIC();
1166#endif
1167 setup_local_APIC(); 1115 setup_local_APIC();
1168 end_local_APIC_setup(); 1116 end_local_APIC_setup();
1169 return -1; 1117 return -1;
@@ -1190,7 +1138,7 @@ static void __init smp_cpu_index_default(void)
1190 */ 1138 */
1191void __init native_smp_prepare_cpus(unsigned int max_cpus) 1139void __init native_smp_prepare_cpus(unsigned int max_cpus)
1192{ 1140{
1193 nmi_watchdog_default(); 1141 preempt_disable();
1194 smp_cpu_index_default(); 1142 smp_cpu_index_default();
1195 current_cpu_data = boot_cpu_data; 1143 current_cpu_data = boot_cpu_data;
1196 cpu_callin_map = cpumask_of_cpu(0); 1144 cpu_callin_map = cpumask_of_cpu(0);
@@ -1206,7 +1154,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
1206 if (smp_sanity_check(max_cpus) < 0) { 1154 if (smp_sanity_check(max_cpus) < 0) {
1207 printk(KERN_INFO "SMP disabled\n"); 1155 printk(KERN_INFO "SMP disabled\n");
1208 disable_smp(); 1156 disable_smp();
1209 return; 1157 goto out;
1210 } 1158 }
1211 1159
1212 preempt_disable(); 1160 preempt_disable();
@@ -1217,9 +1165,8 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
1217 } 1165 }
1218 preempt_enable(); 1166 preempt_enable();
1219 1167
1220#ifdef CONFIG_X86_32
1221 connect_bsp_APIC(); 1168 connect_bsp_APIC();
1222#endif 1169
1223 /* 1170 /*
1224 * Switch from PIC to APIC mode. 1171 * Switch from PIC to APIC mode.
1225 */ 1172 */
@@ -1246,6 +1193,8 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
1246 printk(KERN_INFO "CPU%d: ", 0); 1193 printk(KERN_INFO "CPU%d: ", 0);
1247 print_cpu_info(&cpu_data(0)); 1194 print_cpu_info(&cpu_data(0));
1248 setup_boot_clock(); 1195 setup_boot_clock();
1196out:
1197 preempt_enable();
1249} 1198}
1250/* 1199/*
1251 * Early setup to make printk work. 1200 * Early setup to make printk work.
@@ -1255,8 +1204,8 @@ void __init native_smp_prepare_boot_cpu(void)
1255 int me = smp_processor_id(); 1204 int me = smp_processor_id();
1256#ifdef CONFIG_X86_32 1205#ifdef CONFIG_X86_32
1257 init_gdt(me); 1206 init_gdt(me);
1258 switch_to_new_gdt();
1259#endif 1207#endif
1208 switch_to_new_gdt();
1260 /* already set me in cpu_online_map in boot_cpu_init() */ 1209 /* already set me in cpu_online_map in boot_cpu_init() */
1261 cpu_set(me, cpu_callout_map); 1210 cpu_set(me, cpu_callout_map);
1262 per_cpu(cpu_state, me) = CPU_ONLINE; 1211 per_cpu(cpu_state, me) = CPU_ONLINE;
@@ -1276,23 +1225,6 @@ void __init native_smp_cpus_done(unsigned int max_cpus)
1276 1225
1277#ifdef CONFIG_HOTPLUG_CPU 1226#ifdef CONFIG_HOTPLUG_CPU
1278 1227
1279# ifdef CONFIG_X86_32
1280void cpu_exit_clear(void)
1281{
1282 int cpu = raw_smp_processor_id();
1283
1284 idle_task_exit();
1285
1286 cpu_uninit();
1287 irq_ctx_exit(cpu);
1288
1289 cpu_clear(cpu, cpu_callout_map);
1290 cpu_clear(cpu, cpu_callin_map);
1291
1292 unmap_cpu_to_logical_apicid(cpu);
1293}
1294# endif /* CONFIG_X86_32 */
1295
1296static void remove_siblinginfo(int cpu) 1228static void remove_siblinginfo(int cpu)
1297{ 1229{
1298 int sibling; 1230 int sibling;
@@ -1346,12 +1278,20 @@ __init void prefill_possible_map(void)
1346 int i; 1278 int i;
1347 int possible; 1279 int possible;
1348 1280
1281 /* no processor from mptable or madt */
1282 if (!num_processors)
1283 num_processors = 1;
1284
1285#ifdef CONFIG_HOTPLUG_CPU
1349 if (additional_cpus == -1) { 1286 if (additional_cpus == -1) {
1350 if (disabled_cpus > 0) 1287 if (disabled_cpus > 0)
1351 additional_cpus = disabled_cpus; 1288 additional_cpus = disabled_cpus;
1352 else 1289 else
1353 additional_cpus = 0; 1290 additional_cpus = 0;
1354 } 1291 }
1292#else
1293 additional_cpus = 0;
1294#endif
1355 possible = num_processors + additional_cpus; 1295 possible = num_processors + additional_cpus;
1356 if (possible > NR_CPUS) 1296 if (possible > NR_CPUS)
1357 possible = NR_CPUS; 1297 possible = NR_CPUS;
@@ -1361,18 +1301,18 @@ __init void prefill_possible_map(void)
1361 1301
1362 for (i = 0; i < possible; i++) 1302 for (i = 0; i < possible; i++)
1363 cpu_set(i, cpu_possible_map); 1303 cpu_set(i, cpu_possible_map);
1304
1305 nr_cpu_ids = possible;
1364} 1306}
1365 1307
1366static void __ref remove_cpu_from_maps(int cpu) 1308static void __ref remove_cpu_from_maps(int cpu)
1367{ 1309{
1368 cpu_clear(cpu, cpu_online_map); 1310 cpu_clear(cpu, cpu_online_map);
1369#ifdef CONFIG_X86_64
1370 cpu_clear(cpu, cpu_callout_map); 1311 cpu_clear(cpu, cpu_callout_map);
1371 cpu_clear(cpu, cpu_callin_map); 1312 cpu_clear(cpu, cpu_callin_map);
1372 /* was set by cpu_init() */ 1313 /* was set by cpu_init() */
1373 clear_bit(cpu, (unsigned long *)&cpu_initialized); 1314 clear_bit(cpu, (unsigned long *)&cpu_initialized);
1374 clear_node_cpumask(cpu); 1315 numa_remove_cpu(cpu);
1375#endif
1376} 1316}
1377 1317
1378int __cpu_disable(void) 1318int __cpu_disable(void)
diff --git a/arch/x86/kernel/smpcommon.c b/arch/x86/kernel/smpcommon.c
index 3449064d141a..99941b37eca0 100644
--- a/arch/x86/kernel/smpcommon.c
+++ b/arch/x86/kernel/smpcommon.c
@@ -25,59 +25,3 @@ __cpuinit void init_gdt(int cpu)
25 per_cpu(cpu_number, cpu) = cpu; 25 per_cpu(cpu_number, cpu) = cpu;
26} 26}
27#endif 27#endif
28
29/**
30 * smp_call_function(): Run a function on all other CPUs.
31 * @func: The function to run. This must be fast and non-blocking.
32 * @info: An arbitrary pointer to pass to the function.
33 * @nonatomic: Unused.
34 * @wait: If true, wait (atomically) until function has completed on other CPUs.
35 *
36 * Returns 0 on success, else a negative status code.
37 *
38 * If @wait is true, then returns once @func has returned; otherwise
39 * it returns just before the target cpu calls @func.
40 *
41 * You must not call this function with disabled interrupts or from a
42 * hardware interrupt handler or from a bottom half handler.
43 */
44int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
45 int wait)
46{
47 return smp_call_function_mask(cpu_online_map, func, info, wait);
48}
49EXPORT_SYMBOL(smp_call_function);
50
51/**
52 * smp_call_function_single - Run a function on a specific CPU
53 * @cpu: The target CPU. Cannot be the calling CPU.
54 * @func: The function to run. This must be fast and non-blocking.
55 * @info: An arbitrary pointer to pass to the function.
56 * @nonatomic: Unused.
57 * @wait: If true, wait until function has completed on other CPUs.
58 *
59 * Returns 0 on success, else a negative status code.
60 *
61 * If @wait is true, then returns once @func has returned; otherwise
62 * it returns just before the target cpu calls @func.
63 */
64int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
65 int nonatomic, int wait)
66{
67 /* prevent preemption and reschedule on another processor */
68 int ret;
69 int me = get_cpu();
70 if (cpu == me) {
71 local_irq_disable();
72 func(info);
73 local_irq_enable();
74 put_cpu();
75 return 0;
76 }
77
78 ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
79
80 put_cpu();
81 return ret;
82}
83EXPORT_SYMBOL(smp_call_function_single);
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index c28c342c162f..a03e7f6d90c3 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -74,6 +74,7 @@ void save_stack_trace(struct stack_trace *trace)
74 if (trace->nr_entries < trace->max_entries) 74 if (trace->nr_entries < trace->max_entries)
75 trace->entries[trace->nr_entries++] = ULONG_MAX; 75 trace->entries[trace->nr_entries++] = ULONG_MAX;
76} 76}
77EXPORT_SYMBOL_GPL(save_stack_trace);
77 78
78void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) 79void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
79{ 80{
@@ -81,3 +82,4 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
81 if (trace->nr_entries < trace->max_entries) 82 if (trace->nr_entries < trace->max_entries)
82 trace->entries[trace->nr_entries++] = ULONG_MAX; 83 trace->entries[trace->nr_entries++] = ULONG_MAX;
83} 84}
85EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
diff --git a/arch/x86/kernel/summit_32.c b/arch/x86/kernel/summit_32.c
index ae751094eba9..d67ce5f044ba 100644
--- a/arch/x86/kernel/summit_32.c
+++ b/arch/x86/kernel/summit_32.c
@@ -36,7 +36,9 @@ static struct rio_table_hdr *rio_table_hdr __initdata;
36static struct scal_detail *scal_devs[MAX_NUMNODES] __initdata; 36static struct scal_detail *scal_devs[MAX_NUMNODES] __initdata;
37static struct rio_detail *rio_devs[MAX_NUMNODES*4] __initdata; 37static struct rio_detail *rio_devs[MAX_NUMNODES*4] __initdata;
38 38
39#ifndef CONFIG_X86_NUMAQ
39static int mp_bus_id_to_node[MAX_MP_BUSSES] __initdata; 40static int mp_bus_id_to_node[MAX_MP_BUSSES] __initdata;
41#endif
40 42
41static int __init setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus) 43static int __init setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
42{ 44{
diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
index d2ab52cc1d6b..7066cb855a60 100644
--- a/arch/x86/kernel/sys_i386_32.c
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -19,8 +19,8 @@
19#include <linux/utsname.h> 19#include <linux/utsname.h>
20#include <linux/ipc.h> 20#include <linux/ipc.h>
21 21
22#include <asm/uaccess.h> 22#include <linux/uaccess.h>
23#include <asm/unistd.h> 23#include <linux/unistd.h>
24 24
25asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, 25asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
26 unsigned long prot, unsigned long flags, 26 unsigned long prot, unsigned long flags,
@@ -103,7 +103,7 @@ asmlinkage int old_select(struct sel_arg_struct __user *arg)
103 * 103 *
104 * This is really horribly ugly. 104 * This is really horribly ugly.
105 */ 105 */
106asmlinkage int sys_ipc (uint call, int first, int second, 106asmlinkage int sys_ipc(uint call, int first, int second,
107 int third, void __user *ptr, long fifth) 107 int third, void __user *ptr, long fifth)
108{ 108{
109 int version, ret; 109 int version, ret;
@@ -113,24 +113,24 @@ asmlinkage int sys_ipc (uint call, int first, int second,
113 113
114 switch (call) { 114 switch (call) {
115 case SEMOP: 115 case SEMOP:
116 return sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL); 116 return sys_semtimedop(first, (struct sembuf __user *)ptr, second, NULL);
117 case SEMTIMEDOP: 117 case SEMTIMEDOP:
118 return sys_semtimedop(first, (struct sembuf __user *)ptr, second, 118 return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
119 (const struct timespec __user *)fifth); 119 (const struct timespec __user *)fifth);
120 120
121 case SEMGET: 121 case SEMGET:
122 return sys_semget (first, second, third); 122 return sys_semget(first, second, third);
123 case SEMCTL: { 123 case SEMCTL: {
124 union semun fourth; 124 union semun fourth;
125 if (!ptr) 125 if (!ptr)
126 return -EINVAL; 126 return -EINVAL;
127 if (get_user(fourth.__pad, (void __user * __user *) ptr)) 127 if (get_user(fourth.__pad, (void __user * __user *) ptr))
128 return -EFAULT; 128 return -EFAULT;
129 return sys_semctl (first, second, third, fourth); 129 return sys_semctl(first, second, third, fourth);
130 } 130 }
131 131
132 case MSGSND: 132 case MSGSND:
133 return sys_msgsnd (first, (struct msgbuf __user *) ptr, 133 return sys_msgsnd(first, (struct msgbuf __user *) ptr,
134 second, third); 134 second, third);
135 case MSGRCV: 135 case MSGRCV:
136 switch (version) { 136 switch (version) {
@@ -138,45 +138,45 @@ asmlinkage int sys_ipc (uint call, int first, int second,
138 struct ipc_kludge tmp; 138 struct ipc_kludge tmp;
139 if (!ptr) 139 if (!ptr)
140 return -EINVAL; 140 return -EINVAL;
141 141
142 if (copy_from_user(&tmp, 142 if (copy_from_user(&tmp,
143 (struct ipc_kludge __user *) ptr, 143 (struct ipc_kludge __user *) ptr,
144 sizeof (tmp))) 144 sizeof(tmp)))
145 return -EFAULT; 145 return -EFAULT;
146 return sys_msgrcv (first, tmp.msgp, second, 146 return sys_msgrcv(first, tmp.msgp, second,
147 tmp.msgtyp, third); 147 tmp.msgtyp, third);
148 } 148 }
149 default: 149 default:
150 return sys_msgrcv (first, 150 return sys_msgrcv(first,
151 (struct msgbuf __user *) ptr, 151 (struct msgbuf __user *) ptr,
152 second, fifth, third); 152 second, fifth, third);
153 } 153 }
154 case MSGGET: 154 case MSGGET:
155 return sys_msgget ((key_t) first, second); 155 return sys_msgget((key_t) first, second);
156 case MSGCTL: 156 case MSGCTL:
157 return sys_msgctl (first, second, (struct msqid_ds __user *) ptr); 157 return sys_msgctl(first, second, (struct msqid_ds __user *) ptr);
158 158
159 case SHMAT: 159 case SHMAT:
160 switch (version) { 160 switch (version) {
161 default: { 161 default: {
162 ulong raddr; 162 ulong raddr;
163 ret = do_shmat (first, (char __user *) ptr, second, &raddr); 163 ret = do_shmat(first, (char __user *) ptr, second, &raddr);
164 if (ret) 164 if (ret)
165 return ret; 165 return ret;
166 return put_user (raddr, (ulong __user *) third); 166 return put_user(raddr, (ulong __user *) third);
167 } 167 }
168 case 1: /* iBCS2 emulator entry point */ 168 case 1: /* iBCS2 emulator entry point */
169 if (!segment_eq(get_fs(), get_ds())) 169 if (!segment_eq(get_fs(), get_ds()))
170 return -EINVAL; 170 return -EINVAL;
171 /* The "(ulong *) third" is valid _only_ because of the kernel segment thing */ 171 /* The "(ulong *) third" is valid _only_ because of the kernel segment thing */
172 return do_shmat (first, (char __user *) ptr, second, (ulong *) third); 172 return do_shmat(first, (char __user *) ptr, second, (ulong *) third);
173 } 173 }
174 case SHMDT: 174 case SHMDT:
175 return sys_shmdt ((char __user *)ptr); 175 return sys_shmdt((char __user *)ptr);
176 case SHMGET: 176 case SHMGET:
177 return sys_shmget (first, second, third); 177 return sys_shmget(first, second, third);
178 case SHMCTL: 178 case SHMCTL:
179 return sys_shmctl (first, second, 179 return sys_shmctl(first, second,
180 (struct shmid_ds __user *) ptr); 180 (struct shmid_ds __user *) ptr);
181 default: 181 default:
182 return -ENOSYS; 182 return -ENOSYS;
@@ -186,28 +186,28 @@ asmlinkage int sys_ipc (uint call, int first, int second,
186/* 186/*
187 * Old cruft 187 * Old cruft
188 */ 188 */
189asmlinkage int sys_uname(struct old_utsname __user * name) 189asmlinkage int sys_uname(struct old_utsname __user *name)
190{ 190{
191 int err; 191 int err;
192 if (!name) 192 if (!name)
193 return -EFAULT; 193 return -EFAULT;
194 down_read(&uts_sem); 194 down_read(&uts_sem);
195 err = copy_to_user(name, utsname(), sizeof (*name)); 195 err = copy_to_user(name, utsname(), sizeof(*name));
196 up_read(&uts_sem); 196 up_read(&uts_sem);
197 return err?-EFAULT:0; 197 return err? -EFAULT:0;
198} 198}
199 199
200asmlinkage int sys_olduname(struct oldold_utsname __user * name) 200asmlinkage int sys_olduname(struct oldold_utsname __user *name)
201{ 201{
202 int error; 202 int error;
203 203
204 if (!name) 204 if (!name)
205 return -EFAULT; 205 return -EFAULT;
206 if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname))) 206 if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
207 return -EFAULT; 207 return -EFAULT;
208 208
209 down_read(&uts_sem); 209 down_read(&uts_sem);
210 210
211 error = __copy_to_user(&name->sysname, &utsname()->sysname, 211 error = __copy_to_user(&name->sysname, &utsname()->sysname,
212 __OLD_UTS_LEN); 212 __OLD_UTS_LEN);
213 error |= __put_user(0, name->sysname + __OLD_UTS_LEN); 213 error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
@@ -223,9 +223,9 @@ asmlinkage int sys_olduname(struct oldold_utsname __user * name)
223 error |= __copy_to_user(&name->machine, &utsname()->machine, 223 error |= __copy_to_user(&name->machine, &utsname()->machine,
224 __OLD_UTS_LEN); 224 __OLD_UTS_LEN);
225 error |= __put_user(0, name->machine + __OLD_UTS_LEN); 225 error |= __put_user(0, name->machine + __OLD_UTS_LEN);
226 226
227 up_read(&uts_sem); 227 up_read(&uts_sem);
228 228
229 error = error ? -EFAULT : 0; 229 error = error ? -EFAULT : 0;
230 230
231 return error; 231 return error;
@@ -241,6 +241,6 @@ int kernel_execve(const char *filename, char *const argv[], char *const envp[])
241 long __res; 241 long __res;
242 asm volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" 242 asm volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx"
243 : "=a" (__res) 243 : "=a" (__res)
244 : "0" (__NR_execve),"ri" (filename),"c" (argv), "d" (envp) : "memory"); 244 : "0" (__NR_execve), "ri" (filename), "c" (argv), "d" (envp) : "memory");
245 return __res; 245 return __res;
246} 246}
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 2ff21f398934..059ca6ee59b4 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -39,9 +39,6 @@
39 39
40#include "do_timer.h" 40#include "do_timer.h"
41 41
42unsigned int cpu_khz; /* Detected as we calibrate the TSC */
43EXPORT_SYMBOL(cpu_khz);
44
45int timer_ack; 42int timer_ack;
46 43
47unsigned long profile_pc(struct pt_regs *regs) 44unsigned long profile_pc(struct pt_regs *regs)
@@ -84,8 +81,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
84 if (timer_ack) { 81 if (timer_ack) {
85 /* 82 /*
86 * Subtle, when I/O APICs are used we have to ack timer IRQ 83 * Subtle, when I/O APICs are used we have to ack timer IRQ
87 * manually to reset the IRR bit for do_slow_gettimeoffset(). 84 * manually to deassert NMI lines for the watchdog if run
88 * This will also deassert NMI lines for the watchdog if run
89 * on an 82489DX-based system. 85 * on an 82489DX-based system.
90 */ 86 */
91 spin_lock(&i8259A_lock); 87 spin_lock(&i8259A_lock);
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index c737849e2ef7..e3d49c553af2 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -56,7 +56,7 @@ static irqreturn_t timer_event_interrupt(int irq, void *dev_id)
56/* calibrate_cpu is used on systems with fixed rate TSCs to determine 56/* calibrate_cpu is used on systems with fixed rate TSCs to determine
57 * processor frequency */ 57 * processor frequency */
58#define TICK_COUNT 100000000 58#define TICK_COUNT 100000000
59unsigned long __init native_calculate_cpu_khz(void) 59unsigned long __init calibrate_cpu(void)
60{ 60{
61 int tsc_start, tsc_now; 61 int tsc_start, tsc_now;
62 int i, no_ctr_free; 62 int i, no_ctr_free;
@@ -116,23 +116,11 @@ void __init hpet_time_init(void)
116 116
117void __init time_init(void) 117void __init time_init(void)
118{ 118{
119 tsc_calibrate(); 119 tsc_init();
120
121 cpu_khz = tsc_khz;
122 if (cpu_has(&boot_cpu_data, X86_FEATURE_CONSTANT_TSC) &&
123 (boot_cpu_data.x86_vendor == X86_VENDOR_AMD))
124 cpu_khz = calculate_cpu_khz();
125
126 if (unsynchronized_tsc())
127 mark_tsc_unstable("TSCs unsynchronized");
128
129 if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP)) 120 if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP))
130 vgetcpu_mode = VGETCPU_RDTSCP; 121 vgetcpu_mode = VGETCPU_RDTSCP;
131 else 122 else
132 vgetcpu_mode = VGETCPU_LSL; 123 vgetcpu_mode = VGETCPU_LSL;
133 124
134 printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n",
135 cpu_khz / 1000, cpu_khz % 1000);
136 init_tsc_clocksource();
137 late_time_init = choose_time_init(); 125 late_time_init = choose_time_init();
138} 126}
diff --git a/arch/x86/kernel/tlb_32.c b/arch/x86/kernel/tlb_32.c
index 9bb2363851af..fec1ecedc9b7 100644
--- a/arch/x86/kernel/tlb_32.c
+++ b/arch/x86/kernel/tlb_32.c
@@ -238,6 +238,6 @@ static void do_flush_tlb_all(void *info)
238 238
239void flush_tlb_all(void) 239void flush_tlb_all(void)
240{ 240{
241 on_each_cpu(do_flush_tlb_all, NULL, 1, 1); 241 on_each_cpu(do_flush_tlb_all, NULL, 1);
242} 242}
243 243
diff --git a/arch/x86/kernel/tlb_64.c b/arch/x86/kernel/tlb_64.c
index a1f07d793202..dcbf7a1159ea 100644
--- a/arch/x86/kernel/tlb_64.c
+++ b/arch/x86/kernel/tlb_64.c
@@ -15,6 +15,8 @@
15#include <asm/proto.h> 15#include <asm/proto.h>
16#include <asm/apicdef.h> 16#include <asm/apicdef.h>
17#include <asm/idle.h> 17#include <asm/idle.h>
18#include <asm/uv/uv_hub.h>
19#include <asm/uv/uv_bau.h>
18 20
19#include <mach_ipi.h> 21#include <mach_ipi.h>
20/* 22/*
@@ -162,6 +164,9 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm,
162 union smp_flush_state *f; 164 union smp_flush_state *f;
163 cpumask_t cpumask = *cpumaskp; 165 cpumask_t cpumask = *cpumaskp;
164 166
167 if (is_uv_system() && uv_flush_tlb_others(&cpumask, mm, va))
168 return;
169
165 /* Caller has disabled preemption */ 170 /* Caller has disabled preemption */
166 sender = smp_processor_id() % NUM_INVALIDATE_TLB_VECTORS; 171 sender = smp_processor_id() % NUM_INVALIDATE_TLB_VECTORS;
167 f = &per_cpu(flush_state, sender); 172 f = &per_cpu(flush_state, sender);
@@ -270,5 +275,5 @@ static void do_flush_tlb_all(void *info)
270 275
271void flush_tlb_all(void) 276void flush_tlb_all(void)
272{ 277{
273 on_each_cpu(do_flush_tlb_all, NULL, 1, 1); 278 on_each_cpu(do_flush_tlb_all, NULL, 1);
274} 279}
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
new file mode 100644
index 000000000000..d0fbb7712ab0
--- /dev/null
+++ b/arch/x86/kernel/tlb_uv.c
@@ -0,0 +1,792 @@
1/*
2 * SGI UltraViolet TLB flush routines.
3 *
4 * (c) 2008 Cliff Wickman <cpw@sgi.com>, SGI.
5 *
6 * This code is released under the GNU General Public License version 2 or
7 * later.
8 */
9#include <linux/mc146818rtc.h>
10#include <linux/proc_fs.h>
11#include <linux/kernel.h>
12
13#include <asm/mmu_context.h>
14#include <asm/uv/uv_mmrs.h>
15#include <asm/uv/uv_hub.h>
16#include <asm/uv/uv_bau.h>
17#include <asm/genapic.h>
18#include <asm/idle.h>
19#include <asm/tsc.h>
20
21#include <mach_apic.h>
22
23static struct bau_control **uv_bau_table_bases __read_mostly;
24static int uv_bau_retry_limit __read_mostly;
25
26/* position of pnode (which is nasid>>1): */
27static int uv_nshift __read_mostly;
28
29static unsigned long uv_mmask __read_mostly;
30
31static DEFINE_PER_CPU(struct ptc_stats, ptcstats);
32static DEFINE_PER_CPU(struct bau_control, bau_control);
33
34/*
35 * Free a software acknowledge hardware resource by clearing its Pending
36 * bit. This will return a reply to the sender.
37 * If the message has timed out, a reply has already been sent by the
38 * hardware but the resource has not been released. In that case our
39 * clear of the Timeout bit (as well) will free the resource. No reply will
40 * be sent (the hardware will only do one reply per message).
41 */
42static void uv_reply_to_message(int resource,
43 struct bau_payload_queue_entry *msg,
44 struct bau_msg_status *msp)
45{
46 unsigned long dw;
47
48 dw = (1 << (resource + UV_SW_ACK_NPENDING)) | (1 << resource);
49 msg->replied_to = 1;
50 msg->sw_ack_vector = 0;
51 if (msp)
52 msp->seen_by.bits = 0;
53 uv_write_local_mmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS, dw);
54}
55
56/*
57 * Do all the things a cpu should do for a TLB shootdown message.
58 * Other cpu's may come here at the same time for this message.
59 */
60static void uv_bau_process_message(struct bau_payload_queue_entry *msg,
61 int msg_slot, int sw_ack_slot)
62{
63 unsigned long this_cpu_mask;
64 struct bau_msg_status *msp;
65 int cpu;
66
67 msp = __get_cpu_var(bau_control).msg_statuses + msg_slot;
68 cpu = uv_blade_processor_id();
69 msg->number_of_cpus =
70 uv_blade_nr_online_cpus(uv_node_to_blade_id(numa_node_id()));
71 this_cpu_mask = 1UL << cpu;
72 if (msp->seen_by.bits & this_cpu_mask)
73 return;
74 atomic_or_long(&msp->seen_by.bits, this_cpu_mask);
75
76 if (msg->replied_to == 1)
77 return;
78
79 if (msg->address == TLB_FLUSH_ALL) {
80 local_flush_tlb();
81 __get_cpu_var(ptcstats).alltlb++;
82 } else {
83 __flush_tlb_one(msg->address);
84 __get_cpu_var(ptcstats).onetlb++;
85 }
86
87 __get_cpu_var(ptcstats).requestee++;
88
89 atomic_inc_short(&msg->acknowledge_count);
90 if (msg->number_of_cpus == msg->acknowledge_count)
91 uv_reply_to_message(sw_ack_slot, msg, msp);
92}
93
94/*
95 * Examine the payload queue on one distribution node to see
96 * which messages have not been seen, and which cpu(s) have not seen them.
97 *
98 * Returns the number of cpu's that have not responded.
99 */
100static int uv_examine_destination(struct bau_control *bau_tablesp, int sender)
101{
102 struct bau_payload_queue_entry *msg;
103 struct bau_msg_status *msp;
104 int count = 0;
105 int i;
106 int j;
107
108 for (msg = bau_tablesp->va_queue_first, i = 0; i < DEST_Q_SIZE;
109 msg++, i++) {
110 if ((msg->sending_cpu == sender) && (!msg->replied_to)) {
111 msp = bau_tablesp->msg_statuses + i;
112 printk(KERN_DEBUG
113 "blade %d: address:%#lx %d of %d, not cpu(s): ",
114 i, msg->address, msg->acknowledge_count,
115 msg->number_of_cpus);
116 for (j = 0; j < msg->number_of_cpus; j++) {
117 if (!((1L << j) & msp->seen_by.bits)) {
118 count++;
119 printk("%d ", j);
120 }
121 }
122 printk("\n");
123 }
124 }
125 return count;
126}
127
128/*
129 * Examine the payload queue on all the distribution nodes to see
130 * which messages have not been seen, and which cpu(s) have not seen them.
131 *
132 * Returns the number of cpu's that have not responded.
133 */
134static int uv_examine_destinations(struct bau_target_nodemask *distribution)
135{
136 int sender;
137 int i;
138 int count = 0;
139
140 sender = smp_processor_id();
141 for (i = 0; i < sizeof(struct bau_target_nodemask) * BITSPERBYTE; i++) {
142 if (!bau_node_isset(i, distribution))
143 continue;
144 count += uv_examine_destination(uv_bau_table_bases[i], sender);
145 }
146 return count;
147}
148
149/*
150 * wait for completion of a broadcast message
151 *
152 * return COMPLETE, RETRY or GIVEUP
153 */
154static int uv_wait_completion(struct bau_desc *bau_desc,
155 unsigned long mmr_offset, int right_shift)
156{
157 int exams = 0;
158 long destination_timeouts = 0;
159 long source_timeouts = 0;
160 unsigned long descriptor_status;
161
162 while ((descriptor_status = (((unsigned long)
163 uv_read_local_mmr(mmr_offset) >>
164 right_shift) & UV_ACT_STATUS_MASK)) !=
165 DESC_STATUS_IDLE) {
166 if (descriptor_status == DESC_STATUS_SOURCE_TIMEOUT) {
167 source_timeouts++;
168 if (source_timeouts > SOURCE_TIMEOUT_LIMIT)
169 source_timeouts = 0;
170 __get_cpu_var(ptcstats).s_retry++;
171 return FLUSH_RETRY;
172 }
173 /*
174 * spin here looking for progress at the destinations
175 */
176 if (descriptor_status == DESC_STATUS_DESTINATION_TIMEOUT) {
177 destination_timeouts++;
178 if (destination_timeouts > DESTINATION_TIMEOUT_LIMIT) {
179 /*
180 * returns number of cpus not responding
181 */
182 if (uv_examine_destinations
183 (&bau_desc->distribution) == 0) {
184 __get_cpu_var(ptcstats).d_retry++;
185 return FLUSH_RETRY;
186 }
187 exams++;
188 if (exams >= uv_bau_retry_limit) {
189 printk(KERN_DEBUG
190 "uv_flush_tlb_others");
191 printk("giving up on cpu %d\n",
192 smp_processor_id());
193 return FLUSH_GIVEUP;
194 }
195 /*
196 * delays can hang the simulator
197 udelay(1000);
198 */
199 destination_timeouts = 0;
200 }
201 }
202 }
203 return FLUSH_COMPLETE;
204}
205
206/**
207 * uv_flush_send_and_wait
208 *
209 * Send a broadcast and wait for a broadcast message to complete.
210 *
211 * The cpumaskp mask contains the cpus the broadcast was sent to.
212 *
213 * Returns 1 if all remote flushing was done. The mask is zeroed.
214 * Returns 0 if some remote flushing remains to be done. The mask is left
215 * unchanged.
216 */
217int uv_flush_send_and_wait(int cpu, int this_blade, struct bau_desc *bau_desc,
218 cpumask_t *cpumaskp)
219{
220 int completion_status = 0;
221 int right_shift;
222 int tries = 0;
223 int blade;
224 int bit;
225 unsigned long mmr_offset;
226 unsigned long index;
227 cycles_t time1;
228 cycles_t time2;
229
230 if (cpu < UV_CPUS_PER_ACT_STATUS) {
231 mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0;
232 right_shift = cpu * UV_ACT_STATUS_SIZE;
233 } else {
234 mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1;
235 right_shift =
236 ((cpu - UV_CPUS_PER_ACT_STATUS) * UV_ACT_STATUS_SIZE);
237 }
238 time1 = get_cycles();
239 do {
240 tries++;
241 index = (1UL << UVH_LB_BAU_SB_ACTIVATION_CONTROL_PUSH_SHFT) |
242 cpu;
243 uv_write_local_mmr(UVH_LB_BAU_SB_ACTIVATION_CONTROL, index);
244 completion_status = uv_wait_completion(bau_desc, mmr_offset,
245 right_shift);
246 } while (completion_status == FLUSH_RETRY);
247 time2 = get_cycles();
248 __get_cpu_var(ptcstats).sflush += (time2 - time1);
249 if (tries > 1)
250 __get_cpu_var(ptcstats).retriesok++;
251
252 if (completion_status == FLUSH_GIVEUP) {
253 /*
254 * Cause the caller to do an IPI-style TLB shootdown on
255 * the cpu's, all of which are still in the mask.
256 */
257 __get_cpu_var(ptcstats).ptc_i++;
258 return 0;
259 }
260
261 /*
262 * Success, so clear the remote cpu's from the mask so we don't
263 * use the IPI method of shootdown on them.
264 */
265 for_each_cpu_mask(bit, *cpumaskp) {
266 blade = uv_cpu_to_blade_id(bit);
267 if (blade == this_blade)
268 continue;
269 cpu_clear(bit, *cpumaskp);
270 }
271 if (!cpus_empty(*cpumaskp))
272 return 0;
273 return 1;
274}
275
276/**
277 * uv_flush_tlb_others - globally purge translation cache of a virtual
278 * address or all TLB's
279 * @cpumaskp: mask of all cpu's in which the address is to be removed
280 * @mm: mm_struct containing virtual address range
281 * @va: virtual address to be removed (or TLB_FLUSH_ALL for all TLB's on cpu)
282 *
283 * This is the entry point for initiating any UV global TLB shootdown.
284 *
285 * Purges the translation caches of all specified processors of the given
286 * virtual address, or purges all TLB's on specified processors.
287 *
288 * The caller has derived the cpumaskp from the mm_struct and has subtracted
289 * the local cpu from the mask. This function is called only if there
290 * are bits set in the mask. (e.g. flush_tlb_page())
291 *
292 * The cpumaskp is converted into a nodemask of the nodes containing
293 * the cpus.
294 *
295 * Returns 1 if all remote flushing was done.
296 * Returns 0 if some remote flushing remains to be done.
297 */
298int uv_flush_tlb_others(cpumask_t *cpumaskp, struct mm_struct *mm,
299 unsigned long va)
300{
301 int i;
302 int bit;
303 int blade;
304 int cpu;
305 int this_blade;
306 int locals = 0;
307 struct bau_desc *bau_desc;
308
309 cpu = uv_blade_processor_id();
310 this_blade = uv_numa_blade_id();
311 bau_desc = __get_cpu_var(bau_control).descriptor_base;
312 bau_desc += UV_ITEMS_PER_DESCRIPTOR * cpu;
313
314 bau_nodes_clear(&bau_desc->distribution, UV_DISTRIBUTION_SIZE);
315
316 i = 0;
317 for_each_cpu_mask(bit, *cpumaskp) {
318 blade = uv_cpu_to_blade_id(bit);
319 BUG_ON(blade > (UV_DISTRIBUTION_SIZE - 1));
320 if (blade == this_blade) {
321 locals++;
322 continue;
323 }
324 bau_node_set(blade, &bau_desc->distribution);
325 i++;
326 }
327 if (i == 0) {
328 /*
329 * no off_node flushing; return status for local node
330 */
331 if (locals)
332 return 0;
333 else
334 return 1;
335 }
336 __get_cpu_var(ptcstats).requestor++;
337 __get_cpu_var(ptcstats).ntargeted += i;
338
339 bau_desc->payload.address = va;
340 bau_desc->payload.sending_cpu = smp_processor_id();
341
342 return uv_flush_send_and_wait(cpu, this_blade, bau_desc, cpumaskp);
343}
344
345/*
346 * The BAU message interrupt comes here. (registered by set_intr_gate)
347 * See entry_64.S
348 *
349 * We received a broadcast assist message.
350 *
351 * Interrupts may have been disabled; this interrupt could represent
352 * the receipt of several messages.
353 *
354 * All cores/threads on this node get this interrupt.
355 * The last one to see it does the s/w ack.
356 * (the resource will not be freed until noninterruptable cpus see this
357 * interrupt; hardware will timeout the s/w ack and reply ERROR)
358 */
359void uv_bau_message_interrupt(struct pt_regs *regs)
360{
361 struct bau_payload_queue_entry *va_queue_first;
362 struct bau_payload_queue_entry *va_queue_last;
363 struct bau_payload_queue_entry *msg;
364 struct pt_regs *old_regs = set_irq_regs(regs);
365 cycles_t time1;
366 cycles_t time2;
367 int msg_slot;
368 int sw_ack_slot;
369 int fw;
370 int count = 0;
371 unsigned long local_pnode;
372
373 ack_APIC_irq();
374 exit_idle();
375 irq_enter();
376
377 time1 = get_cycles();
378
379 local_pnode = uv_blade_to_pnode(uv_numa_blade_id());
380
381 va_queue_first = __get_cpu_var(bau_control).va_queue_first;
382 va_queue_last = __get_cpu_var(bau_control).va_queue_last;
383
384 msg = __get_cpu_var(bau_control).bau_msg_head;
385 while (msg->sw_ack_vector) {
386 count++;
387 fw = msg->sw_ack_vector;
388 msg_slot = msg - va_queue_first;
389 sw_ack_slot = ffs(fw) - 1;
390
391 uv_bau_process_message(msg, msg_slot, sw_ack_slot);
392
393 msg++;
394 if (msg > va_queue_last)
395 msg = va_queue_first;
396 __get_cpu_var(bau_control).bau_msg_head = msg;
397 }
398 if (!count)
399 __get_cpu_var(ptcstats).nomsg++;
400 else if (count > 1)
401 __get_cpu_var(ptcstats).multmsg++;
402
403 time2 = get_cycles();
404 __get_cpu_var(ptcstats).dflush += (time2 - time1);
405
406 irq_exit();
407 set_irq_regs(old_regs);
408}
409
410static void uv_enable_timeouts(void)
411{
412 int i;
413 int blade;
414 int last_blade;
415 int pnode;
416 int cur_cpu = 0;
417 unsigned long apicid;
418
419 last_blade = -1;
420 for_each_online_node(i) {
421 blade = uv_node_to_blade_id(i);
422 if (blade == last_blade)
423 continue;
424 last_blade = blade;
425 apicid = per_cpu(x86_cpu_to_apicid, cur_cpu);
426 pnode = uv_blade_to_pnode(blade);
427 cur_cpu += uv_blade_nr_possible_cpus(i);
428 }
429}
430
431static void *uv_ptc_seq_start(struct seq_file *file, loff_t *offset)
432{
433 if (*offset < num_possible_cpus())
434 return offset;
435 return NULL;
436}
437
438static void *uv_ptc_seq_next(struct seq_file *file, void *data, loff_t *offset)
439{
440 (*offset)++;
441 if (*offset < num_possible_cpus())
442 return offset;
443 return NULL;
444}
445
446static void uv_ptc_seq_stop(struct seq_file *file, void *data)
447{
448}
449
450/*
451 * Display the statistics thru /proc
452 * data points to the cpu number
453 */
454static int uv_ptc_seq_show(struct seq_file *file, void *data)
455{
456 struct ptc_stats *stat;
457 int cpu;
458
459 cpu = *(loff_t *)data;
460
461 if (!cpu) {
462 seq_printf(file,
463 "# cpu requestor requestee one all sretry dretry ptc_i ");
464 seq_printf(file,
465 "sw_ack sflush dflush sok dnomsg dmult starget\n");
466 }
467 if (cpu < num_possible_cpus() && cpu_online(cpu)) {
468 stat = &per_cpu(ptcstats, cpu);
469 seq_printf(file, "cpu %d %ld %ld %ld %ld %ld %ld %ld ",
470 cpu, stat->requestor,
471 stat->requestee, stat->onetlb, stat->alltlb,
472 stat->s_retry, stat->d_retry, stat->ptc_i);
473 seq_printf(file, "%lx %ld %ld %ld %ld %ld %ld\n",
474 uv_read_global_mmr64(uv_blade_to_pnode
475 (uv_cpu_to_blade_id(cpu)),
476 UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE),
477 stat->sflush, stat->dflush,
478 stat->retriesok, stat->nomsg,
479 stat->multmsg, stat->ntargeted);
480 }
481
482 return 0;
483}
484
485/*
486 * 0: display meaning of the statistics
487 * >0: retry limit
488 */
489static ssize_t uv_ptc_proc_write(struct file *file, const char __user *user,
490 size_t count, loff_t *data)
491{
492 long newmode;
493 char optstr[64];
494
495 if (count == 0 || count > sizeof(optstr))
496 return -EINVAL;
497 if (copy_from_user(optstr, user, count))
498 return -EFAULT;
499 optstr[count - 1] = '\0';
500 if (strict_strtoul(optstr, 10, &newmode) < 0) {
501 printk(KERN_DEBUG "%s is invalid\n", optstr);
502 return -EINVAL;
503 }
504
505 if (newmode == 0) {
506 printk(KERN_DEBUG "# cpu: cpu number\n");
507 printk(KERN_DEBUG
508 "requestor: times this cpu was the flush requestor\n");
509 printk(KERN_DEBUG
510 "requestee: times this cpu was requested to flush its TLBs\n");
511 printk(KERN_DEBUG
512 "one: times requested to flush a single address\n");
513 printk(KERN_DEBUG
514 "all: times requested to flush all TLB's\n");
515 printk(KERN_DEBUG
516 "sretry: number of retries of source-side timeouts\n");
517 printk(KERN_DEBUG
518 "dretry: number of retries of destination-side timeouts\n");
519 printk(KERN_DEBUG
520 "ptc_i: times UV fell through to IPI-style flushes\n");
521 printk(KERN_DEBUG
522 "sw_ack: image of UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE\n");
523 printk(KERN_DEBUG
524 "sflush_us: cycles spent in uv_flush_tlb_others()\n");
525 printk(KERN_DEBUG
526 "dflush_us: cycles spent in handling flush requests\n");
527 printk(KERN_DEBUG "sok: successes on retry\n");
528 printk(KERN_DEBUG "dnomsg: interrupts with no message\n");
529 printk(KERN_DEBUG
530 "dmult: interrupts with multiple messages\n");
531 printk(KERN_DEBUG "starget: nodes targeted\n");
532 } else {
533 uv_bau_retry_limit = newmode;
534 printk(KERN_DEBUG "timeout retry limit:%d\n",
535 uv_bau_retry_limit);
536 }
537
538 return count;
539}
540
541static const struct seq_operations uv_ptc_seq_ops = {
542 .start = uv_ptc_seq_start,
543 .next = uv_ptc_seq_next,
544 .stop = uv_ptc_seq_stop,
545 .show = uv_ptc_seq_show
546};
547
548static int uv_ptc_proc_open(struct inode *inode, struct file *file)
549{
550 return seq_open(file, &uv_ptc_seq_ops);
551}
552
553static const struct file_operations proc_uv_ptc_operations = {
554 .open = uv_ptc_proc_open,
555 .read = seq_read,
556 .write = uv_ptc_proc_write,
557 .llseek = seq_lseek,
558 .release = seq_release,
559};
560
561static int __init uv_ptc_init(void)
562{
563 struct proc_dir_entry *proc_uv_ptc;
564
565 if (!is_uv_system())
566 return 0;
567
568 if (!proc_mkdir("sgi_uv", NULL))
569 return -EINVAL;
570
571 proc_uv_ptc = create_proc_entry(UV_PTC_BASENAME, 0444, NULL);
572 if (!proc_uv_ptc) {
573 printk(KERN_ERR "unable to create %s proc entry\n",
574 UV_PTC_BASENAME);
575 remove_proc_entry("sgi_uv", NULL);
576 return -EINVAL;
577 }
578 proc_uv_ptc->proc_fops = &proc_uv_ptc_operations;
579 return 0;
580}
581
582/*
583 * begin the initialization of the per-blade control structures
584 */
585static struct bau_control * __init uv_table_bases_init(int blade, int node)
586{
587 int i;
588 int *ip;
589 struct bau_msg_status *msp;
590 struct bau_control *bau_tabp;
591
592 bau_tabp =
593 kmalloc_node(sizeof(struct bau_control), GFP_KERNEL, node);
594 BUG_ON(!bau_tabp);
595
596 bau_tabp->msg_statuses =
597 kmalloc_node(sizeof(struct bau_msg_status) *
598 DEST_Q_SIZE, GFP_KERNEL, node);
599 BUG_ON(!bau_tabp->msg_statuses);
600
601 for (i = 0, msp = bau_tabp->msg_statuses; i < DEST_Q_SIZE; i++, msp++)
602 bau_cpubits_clear(&msp->seen_by, (int)
603 uv_blade_nr_possible_cpus(blade));
604
605 bau_tabp->watching =
606 kmalloc_node(sizeof(int) * DEST_NUM_RESOURCES, GFP_KERNEL, node);
607 BUG_ON(!bau_tabp->watching);
608
609 for (i = 0, ip = bau_tabp->watching; i < DEST_Q_SIZE; i++, ip++)
610 *ip = 0;
611
612 uv_bau_table_bases[blade] = bau_tabp;
613
614 return bau_tabp;
615}
616
617/*
618 * finish the initialization of the per-blade control structures
619 */
620static void __init
621uv_table_bases_finish(int blade, int node, int cur_cpu,
622 struct bau_control *bau_tablesp,
623 struct bau_desc *adp)
624{
625 struct bau_control *bcp;
626 int i;
627
628 for (i = cur_cpu; i < cur_cpu + uv_blade_nr_possible_cpus(blade); i++) {
629 bcp = (struct bau_control *)&per_cpu(bau_control, i);
630
631 bcp->bau_msg_head = bau_tablesp->va_queue_first;
632 bcp->va_queue_first = bau_tablesp->va_queue_first;
633 bcp->va_queue_last = bau_tablesp->va_queue_last;
634 bcp->watching = bau_tablesp->watching;
635 bcp->msg_statuses = bau_tablesp->msg_statuses;
636 bcp->descriptor_base = adp;
637 }
638}
639
640/*
641 * initialize the sending side's sending buffers
642 */
643static struct bau_desc * __init
644uv_activation_descriptor_init(int node, int pnode)
645{
646 int i;
647 unsigned long pa;
648 unsigned long m;
649 unsigned long n;
650 unsigned long mmr_image;
651 struct bau_desc *adp;
652 struct bau_desc *ad2;
653
654 adp = (struct bau_desc *)
655 kmalloc_node(16384, GFP_KERNEL, node);
656 BUG_ON(!adp);
657
658 pa = __pa((unsigned long)adp);
659 n = pa >> uv_nshift;
660 m = pa & uv_mmask;
661
662 mmr_image = uv_read_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE);
663 if (mmr_image) {
664 uv_write_global_mmr64(pnode, (unsigned long)
665 UVH_LB_BAU_SB_DESCRIPTOR_BASE,
666 (n << UV_DESC_BASE_PNODE_SHIFT | m));
667 }
668
669 for (i = 0, ad2 = adp; i < UV_ACTIVATION_DESCRIPTOR_SIZE; i++, ad2++) {
670 memset(ad2, 0, sizeof(struct bau_desc));
671 ad2->header.sw_ack_flag = 1;
672 ad2->header.base_dest_nodeid =
673 uv_blade_to_pnode(uv_cpu_to_blade_id(0));
674 ad2->header.command = UV_NET_ENDPOINT_INTD;
675 ad2->header.int_both = 1;
676 /*
677 * all others need to be set to zero:
678 * fairness chaining multilevel count replied_to
679 */
680 }
681 return adp;
682}
683
684/*
685 * initialize the destination side's receiving buffers
686 */
687static struct bau_payload_queue_entry * __init
688uv_payload_queue_init(int node, int pnode, struct bau_control *bau_tablesp)
689{
690 struct bau_payload_queue_entry *pqp;
691 char *cp;
692
693 pqp = (struct bau_payload_queue_entry *) kmalloc_node(
694 (DEST_Q_SIZE + 1) * sizeof(struct bau_payload_queue_entry),
695 GFP_KERNEL, node);
696 BUG_ON(!pqp);
697
698 cp = (char *)pqp + 31;
699 pqp = (struct bau_payload_queue_entry *)(((unsigned long)cp >> 5) << 5);
700 bau_tablesp->va_queue_first = pqp;
701 uv_write_global_mmr64(pnode,
702 UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST,
703 ((unsigned long)pnode <<
704 UV_PAYLOADQ_PNODE_SHIFT) |
705 uv_physnodeaddr(pqp));
706 uv_write_global_mmr64(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL,
707 uv_physnodeaddr(pqp));
708 bau_tablesp->va_queue_last = pqp + (DEST_Q_SIZE - 1);
709 uv_write_global_mmr64(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST,
710 (unsigned long)
711 uv_physnodeaddr(bau_tablesp->va_queue_last));
712 memset(pqp, 0, sizeof(struct bau_payload_queue_entry) * DEST_Q_SIZE);
713
714 return pqp;
715}
716
717/*
718 * Initialization of each UV blade's structures
719 */
720static int __init uv_init_blade(int blade, int node, int cur_cpu)
721{
722 int pnode;
723 unsigned long pa;
724 unsigned long apicid;
725 struct bau_desc *adp;
726 struct bau_payload_queue_entry *pqp;
727 struct bau_control *bau_tablesp;
728
729 bau_tablesp = uv_table_bases_init(blade, node);
730 pnode = uv_blade_to_pnode(blade);
731 adp = uv_activation_descriptor_init(node, pnode);
732 pqp = uv_payload_queue_init(node, pnode, bau_tablesp);
733 uv_table_bases_finish(blade, node, cur_cpu, bau_tablesp, adp);
734 /*
735 * the below initialization can't be in firmware because the
736 * messaging IRQ will be determined by the OS
737 */
738 apicid = per_cpu(x86_cpu_to_apicid, cur_cpu);
739 pa = uv_read_global_mmr64(pnode, UVH_BAU_DATA_CONFIG);
740 if ((pa & 0xff) != UV_BAU_MESSAGE) {
741 uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG,
742 ((apicid << 32) | UV_BAU_MESSAGE));
743 }
744 return 0;
745}
746
747/*
748 * Initialization of BAU-related structures
749 */
750static int __init uv_bau_init(void)
751{
752 int blade;
753 int node;
754 int nblades;
755 int last_blade;
756 int cur_cpu = 0;
757
758 if (!is_uv_system())
759 return 0;
760
761 uv_bau_retry_limit = 1;
762 uv_nshift = uv_hub_info->n_val;
763 uv_mmask = (1UL << uv_hub_info->n_val) - 1;
764 nblades = 0;
765 last_blade = -1;
766 for_each_online_node(node) {
767 blade = uv_node_to_blade_id(node);
768 if (blade == last_blade)
769 continue;
770 last_blade = blade;
771 nblades++;
772 }
773 uv_bau_table_bases = (struct bau_control **)
774 kmalloc(nblades * sizeof(struct bau_control *), GFP_KERNEL);
775 BUG_ON(!uv_bau_table_bases);
776
777 last_blade = -1;
778 for_each_online_node(node) {
779 blade = uv_node_to_blade_id(node);
780 if (blade == last_blade)
781 continue;
782 last_blade = blade;
783 uv_init_blade(blade, node, cur_cpu);
784 cur_cpu += uv_blade_nr_possible_cpus(blade);
785 }
786 set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1);
787 uv_enable_timeouts();
788
789 return 0;
790}
791__initcall(uv_bau_init);
792__initcall(uv_ptc_init);
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index abbf199adebb..1106fac6024d 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -2,7 +2,7 @@
2 2
3#include <asm/trampoline.h> 3#include <asm/trampoline.h>
4 4
5/* ready for x86_64, no harm for x86, since it will overwrite after alloc */ 5/* ready for x86_64 and x86 */
6unsigned char *trampoline_base = __va(TRAMPOLINE_BASE); 6unsigned char *trampoline_base = __va(TRAMPOLINE_BASE);
7 7
8/* 8/*
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index bde6f63e15d5..8a768973c4f0 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -1,5 +1,6 @@
1/* 1/*
2 * Copyright (C) 1991, 1992 Linus Torvalds 2 * Copyright (C) 1991, 1992 Linus Torvalds
3 * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
3 * 4 *
4 * Pentium III FXSR, SSE support 5 * Pentium III FXSR, SSE support
5 * Gareth Hughes <gareth@valinux.com>, May 2000 6 * Gareth Hughes <gareth@valinux.com>, May 2000
@@ -60,8 +61,6 @@
60 61
61#include "mach_traps.h" 62#include "mach_traps.h"
62 63
63int panic_on_unrecovered_nmi;
64
65DECLARE_BITMAP(used_vectors, NR_VECTORS); 64DECLARE_BITMAP(used_vectors, NR_VECTORS);
66EXPORT_SYMBOL_GPL(used_vectors); 65EXPORT_SYMBOL_GPL(used_vectors);
67 66
@@ -98,19 +97,22 @@ asmlinkage void alignment_check(void);
98asmlinkage void spurious_interrupt_bug(void); 97asmlinkage void spurious_interrupt_bug(void);
99asmlinkage void machine_check(void); 98asmlinkage void machine_check(void);
100 99
100int panic_on_unrecovered_nmi;
101int kstack_depth_to_print = 24; 101int kstack_depth_to_print = 24;
102static unsigned int code_bytes = 64; 102static unsigned int code_bytes = 64;
103static int ignore_nmis;
104static int die_counter;
103 105
104void printk_address(unsigned long address, int reliable) 106void printk_address(unsigned long address, int reliable)
105{ 107{
106#ifdef CONFIG_KALLSYMS 108#ifdef CONFIG_KALLSYMS
107 char namebuf[KSYM_NAME_LEN];
108 unsigned long offset = 0; 109 unsigned long offset = 0;
109 unsigned long symsize; 110 unsigned long symsize;
110 const char *symname; 111 const char *symname;
111 char reliab[4] = "";
112 char *delim = ":";
113 char *modname; 112 char *modname;
113 char *delim = ":";
114 char namebuf[KSYM_NAME_LEN];
115 char reliab[4] = "";
114 116
115 symname = kallsyms_lookup(address, &symsize, &offset, 117 symname = kallsyms_lookup(address, &symsize, &offset,
116 &modname, namebuf); 118 &modname, namebuf);
@@ -130,22 +132,23 @@ void printk_address(unsigned long address, int reliable)
130#endif 132#endif
131} 133}
132 134
133static inline int valid_stack_ptr(struct thread_info *tinfo, void *p, unsigned size) 135static inline int valid_stack_ptr(struct thread_info *tinfo,
136 void *p, unsigned int size)
134{ 137{
135 return p > (void *)tinfo && 138 void *t = tinfo;
136 p <= (void *)tinfo + THREAD_SIZE - size; 139 return p > t && p <= t + THREAD_SIZE - size;
137} 140}
138 141
139/* The form of the top of the frame on the stack */ 142/* The form of the top of the frame on the stack */
140struct stack_frame { 143struct stack_frame {
141 struct stack_frame *next_frame; 144 struct stack_frame *next_frame;
142 unsigned long return_address; 145 unsigned long return_address;
143}; 146};
144 147
145static inline unsigned long 148static inline unsigned long
146print_context_stack(struct thread_info *tinfo, 149print_context_stack(struct thread_info *tinfo,
147 unsigned long *stack, unsigned long bp, 150 unsigned long *stack, unsigned long bp,
148 const struct stacktrace_ops *ops, void *data) 151 const struct stacktrace_ops *ops, void *data)
149{ 152{
150 struct stack_frame *frame = (struct stack_frame *)bp; 153 struct stack_frame *frame = (struct stack_frame *)bp;
151 154
@@ -167,8 +170,6 @@ print_context_stack(struct thread_info *tinfo,
167 return bp; 170 return bp;
168} 171}
169 172
170#define MSG(msg) ops->warning(data, msg)
171
172void dump_trace(struct task_struct *task, struct pt_regs *regs, 173void dump_trace(struct task_struct *task, struct pt_regs *regs,
173 unsigned long *stack, unsigned long bp, 174 unsigned long *stack, unsigned long bp,
174 const struct stacktrace_ops *ops, void *data) 175 const struct stacktrace_ops *ops, void *data)
@@ -178,7 +179,6 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
178 179
179 if (!stack) { 180 if (!stack) {
180 unsigned long dummy; 181 unsigned long dummy;
181
182 stack = &dummy; 182 stack = &dummy;
183 if (task != current) 183 if (task != current)
184 stack = (unsigned long *)task->thread.sp; 184 stack = (unsigned long *)task->thread.sp;
@@ -196,7 +196,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
196 } 196 }
197#endif 197#endif
198 198
199 while (1) { 199 for (;;) {
200 struct thread_info *context; 200 struct thread_info *context;
201 201
202 context = (struct thread_info *) 202 context = (struct thread_info *)
@@ -248,10 +248,10 @@ static void print_trace_address(void *data, unsigned long addr, int reliable)
248} 248}
249 249
250static const struct stacktrace_ops print_trace_ops = { 250static const struct stacktrace_ops print_trace_ops = {
251 .warning = print_trace_warning, 251 .warning = print_trace_warning,
252 .warning_symbol = print_trace_warning_symbol, 252 .warning_symbol = print_trace_warning_symbol,
253 .stack = print_trace_stack, 253 .stack = print_trace_stack,
254 .address = print_trace_address, 254 .address = print_trace_address,
255}; 255};
256 256
257static void 257static void
@@ -351,15 +351,14 @@ void show_registers(struct pt_regs *regs)
351 printk(KERN_EMERG "Code: "); 351 printk(KERN_EMERG "Code: ");
352 352
353 ip = (u8 *)regs->ip - code_prologue; 353 ip = (u8 *)regs->ip - code_prologue;
354 if (ip < (u8 *)PAGE_OFFSET || 354 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
355 probe_kernel_address(ip, c)) {
356 /* try starting at EIP */ 355 /* try starting at EIP */
357 ip = (u8 *)regs->ip; 356 ip = (u8 *)regs->ip;
358 code_len = code_len - code_prologue + 1; 357 code_len = code_len - code_prologue + 1;
359 } 358 }
360 for (i = 0; i < code_len; i++, ip++) { 359 for (i = 0; i < code_len; i++, ip++) {
361 if (ip < (u8 *)PAGE_OFFSET || 360 if (ip < (u8 *)PAGE_OFFSET ||
362 probe_kernel_address(ip, c)) { 361 probe_kernel_address(ip, c)) {
363 printk(" Bad EIP value."); 362 printk(" Bad EIP value.");
364 break; 363 break;
365 } 364 }
@@ -384,8 +383,6 @@ int is_valid_bugaddr(unsigned long ip)
384 return ud2 == 0x0b0f; 383 return ud2 == 0x0b0f;
385} 384}
386 385
387static int die_counter;
388
389int __kprobes __die(const char *str, struct pt_regs *regs, long err) 386int __kprobes __die(const char *str, struct pt_regs *regs, long err)
390{ 387{
391 unsigned short ss; 388 unsigned short ss;
@@ -402,26 +399,22 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
402 printk("DEBUG_PAGEALLOC"); 399 printk("DEBUG_PAGEALLOC");
403#endif 400#endif
404 printk("\n"); 401 printk("\n");
405
406 if (notify_die(DIE_OOPS, str, regs, err, 402 if (notify_die(DIE_OOPS, str, regs, err,
407 current->thread.trap_no, SIGSEGV) != NOTIFY_STOP) { 403 current->thread.trap_no, SIGSEGV) == NOTIFY_STOP)
408 404 return 1;
409 show_registers(regs);
410 /* Executive summary in case the oops scrolled away */
411 sp = (unsigned long) (&regs->sp);
412 savesegment(ss, ss);
413 if (user_mode(regs)) {
414 sp = regs->sp;
415 ss = regs->ss & 0xffff;
416 }
417 printk(KERN_EMERG "EIP: [<%08lx>] ", regs->ip);
418 print_symbol("%s", regs->ip);
419 printk(" SS:ESP %04x:%08lx\n", ss, sp);
420 405
421 return 0; 406 show_registers(regs);
407 /* Executive summary in case the oops scrolled away */
408 sp = (unsigned long) (&regs->sp);
409 savesegment(ss, ss);
410 if (user_mode(regs)) {
411 sp = regs->sp;
412 ss = regs->ss & 0xffff;
422 } 413 }
423 414 printk(KERN_EMERG "EIP: [<%08lx>] ", regs->ip);
424 return 1; 415 print_symbol("%s", regs->ip);
416 printk(" SS:ESP %04x:%08lx\n", ss, sp);
417 return 0;
425} 418}
426 419
427/* 420/*
@@ -544,8 +537,9 @@ vm86_trap:
544#define DO_ERROR(trapnr, signr, str, name) \ 537#define DO_ERROR(trapnr, signr, str, name) \
545void do_##name(struct pt_regs *regs, long error_code) \ 538void do_##name(struct pt_regs *regs, long error_code) \
546{ \ 539{ \
540 trace_hardirqs_fixup(); \
547 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \ 541 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
548 == NOTIFY_STOP) \ 542 == NOTIFY_STOP) \
549 return; \ 543 return; \
550 do_trap(trapnr, signr, str, 0, regs, error_code, NULL); \ 544 do_trap(trapnr, signr, str, 0, regs, error_code, NULL); \
551} 545}
@@ -561,7 +555,7 @@ void do_##name(struct pt_regs *regs, long error_code) \
561 info.si_code = sicode; \ 555 info.si_code = sicode; \
562 info.si_addr = (void __user *)siaddr; \ 556 info.si_addr = (void __user *)siaddr; \
563 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \ 557 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
564 == NOTIFY_STOP) \ 558 == NOTIFY_STOP) \
565 return; \ 559 return; \
566 do_trap(trapnr, signr, str, 0, regs, error_code, &info); \ 560 do_trap(trapnr, signr, str, 0, regs, error_code, &info); \
567} 561}
@@ -570,7 +564,7 @@ void do_##name(struct pt_regs *regs, long error_code) \
570void do_##name(struct pt_regs *regs, long error_code) \ 564void do_##name(struct pt_regs *regs, long error_code) \
571{ \ 565{ \
572 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \ 566 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
573 == NOTIFY_STOP) \ 567 == NOTIFY_STOP) \
574 return; \ 568 return; \
575 do_trap(trapnr, signr, str, 1, regs, error_code, NULL); \ 569 do_trap(trapnr, signr, str, 1, regs, error_code, NULL); \
576} 570}
@@ -585,27 +579,29 @@ void do_##name(struct pt_regs *regs, long error_code) \
585 info.si_addr = (void __user *)siaddr; \ 579 info.si_addr = (void __user *)siaddr; \
586 trace_hardirqs_fixup(); \ 580 trace_hardirqs_fixup(); \
587 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \ 581 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
588 == NOTIFY_STOP) \ 582 == NOTIFY_STOP) \
589 return; \ 583 return; \
590 do_trap(trapnr, signr, str, 1, regs, error_code, &info); \ 584 do_trap(trapnr, signr, str, 1, regs, error_code, &info); \
591} 585}
592 586
593DO_VM86_ERROR_INFO(0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip) 587DO_VM86_ERROR_INFO(0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip)
594#ifndef CONFIG_KPROBES 588#ifndef CONFIG_KPROBES
595DO_VM86_ERROR(3, SIGTRAP, "int3", int3) 589DO_VM86_ERROR(3, SIGTRAP, "int3", int3)
596#endif 590#endif
597DO_VM86_ERROR(4, SIGSEGV, "overflow", overflow) 591DO_VM86_ERROR(4, SIGSEGV, "overflow", overflow)
598DO_VM86_ERROR(5, SIGSEGV, "bounds", bounds) 592DO_VM86_ERROR(5, SIGSEGV, "bounds", bounds)
599DO_ERROR_INFO(6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip, 0) 593DO_ERROR_INFO(6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip, 0)
600DO_ERROR(9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun) 594DO_ERROR(9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun)
601DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS) 595DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
602DO_ERROR(11, SIGBUS, "segment not present", segment_not_present) 596DO_ERROR(11, SIGBUS, "segment not present", segment_not_present)
603DO_ERROR(12, SIGBUS, "stack segment", stack_segment) 597DO_ERROR(12, SIGBUS, "stack segment", stack_segment)
604DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0, 0) 598DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0, 0)
605DO_ERROR_INFO(32, SIGILL, "iret exception", iret_error, ILL_BADSTK, 0, 1) 599DO_ERROR_INFO(32, SIGILL, "iret exception", iret_error, ILL_BADSTK, 0, 1)
606 600
607void __kprobes do_general_protection(struct pt_regs *regs, long error_code) 601void __kprobes
602do_general_protection(struct pt_regs *regs, long error_code)
608{ 603{
604 struct task_struct *tsk;
609 struct thread_struct *thread; 605 struct thread_struct *thread;
610 struct tss_struct *tss; 606 struct tss_struct *tss;
611 int cpu; 607 int cpu;
@@ -646,23 +642,24 @@ void __kprobes do_general_protection(struct pt_regs *regs, long error_code)
646 if (regs->flags & X86_VM_MASK) 642 if (regs->flags & X86_VM_MASK)
647 goto gp_in_vm86; 643 goto gp_in_vm86;
648 644
645 tsk = current;
649 if (!user_mode(regs)) 646 if (!user_mode(regs))
650 goto gp_in_kernel; 647 goto gp_in_kernel;
651 648
652 current->thread.error_code = error_code; 649 tsk->thread.error_code = error_code;
653 current->thread.trap_no = 13; 650 tsk->thread.trap_no = 13;
654 651
655 if (show_unhandled_signals && unhandled_signal(current, SIGSEGV) && 652 if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
656 printk_ratelimit()) { 653 printk_ratelimit()) {
657 printk(KERN_INFO 654 printk(KERN_INFO
658 "%s[%d] general protection ip:%lx sp:%lx error:%lx", 655 "%s[%d] general protection ip:%lx sp:%lx error:%lx",
659 current->comm, task_pid_nr(current), 656 tsk->comm, task_pid_nr(tsk),
660 regs->ip, regs->sp, error_code); 657 regs->ip, regs->sp, error_code);
661 print_vma_addr(" in ", regs->ip); 658 print_vma_addr(" in ", regs->ip);
662 printk("\n"); 659 printk("\n");
663 } 660 }
664 661
665 force_sig(SIGSEGV, current); 662 force_sig(SIGSEGV, tsk);
666 return; 663 return;
667 664
668gp_in_vm86: 665gp_in_vm86:
@@ -671,14 +668,15 @@ gp_in_vm86:
671 return; 668 return;
672 669
673gp_in_kernel: 670gp_in_kernel:
674 if (!fixup_exception(regs)) { 671 if (fixup_exception(regs))
675 current->thread.error_code = error_code; 672 return;
676 current->thread.trap_no = 13; 673
677 if (notify_die(DIE_GPF, "general protection fault", regs, 674 tsk->thread.error_code = error_code;
675 tsk->thread.trap_no = 13;
676 if (notify_die(DIE_GPF, "general protection fault", regs,
678 error_code, 13, SIGSEGV) == NOTIFY_STOP) 677 error_code, 13, SIGSEGV) == NOTIFY_STOP)
679 return; 678 return;
680 die("general protection fault", regs, error_code); 679 die("general protection fault", regs, error_code);
681 }
682} 680}
683 681
684static notrace __kprobes void 682static notrace __kprobes void
@@ -755,9 +753,9 @@ unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
755 753
756static DEFINE_SPINLOCK(nmi_print_lock); 754static DEFINE_SPINLOCK(nmi_print_lock);
757 755
758void notrace __kprobes die_nmi(struct pt_regs *regs, const char *msg) 756void notrace __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic)
759{ 757{
760 if (notify_die(DIE_NMIWATCHDOG, msg, regs, 0, 2, SIGINT) == NOTIFY_STOP) 758 if (notify_die(DIE_NMIWATCHDOG, str, regs, 0, 2, SIGINT) == NOTIFY_STOP)
761 return; 759 return;
762 760
763 spin_lock(&nmi_print_lock); 761 spin_lock(&nmi_print_lock);
@@ -766,10 +764,12 @@ void notrace __kprobes die_nmi(struct pt_regs *regs, const char *msg)
766 * to get a message out: 764 * to get a message out:
767 */ 765 */
768 bust_spinlocks(1); 766 bust_spinlocks(1);
769 printk(KERN_EMERG "%s", msg); 767 printk(KERN_EMERG "%s", str);
770 printk(" on CPU%d, ip %08lx, registers:\n", 768 printk(" on CPU%d, ip %08lx, registers:\n",
771 smp_processor_id(), regs->ip); 769 smp_processor_id(), regs->ip);
772 show_registers(regs); 770 show_registers(regs);
771 if (do_panic)
772 panic("Non maskable interrupt");
773 console_silent(); 773 console_silent();
774 spin_unlock(&nmi_print_lock); 774 spin_unlock(&nmi_print_lock);
775 bust_spinlocks(0); 775 bust_spinlocks(0);
@@ -789,14 +789,17 @@ void notrace __kprobes die_nmi(struct pt_regs *regs, const char *msg)
789static notrace __kprobes void default_do_nmi(struct pt_regs *regs) 789static notrace __kprobes void default_do_nmi(struct pt_regs *regs)
790{ 790{
791 unsigned char reason = 0; 791 unsigned char reason = 0;
792 int cpu;
793
794 cpu = smp_processor_id();
792 795
793 /* Only the BSP gets external NMIs from the system: */ 796 /* Only the BSP gets external NMIs from the system. */
794 if (!smp_processor_id()) 797 if (!cpu)
795 reason = get_nmi_reason(); 798 reason = get_nmi_reason();
796 799
797 if (!(reason & 0xc0)) { 800 if (!(reason & 0xc0)) {
798 if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 2, SIGINT) 801 if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 2, SIGINT)
799 == NOTIFY_STOP) 802 == NOTIFY_STOP)
800 return; 803 return;
801#ifdef CONFIG_X86_LOCAL_APIC 804#ifdef CONFIG_X86_LOCAL_APIC
802 /* 805 /*
@@ -805,7 +808,7 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs)
805 */ 808 */
806 if (nmi_watchdog_tick(regs, reason)) 809 if (nmi_watchdog_tick(regs, reason))
807 return; 810 return;
808 if (!do_nmi_callback(regs, smp_processor_id())) 811 if (!do_nmi_callback(regs, cpu))
809 unknown_nmi_error(reason, regs); 812 unknown_nmi_error(reason, regs);
810#else 813#else
811 unknown_nmi_error(reason, regs); 814 unknown_nmi_error(reason, regs);
@@ -815,6 +818,8 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs)
815 } 818 }
816 if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) 819 if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP)
817 return; 820 return;
821
822 /* AK: following checks seem to be broken on modern chipsets. FIXME */
818 if (reason & 0x80) 823 if (reason & 0x80)
819 mem_parity_error(reason, regs); 824 mem_parity_error(reason, regs);
820 if (reason & 0x40) 825 if (reason & 0x40)
@@ -826,8 +831,6 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs)
826 reassert_nmi(); 831 reassert_nmi();
827} 832}
828 833
829static int ignore_nmis;
830
831notrace __kprobes void do_nmi(struct pt_regs *regs, long error_code) 834notrace __kprobes void do_nmi(struct pt_regs *regs, long error_code)
832{ 835{
833 int cpu; 836 int cpu;
@@ -912,7 +915,7 @@ void __kprobes do_debug(struct pt_regs *regs, long error_code)
912 tsk->thread.debugctlmsr = 0; 915 tsk->thread.debugctlmsr = 0;
913 916
914 if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code, 917 if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code,
915 SIGTRAP) == NOTIFY_STOP) 918 SIGTRAP) == NOTIFY_STOP)
916 return; 919 return;
917 /* It's safe to allow irq's after DR6 has been saved */ 920 /* It's safe to allow irq's after DR6 has been saved */
918 if (regs->flags & X86_EFLAGS_IF) 921 if (regs->flags & X86_EFLAGS_IF)
@@ -973,9 +976,8 @@ clear_TF_reenable:
973void math_error(void __user *ip) 976void math_error(void __user *ip)
974{ 977{
975 struct task_struct *task; 978 struct task_struct *task;
976 unsigned short cwd;
977 unsigned short swd;
978 siginfo_t info; 979 siginfo_t info;
980 unsigned short cwd, swd;
979 981
980 /* 982 /*
981 * Save the info for the exception handler and clear the error. 983 * Save the info for the exception handler and clear the error.
@@ -994,7 +996,7 @@ void math_error(void __user *ip)
994 * C1 reg you need in case of a stack fault, 0x040 is the stack 996 * C1 reg you need in case of a stack fault, 0x040 is the stack
995 * fault bit. We should only be taking one exception at a time, 997 * fault bit. We should only be taking one exception at a time,
996 * so if this combination doesn't produce any single exception, 998 * so if this combination doesn't produce any single exception,
997 * then we have a bad program that isn't syncronizing its FPU usage 999 * then we have a bad program that isn't synchronizing its FPU usage
998 * and it will suffer the consequences since we won't be able to 1000 * and it will suffer the consequences since we won't be able to
999 * fully reproduce the context of the exception 1001 * fully reproduce the context of the exception
1000 */ 1002 */
@@ -1003,7 +1005,7 @@ void math_error(void __user *ip)
1003 switch (swd & ~cwd & 0x3f) { 1005 switch (swd & ~cwd & 0x3f) {
1004 case 0x000: /* No unmasked exception */ 1006 case 0x000: /* No unmasked exception */
1005 return; 1007 return;
1006 default: /* Multiple exceptions */ 1008 default: /* Multiple exceptions */
1007 break; 1009 break;
1008 case 0x001: /* Invalid Op */ 1010 case 0x001: /* Invalid Op */
1009 /* 1011 /*
@@ -1039,8 +1041,8 @@ void do_coprocessor_error(struct pt_regs *regs, long error_code)
1039static void simd_math_error(void __user *ip) 1041static void simd_math_error(void __user *ip)
1040{ 1042{
1041 struct task_struct *task; 1043 struct task_struct *task;
1042 unsigned short mxcsr;
1043 siginfo_t info; 1044 siginfo_t info;
1045 unsigned short mxcsr;
1044 1046
1045 /* 1047 /*
1046 * Save the info for the exception handler and clear the error. 1048 * Save the info for the exception handler and clear the error.
@@ -1116,7 +1118,7 @@ void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code)
1116 1118
1117unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp) 1119unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp)
1118{ 1120{
1119 struct desc_struct *gdt = __get_cpu_var(gdt_page).gdt; 1121 struct desc_struct *gdt = get_cpu_gdt_table(smp_processor_id());
1120 unsigned long base = (kesp - uesp) & -THREAD_SIZE; 1122 unsigned long base = (kesp - uesp) & -THREAD_SIZE;
1121 unsigned long new_kesp = kesp - base; 1123 unsigned long new_kesp = kesp - base;
1122 unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT; 1124 unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT;
@@ -1195,19 +1197,16 @@ void __init trap_init(void)
1195 early_iounmap(p, 4); 1197 early_iounmap(p, 4);
1196#endif 1198#endif
1197 1199
1198#ifdef CONFIG_X86_LOCAL_APIC 1200 set_trap_gate(0, &divide_error);
1199 init_apic_mappings(); 1201 set_intr_gate(1, &debug);
1200#endif 1202 set_intr_gate(2, &nmi);
1201 set_trap_gate(0, &divide_error); 1203 set_system_intr_gate(3, &int3); /* int3 can be called from all */
1202 set_intr_gate(1, &debug); 1204 set_system_gate(4, &overflow); /* int4 can be called from all */
1203 set_intr_gate(2, &nmi); 1205 set_trap_gate(5, &bounds);
1204 set_system_intr_gate(3, &int3); /* int3/4 can be called from all */ 1206 set_trap_gate(6, &invalid_op);
1205 set_system_gate(4, &overflow); 1207 set_trap_gate(7, &device_not_available);
1206 set_trap_gate(5, &bounds); 1208 set_task_gate(8, GDT_ENTRY_DOUBLEFAULT_TSS);
1207 set_trap_gate(6, &invalid_op); 1209 set_trap_gate(9, &coprocessor_segment_overrun);
1208 set_trap_gate(7, &device_not_available);
1209 set_task_gate(8, GDT_ENTRY_DOUBLEFAULT_TSS);
1210 set_trap_gate(9, &coprocessor_segment_overrun);
1211 set_trap_gate(10, &invalid_TSS); 1210 set_trap_gate(10, &invalid_TSS);
1212 set_trap_gate(11, &segment_not_present); 1211 set_trap_gate(11, &segment_not_present);
1213 set_trap_gate(12, &stack_segment); 1212 set_trap_gate(12, &stack_segment);
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index adff76ea97c4..2696a6837782 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -10,49 +10,49 @@
10 * 'Traps.c' handles hardware traps and faults after we have saved some 10 * 'Traps.c' handles hardware traps and faults after we have saved some
11 * state in 'entry.S'. 11 * state in 'entry.S'.
12 */ 12 */
13#include <linux/sched.h> 13#include <linux/moduleparam.h>
14#include <linux/interrupt.h>
15#include <linux/kallsyms.h>
16#include <linux/spinlock.h>
17#include <linux/kprobes.h>
18#include <linux/uaccess.h>
19#include <linux/utsname.h>
20#include <linux/kdebug.h>
14#include <linux/kernel.h> 21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/ptrace.h>
15#include <linux/string.h> 24#include <linux/string.h>
25#include <linux/unwind.h>
26#include <linux/delay.h>
16#include <linux/errno.h> 27#include <linux/errno.h>
17#include <linux/ptrace.h> 28#include <linux/kexec.h>
29#include <linux/sched.h>
18#include <linux/timer.h> 30#include <linux/timer.h>
19#include <linux/mm.h>
20#include <linux/init.h> 31#include <linux/init.h>
21#include <linux/delay.h>
22#include <linux/spinlock.h>
23#include <linux/interrupt.h>
24#include <linux/kallsyms.h>
25#include <linux/module.h>
26#include <linux/moduleparam.h>
27#include <linux/nmi.h>
28#include <linux/kprobes.h>
29#include <linux/kexec.h>
30#include <linux/unwind.h>
31#include <linux/uaccess.h>
32#include <linux/bug.h> 32#include <linux/bug.h>
33#include <linux/kdebug.h> 33#include <linux/nmi.h>
34#include <linux/utsname.h> 34#include <linux/mm.h>
35
36#include <mach_traps.h>
37 35
38#if defined(CONFIG_EDAC) 36#if defined(CONFIG_EDAC)
39#include <linux/edac.h> 37#include <linux/edac.h>
40#endif 38#endif
41 39
42#include <asm/system.h> 40#include <asm/stacktrace.h>
43#include <asm/io.h> 41#include <asm/processor.h>
44#include <asm/atomic.h>
45#include <asm/debugreg.h> 42#include <asm/debugreg.h>
43#include <asm/atomic.h>
44#include <asm/system.h>
45#include <asm/unwind.h>
46#include <asm/desc.h> 46#include <asm/desc.h>
47#include <asm/i387.h> 47#include <asm/i387.h>
48#include <asm/processor.h> 48#include <asm/nmi.h>
49#include <asm/unwind.h>
50#include <asm/smp.h> 49#include <asm/smp.h>
50#include <asm/io.h>
51#include <asm/pgalloc.h> 51#include <asm/pgalloc.h>
52#include <asm/pda.h>
53#include <asm/proto.h> 52#include <asm/proto.h>
54#include <asm/nmi.h> 53#include <asm/pda.h>
55#include <asm/stacktrace.h> 54
55#include <mach_traps.h>
56 56
57asmlinkage void divide_error(void); 57asmlinkage void divide_error(void);
58asmlinkage void debug(void); 58asmlinkage void debug(void);
@@ -71,12 +71,15 @@ asmlinkage void general_protection(void);
71asmlinkage void page_fault(void); 71asmlinkage void page_fault(void);
72asmlinkage void coprocessor_error(void); 72asmlinkage void coprocessor_error(void);
73asmlinkage void simd_coprocessor_error(void); 73asmlinkage void simd_coprocessor_error(void);
74asmlinkage void reserved(void);
75asmlinkage void alignment_check(void); 74asmlinkage void alignment_check(void);
76asmlinkage void machine_check(void);
77asmlinkage void spurious_interrupt_bug(void); 75asmlinkage void spurious_interrupt_bug(void);
76asmlinkage void machine_check(void);
78 77
78int panic_on_unrecovered_nmi;
79int kstack_depth_to_print = 12;
79static unsigned int code_bytes = 64; 80static unsigned int code_bytes = 64;
81static int ignore_nmis;
82static int die_counter;
80 83
81static inline void conditional_sti(struct pt_regs *regs) 84static inline void conditional_sti(struct pt_regs *regs)
82{ 85{
@@ -100,34 +103,9 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
100 dec_preempt_count(); 103 dec_preempt_count();
101} 104}
102 105
103int kstack_depth_to_print = 12;
104
105void printk_address(unsigned long address, int reliable) 106void printk_address(unsigned long address, int reliable)
106{ 107{
107#ifdef CONFIG_KALLSYMS 108 printk(" [<%016lx>] %s%pS\n", address, reliable ? "": "? ", (void *) address);
108 unsigned long offset = 0, symsize;
109 const char *symname;
110 char *modname;
111 char *delim = ":";
112 char namebuf[KSYM_NAME_LEN];
113 char reliab[4] = "";
114
115 symname = kallsyms_lookup(address, &symsize, &offset,
116 &modname, namebuf);
117 if (!symname) {
118 printk(" [<%016lx>]\n", address);
119 return;
120 }
121 if (!reliable)
122 strcpy(reliab, "? ");
123
124 if (!modname)
125 modname = delim = "";
126 printk(" [<%016lx>] %s%s%s%s%s+0x%lx/0x%lx\n",
127 address, reliab, delim, modname, delim, symname, offset, symsize);
128#else
129 printk(" [<%016lx>]\n", address);
130#endif
131} 109}
132 110
133static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack, 111static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
@@ -204,8 +182,6 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
204 return NULL; 182 return NULL;
205} 183}
206 184
207#define MSG(txt) ops->warning(data, txt)
208
209/* 185/*
210 * x86-64 can have up to three kernel stacks: 186 * x86-64 can have up to three kernel stacks:
211 * process stack 187 * process stack
@@ -232,11 +208,11 @@ struct stack_frame {
232 unsigned long return_address; 208 unsigned long return_address;
233}; 209};
234 210
235 211static inline unsigned long
236static inline unsigned long print_context_stack(struct thread_info *tinfo, 212print_context_stack(struct thread_info *tinfo,
237 unsigned long *stack, unsigned long bp, 213 unsigned long *stack, unsigned long bp,
238 const struct stacktrace_ops *ops, void *data, 214 const struct stacktrace_ops *ops, void *data,
239 unsigned long *end) 215 unsigned long *end)
240{ 216{
241 struct stack_frame *frame = (struct stack_frame *)bp; 217 struct stack_frame *frame = (struct stack_frame *)bp;
242 218
@@ -258,7 +234,7 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
258 return bp; 234 return bp;
259} 235}
260 236
261void dump_trace(struct task_struct *tsk, struct pt_regs *regs, 237void dump_trace(struct task_struct *task, struct pt_regs *regs,
262 unsigned long *stack, unsigned long bp, 238 unsigned long *stack, unsigned long bp,
263 const struct stacktrace_ops *ops, void *data) 239 const struct stacktrace_ops *ops, void *data)
264{ 240{
@@ -267,36 +243,34 @@ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
267 unsigned used = 0; 243 unsigned used = 0;
268 struct thread_info *tinfo; 244 struct thread_info *tinfo;
269 245
270 if (!tsk) 246 if (!task)
271 tsk = current; 247 task = current;
272 tinfo = task_thread_info(tsk);
273 248
274 if (!stack) { 249 if (!stack) {
275 unsigned long dummy; 250 unsigned long dummy;
276 stack = &dummy; 251 stack = &dummy;
277 if (tsk && tsk != current) 252 if (task && task != current)
278 stack = (unsigned long *)tsk->thread.sp; 253 stack = (unsigned long *)task->thread.sp;
279 } 254 }
280 255
281#ifdef CONFIG_FRAME_POINTER 256#ifdef CONFIG_FRAME_POINTER
282 if (!bp) { 257 if (!bp) {
283 if (tsk == current) { 258 if (task == current) {
284 /* Grab bp right from our regs */ 259 /* Grab bp right from our regs */
285 asm("movq %%rbp, %0" : "=r" (bp):); 260 asm("movq %%rbp, %0" : "=r" (bp) :);
286 } else { 261 } else {
287 /* bp is the last reg pushed by switch_to */ 262 /* bp is the last reg pushed by switch_to */
288 bp = *(unsigned long *) tsk->thread.sp; 263 bp = *(unsigned long *) task->thread.sp;
289 } 264 }
290 } 265 }
291#endif 266#endif
292 267
293
294
295 /* 268 /*
296 * Print function call entries in all stacks, starting at the 269 * Print function call entries in all stacks, starting at the
297 * current stack address. If the stacks consist of nested 270 * current stack address. If the stacks consist of nested
298 * exceptions 271 * exceptions
299 */ 272 */
273 tinfo = task_thread_info(task);
300 for (;;) { 274 for (;;) {
301 char *id; 275 char *id;
302 unsigned long *estack_end; 276 unsigned long *estack_end;
@@ -381,18 +355,17 @@ static const struct stacktrace_ops print_trace_ops = {
381 .address = print_trace_address, 355 .address = print_trace_address,
382}; 356};
383 357
384void 358void show_trace(struct task_struct *task, struct pt_regs *regs,
385show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack, 359 unsigned long *stack, unsigned long bp)
386 unsigned long bp)
387{ 360{
388 printk("\nCall Trace:\n"); 361 printk("\nCall Trace:\n");
389 dump_trace(tsk, regs, stack, bp, &print_trace_ops, NULL); 362 dump_trace(task, regs, stack, bp, &print_trace_ops, NULL);
390 printk("\n"); 363 printk("\n");
391} 364}
392 365
393static void 366static void
394_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp, 367_show_stack(struct task_struct *task, struct pt_regs *regs,
395 unsigned long bp) 368 unsigned long *sp, unsigned long bp)
396{ 369{
397 unsigned long *stack; 370 unsigned long *stack;
398 int i; 371 int i;
@@ -404,14 +377,14 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp,
404 // back trace for this cpu. 377 // back trace for this cpu.
405 378
406 if (sp == NULL) { 379 if (sp == NULL) {
407 if (tsk) 380 if (task)
408 sp = (unsigned long *)tsk->thread.sp; 381 sp = (unsigned long *)task->thread.sp;
409 else 382 else
410 sp = (unsigned long *)&sp; 383 sp = (unsigned long *)&sp;
411 } 384 }
412 385
413 stack = sp; 386 stack = sp;
414 for(i=0; i < kstack_depth_to_print; i++) { 387 for (i = 0; i < kstack_depth_to_print; i++) {
415 if (stack >= irqstack && stack <= irqstack_end) { 388 if (stack >= irqstack && stack <= irqstack_end) {
416 if (stack == irqstack_end) { 389 if (stack == irqstack_end) {
417 stack = (unsigned long *) (irqstack_end[-1]); 390 stack = (unsigned long *) (irqstack_end[-1]);
@@ -426,12 +399,12 @@ _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *sp,
426 printk(" %016lx", *stack++); 399 printk(" %016lx", *stack++);
427 touch_nmi_watchdog(); 400 touch_nmi_watchdog();
428 } 401 }
429 show_trace(tsk, regs, sp, bp); 402 show_trace(task, regs, sp, bp);
430} 403}
431 404
432void show_stack(struct task_struct *tsk, unsigned long * sp) 405void show_stack(struct task_struct *task, unsigned long *sp)
433{ 406{
434 _show_stack(tsk, NULL, sp, 0); 407 _show_stack(task, NULL, sp, 0);
435} 408}
436 409
437/* 410/*
@@ -439,8 +412,8 @@ void show_stack(struct task_struct *tsk, unsigned long * sp)
439 */ 412 */
440void dump_stack(void) 413void dump_stack(void)
441{ 414{
442 unsigned long dummy;
443 unsigned long bp = 0; 415 unsigned long bp = 0;
416 unsigned long stack;
444 417
445#ifdef CONFIG_FRAME_POINTER 418#ifdef CONFIG_FRAME_POINTER
446 if (!bp) 419 if (!bp)
@@ -452,7 +425,7 @@ void dump_stack(void)
452 init_utsname()->release, 425 init_utsname()->release,
453 (int)strcspn(init_utsname()->version, " "), 426 (int)strcspn(init_utsname()->version, " "),
454 init_utsname()->version); 427 init_utsname()->version);
455 show_trace(NULL, NULL, &dummy, bp); 428 show_trace(NULL, NULL, &stack, bp);
456} 429}
457 430
458EXPORT_SYMBOL(dump_stack); 431EXPORT_SYMBOL(dump_stack);
@@ -463,12 +436,8 @@ void show_registers(struct pt_regs *regs)
463 unsigned long sp; 436 unsigned long sp;
464 const int cpu = smp_processor_id(); 437 const int cpu = smp_processor_id();
465 struct task_struct *cur = cpu_pda(cpu)->pcurrent; 438 struct task_struct *cur = cpu_pda(cpu)->pcurrent;
466 u8 *ip;
467 unsigned int code_prologue = code_bytes * 43 / 64;
468 unsigned int code_len = code_bytes;
469 439
470 sp = regs->sp; 440 sp = regs->sp;
471 ip = (u8 *) regs->ip - code_prologue;
472 printk("CPU %d ", cpu); 441 printk("CPU %d ", cpu);
473 __show_regs(regs); 442 __show_regs(regs);
474 printk("Process %s (pid: %d, threadinfo %p, task %p)\n", 443 printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
@@ -479,15 +448,21 @@ void show_registers(struct pt_regs *regs)
479 * time of the fault.. 448 * time of the fault..
480 */ 449 */
481 if (!user_mode(regs)) { 450 if (!user_mode(regs)) {
451 unsigned int code_prologue = code_bytes * 43 / 64;
452 unsigned int code_len = code_bytes;
482 unsigned char c; 453 unsigned char c;
454 u8 *ip;
455
483 printk("Stack: "); 456 printk("Stack: ");
484 _show_stack(NULL, regs, (unsigned long *)sp, regs->bp); 457 _show_stack(NULL, regs, (unsigned long *)sp, regs->bp);
485 printk("\n"); 458 printk("\n");
486 459
487 printk(KERN_EMERG "Code: "); 460 printk(KERN_EMERG "Code: ");
461
462 ip = (u8 *)regs->ip - code_prologue;
488 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { 463 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
489 /* try starting at RIP */ 464 /* try starting at RIP */
490 ip = (u8 *) regs->ip; 465 ip = (u8 *)regs->ip;
491 code_len = code_len - code_prologue + 1; 466 code_len = code_len - code_prologue + 1;
492 } 467 }
493 for (i = 0; i < code_len; i++, ip++) { 468 for (i = 0; i < code_len; i++, ip++) {
@@ -503,7 +478,7 @@ void show_registers(struct pt_regs *regs)
503 } 478 }
504 } 479 }
505 printk("\n"); 480 printk("\n");
506} 481}
507 482
508int is_valid_bugaddr(unsigned long ip) 483int is_valid_bugaddr(unsigned long ip)
509{ 484{
@@ -561,10 +536,9 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
561 do_exit(signr); 536 do_exit(signr);
562} 537}
563 538
564int __kprobes __die(const char * str, struct pt_regs * regs, long err) 539int __kprobes __die(const char *str, struct pt_regs *regs, long err)
565{ 540{
566 static int die_counter; 541 printk(KERN_EMERG "%s: %04lx [%u] ", str, err & 0xffff, ++die_counter);
567 printk(KERN_EMERG "%s: %04lx [%u] ", str, err & 0xffff,++die_counter);
568#ifdef CONFIG_PREEMPT 542#ifdef CONFIG_PREEMPT
569 printk("PREEMPT "); 543 printk("PREEMPT ");
570#endif 544#endif
@@ -575,8 +549,10 @@ int __kprobes __die(const char * str, struct pt_regs * regs, long err)
575 printk("DEBUG_PAGEALLOC"); 549 printk("DEBUG_PAGEALLOC");
576#endif 550#endif
577 printk("\n"); 551 printk("\n");
578 if (notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV) == NOTIFY_STOP) 552 if (notify_die(DIE_OOPS, str, regs, err,
553 current->thread.trap_no, SIGSEGV) == NOTIFY_STOP)
579 return 1; 554 return 1;
555
580 show_registers(regs); 556 show_registers(regs);
581 add_taint(TAINT_DIE); 557 add_taint(TAINT_DIE);
582 /* Executive summary in case the oops scrolled away */ 558 /* Executive summary in case the oops scrolled away */
@@ -588,7 +564,7 @@ int __kprobes __die(const char * str, struct pt_regs * regs, long err)
588 return 0; 564 return 0;
589} 565}
590 566
591void die(const char * str, struct pt_regs * regs, long err) 567void die(const char *str, struct pt_regs *regs, long err)
592{ 568{
593 unsigned long flags = oops_begin(); 569 unsigned long flags = oops_begin();
594 570
@@ -605,8 +581,7 @@ die_nmi(char *str, struct pt_regs *regs, int do_panic)
605{ 581{
606 unsigned long flags; 582 unsigned long flags;
607 583
608 if (notify_die(DIE_NMIWATCHDOG, str, regs, 0, 2, SIGINT) == 584 if (notify_die(DIE_NMIWATCHDOG, str, regs, 0, 2, SIGINT) == NOTIFY_STOP)
609 NOTIFY_STOP)
610 return; 585 return;
611 586
612 flags = oops_begin(); 587 flags = oops_begin();
@@ -614,7 +589,9 @@ die_nmi(char *str, struct pt_regs *regs, int do_panic)
614 * We are in trouble anyway, lets at least try 589 * We are in trouble anyway, lets at least try
615 * to get a message out. 590 * to get a message out.
616 */ 591 */
617 printk(str, smp_processor_id()); 592 printk(KERN_EMERG "%s", str);
593 printk(" on CPU%d, ip %08lx, registers:\n",
594 smp_processor_id(), regs->ip);
618 show_registers(regs); 595 show_registers(regs);
619 if (kexec_should_crash(current)) 596 if (kexec_should_crash(current))
620 crash_kexec(regs); 597 crash_kexec(regs);
@@ -626,44 +603,44 @@ die_nmi(char *str, struct pt_regs *regs, int do_panic)
626 do_exit(SIGBUS); 603 do_exit(SIGBUS);
627} 604}
628 605
629static void __kprobes do_trap(int trapnr, int signr, char *str, 606static void __kprobes
630 struct pt_regs * regs, long error_code, 607do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
631 siginfo_t *info) 608 long error_code, siginfo_t *info)
632{ 609{
633 struct task_struct *tsk = current; 610 struct task_struct *tsk = current;
634 611
635 if (user_mode(regs)) { 612 if (!user_mode(regs))
636 /* 613 goto kernel_trap;
637 * We want error_code and trap_no set for userspace
638 * faults and kernelspace faults which result in
639 * die(), but not kernelspace faults which are fixed
640 * up. die() gives the process no chance to handle
641 * the signal and notice the kernel fault information,
642 * so that won't result in polluting the information
643 * about previously queued, but not yet delivered,
644 * faults. See also do_general_protection below.
645 */
646 tsk->thread.error_code = error_code;
647 tsk->thread.trap_no = trapnr;
648
649 if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
650 printk_ratelimit()) {
651 printk(KERN_INFO
652 "%s[%d] trap %s ip:%lx sp:%lx error:%lx",
653 tsk->comm, tsk->pid, str,
654 regs->ip, regs->sp, error_code);
655 print_vma_addr(" in ", regs->ip);
656 printk("\n");
657 }
658 614
659 if (info) 615 /*
660 force_sig_info(signr, info, tsk); 616 * We want error_code and trap_no set for userspace faults and
661 else 617 * kernelspace faults which result in die(), but not
662 force_sig(signr, tsk); 618 * kernelspace faults which are fixed up. die() gives the
663 return; 619 * process no chance to handle the signal and notice the
620 * kernel fault information, so that won't result in polluting
621 * the information about previously queued, but not yet
622 * delivered, faults. See also do_general_protection below.
623 */
624 tsk->thread.error_code = error_code;
625 tsk->thread.trap_no = trapnr;
626
627 if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
628 printk_ratelimit()) {
629 printk(KERN_INFO
630 "%s[%d] trap %s ip:%lx sp:%lx error:%lx",
631 tsk->comm, tsk->pid, str,
632 regs->ip, regs->sp, error_code);
633 print_vma_addr(" in ", regs->ip);
634 printk("\n");
664 } 635 }
665 636
637 if (info)
638 force_sig_info(signr, info, tsk);
639 else
640 force_sig(signr, tsk);
641 return;
666 642
643kernel_trap:
667 if (!fixup_exception(regs)) { 644 if (!fixup_exception(regs)) {
668 tsk->thread.error_code = error_code; 645 tsk->thread.error_code = error_code;
669 tsk->thread.trap_no = trapnr; 646 tsk->thread.trap_no = trapnr;
@@ -673,41 +650,39 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
673} 650}
674 651
675#define DO_ERROR(trapnr, signr, str, name) \ 652#define DO_ERROR(trapnr, signr, str, name) \
676asmlinkage void do_##name(struct pt_regs * regs, long error_code) \ 653asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
677{ \ 654{ \
678 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \ 655 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
679 == NOTIFY_STOP) \ 656 == NOTIFY_STOP) \
680 return; \ 657 return; \
681 conditional_sti(regs); \ 658 conditional_sti(regs); \
682 do_trap(trapnr, signr, str, regs, error_code, NULL); \ 659 do_trap(trapnr, signr, str, regs, error_code, NULL); \
683} 660}
684 661
685#define DO_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr) \ 662#define DO_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr) \
686asmlinkage void do_##name(struct pt_regs * regs, long error_code) \ 663asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
687{ \ 664{ \
688 siginfo_t info; \ 665 siginfo_t info; \
689 info.si_signo = signr; \ 666 info.si_signo = signr; \
690 info.si_errno = 0; \ 667 info.si_errno = 0; \
691 info.si_code = sicode; \ 668 info.si_code = sicode; \
692 info.si_addr = (void __user *)siaddr; \ 669 info.si_addr = (void __user *)siaddr; \
693 trace_hardirqs_fixup(); \ 670 trace_hardirqs_fixup(); \
694 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \ 671 if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
695 == NOTIFY_STOP) \ 672 == NOTIFY_STOP) \
696 return; \ 673 return; \
697 conditional_sti(regs); \ 674 conditional_sti(regs); \
698 do_trap(trapnr, signr, str, regs, error_code, &info); \ 675 do_trap(trapnr, signr, str, regs, error_code, &info); \
699} 676}
700 677
701DO_ERROR_INFO( 0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip) 678DO_ERROR_INFO(0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip)
702DO_ERROR( 4, SIGSEGV, "overflow", overflow) 679DO_ERROR(4, SIGSEGV, "overflow", overflow)
703DO_ERROR( 5, SIGSEGV, "bounds", bounds) 680DO_ERROR(5, SIGSEGV, "bounds", bounds)
704DO_ERROR_INFO( 6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip) 681DO_ERROR_INFO(6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip)
705DO_ERROR( 7, SIGSEGV, "device not available", device_not_available) 682DO_ERROR(9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun)
706DO_ERROR( 9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun)
707DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS) 683DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
708DO_ERROR(11, SIGBUS, "segment not present", segment_not_present) 684DO_ERROR(11, SIGBUS, "segment not present", segment_not_present)
709DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0) 685DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0)
710DO_ERROR(18, SIGSEGV, "reserved", reserved)
711 686
712/* Runs on IST stack */ 687/* Runs on IST stack */
713asmlinkage void do_stack_segment(struct pt_regs *regs, long error_code) 688asmlinkage void do_stack_segment(struct pt_regs *regs, long error_code)
@@ -737,31 +712,34 @@ asmlinkage void do_double_fault(struct pt_regs * regs, long error_code)
737 die(str, regs, error_code); 712 die(str, regs, error_code);
738} 713}
739 714
740asmlinkage void __kprobes do_general_protection(struct pt_regs * regs, 715asmlinkage void __kprobes
741 long error_code) 716do_general_protection(struct pt_regs *regs, long error_code)
742{ 717{
743 struct task_struct *tsk = current; 718 struct task_struct *tsk;
744 719
745 conditional_sti(regs); 720 conditional_sti(regs);
746 721
747 if (user_mode(regs)) { 722 tsk = current;
748 tsk->thread.error_code = error_code; 723 if (!user_mode(regs))
749 tsk->thread.trap_no = 13; 724 goto gp_in_kernel;
750
751 if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
752 printk_ratelimit()) {
753 printk(KERN_INFO
754 "%s[%d] general protection ip:%lx sp:%lx error:%lx",
755 tsk->comm, tsk->pid,
756 regs->ip, regs->sp, error_code);
757 print_vma_addr(" in ", regs->ip);
758 printk("\n");
759 }
760 725
761 force_sig(SIGSEGV, tsk); 726 tsk->thread.error_code = error_code;
762 return; 727 tsk->thread.trap_no = 13;
763 } 728
729 if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
730 printk_ratelimit()) {
731 printk(KERN_INFO
732 "%s[%d] general protection ip:%lx sp:%lx error:%lx",
733 tsk->comm, tsk->pid,
734 regs->ip, regs->sp, error_code);
735 print_vma_addr(" in ", regs->ip);
736 printk("\n");
737 }
764 738
739 force_sig(SIGSEGV, tsk);
740 return;
741
742gp_in_kernel:
765 if (fixup_exception(regs)) 743 if (fixup_exception(regs))
766 return; 744 return;
767 745
@@ -774,14 +752,14 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
774} 752}
775 753
776static notrace __kprobes void 754static notrace __kprobes void
777mem_parity_error(unsigned char reason, struct pt_regs * regs) 755mem_parity_error(unsigned char reason, struct pt_regs *regs)
778{ 756{
779 printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x.\n", 757 printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x.\n",
780 reason); 758 reason);
781 printk(KERN_EMERG "You have some hardware problem, likely on the PCI bus.\n"); 759 printk(KERN_EMERG "You have some hardware problem, likely on the PCI bus.\n");
782 760
783#if defined(CONFIG_EDAC) 761#if defined(CONFIG_EDAC)
784 if(edac_handler_set()) { 762 if (edac_handler_set()) {
785 edac_atomic_assert_error(); 763 edac_atomic_assert_error();
786 return; 764 return;
787 } 765 }
@@ -798,7 +776,7 @@ mem_parity_error(unsigned char reason, struct pt_regs * regs)
798} 776}
799 777
800static notrace __kprobes void 778static notrace __kprobes void
801io_check_error(unsigned char reason, struct pt_regs * regs) 779io_check_error(unsigned char reason, struct pt_regs *regs)
802{ 780{
803 printk("NMI: IOCK error (debug interrupt?)\n"); 781 printk("NMI: IOCK error (debug interrupt?)\n");
804 show_registers(regs); 782 show_registers(regs);
@@ -828,14 +806,14 @@ unknown_nmi_error(unsigned char reason, struct pt_regs * regs)
828 806
829/* Runs on IST stack. This code must keep interrupts off all the time. 807/* Runs on IST stack. This code must keep interrupts off all the time.
830 Nested NMIs are prevented by the CPU. */ 808 Nested NMIs are prevented by the CPU. */
831asmlinkage notrace __kprobes void default_do_nmi(struct pt_regs *regs) 809asmlinkage notrace __kprobes void default_do_nmi(struct pt_regs *regs)
832{ 810{
833 unsigned char reason = 0; 811 unsigned char reason = 0;
834 int cpu; 812 int cpu;
835 813
836 cpu = smp_processor_id(); 814 cpu = smp_processor_id();
837 815
838 /* Only the BSP gets external NMIs from the system. */ 816 /* Only the BSP gets external NMIs from the system. */
839 if (!cpu) 817 if (!cpu)
840 reason = get_nmi_reason(); 818 reason = get_nmi_reason();
841 819
@@ -847,32 +825,57 @@ asmlinkage notrace __kprobes void default_do_nmi(struct pt_regs *regs)
847 * Ok, so this is none of the documented NMI sources, 825 * Ok, so this is none of the documented NMI sources,
848 * so it must be the NMI watchdog. 826 * so it must be the NMI watchdog.
849 */ 827 */
850 if (nmi_watchdog_tick(regs,reason)) 828 if (nmi_watchdog_tick(regs, reason))
851 return; 829 return;
852 if (!do_nmi_callback(regs,cpu)) 830 if (!do_nmi_callback(regs, cpu))
853 unknown_nmi_error(reason, regs); 831 unknown_nmi_error(reason, regs);
854 832
855 return; 833 return;
856 } 834 }
857 if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) 835 if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP)
858 return; 836 return;
859 837
860 /* AK: following checks seem to be broken on modern chipsets. FIXME */ 838 /* AK: following checks seem to be broken on modern chipsets. FIXME */
861
862 if (reason & 0x80) 839 if (reason & 0x80)
863 mem_parity_error(reason, regs); 840 mem_parity_error(reason, regs);
864 if (reason & 0x40) 841 if (reason & 0x40)
865 io_check_error(reason, regs); 842 io_check_error(reason, regs);
866} 843}
867 844
845asmlinkage notrace __kprobes void
846do_nmi(struct pt_regs *regs, long error_code)
847{
848 nmi_enter();
849
850 add_pda(__nmi_count, 1);
851
852 if (!ignore_nmis)
853 default_do_nmi(regs);
854
855 nmi_exit();
856}
857
858void stop_nmi(void)
859{
860 acpi_nmi_disable();
861 ignore_nmis++;
862}
863
864void restart_nmi(void)
865{
866 ignore_nmis--;
867 acpi_nmi_enable();
868}
869
868/* runs on IST stack. */ 870/* runs on IST stack. */
869asmlinkage void __kprobes do_int3(struct pt_regs * regs, long error_code) 871asmlinkage void __kprobes do_int3(struct pt_regs *regs, long error_code)
870{ 872{
871 trace_hardirqs_fixup(); 873 trace_hardirqs_fixup();
872 874
873 if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP) == NOTIFY_STOP) { 875 if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP)
876 == NOTIFY_STOP)
874 return; 877 return;
875 } 878
876 preempt_conditional_sti(regs); 879 preempt_conditional_sti(regs);
877 do_trap(3, SIGTRAP, "int3", regs, error_code, NULL); 880 do_trap(3, SIGTRAP, "int3", regs, error_code, NULL);
878 preempt_conditional_cli(regs); 881 preempt_conditional_cli(regs);
@@ -903,8 +906,8 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
903asmlinkage void __kprobes do_debug(struct pt_regs * regs, 906asmlinkage void __kprobes do_debug(struct pt_regs * regs,
904 unsigned long error_code) 907 unsigned long error_code)
905{ 908{
906 unsigned long condition;
907 struct task_struct *tsk = current; 909 struct task_struct *tsk = current;
910 unsigned long condition;
908 siginfo_t info; 911 siginfo_t info;
909 912
910 trace_hardirqs_fixup(); 913 trace_hardirqs_fixup();
@@ -925,21 +928,19 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
925 928
926 /* Mask out spurious debug traps due to lazy DR7 setting */ 929 /* Mask out spurious debug traps due to lazy DR7 setting */
927 if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) { 930 if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) {
928 if (!tsk->thread.debugreg7) { 931 if (!tsk->thread.debugreg7)
929 goto clear_dr7; 932 goto clear_dr7;
930 }
931 } 933 }
932 934
933 tsk->thread.debugreg6 = condition; 935 tsk->thread.debugreg6 = condition;
934 936
935
936 /* 937 /*
937 * Single-stepping through TF: make sure we ignore any events in 938 * Single-stepping through TF: make sure we ignore any events in
938 * kernel space (but re-enable TF when returning to user mode). 939 * kernel space (but re-enable TF when returning to user mode).
939 */ 940 */
940 if (condition & DR_STEP) { 941 if (condition & DR_STEP) {
941 if (!user_mode(regs)) 942 if (!user_mode(regs))
942 goto clear_TF_reenable; 943 goto clear_TF_reenable;
943 } 944 }
944 945
945 /* Ok, finally something we can handle */ 946 /* Ok, finally something we can handle */
@@ -952,7 +953,7 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
952 force_sig_info(SIGTRAP, &info, tsk); 953 force_sig_info(SIGTRAP, &info, tsk);
953 954
954clear_dr7: 955clear_dr7:
955 set_debugreg(0UL, 7); 956 set_debugreg(0, 7);
956 preempt_conditional_cli(regs); 957 preempt_conditional_cli(regs);
957 return; 958 return;
958 959
@@ -960,6 +961,7 @@ clear_TF_reenable:
960 set_tsk_thread_flag(tsk, TIF_SINGLESTEP); 961 set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
961 regs->flags &= ~X86_EFLAGS_TF; 962 regs->flags &= ~X86_EFLAGS_TF;
962 preempt_conditional_cli(regs); 963 preempt_conditional_cli(regs);
964 return;
963} 965}
964 966
965static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr) 967static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
@@ -982,7 +984,7 @@ static int kernel_math_error(struct pt_regs *regs, const char *str, int trapnr)
982asmlinkage void do_coprocessor_error(struct pt_regs *regs) 984asmlinkage void do_coprocessor_error(struct pt_regs *regs)
983{ 985{
984 void __user *ip = (void __user *)(regs->ip); 986 void __user *ip = (void __user *)(regs->ip);
985 struct task_struct * task; 987 struct task_struct *task;
986 siginfo_t info; 988 siginfo_t info;
987 unsigned short cwd, swd; 989 unsigned short cwd, swd;
988 990
@@ -1015,30 +1017,30 @@ asmlinkage void do_coprocessor_error(struct pt_regs *regs)
1015 cwd = get_fpu_cwd(task); 1017 cwd = get_fpu_cwd(task);
1016 swd = get_fpu_swd(task); 1018 swd = get_fpu_swd(task);
1017 switch (swd & ~cwd & 0x3f) { 1019 switch (swd & ~cwd & 0x3f) {
1018 case 0x000: 1020 case 0x000: /* No unmasked exception */
1019 default: 1021 default: /* Multiple exceptions */
1020 break; 1022 break;
1021 case 0x001: /* Invalid Op */ 1023 case 0x001: /* Invalid Op */
1022 /* 1024 /*
1023 * swd & 0x240 == 0x040: Stack Underflow 1025 * swd & 0x240 == 0x040: Stack Underflow
1024 * swd & 0x240 == 0x240: Stack Overflow 1026 * swd & 0x240 == 0x240: Stack Overflow
1025 * User must clear the SF bit (0x40) if set 1027 * User must clear the SF bit (0x40) if set
1026 */ 1028 */
1027 info.si_code = FPE_FLTINV; 1029 info.si_code = FPE_FLTINV;
1028 break; 1030 break;
1029 case 0x002: /* Denormalize */ 1031 case 0x002: /* Denormalize */
1030 case 0x010: /* Underflow */ 1032 case 0x010: /* Underflow */
1031 info.si_code = FPE_FLTUND; 1033 info.si_code = FPE_FLTUND;
1032 break; 1034 break;
1033 case 0x004: /* Zero Divide */ 1035 case 0x004: /* Zero Divide */
1034 info.si_code = FPE_FLTDIV; 1036 info.si_code = FPE_FLTDIV;
1035 break; 1037 break;
1036 case 0x008: /* Overflow */ 1038 case 0x008: /* Overflow */
1037 info.si_code = FPE_FLTOVF; 1039 info.si_code = FPE_FLTOVF;
1038 break; 1040 break;
1039 case 0x020: /* Precision */ 1041 case 0x020: /* Precision */
1040 info.si_code = FPE_FLTRES; 1042 info.si_code = FPE_FLTRES;
1041 break; 1043 break;
1042 } 1044 }
1043 force_sig_info(SIGFPE, &info, task); 1045 force_sig_info(SIGFPE, &info, task);
1044} 1046}
@@ -1051,7 +1053,7 @@ asmlinkage void bad_intr(void)
1051asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs) 1053asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
1052{ 1054{
1053 void __user *ip = (void __user *)(regs->ip); 1055 void __user *ip = (void __user *)(regs->ip);
1054 struct task_struct * task; 1056 struct task_struct *task;
1055 siginfo_t info; 1057 siginfo_t info;
1056 unsigned short mxcsr; 1058 unsigned short mxcsr;
1057 1059
@@ -1079,25 +1081,25 @@ asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
1079 */ 1081 */
1080 mxcsr = get_fpu_mxcsr(task); 1082 mxcsr = get_fpu_mxcsr(task);
1081 switch (~((mxcsr & 0x1f80) >> 7) & (mxcsr & 0x3f)) { 1083 switch (~((mxcsr & 0x1f80) >> 7) & (mxcsr & 0x3f)) {
1082 case 0x000: 1084 case 0x000:
1083 default: 1085 default:
1084 break; 1086 break;
1085 case 0x001: /* Invalid Op */ 1087 case 0x001: /* Invalid Op */
1086 info.si_code = FPE_FLTINV; 1088 info.si_code = FPE_FLTINV;
1087 break; 1089 break;
1088 case 0x002: /* Denormalize */ 1090 case 0x002: /* Denormalize */
1089 case 0x010: /* Underflow */ 1091 case 0x010: /* Underflow */
1090 info.si_code = FPE_FLTUND; 1092 info.si_code = FPE_FLTUND;
1091 break; 1093 break;
1092 case 0x004: /* Zero Divide */ 1094 case 0x004: /* Zero Divide */
1093 info.si_code = FPE_FLTDIV; 1095 info.si_code = FPE_FLTDIV;
1094 break; 1096 break;
1095 case 0x008: /* Overflow */ 1097 case 0x008: /* Overflow */
1096 info.si_code = FPE_FLTOVF; 1098 info.si_code = FPE_FLTOVF;
1097 break; 1099 break;
1098 case 0x020: /* Precision */ 1100 case 0x020: /* Precision */
1099 info.si_code = FPE_FLTRES; 1101 info.si_code = FPE_FLTRES;
1100 break; 1102 break;
1101 } 1103 }
1102 force_sig_info(SIGFPE, &info, task); 1104 force_sig_info(SIGFPE, &info, task);
1103} 1105}
@@ -1115,7 +1117,7 @@ asmlinkage void __attribute__((weak)) mce_threshold_interrupt(void)
1115} 1117}
1116 1118
1117/* 1119/*
1118 * 'math_state_restore()' saves the current math information in the 1120 * 'math_state_restore()' saves the current math information in the
1119 * old math state array, and gets the new ones from the current task 1121 * old math state array, and gets the new ones from the current task
1120 * 1122 *
1121 * Careful.. There are problems with IBM-designed IRQ13 behaviour. 1123 * Careful.. There are problems with IBM-designed IRQ13 behaviour.
@@ -1140,7 +1142,7 @@ asmlinkage void math_state_restore(void)
1140 local_irq_disable(); 1142 local_irq_disable();
1141 } 1143 }
1142 1144
1143 clts(); /* Allow maths ops (or we recurse) */ 1145 clts(); /* Allow maths ops (or we recurse) */
1144 restore_fpu_checking(&me->thread.xstate->fxsave); 1146 restore_fpu_checking(&me->thread.xstate->fxsave);
1145 task_thread_info(me)->status |= TS_USEDFPU; 1147 task_thread_info(me)->status |= TS_USEDFPU;
1146 me->fpu_counter++; 1148 me->fpu_counter++;
@@ -1149,64 +1151,61 @@ EXPORT_SYMBOL_GPL(math_state_restore);
1149 1151
1150void __init trap_init(void) 1152void __init trap_init(void)
1151{ 1153{
1152 set_intr_gate(0,&divide_error); 1154 set_intr_gate(0, &divide_error);
1153 set_intr_gate_ist(1,&debug,DEBUG_STACK); 1155 set_intr_gate_ist(1, &debug, DEBUG_STACK);
1154 set_intr_gate_ist(2,&nmi,NMI_STACK); 1156 set_intr_gate_ist(2, &nmi, NMI_STACK);
1155 set_system_gate_ist(3,&int3,DEBUG_STACK); /* int3 can be called from all */ 1157 set_system_gate_ist(3, &int3, DEBUG_STACK); /* int3 can be called from all */
1156 set_system_gate(4,&overflow); /* int4 can be called from all */ 1158 set_system_gate(4, &overflow); /* int4 can be called from all */
1157 set_intr_gate(5,&bounds); 1159 set_intr_gate(5, &bounds);
1158 set_intr_gate(6,&invalid_op); 1160 set_intr_gate(6, &invalid_op);
1159 set_intr_gate(7,&device_not_available); 1161 set_intr_gate(7, &device_not_available);
1160 set_intr_gate_ist(8,&double_fault, DOUBLEFAULT_STACK); 1162 set_intr_gate_ist(8, &double_fault, DOUBLEFAULT_STACK);
1161 set_intr_gate(9,&coprocessor_segment_overrun); 1163 set_intr_gate(9, &coprocessor_segment_overrun);
1162 set_intr_gate(10,&invalid_TSS); 1164 set_intr_gate(10, &invalid_TSS);
1163 set_intr_gate(11,&segment_not_present); 1165 set_intr_gate(11, &segment_not_present);
1164 set_intr_gate_ist(12,&stack_segment,STACKFAULT_STACK); 1166 set_intr_gate_ist(12, &stack_segment, STACKFAULT_STACK);
1165 set_intr_gate(13,&general_protection); 1167 set_intr_gate(13, &general_protection);
1166 set_intr_gate(14,&page_fault); 1168 set_intr_gate(14, &page_fault);
1167 set_intr_gate(15,&spurious_interrupt_bug); 1169 set_intr_gate(15, &spurious_interrupt_bug);
1168 set_intr_gate(16,&coprocessor_error); 1170 set_intr_gate(16, &coprocessor_error);
1169 set_intr_gate(17,&alignment_check); 1171 set_intr_gate(17, &alignment_check);
1170#ifdef CONFIG_X86_MCE 1172#ifdef CONFIG_X86_MCE
1171 set_intr_gate_ist(18,&machine_check, MCE_STACK); 1173 set_intr_gate_ist(18, &machine_check, MCE_STACK);
1172#endif 1174#endif
1173 set_intr_gate(19,&simd_coprocessor_error); 1175 set_intr_gate(19, &simd_coprocessor_error);
1174 1176
1175#ifdef CONFIG_IA32_EMULATION 1177#ifdef CONFIG_IA32_EMULATION
1176 set_system_gate(IA32_SYSCALL_VECTOR, ia32_syscall); 1178 set_system_gate(IA32_SYSCALL_VECTOR, ia32_syscall);
1177#endif 1179#endif
1178
1179 /* 1180 /*
1180 * initialize the per thread extended state: 1181 * initialize the per thread extended state:
1181 */ 1182 */
1182 init_thread_xstate(); 1183 init_thread_xstate();
1183 /* 1184 /*
1184 * Should be a barrier for any external CPU state. 1185 * Should be a barrier for any external CPU state:
1185 */ 1186 */
1186 cpu_init(); 1187 cpu_init();
1187} 1188}
1188 1189
1189
1190static int __init oops_setup(char *s) 1190static int __init oops_setup(char *s)
1191{ 1191{
1192 if (!s) 1192 if (!s)
1193 return -EINVAL; 1193 return -EINVAL;
1194 if (!strcmp(s, "panic")) 1194 if (!strcmp(s, "panic"))
1195 panic_on_oops = 1; 1195 panic_on_oops = 1;
1196 return 0; 1196 return 0;
1197} 1197}
1198early_param("oops", oops_setup); 1198early_param("oops", oops_setup);
1199 1199
1200static int __init kstack_setup(char *s) 1200static int __init kstack_setup(char *s)
1201{ 1201{
1202 if (!s) 1202 if (!s)
1203 return -EINVAL; 1203 return -EINVAL;
1204 kstack_depth_to_print = simple_strtoul(s,NULL,0); 1204 kstack_depth_to_print = simple_strtoul(s, NULL, 0);
1205 return 0; 1205 return 0;
1206} 1206}
1207early_param("kstack", kstack_setup); 1207early_param("kstack", kstack_setup);
1208 1208
1209
1210static int __init code_bytes_setup(char *s) 1209static int __init code_bytes_setup(char *s)
1211{ 1210{
1212 code_bytes = simple_strtoul(s, NULL, 0); 1211 code_bytes = simple_strtoul(s, NULL, 0);
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
new file mode 100644
index 000000000000..7603c0553909
--- /dev/null
+++ b/arch/x86/kernel/tsc.c
@@ -0,0 +1,535 @@
1#include <linux/kernel.h>
2#include <linux/sched.h>
3#include <linux/init.h>
4#include <linux/module.h>
5#include <linux/timer.h>
6#include <linux/acpi_pmtmr.h>
7#include <linux/cpufreq.h>
8#include <linux/dmi.h>
9#include <linux/delay.h>
10#include <linux/clocksource.h>
11#include <linux/percpu.h>
12
13#include <asm/hpet.h>
14#include <asm/timer.h>
15#include <asm/vgtod.h>
16#include <asm/time.h>
17#include <asm/delay.h>
18
19unsigned int cpu_khz; /* TSC clocks / usec, not used here */
20EXPORT_SYMBOL(cpu_khz);
21unsigned int tsc_khz;
22EXPORT_SYMBOL(tsc_khz);
23
24/*
25 * TSC can be unstable due to cpufreq or due to unsynced TSCs
26 */
27static int tsc_unstable;
28
29/* native_sched_clock() is called before tsc_init(), so
30 we must start with the TSC soft disabled to prevent
31 erroneous rdtsc usage on !cpu_has_tsc processors */
32static int tsc_disabled = -1;
33
34/*
35 * Scheduler clock - returns current time in nanosec units.
36 */
37u64 native_sched_clock(void)
38{
39 u64 this_offset;
40
41 /*
42 * Fall back to jiffies if there's no TSC available:
43 * ( But note that we still use it if the TSC is marked
44 * unstable. We do this because unlike Time Of Day,
45 * the scheduler clock tolerates small errors and it's
46 * very important for it to be as fast as the platform
47 * can achive it. )
48 */
49 if (unlikely(tsc_disabled)) {
50 /* No locking but a rare wrong value is not a big deal: */
51 return (jiffies_64 - INITIAL_JIFFIES) * (1000000000 / HZ);
52 }
53
54 /* read the Time Stamp Counter: */
55 rdtscll(this_offset);
56
57 /* return the value in ns */
58 return cycles_2_ns(this_offset);
59}
60
61/* We need to define a real function for sched_clock, to override the
62 weak default version */
63#ifdef CONFIG_PARAVIRT
64unsigned long long sched_clock(void)
65{
66 return paravirt_sched_clock();
67}
68#else
69unsigned long long
70sched_clock(void) __attribute__((alias("native_sched_clock")));
71#endif
72
73int check_tsc_unstable(void)
74{
75 return tsc_unstable;
76}
77EXPORT_SYMBOL_GPL(check_tsc_unstable);
78
79#ifdef CONFIG_X86_TSC
80int __init notsc_setup(char *str)
81{
82 printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, "
83 "cannot disable TSC completely.\n");
84 tsc_disabled = 1;
85 return 1;
86}
87#else
88/*
89 * disable flag for tsc. Takes effect by clearing the TSC cpu flag
90 * in cpu/common.c
91 */
92int __init notsc_setup(char *str)
93{
94 setup_clear_cpu_cap(X86_FEATURE_TSC);
95 return 1;
96}
97#endif
98
99__setup("notsc", notsc_setup);
100
101#define MAX_RETRIES 5
102#define SMI_TRESHOLD 50000
103
104/*
105 * Read TSC and the reference counters. Take care of SMI disturbance
106 */
107static u64 __init tsc_read_refs(u64 *pm, u64 *hpet)
108{
109 u64 t1, t2;
110 int i;
111
112 for (i = 0; i < MAX_RETRIES; i++) {
113 t1 = get_cycles();
114 if (hpet)
115 *hpet = hpet_readl(HPET_COUNTER) & 0xFFFFFFFF;
116 else
117 *pm = acpi_pm_read_early();
118 t2 = get_cycles();
119 if ((t2 - t1) < SMI_TRESHOLD)
120 return t2;
121 }
122 return ULLONG_MAX;
123}
124
125/**
126 * native_calibrate_tsc - calibrate the tsc on boot
127 */
128unsigned long native_calibrate_tsc(void)
129{
130 unsigned long flags;
131 u64 tsc1, tsc2, tr1, tr2, delta, pm1, pm2, hpet1, hpet2;
132 int hpet = is_hpet_enabled();
133 unsigned int tsc_khz_val = 0;
134
135 local_irq_save(flags);
136
137 tsc1 = tsc_read_refs(&pm1, hpet ? &hpet1 : NULL);
138
139 outb((inb(0x61) & ~0x02) | 0x01, 0x61);
140
141 outb(0xb0, 0x43);
142 outb((CLOCK_TICK_RATE / (1000 / 50)) & 0xff, 0x42);
143 outb((CLOCK_TICK_RATE / (1000 / 50)) >> 8, 0x42);
144 tr1 = get_cycles();
145 while ((inb(0x61) & 0x20) == 0);
146 tr2 = get_cycles();
147
148 tsc2 = tsc_read_refs(&pm2, hpet ? &hpet2 : NULL);
149
150 local_irq_restore(flags);
151
152 /*
153 * Preset the result with the raw and inaccurate PIT
154 * calibration value
155 */
156 delta = (tr2 - tr1);
157 do_div(delta, 50);
158 tsc_khz_val = delta;
159
160 /* hpet or pmtimer available ? */
161 if (!hpet && !pm1 && !pm2) {
162 printk(KERN_INFO "TSC calibrated against PIT\n");
163 goto out;
164 }
165
166 /* Check, whether the sampling was disturbed by an SMI */
167 if (tsc1 == ULLONG_MAX || tsc2 == ULLONG_MAX) {
168 printk(KERN_WARNING "TSC calibration disturbed by SMI, "
169 "using PIT calibration result\n");
170 goto out;
171 }
172
173 tsc2 = (tsc2 - tsc1) * 1000000LL;
174
175 if (hpet) {
176 printk(KERN_INFO "TSC calibrated against HPET\n");
177 if (hpet2 < hpet1)
178 hpet2 += 0x100000000ULL;
179 hpet2 -= hpet1;
180 tsc1 = ((u64)hpet2 * hpet_readl(HPET_PERIOD));
181 do_div(tsc1, 1000000);
182 } else {
183 printk(KERN_INFO "TSC calibrated against PM_TIMER\n");
184 if (pm2 < pm1)
185 pm2 += (u64)ACPI_PM_OVRRUN;
186 pm2 -= pm1;
187 tsc1 = pm2 * 1000000000LL;
188 do_div(tsc1, PMTMR_TICKS_PER_SEC);
189 }
190
191 do_div(tsc2, tsc1);
192 tsc_khz_val = tsc2;
193
194out:
195 return tsc_khz_val;
196}
197
198
199#ifdef CONFIG_X86_32
200/* Only called from the Powernow K7 cpu freq driver */
201int recalibrate_cpu_khz(void)
202{
203#ifndef CONFIG_SMP
204 unsigned long cpu_khz_old = cpu_khz;
205
206 if (cpu_has_tsc) {
207 tsc_khz = calibrate_tsc();
208 cpu_khz = tsc_khz;
209 cpu_data(0).loops_per_jiffy =
210 cpufreq_scale(cpu_data(0).loops_per_jiffy,
211 cpu_khz_old, cpu_khz);
212 return 0;
213 } else
214 return -ENODEV;
215#else
216 return -ENODEV;
217#endif
218}
219
220EXPORT_SYMBOL(recalibrate_cpu_khz);
221
222#endif /* CONFIG_X86_32 */
223
224/* Accelerators for sched_clock()
225 * convert from cycles(64bits) => nanoseconds (64bits)
226 * basic equation:
227 * ns = cycles / (freq / ns_per_sec)
228 * ns = cycles * (ns_per_sec / freq)
229 * ns = cycles * (10^9 / (cpu_khz * 10^3))
230 * ns = cycles * (10^6 / cpu_khz)
231 *
232 * Then we use scaling math (suggested by george@mvista.com) to get:
233 * ns = cycles * (10^6 * SC / cpu_khz) / SC
234 * ns = cycles * cyc2ns_scale / SC
235 *
236 * And since SC is a constant power of two, we can convert the div
237 * into a shift.
238 *
239 * We can use khz divisor instead of mhz to keep a better precision, since
240 * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
241 * (mathieu.desnoyers@polymtl.ca)
242 *
243 * -johnstul@us.ibm.com "math is hard, lets go shopping!"
244 */
245
246DEFINE_PER_CPU(unsigned long, cyc2ns);
247
248static void set_cyc2ns_scale(unsigned long cpu_khz, int cpu)
249{
250 unsigned long long tsc_now, ns_now;
251 unsigned long flags, *scale;
252
253 local_irq_save(flags);
254 sched_clock_idle_sleep_event();
255
256 scale = &per_cpu(cyc2ns, cpu);
257
258 rdtscll(tsc_now);
259 ns_now = __cycles_2_ns(tsc_now);
260
261 if (cpu_khz)
262 *scale = (NSEC_PER_MSEC << CYC2NS_SCALE_FACTOR)/cpu_khz;
263
264 sched_clock_idle_wakeup_event(0);
265 local_irq_restore(flags);
266}
267
268#ifdef CONFIG_CPU_FREQ
269
270/* Frequency scaling support. Adjust the TSC based timer when the cpu frequency
271 * changes.
272 *
273 * RED-PEN: On SMP we assume all CPUs run with the same frequency. It's
274 * not that important because current Opteron setups do not support
275 * scaling on SMP anyroads.
276 *
277 * Should fix up last_tsc too. Currently gettimeofday in the
278 * first tick after the change will be slightly wrong.
279 */
280
281static unsigned int ref_freq;
282static unsigned long loops_per_jiffy_ref;
283static unsigned long tsc_khz_ref;
284
285static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
286 void *data)
287{
288 struct cpufreq_freqs *freq = data;
289 unsigned long *lpj, dummy;
290
291 if (cpu_has(&cpu_data(freq->cpu), X86_FEATURE_CONSTANT_TSC))
292 return 0;
293
294 lpj = &dummy;
295 if (!(freq->flags & CPUFREQ_CONST_LOOPS))
296#ifdef CONFIG_SMP
297 lpj = &cpu_data(freq->cpu).loops_per_jiffy;
298#else
299 lpj = &boot_cpu_data.loops_per_jiffy;
300#endif
301
302 if (!ref_freq) {
303 ref_freq = freq->old;
304 loops_per_jiffy_ref = *lpj;
305 tsc_khz_ref = tsc_khz;
306 }
307 if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
308 (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
309 (val == CPUFREQ_RESUMECHANGE)) {
310 *lpj = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new);
311
312 tsc_khz = cpufreq_scale(tsc_khz_ref, ref_freq, freq->new);
313 if (!(freq->flags & CPUFREQ_CONST_LOOPS))
314 mark_tsc_unstable("cpufreq changes");
315 }
316
317 set_cyc2ns_scale(tsc_khz_ref, freq->cpu);
318
319 return 0;
320}
321
322static struct notifier_block time_cpufreq_notifier_block = {
323 .notifier_call = time_cpufreq_notifier
324};
325
326static int __init cpufreq_tsc(void)
327{
328 cpufreq_register_notifier(&time_cpufreq_notifier_block,
329 CPUFREQ_TRANSITION_NOTIFIER);
330 return 0;
331}
332
333core_initcall(cpufreq_tsc);
334
335#endif /* CONFIG_CPU_FREQ */
336
337/* clocksource code */
338
339static struct clocksource clocksource_tsc;
340
341/*
342 * We compare the TSC to the cycle_last value in the clocksource
343 * structure to avoid a nasty time-warp. This can be observed in a
344 * very small window right after one CPU updated cycle_last under
345 * xtime/vsyscall_gtod lock and the other CPU reads a TSC value which
346 * is smaller than the cycle_last reference value due to a TSC which
347 * is slighty behind. This delta is nowhere else observable, but in
348 * that case it results in a forward time jump in the range of hours
349 * due to the unsigned delta calculation of the time keeping core
350 * code, which is necessary to support wrapping clocksources like pm
351 * timer.
352 */
353static cycle_t read_tsc(void)
354{
355 cycle_t ret = (cycle_t)get_cycles();
356
357 return ret >= clocksource_tsc.cycle_last ?
358 ret : clocksource_tsc.cycle_last;
359}
360
361#ifdef CONFIG_X86_64
362static cycle_t __vsyscall_fn vread_tsc(void)
363{
364 cycle_t ret = (cycle_t)vget_cycles();
365
366 return ret >= __vsyscall_gtod_data.clock.cycle_last ?
367 ret : __vsyscall_gtod_data.clock.cycle_last;
368}
369#endif
370
371static struct clocksource clocksource_tsc = {
372 .name = "tsc",
373 .rating = 300,
374 .read = read_tsc,
375 .mask = CLOCKSOURCE_MASK(64),
376 .shift = 22,
377 .flags = CLOCK_SOURCE_IS_CONTINUOUS |
378 CLOCK_SOURCE_MUST_VERIFY,
379#ifdef CONFIG_X86_64
380 .vread = vread_tsc,
381#endif
382};
383
384void mark_tsc_unstable(char *reason)
385{
386 if (!tsc_unstable) {
387 tsc_unstable = 1;
388 printk("Marking TSC unstable due to %s\n", reason);
389 /* Change only the rating, when not registered */
390 if (clocksource_tsc.mult)
391 clocksource_change_rating(&clocksource_tsc, 0);
392 else
393 clocksource_tsc.rating = 0;
394 }
395}
396
397EXPORT_SYMBOL_GPL(mark_tsc_unstable);
398
399static int __init dmi_mark_tsc_unstable(const struct dmi_system_id *d)
400{
401 printk(KERN_NOTICE "%s detected: marking TSC unstable.\n",
402 d->ident);
403 tsc_unstable = 1;
404 return 0;
405}
406
407/* List of systems that have known TSC problems */
408static struct dmi_system_id __initdata bad_tsc_dmi_table[] = {
409 {
410 .callback = dmi_mark_tsc_unstable,
411 .ident = "IBM Thinkpad 380XD",
412 .matches = {
413 DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
414 DMI_MATCH(DMI_BOARD_NAME, "2635FA0"),
415 },
416 },
417 {}
418};
419
420/*
421 * Geode_LX - the OLPC CPU has a possibly a very reliable TSC
422 */
423#ifdef CONFIG_MGEODE_LX
424/* RTSC counts during suspend */
425#define RTSC_SUSP 0x100
426
427static void __init check_geode_tsc_reliable(void)
428{
429 unsigned long res_low, res_high;
430
431 rdmsr_safe(MSR_GEODE_BUSCONT_CONF0, &res_low, &res_high);
432 if (res_low & RTSC_SUSP)
433 clocksource_tsc.flags &= ~CLOCK_SOURCE_MUST_VERIFY;
434}
435#else
436static inline void check_geode_tsc_reliable(void) { }
437#endif
438
439/*
440 * Make an educated guess if the TSC is trustworthy and synchronized
441 * over all CPUs.
442 */
443__cpuinit int unsynchronized_tsc(void)
444{
445 if (!cpu_has_tsc || tsc_unstable)
446 return 1;
447
448#ifdef CONFIG_SMP
449 if (apic_is_clustered_box())
450 return 1;
451#endif
452
453 if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
454 return 0;
455 /*
456 * Intel systems are normally all synchronized.
457 * Exceptions must mark TSC as unstable:
458 */
459 if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) {
460 /* assume multi socket systems are not synchronized: */
461 if (num_possible_cpus() > 1)
462 tsc_unstable = 1;
463 }
464
465 return tsc_unstable;
466}
467
468static void __init init_tsc_clocksource(void)
469{
470 clocksource_tsc.mult = clocksource_khz2mult(tsc_khz,
471 clocksource_tsc.shift);
472 /* lower the rating if we already know its unstable: */
473 if (check_tsc_unstable()) {
474 clocksource_tsc.rating = 0;
475 clocksource_tsc.flags &= ~CLOCK_SOURCE_IS_CONTINUOUS;
476 }
477 clocksource_register(&clocksource_tsc);
478}
479
480void __init tsc_init(void)
481{
482 u64 lpj;
483 int cpu;
484
485 if (!cpu_has_tsc)
486 return;
487
488 tsc_khz = calibrate_tsc();
489 cpu_khz = tsc_khz;
490
491 if (!tsc_khz) {
492 mark_tsc_unstable("could not calculate TSC khz");
493 return;
494 }
495
496#ifdef CONFIG_X86_64
497 if (cpu_has(&boot_cpu_data, X86_FEATURE_CONSTANT_TSC) &&
498 (boot_cpu_data.x86_vendor == X86_VENDOR_AMD))
499 cpu_khz = calibrate_cpu();
500#endif
501
502 lpj = ((u64)tsc_khz * 1000);
503 do_div(lpj, HZ);
504 lpj_fine = lpj;
505
506 printk("Detected %lu.%03lu MHz processor.\n",
507 (unsigned long)cpu_khz / 1000,
508 (unsigned long)cpu_khz % 1000);
509
510 /*
511 * Secondary CPUs do not run through tsc_init(), so set up
512 * all the scale factors for all CPUs, assuming the same
513 * speed as the bootup CPU. (cpufreq notifiers will fix this
514 * up if their speed diverges)
515 */
516 for_each_possible_cpu(cpu)
517 set_cyc2ns_scale(cpu_khz, cpu);
518
519 if (tsc_disabled > 0)
520 return;
521
522 /* now allow native_sched_clock() to use rdtsc */
523 tsc_disabled = 0;
524
525 use_tsc_delay();
526 /* Check and install the TSC clocksource */
527 dmi_check_system(bad_tsc_dmi_table);
528
529 if (unsynchronized_tsc())
530 mark_tsc_unstable("TSCs unsynchronized");
531
532 check_geode_tsc_reliable();
533 init_tsc_clocksource();
534}
535
diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c
deleted file mode 100644
index 068759db63dd..000000000000
--- a/arch/x86/kernel/tsc_32.c
+++ /dev/null
@@ -1,453 +0,0 @@
1#include <linux/sched.h>
2#include <linux/clocksource.h>
3#include <linux/workqueue.h>
4#include <linux/cpufreq.h>
5#include <linux/jiffies.h>
6#include <linux/init.h>
7#include <linux/dmi.h>
8#include <linux/percpu.h>
9
10#include <asm/delay.h>
11#include <asm/tsc.h>
12#include <asm/io.h>
13#include <asm/timer.h>
14
15#include "mach_timer.h"
16
17static int tsc_disabled;
18
19/*
20 * On some systems the TSC frequency does not
21 * change with the cpu frequency. So we need
22 * an extra value to store the TSC freq
23 */
24unsigned int tsc_khz;
25EXPORT_SYMBOL_GPL(tsc_khz);
26
27#ifdef CONFIG_X86_TSC
28static int __init tsc_setup(char *str)
29{
30 printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, "
31 "cannot disable TSC completely.\n");
32 tsc_disabled = 1;
33 return 1;
34}
35#else
36/*
37 * disable flag for tsc. Takes effect by clearing the TSC cpu flag
38 * in cpu/common.c
39 */
40static int __init tsc_setup(char *str)
41{
42 setup_clear_cpu_cap(X86_FEATURE_TSC);
43 return 1;
44}
45#endif
46
47__setup("notsc", tsc_setup);
48
49/*
50 * code to mark and check if the TSC is unstable
51 * due to cpufreq or due to unsynced TSCs
52 */
53static int tsc_unstable;
54
55int check_tsc_unstable(void)
56{
57 return tsc_unstable;
58}
59EXPORT_SYMBOL_GPL(check_tsc_unstable);
60
61/* Accelerators for sched_clock()
62 * convert from cycles(64bits) => nanoseconds (64bits)
63 * basic equation:
64 * ns = cycles / (freq / ns_per_sec)
65 * ns = cycles * (ns_per_sec / freq)
66 * ns = cycles * (10^9 / (cpu_khz * 10^3))
67 * ns = cycles * (10^6 / cpu_khz)
68 *
69 * Then we use scaling math (suggested by george@mvista.com) to get:
70 * ns = cycles * (10^6 * SC / cpu_khz) / SC
71 * ns = cycles * cyc2ns_scale / SC
72 *
73 * And since SC is a constant power of two, we can convert the div
74 * into a shift.
75 *
76 * We can use khz divisor instead of mhz to keep a better precision, since
77 * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
78 * (mathieu.desnoyers@polymtl.ca)
79 *
80 * -johnstul@us.ibm.com "math is hard, lets go shopping!"
81 */
82
83DEFINE_PER_CPU(unsigned long, cyc2ns);
84
85static void set_cyc2ns_scale(unsigned long cpu_khz, int cpu)
86{
87 unsigned long long tsc_now, ns_now;
88 unsigned long flags, *scale;
89
90 local_irq_save(flags);
91 sched_clock_idle_sleep_event();
92
93 scale = &per_cpu(cyc2ns, cpu);
94
95 rdtscll(tsc_now);
96 ns_now = __cycles_2_ns(tsc_now);
97
98 if (cpu_khz)
99 *scale = (NSEC_PER_MSEC << CYC2NS_SCALE_FACTOR)/cpu_khz;
100
101 /*
102 * Start smoothly with the new frequency:
103 */
104 sched_clock_idle_wakeup_event(0);
105 local_irq_restore(flags);
106}
107
108/*
109 * Scheduler clock - returns current time in nanosec units.
110 */
111unsigned long long native_sched_clock(void)
112{
113 unsigned long long this_offset;
114
115 /*
116 * Fall back to jiffies if there's no TSC available:
117 * ( But note that we still use it if the TSC is marked
118 * unstable. We do this because unlike Time Of Day,
119 * the scheduler clock tolerates small errors and it's
120 * very important for it to be as fast as the platform
121 * can achive it. )
122 */
123 if (unlikely(tsc_disabled))
124 /* No locking but a rare wrong value is not a big deal: */
125 return (jiffies_64 - INITIAL_JIFFIES) * (1000000000 / HZ);
126
127 /* read the Time Stamp Counter: */
128 rdtscll(this_offset);
129
130 /* return the value in ns */
131 return cycles_2_ns(this_offset);
132}
133
134/* We need to define a real function for sched_clock, to override the
135 weak default version */
136#ifdef CONFIG_PARAVIRT
137unsigned long long sched_clock(void)
138{
139 return paravirt_sched_clock();
140}
141#else
142unsigned long long sched_clock(void)
143 __attribute__((alias("native_sched_clock")));
144#endif
145
146unsigned long native_calculate_cpu_khz(void)
147{
148 unsigned long long start, end;
149 unsigned long count;
150 u64 delta64 = (u64)ULLONG_MAX;
151 int i;
152 unsigned long flags;
153
154 local_irq_save(flags);
155
156 /* run 3 times to ensure the cache is warm and to get an accurate reading */
157 for (i = 0; i < 3; i++) {
158 mach_prepare_counter();
159 rdtscll(start);
160 mach_countup(&count);
161 rdtscll(end);
162
163 /*
164 * Error: ECTCNEVERSET
165 * The CTC wasn't reliable: we got a hit on the very first read,
166 * or the CPU was so fast/slow that the quotient wouldn't fit in
167 * 32 bits..
168 */
169 if (count <= 1)
170 continue;
171
172 /* cpu freq too slow: */
173 if ((end - start) <= CALIBRATE_TIME_MSEC)
174 continue;
175
176 /*
177 * We want the minimum time of all runs in case one of them
178 * is inaccurate due to SMI or other delay
179 */
180 delta64 = min(delta64, (end - start));
181 }
182
183 /* cpu freq too fast (or every run was bad): */
184 if (delta64 > (1ULL<<32))
185 goto err;
186
187 delta64 += CALIBRATE_TIME_MSEC/2; /* round for do_div */
188 do_div(delta64,CALIBRATE_TIME_MSEC);
189
190 local_irq_restore(flags);
191 return (unsigned long)delta64;
192err:
193 local_irq_restore(flags);
194 return 0;
195}
196
197int recalibrate_cpu_khz(void)
198{
199#ifndef CONFIG_SMP
200 unsigned long cpu_khz_old = cpu_khz;
201
202 if (cpu_has_tsc) {
203 cpu_khz = calculate_cpu_khz();
204 tsc_khz = cpu_khz;
205 cpu_data(0).loops_per_jiffy =
206 cpufreq_scale(cpu_data(0).loops_per_jiffy,
207 cpu_khz_old, cpu_khz);
208 return 0;
209 } else
210 return -ENODEV;
211#else
212 return -ENODEV;
213#endif
214}
215
216EXPORT_SYMBOL(recalibrate_cpu_khz);
217
218#ifdef CONFIG_CPU_FREQ
219
220/*
221 * if the CPU frequency is scaled, TSC-based delays will need a different
222 * loops_per_jiffy value to function properly.
223 */
224static unsigned int ref_freq;
225static unsigned long loops_per_jiffy_ref;
226static unsigned long cpu_khz_ref;
227
228static int
229time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data)
230{
231 struct cpufreq_freqs *freq = data;
232
233 if (!ref_freq) {
234 if (!freq->old){
235 ref_freq = freq->new;
236 return 0;
237 }
238 ref_freq = freq->old;
239 loops_per_jiffy_ref = cpu_data(freq->cpu).loops_per_jiffy;
240 cpu_khz_ref = cpu_khz;
241 }
242
243 if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
244 (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
245 (val == CPUFREQ_RESUMECHANGE)) {
246 if (!(freq->flags & CPUFREQ_CONST_LOOPS))
247 cpu_data(freq->cpu).loops_per_jiffy =
248 cpufreq_scale(loops_per_jiffy_ref,
249 ref_freq, freq->new);
250
251 if (cpu_khz) {
252
253 if (num_online_cpus() == 1)
254 cpu_khz = cpufreq_scale(cpu_khz_ref,
255 ref_freq, freq->new);
256 if (!(freq->flags & CPUFREQ_CONST_LOOPS)) {
257 tsc_khz = cpu_khz;
258 set_cyc2ns_scale(cpu_khz, freq->cpu);
259 /*
260 * TSC based sched_clock turns
261 * to junk w/ cpufreq
262 */
263 mark_tsc_unstable("cpufreq changes");
264 }
265 }
266 }
267
268 return 0;
269}
270
271static struct notifier_block time_cpufreq_notifier_block = {
272 .notifier_call = time_cpufreq_notifier
273};
274
275static int __init cpufreq_tsc(void)
276{
277 return cpufreq_register_notifier(&time_cpufreq_notifier_block,
278 CPUFREQ_TRANSITION_NOTIFIER);
279}
280core_initcall(cpufreq_tsc);
281
282#endif
283
284/* clock source code */
285
286static unsigned long current_tsc_khz;
287static struct clocksource clocksource_tsc;
288
289/*
290 * We compare the TSC to the cycle_last value in the clocksource
291 * structure to avoid a nasty time-warp issue. This can be observed in
292 * a very small window right after one CPU updated cycle_last under
293 * xtime lock and the other CPU reads a TSC value which is smaller
294 * than the cycle_last reference value due to a TSC which is slighty
295 * behind. This delta is nowhere else observable, but in that case it
296 * results in a forward time jump in the range of hours due to the
297 * unsigned delta calculation of the time keeping core code, which is
298 * necessary to support wrapping clocksources like pm timer.
299 */
300static cycle_t read_tsc(void)
301{
302 cycle_t ret;
303
304 rdtscll(ret);
305
306 return ret >= clocksource_tsc.cycle_last ?
307 ret : clocksource_tsc.cycle_last;
308}
309
310static struct clocksource clocksource_tsc = {
311 .name = "tsc",
312 .rating = 300,
313 .read = read_tsc,
314 .mask = CLOCKSOURCE_MASK(64),
315 .mult = 0, /* to be set */
316 .shift = 22,
317 .flags = CLOCK_SOURCE_IS_CONTINUOUS |
318 CLOCK_SOURCE_MUST_VERIFY,
319};
320
321void mark_tsc_unstable(char *reason)
322{
323 if (!tsc_unstable) {
324 tsc_unstable = 1;
325 printk("Marking TSC unstable due to: %s.\n", reason);
326 /* Can be called before registration */
327 if (clocksource_tsc.mult)
328 clocksource_change_rating(&clocksource_tsc, 0);
329 else
330 clocksource_tsc.rating = 0;
331 }
332}
333EXPORT_SYMBOL_GPL(mark_tsc_unstable);
334
335static int __init dmi_mark_tsc_unstable(const struct dmi_system_id *d)
336{
337 printk(KERN_NOTICE "%s detected: marking TSC unstable.\n",
338 d->ident);
339 tsc_unstable = 1;
340 return 0;
341}
342
343/* List of systems that have known TSC problems */
344static struct dmi_system_id __initdata bad_tsc_dmi_table[] = {
345 {
346 .callback = dmi_mark_tsc_unstable,
347 .ident = "IBM Thinkpad 380XD",
348 .matches = {
349 DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
350 DMI_MATCH(DMI_BOARD_NAME, "2635FA0"),
351 },
352 },
353 {}
354};
355
356/*
357 * Make an educated guess if the TSC is trustworthy and synchronized
358 * over all CPUs.
359 */
360__cpuinit int unsynchronized_tsc(void)
361{
362 if (!cpu_has_tsc || tsc_unstable)
363 return 1;
364
365 /* Anything with constant TSC should be synchronized */
366 if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
367 return 0;
368
369 /*
370 * Intel systems are normally all synchronized.
371 * Exceptions must mark TSC as unstable:
372 */
373 if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) {
374 /* assume multi socket systems are not synchronized: */
375 if (num_possible_cpus() > 1)
376 tsc_unstable = 1;
377 }
378 return tsc_unstable;
379}
380
381/*
382 * Geode_LX - the OLPC CPU has a possibly a very reliable TSC
383 */
384#ifdef CONFIG_MGEODE_LX
385/* RTSC counts during suspend */
386#define RTSC_SUSP 0x100
387
388static void __init check_geode_tsc_reliable(void)
389{
390 unsigned long res_low, res_high;
391
392 rdmsr_safe(MSR_GEODE_BUSCONT_CONF0, &res_low, &res_high);
393 if (res_low & RTSC_SUSP)
394 clocksource_tsc.flags &= ~CLOCK_SOURCE_MUST_VERIFY;
395}
396#else
397static inline void check_geode_tsc_reliable(void) { }
398#endif
399
400
401void __init tsc_init(void)
402{
403 int cpu;
404
405 if (!cpu_has_tsc || tsc_disabled) {
406 /* Disable the TSC in case of !cpu_has_tsc */
407 tsc_disabled = 1;
408 return;
409 }
410
411 cpu_khz = calculate_cpu_khz();
412 tsc_khz = cpu_khz;
413
414 if (!cpu_khz) {
415 mark_tsc_unstable("could not calculate TSC khz");
416 /*
417 * We need to disable the TSC completely in this case
418 * to prevent sched_clock() from using it.
419 */
420 tsc_disabled = 1;
421 return;
422 }
423
424 printk("Detected %lu.%03lu MHz processor.\n",
425 (unsigned long)cpu_khz / 1000,
426 (unsigned long)cpu_khz % 1000);
427
428 /*
429 * Secondary CPUs do not run through tsc_init(), so set up
430 * all the scale factors for all CPUs, assuming the same
431 * speed as the bootup CPU. (cpufreq notifiers will fix this
432 * up if their speed diverges)
433 */
434 for_each_possible_cpu(cpu)
435 set_cyc2ns_scale(cpu_khz, cpu);
436
437 use_tsc_delay();
438
439 /* Check and install the TSC clocksource */
440 dmi_check_system(bad_tsc_dmi_table);
441
442 unsynchronized_tsc();
443 check_geode_tsc_reliable();
444 current_tsc_khz = tsc_khz;
445 clocksource_tsc.mult = clocksource_khz2mult(current_tsc_khz,
446 clocksource_tsc.shift);
447 /* lower the rating if we already know its unstable: */
448 if (check_tsc_unstable()) {
449 clocksource_tsc.rating = 0;
450 clocksource_tsc.flags &= ~CLOCK_SOURCE_IS_CONTINUOUS;
451 }
452 clocksource_register(&clocksource_tsc);
453}
diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
deleted file mode 100644
index 1784b8077a12..000000000000
--- a/arch/x86/kernel/tsc_64.c
+++ /dev/null
@@ -1,357 +0,0 @@
1#include <linux/kernel.h>
2#include <linux/sched.h>
3#include <linux/interrupt.h>
4#include <linux/init.h>
5#include <linux/clocksource.h>
6#include <linux/time.h>
7#include <linux/acpi.h>
8#include <linux/cpufreq.h>
9#include <linux/acpi_pmtmr.h>
10
11#include <asm/hpet.h>
12#include <asm/timex.h>
13#include <asm/timer.h>
14#include <asm/vgtod.h>
15
16static int notsc __initdata = 0;
17
18unsigned int cpu_khz; /* TSC clocks / usec, not used here */
19EXPORT_SYMBOL(cpu_khz);
20unsigned int tsc_khz;
21EXPORT_SYMBOL(tsc_khz);
22
23/* Accelerators for sched_clock()
24 * convert from cycles(64bits) => nanoseconds (64bits)
25 * basic equation:
26 * ns = cycles / (freq / ns_per_sec)
27 * ns = cycles * (ns_per_sec / freq)
28 * ns = cycles * (10^9 / (cpu_khz * 10^3))
29 * ns = cycles * (10^6 / cpu_khz)
30 *
31 * Then we use scaling math (suggested by george@mvista.com) to get:
32 * ns = cycles * (10^6 * SC / cpu_khz) / SC
33 * ns = cycles * cyc2ns_scale / SC
34 *
35 * And since SC is a constant power of two, we can convert the div
36 * into a shift.
37 *
38 * We can use khz divisor instead of mhz to keep a better precision, since
39 * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
40 * (mathieu.desnoyers@polymtl.ca)
41 *
42 * -johnstul@us.ibm.com "math is hard, lets go shopping!"
43 */
44DEFINE_PER_CPU(unsigned long, cyc2ns);
45
46static void set_cyc2ns_scale(unsigned long cpu_khz, int cpu)
47{
48 unsigned long long tsc_now, ns_now;
49 unsigned long flags, *scale;
50
51 local_irq_save(flags);
52 sched_clock_idle_sleep_event();
53
54 scale = &per_cpu(cyc2ns, cpu);
55
56 rdtscll(tsc_now);
57 ns_now = __cycles_2_ns(tsc_now);
58
59 if (cpu_khz)
60 *scale = (NSEC_PER_MSEC << CYC2NS_SCALE_FACTOR)/cpu_khz;
61
62 sched_clock_idle_wakeup_event(0);
63 local_irq_restore(flags);
64}
65
66unsigned long long native_sched_clock(void)
67{
68 unsigned long a = 0;
69
70 /* Could do CPU core sync here. Opteron can execute rdtsc speculatively,
71 * which means it is not completely exact and may not be monotonous
72 * between CPUs. But the errors should be too small to matter for
73 * scheduling purposes.
74 */
75
76 rdtscll(a);
77 return cycles_2_ns(a);
78}
79
80/* We need to define a real function for sched_clock, to override the
81 weak default version */
82#ifdef CONFIG_PARAVIRT
83unsigned long long sched_clock(void)
84{
85 return paravirt_sched_clock();
86}
87#else
88unsigned long long
89sched_clock(void) __attribute__((alias("native_sched_clock")));
90#endif
91
92
93static int tsc_unstable;
94
95int check_tsc_unstable(void)
96{
97 return tsc_unstable;
98}
99EXPORT_SYMBOL_GPL(check_tsc_unstable);
100
101#ifdef CONFIG_CPU_FREQ
102
103/* Frequency scaling support. Adjust the TSC based timer when the cpu frequency
104 * changes.
105 *
106 * RED-PEN: On SMP we assume all CPUs run with the same frequency. It's
107 * not that important because current Opteron setups do not support
108 * scaling on SMP anyroads.
109 *
110 * Should fix up last_tsc too. Currently gettimeofday in the
111 * first tick after the change will be slightly wrong.
112 */
113
114static unsigned int ref_freq;
115static unsigned long loops_per_jiffy_ref;
116static unsigned long tsc_khz_ref;
117
118static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
119 void *data)
120{
121 struct cpufreq_freqs *freq = data;
122 unsigned long *lpj, dummy;
123
124 if (cpu_has(&cpu_data(freq->cpu), X86_FEATURE_CONSTANT_TSC))
125 return 0;
126
127 lpj = &dummy;
128 if (!(freq->flags & CPUFREQ_CONST_LOOPS))
129#ifdef CONFIG_SMP
130 lpj = &cpu_data(freq->cpu).loops_per_jiffy;
131#else
132 lpj = &boot_cpu_data.loops_per_jiffy;
133#endif
134
135 if (!ref_freq) {
136 ref_freq = freq->old;
137 loops_per_jiffy_ref = *lpj;
138 tsc_khz_ref = tsc_khz;
139 }
140 if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
141 (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
142 (val == CPUFREQ_RESUMECHANGE)) {
143 *lpj =
144 cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new);
145
146 tsc_khz = cpufreq_scale(tsc_khz_ref, ref_freq, freq->new);
147 if (!(freq->flags & CPUFREQ_CONST_LOOPS))
148 mark_tsc_unstable("cpufreq changes");
149 }
150
151 set_cyc2ns_scale(tsc_khz_ref, freq->cpu);
152
153 return 0;
154}
155
156static struct notifier_block time_cpufreq_notifier_block = {
157 .notifier_call = time_cpufreq_notifier
158};
159
160static int __init cpufreq_tsc(void)
161{
162 cpufreq_register_notifier(&time_cpufreq_notifier_block,
163 CPUFREQ_TRANSITION_NOTIFIER);
164 return 0;
165}
166
167core_initcall(cpufreq_tsc);
168
169#endif
170
171#define MAX_RETRIES 5
172#define SMI_TRESHOLD 50000
173
174/*
175 * Read TSC and the reference counters. Take care of SMI disturbance
176 */
177static unsigned long __init tsc_read_refs(unsigned long *pm,
178 unsigned long *hpet)
179{
180 unsigned long t1, t2;
181 int i;
182
183 for (i = 0; i < MAX_RETRIES; i++) {
184 t1 = get_cycles();
185 if (hpet)
186 *hpet = hpet_readl(HPET_COUNTER) & 0xFFFFFFFF;
187 else
188 *pm = acpi_pm_read_early();
189 t2 = get_cycles();
190 if ((t2 - t1) < SMI_TRESHOLD)
191 return t2;
192 }
193 return ULONG_MAX;
194}
195
196/**
197 * tsc_calibrate - calibrate the tsc on boot
198 */
199void __init tsc_calibrate(void)
200{
201 unsigned long flags, tsc1, tsc2, tr1, tr2, pm1, pm2, hpet1, hpet2;
202 int hpet = is_hpet_enabled(), cpu;
203
204 local_irq_save(flags);
205
206 tsc1 = tsc_read_refs(&pm1, hpet ? &hpet1 : NULL);
207
208 outb((inb(0x61) & ~0x02) | 0x01, 0x61);
209
210 outb(0xb0, 0x43);
211 outb((CLOCK_TICK_RATE / (1000 / 50)) & 0xff, 0x42);
212 outb((CLOCK_TICK_RATE / (1000 / 50)) >> 8, 0x42);
213 tr1 = get_cycles();
214 while ((inb(0x61) & 0x20) == 0);
215 tr2 = get_cycles();
216
217 tsc2 = tsc_read_refs(&pm2, hpet ? &hpet2 : NULL);
218
219 local_irq_restore(flags);
220
221 /*
222 * Preset the result with the raw and inaccurate PIT
223 * calibration value
224 */
225 tsc_khz = (tr2 - tr1) / 50;
226
227 /* hpet or pmtimer available ? */
228 if (!hpet && !pm1 && !pm2) {
229 printk(KERN_INFO "TSC calibrated against PIT\n");
230 goto out;
231 }
232
233 /* Check, whether the sampling was disturbed by an SMI */
234 if (tsc1 == ULONG_MAX || tsc2 == ULONG_MAX) {
235 printk(KERN_WARNING "TSC calibration disturbed by SMI, "
236 "using PIT calibration result\n");
237 goto out;
238 }
239
240 tsc2 = (tsc2 - tsc1) * 1000000L;
241
242 if (hpet) {
243 printk(KERN_INFO "TSC calibrated against HPET\n");
244 if (hpet2 < hpet1)
245 hpet2 += 0x100000000;
246 hpet2 -= hpet1;
247 tsc1 = (hpet2 * hpet_readl(HPET_PERIOD)) / 1000000;
248 } else {
249 printk(KERN_INFO "TSC calibrated against PM_TIMER\n");
250 if (pm2 < pm1)
251 pm2 += ACPI_PM_OVRRUN;
252 pm2 -= pm1;
253 tsc1 = (pm2 * 1000000000) / PMTMR_TICKS_PER_SEC;
254 }
255
256 tsc_khz = tsc2 / tsc1;
257
258out:
259 for_each_possible_cpu(cpu)
260 set_cyc2ns_scale(tsc_khz, cpu);
261}
262
263/*
264 * Make an educated guess if the TSC is trustworthy and synchronized
265 * over all CPUs.
266 */
267__cpuinit int unsynchronized_tsc(void)
268{
269 if (tsc_unstable)
270 return 1;
271
272#ifdef CONFIG_SMP
273 if (apic_is_clustered_box())
274 return 1;
275#endif
276
277 if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
278 return 0;
279
280 /* Assume multi socket systems are not synchronized */
281 return num_present_cpus() > 1;
282}
283
284int __init notsc_setup(char *s)
285{
286 notsc = 1;
287 return 1;
288}
289
290__setup("notsc", notsc_setup);
291
292static struct clocksource clocksource_tsc;
293
294/*
295 * We compare the TSC to the cycle_last value in the clocksource
296 * structure to avoid a nasty time-warp. This can be observed in a
297 * very small window right after one CPU updated cycle_last under
298 * xtime/vsyscall_gtod lock and the other CPU reads a TSC value which
299 * is smaller than the cycle_last reference value due to a TSC which
300 * is slighty behind. This delta is nowhere else observable, but in
301 * that case it results in a forward time jump in the range of hours
302 * due to the unsigned delta calculation of the time keeping core
303 * code, which is necessary to support wrapping clocksources like pm
304 * timer.
305 */
306static cycle_t read_tsc(void)
307{
308 cycle_t ret = (cycle_t)get_cycles();
309
310 return ret >= clocksource_tsc.cycle_last ?
311 ret : clocksource_tsc.cycle_last;
312}
313
314static cycle_t __vsyscall_fn vread_tsc(void)
315{
316 cycle_t ret = (cycle_t)vget_cycles();
317
318 return ret >= __vsyscall_gtod_data.clock.cycle_last ?
319 ret : __vsyscall_gtod_data.clock.cycle_last;
320}
321
322static struct clocksource clocksource_tsc = {
323 .name = "tsc",
324 .rating = 300,
325 .read = read_tsc,
326 .mask = CLOCKSOURCE_MASK(64),
327 .shift = 22,
328 .flags = CLOCK_SOURCE_IS_CONTINUOUS |
329 CLOCK_SOURCE_MUST_VERIFY,
330 .vread = vread_tsc,
331};
332
333void mark_tsc_unstable(char *reason)
334{
335 if (!tsc_unstable) {
336 tsc_unstable = 1;
337 printk("Marking TSC unstable due to %s\n", reason);
338 /* Change only the rating, when not registered */
339 if (clocksource_tsc.mult)
340 clocksource_change_rating(&clocksource_tsc, 0);
341 else
342 clocksource_tsc.rating = 0;
343 }
344}
345EXPORT_SYMBOL_GPL(mark_tsc_unstable);
346
347void __init init_tsc_clocksource(void)
348{
349 if (!notsc) {
350 clocksource_tsc.mult = clocksource_khz2mult(tsc_khz,
351 clocksource_tsc.shift);
352 if (check_tsc_unstable())
353 clocksource_tsc.rating = 0;
354
355 clocksource_register(&clocksource_tsc);
356 }
357}
diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c
new file mode 100644
index 000000000000..e94bdb6add1d
--- /dev/null
+++ b/arch/x86/kernel/visws_quirks.c
@@ -0,0 +1,709 @@
1/*
2 * SGI Visual Workstation support and quirks, unmaintained.
3 *
4 * Split out from setup.c by davej@suse.de
5 *
6 * Copyright (C) 1999 Bent Hagemark, Ingo Molnar
7 *
8 * SGI Visual Workstation interrupt controller
9 *
10 * The Cobalt system ASIC in the Visual Workstation contains a "Cobalt" APIC
11 * which serves as the main interrupt controller in the system. Non-legacy
12 * hardware in the system uses this controller directly. Legacy devices
13 * are connected to the PIIX4 which in turn has its 8259(s) connected to
14 * a of the Cobalt APIC entry.
15 *
16 * 09/02/2000 - Updated for 2.4 by jbarnes@sgi.com
17 *
18 * 25/11/2002 - Updated for 2.5 by Andrey Panin <pazke@orbita1.ru>
19 */
20#include <linux/interrupt.h>
21#include <linux/module.h>
22#include <linux/init.h>
23#include <linux/smp.h>
24
25#include <asm/visws/cobalt.h>
26#include <asm/visws/piix4.h>
27#include <asm/arch_hooks.h>
28#include <asm/fixmap.h>
29#include <asm/reboot.h>
30#include <asm/setup.h>
31#include <asm/e820.h>
32#include <asm/smp.h>
33#include <asm/io.h>
34
35#include <mach_ipi.h>
36
37#include "mach_apic.h"
38
39#include <linux/init.h>
40#include <linux/smp.h>
41
42#include <linux/kernel_stat.h>
43#include <linux/interrupt.h>
44#include <linux/init.h>
45
46#include <asm/io.h>
47#include <asm/apic.h>
48#include <asm/i8259.h>
49#include <asm/irq_vectors.h>
50#include <asm/visws/cobalt.h>
51#include <asm/visws/lithium.h>
52#include <asm/visws/piix4.h>
53
54#include <linux/sched.h>
55#include <linux/kernel.h>
56#include <linux/init.h>
57#include <linux/pci.h>
58#include <linux/pci_ids.h>
59
60extern int no_broadcast;
61
62#include <asm/io.h>
63#include <asm/apic.h>
64#include <asm/arch_hooks.h>
65#include <asm/visws/cobalt.h>
66#include <asm/visws/lithium.h>
67
68char visws_board_type = -1;
69char visws_board_rev = -1;
70
71int is_visws_box(void)
72{
73 return visws_board_type >= 0;
74}
75
76static int __init visws_time_init_quirk(void)
77{
78 printk(KERN_INFO "Starting Cobalt Timer system clock\n");
79
80 /* Set the countdown value */
81 co_cpu_write(CO_CPU_TIMEVAL, CO_TIME_HZ/HZ);
82
83 /* Start the timer */
84 co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) | CO_CTRL_TIMERUN);
85
86 /* Enable (unmask) the timer interrupt */
87 co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) & ~CO_CTRL_TIMEMASK);
88
89 /*
90 * Zero return means the generic timer setup code will set up
91 * the standard vector:
92 */
93 return 0;
94}
95
96static int __init visws_pre_intr_init_quirk(void)
97{
98 init_VISWS_APIC_irqs();
99
100 /*
101 * We dont want ISA irqs to be set up by the generic code:
102 */
103 return 1;
104}
105
106/* Quirk for machine specific memory setup. */
107
108#define MB (1024 * 1024)
109
110unsigned long sgivwfb_mem_phys;
111unsigned long sgivwfb_mem_size;
112EXPORT_SYMBOL(sgivwfb_mem_phys);
113EXPORT_SYMBOL(sgivwfb_mem_size);
114
115long long mem_size __initdata = 0;
116
117static char * __init visws_memory_setup_quirk(void)
118{
119 long long gfx_mem_size = 8 * MB;
120
121 mem_size = boot_params.alt_mem_k;
122
123 if (!mem_size) {
124 printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n");
125 mem_size = 128 * MB;
126 }
127
128 /*
129 * this hardcodes the graphics memory to 8 MB
130 * it really should be sized dynamically (or at least
131 * set as a boot param)
132 */
133 if (!sgivwfb_mem_size) {
134 printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n");
135 sgivwfb_mem_size = 8 * MB;
136 }
137
138 /*
139 * Trim to nearest MB
140 */
141 sgivwfb_mem_size &= ~((1 << 20) - 1);
142 sgivwfb_mem_phys = mem_size - gfx_mem_size;
143
144 e820_add_region(0, LOWMEMSIZE(), E820_RAM);
145 e820_add_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
146 e820_add_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
147
148 return "PROM";
149}
150
151static void visws_machine_emergency_restart(void)
152{
153 /*
154 * Visual Workstations restart after this
155 * register is poked on the PIIX4
156 */
157 outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT);
158}
159
160static void visws_machine_power_off(void)
161{
162 unsigned short pm_status;
163/* extern unsigned int pci_bus0; */
164
165 while ((pm_status = inw(PMSTS_PORT)) & 0x100)
166 outw(pm_status, PMSTS_PORT);
167
168 outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT);
169
170 mdelay(10);
171
172#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
173 (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
174
175/* outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8); */
176 outl(PIIX_SPECIAL_STOP, 0xCFC);
177}
178
179static int __init visws_get_smp_config_quirk(unsigned int early)
180{
181 /*
182 * Prevent MP-table parsing by the generic code:
183 */
184 return 1;
185}
186
187extern unsigned int __cpuinitdata maxcpus;
188
189/*
190 * The Visual Workstation is Intel MP compliant in the hardware
191 * sense, but it doesn't have a BIOS(-configuration table).
192 * No problem for Linux.
193 */
194
195static void __init MP_processor_info (struct mpc_config_processor *m)
196{
197 int ver, logical_apicid;
198 physid_mask_t apic_cpus;
199
200 if (!(m->mpc_cpuflag & CPU_ENABLED))
201 return;
202
203 logical_apicid = m->mpc_apicid;
204 printk(KERN_INFO "%sCPU #%d %u:%u APIC version %d\n",
205 m->mpc_cpuflag & CPU_BOOTPROCESSOR ? "Bootup " : "",
206 m->mpc_apicid,
207 (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
208 (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
209 m->mpc_apicver);
210
211 if (m->mpc_cpuflag & CPU_BOOTPROCESSOR)
212 boot_cpu_physical_apicid = m->mpc_apicid;
213
214 ver = m->mpc_apicver;
215 if ((ver >= 0x14 && m->mpc_apicid >= 0xff) || m->mpc_apicid >= 0xf) {
216 printk(KERN_ERR "Processor #%d INVALID. (Max ID: %d).\n",
217 m->mpc_apicid, MAX_APICS);
218 return;
219 }
220
221 apic_cpus = apicid_to_cpu_present(m->mpc_apicid);
222 physids_or(phys_cpu_present_map, phys_cpu_present_map, apic_cpus);
223 /*
224 * Validate version
225 */
226 if (ver == 0x0) {
227 printk(KERN_ERR "BIOS bug, APIC version is 0 for CPU#%d! "
228 "fixing up to 0x10. (tell your hw vendor)\n",
229 m->mpc_apicid);
230 ver = 0x10;
231 }
232 apic_version[m->mpc_apicid] = ver;
233}
234
235int __init visws_find_smp_config_quirk(unsigned int reserve)
236{
237 struct mpc_config_processor *mp = phys_to_virt(CO_CPU_TAB_PHYS);
238 unsigned short ncpus = readw(phys_to_virt(CO_CPU_NUM_PHYS));
239
240 if (ncpus > CO_CPU_MAX) {
241 printk(KERN_WARNING "find_visws_smp: got cpu count of %d at %p\n",
242 ncpus, mp);
243
244 ncpus = CO_CPU_MAX;
245 }
246
247 if (ncpus > maxcpus)
248 ncpus = maxcpus;
249
250#ifdef CONFIG_X86_LOCAL_APIC
251 smp_found_config = 1;
252#endif
253 while (ncpus--)
254 MP_processor_info(mp++);
255
256 mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
257
258 return 1;
259}
260
261extern int visws_trap_init_quirk(void);
262
263void __init visws_early_detect(void)
264{
265 int raw;
266
267 visws_board_type = (char)(inb_p(PIIX_GPI_BD_REG) & PIIX_GPI_BD_REG)
268 >> PIIX_GPI_BD_SHIFT;
269
270 if (visws_board_type < 0)
271 return;
272
273 /*
274 * Install special quirks for timer, interrupt and memory setup:
275 */
276 arch_time_init_quirk = visws_time_init_quirk;
277 arch_pre_intr_init_quirk = visws_pre_intr_init_quirk;
278 arch_memory_setup_quirk = visws_memory_setup_quirk;
279
280 /*
281 * Fall back to generic behavior for traps:
282 */
283 arch_intr_init_quirk = NULL;
284 arch_trap_init_quirk = visws_trap_init_quirk;
285
286 /*
287 * Install reboot quirks:
288 */
289 pm_power_off = visws_machine_power_off;
290 machine_ops.emergency_restart = visws_machine_emergency_restart;
291
292 /*
293 * Do not use broadcast IPIs:
294 */
295 no_broadcast = 0;
296
297 /*
298 * Override generic MP-table parsing:
299 */
300 mach_get_smp_config_quirk = visws_get_smp_config_quirk;
301 mach_find_smp_config_quirk = visws_find_smp_config_quirk;
302
303#ifdef CONFIG_X86_IO_APIC
304 /*
305 * Turn off IO-APIC detection and initialization:
306 */
307 skip_ioapic_setup = 1;
308#endif
309
310 /*
311 * Get Board rev.
312 * First, we have to initialize the 307 part to allow us access
313 * to the GPIO registers. Let's map them at 0x0fc0 which is right
314 * after the PIIX4 PM section.
315 */
316 outb_p(SIO_DEV_SEL, SIO_INDEX);
317 outb_p(SIO_GP_DEV, SIO_DATA); /* Talk to GPIO regs. */
318
319 outb_p(SIO_DEV_MSB, SIO_INDEX);
320 outb_p(SIO_GP_MSB, SIO_DATA); /* MSB of GPIO base address */
321
322 outb_p(SIO_DEV_LSB, SIO_INDEX);
323 outb_p(SIO_GP_LSB, SIO_DATA); /* LSB of GPIO base address */
324
325 outb_p(SIO_DEV_ENB, SIO_INDEX);
326 outb_p(1, SIO_DATA); /* Enable GPIO registers. */
327
328 /*
329 * Now, we have to map the power management section to write
330 * a bit which enables access to the GPIO registers.
331 * What lunatic came up with this shit?
332 */
333 outb_p(SIO_DEV_SEL, SIO_INDEX);
334 outb_p(SIO_PM_DEV, SIO_DATA); /* Talk to GPIO regs. */
335
336 outb_p(SIO_DEV_MSB, SIO_INDEX);
337 outb_p(SIO_PM_MSB, SIO_DATA); /* MSB of PM base address */
338
339 outb_p(SIO_DEV_LSB, SIO_INDEX);
340 outb_p(SIO_PM_LSB, SIO_DATA); /* LSB of PM base address */
341
342 outb_p(SIO_DEV_ENB, SIO_INDEX);
343 outb_p(1, SIO_DATA); /* Enable PM registers. */
344
345 /*
346 * Now, write the PM register which enables the GPIO registers.
347 */
348 outb_p(SIO_PM_FER2, SIO_PM_INDEX);
349 outb_p(SIO_PM_GP_EN, SIO_PM_DATA);
350
351 /*
352 * Now, initialize the GPIO registers.
353 * We want them all to be inputs which is the
354 * power on default, so let's leave them alone.
355 * So, let's just read the board rev!
356 */
357 raw = inb_p(SIO_GP_DATA1);
358 raw &= 0x7f; /* 7 bits of valid board revision ID. */
359
360 if (visws_board_type == VISWS_320) {
361 if (raw < 0x6) {
362 visws_board_rev = 4;
363 } else if (raw < 0xc) {
364 visws_board_rev = 5;
365 } else {
366 visws_board_rev = 6;
367 }
368 } else if (visws_board_type == VISWS_540) {
369 visws_board_rev = 2;
370 } else {
371 visws_board_rev = raw;
372 }
373
374 printk(KERN_INFO "Silicon Graphics Visual Workstation %s (rev %d) detected\n",
375 (visws_board_type == VISWS_320 ? "320" :
376 (visws_board_type == VISWS_540 ? "540" :
377 "unknown")), visws_board_rev);
378}
379
380#define A01234 (LI_INTA_0 | LI_INTA_1 | LI_INTA_2 | LI_INTA_3 | LI_INTA_4)
381#define BCD (LI_INTB | LI_INTC | LI_INTD)
382#define ALLDEVS (A01234 | BCD)
383
384static __init void lithium_init(void)
385{
386 set_fixmap(FIX_LI_PCIA, LI_PCI_A_PHYS);
387 set_fixmap(FIX_LI_PCIB, LI_PCI_B_PHYS);
388
389 if ((li_pcia_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
390 (li_pcia_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) {
391 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'A');
392/* panic("This machine is not SGI Visual Workstation 320/540"); */
393 }
394
395 if ((li_pcib_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
396 (li_pcib_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) {
397 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'B');
398/* panic("This machine is not SGI Visual Workstation 320/540"); */
399 }
400
401 li_pcia_write16(LI_PCI_INTEN, ALLDEVS);
402 li_pcib_write16(LI_PCI_INTEN, ALLDEVS);
403}
404
405static __init void cobalt_init(void)
406{
407 /*
408 * On normal SMP PC this is used only with SMP, but we have to
409 * use it and set it up here to start the Cobalt clock
410 */
411 set_fixmap(FIX_APIC_BASE, APIC_DEFAULT_PHYS_BASE);
412 setup_local_APIC();
413 printk(KERN_INFO "Local APIC Version %#x, ID %#x\n",
414 (unsigned int)apic_read(APIC_LVR),
415 (unsigned int)apic_read(APIC_ID));
416
417 set_fixmap(FIX_CO_CPU, CO_CPU_PHYS);
418 set_fixmap(FIX_CO_APIC, CO_APIC_PHYS);
419 printk(KERN_INFO "Cobalt Revision %#lx, APIC ID %#lx\n",
420 co_cpu_read(CO_CPU_REV), co_apic_read(CO_APIC_ID));
421
422 /* Enable Cobalt APIC being careful to NOT change the ID! */
423 co_apic_write(CO_APIC_ID, co_apic_read(CO_APIC_ID) | CO_APIC_ENABLE);
424
425 printk(KERN_INFO "Cobalt APIC enabled: ID reg %#lx\n",
426 co_apic_read(CO_APIC_ID));
427}
428
429int __init visws_trap_init_quirk(void)
430{
431 lithium_init();
432 cobalt_init();
433
434 return 1;
435}
436
437/*
438 * IRQ controller / APIC support:
439 */
440
441static DEFINE_SPINLOCK(cobalt_lock);
442
443/*
444 * Set the given Cobalt APIC Redirection Table entry to point
445 * to the given IDT vector/index.
446 */
447static inline void co_apic_set(int entry, int irq)
448{
449 co_apic_write(CO_APIC_LO(entry), CO_APIC_LEVEL | (irq + FIRST_EXTERNAL_VECTOR));
450 co_apic_write(CO_APIC_HI(entry), 0);
451}
452
453/*
454 * Cobalt (IO)-APIC functions to handle PCI devices.
455 */
456static inline int co_apic_ide0_hack(void)
457{
458 extern char visws_board_type;
459 extern char visws_board_rev;
460
461 if (visws_board_type == VISWS_320 && visws_board_rev == 5)
462 return 5;
463 return CO_APIC_IDE0;
464}
465
466static int is_co_apic(unsigned int irq)
467{
468 if (IS_CO_APIC(irq))
469 return CO_APIC(irq);
470
471 switch (irq) {
472 case 0: return CO_APIC_CPU;
473 case CO_IRQ_IDE0: return co_apic_ide0_hack();
474 case CO_IRQ_IDE1: return CO_APIC_IDE1;
475 default: return -1;
476 }
477}
478
479
480/*
481 * This is the SGI Cobalt (IO-)APIC:
482 */
483
484static void enable_cobalt_irq(unsigned int irq)
485{
486 co_apic_set(is_co_apic(irq), irq);
487}
488
489static void disable_cobalt_irq(unsigned int irq)
490{
491 int entry = is_co_apic(irq);
492
493 co_apic_write(CO_APIC_LO(entry), CO_APIC_MASK);
494 co_apic_read(CO_APIC_LO(entry));
495}
496
497/*
498 * "irq" really just serves to identify the device. Here is where we
499 * map this to the Cobalt APIC entry where it's physically wired.
500 * This is called via request_irq -> setup_irq -> irq_desc->startup()
501 */
502static unsigned int startup_cobalt_irq(unsigned int irq)
503{
504 unsigned long flags;
505
506 spin_lock_irqsave(&cobalt_lock, flags);
507 if ((irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS | IRQ_WAITING)))
508 irq_desc[irq].status &= ~(IRQ_DISABLED | IRQ_INPROGRESS | IRQ_WAITING);
509 enable_cobalt_irq(irq);
510 spin_unlock_irqrestore(&cobalt_lock, flags);
511 return 0;
512}
513
514static void ack_cobalt_irq(unsigned int irq)
515{
516 unsigned long flags;
517
518 spin_lock_irqsave(&cobalt_lock, flags);
519 disable_cobalt_irq(irq);
520 apic_write(APIC_EOI, APIC_EIO_ACK);
521 spin_unlock_irqrestore(&cobalt_lock, flags);
522}
523
524static void end_cobalt_irq(unsigned int irq)
525{
526 unsigned long flags;
527
528 spin_lock_irqsave(&cobalt_lock, flags);
529 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
530 enable_cobalt_irq(irq);
531 spin_unlock_irqrestore(&cobalt_lock, flags);
532}
533
534static struct irq_chip cobalt_irq_type = {
535 .typename = "Cobalt-APIC",
536 .startup = startup_cobalt_irq,
537 .shutdown = disable_cobalt_irq,
538 .enable = enable_cobalt_irq,
539 .disable = disable_cobalt_irq,
540 .ack = ack_cobalt_irq,
541 .end = end_cobalt_irq,
542};
543
544
545/*
546 * This is the PIIX4-based 8259 that is wired up indirectly to Cobalt
547 * -- not the manner expected by the code in i8259.c.
548 *
549 * there is a 'master' physical interrupt source that gets sent to
550 * the CPU. But in the chipset there are various 'virtual' interrupts
551 * waiting to be handled. We represent this to Linux through a 'master'
552 * interrupt controller type, and through a special virtual interrupt-
553 * controller. Device drivers only see the virtual interrupt sources.
554 */
555static unsigned int startup_piix4_master_irq(unsigned int irq)
556{
557 init_8259A(0);
558
559 return startup_cobalt_irq(irq);
560}
561
562static void end_piix4_master_irq(unsigned int irq)
563{
564 unsigned long flags;
565
566 spin_lock_irqsave(&cobalt_lock, flags);
567 enable_cobalt_irq(irq);
568 spin_unlock_irqrestore(&cobalt_lock, flags);
569}
570
571static struct irq_chip piix4_master_irq_type = {
572 .typename = "PIIX4-master",
573 .startup = startup_piix4_master_irq,
574 .ack = ack_cobalt_irq,
575 .end = end_piix4_master_irq,
576};
577
578
579static struct irq_chip piix4_virtual_irq_type = {
580 .typename = "PIIX4-virtual",
581 .shutdown = disable_8259A_irq,
582 .enable = enable_8259A_irq,
583 .disable = disable_8259A_irq,
584};
585
586
587/*
588 * PIIX4-8259 master/virtual functions to handle interrupt requests
589 * from legacy devices: floppy, parallel, serial, rtc.
590 *
591 * None of these get Cobalt APIC entries, neither do they have IDT
592 * entries. These interrupts are purely virtual and distributed from
593 * the 'master' interrupt source: CO_IRQ_8259.
594 *
595 * When the 8259 interrupts its handler figures out which of these
596 * devices is interrupting and dispatches to its handler.
597 *
598 * CAREFUL: devices see the 'virtual' interrupt only. Thus disable/
599 * enable_irq gets the right irq. This 'master' irq is never directly
600 * manipulated by any driver.
601 */
602static irqreturn_t piix4_master_intr(int irq, void *dev_id)
603{
604 int realirq;
605 irq_desc_t *desc;
606 unsigned long flags;
607
608 spin_lock_irqsave(&i8259A_lock, flags);
609
610 /* Find out what's interrupting in the PIIX4 master 8259 */
611 outb(0x0c, 0x20); /* OCW3 Poll command */
612 realirq = inb(0x20);
613
614 /*
615 * Bit 7 == 0 means invalid/spurious
616 */
617 if (unlikely(!(realirq & 0x80)))
618 goto out_unlock;
619
620 realirq &= 7;
621
622 if (unlikely(realirq == 2)) {
623 outb(0x0c, 0xa0);
624 realirq = inb(0xa0);
625
626 if (unlikely(!(realirq & 0x80)))
627 goto out_unlock;
628
629 realirq = (realirq & 7) + 8;
630 }
631
632 /* mask and ack interrupt */
633 cached_irq_mask |= 1 << realirq;
634 if (unlikely(realirq > 7)) {
635 inb(0xa1);
636 outb(cached_slave_mask, 0xa1);
637 outb(0x60 + (realirq & 7), 0xa0);
638 outb(0x60 + 2, 0x20);
639 } else {
640 inb(0x21);
641 outb(cached_master_mask, 0x21);
642 outb(0x60 + realirq, 0x20);
643 }
644
645 spin_unlock_irqrestore(&i8259A_lock, flags);
646
647 desc = irq_desc + realirq;
648
649 /*
650 * handle this 'virtual interrupt' as a Cobalt one now.
651 */
652 kstat_cpu(smp_processor_id()).irqs[realirq]++;
653
654 if (likely(desc->action != NULL))
655 handle_IRQ_event(realirq, desc->action);
656
657 if (!(desc->status & IRQ_DISABLED))
658 enable_8259A_irq(realirq);
659
660 return IRQ_HANDLED;
661
662out_unlock:
663 spin_unlock_irqrestore(&i8259A_lock, flags);
664 return IRQ_NONE;
665}
666
667static struct irqaction master_action = {
668 .handler = piix4_master_intr,
669 .name = "PIIX4-8259",
670};
671
672static struct irqaction cascade_action = {
673 .handler = no_action,
674 .name = "cascade",
675};
676
677
678void init_VISWS_APIC_irqs(void)
679{
680 int i;
681
682 for (i = 0; i < CO_IRQ_APIC0 + CO_APIC_LAST + 1; i++) {
683 irq_desc[i].status = IRQ_DISABLED;
684 irq_desc[i].action = 0;
685 irq_desc[i].depth = 1;
686
687 if (i == 0) {
688 irq_desc[i].chip = &cobalt_irq_type;
689 }
690 else if (i == CO_IRQ_IDE0) {
691 irq_desc[i].chip = &cobalt_irq_type;
692 }
693 else if (i == CO_IRQ_IDE1) {
694 irq_desc[i].chip = &cobalt_irq_type;
695 }
696 else if (i == CO_IRQ_8259) {
697 irq_desc[i].chip = &piix4_master_irq_type;
698 }
699 else if (i < CO_IRQ_APIC0) {
700 irq_desc[i].chip = &piix4_virtual_irq_type;
701 }
702 else if (IS_CO_APIC(i)) {
703 irq_desc[i].chip = &cobalt_irq_type;
704 }
705 }
706
707 setup_irq(CO_IRQ_8259, &master_action);
708 setup_irq(2, &cascade_action);
709}
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 956f38927aa7..b15346092b7b 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -151,7 +151,7 @@ static unsigned vmi_patch(u8 type, u16 clobbers, void *insns,
151 insns, ip); 151 insns, ip);
152 case PARAVIRT_PATCH(pv_cpu_ops.iret): 152 case PARAVIRT_PATCH(pv_cpu_ops.iret):
153 return patch_internal(VMI_CALL_IRET, len, insns, ip); 153 return patch_internal(VMI_CALL_IRET, len, insns, ip);
154 case PARAVIRT_PATCH(pv_cpu_ops.irq_enable_syscall_ret): 154 case PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit):
155 return patch_internal(VMI_CALL_SYSEXIT, len, insns, ip); 155 return patch_internal(VMI_CALL_SYSEXIT, len, insns, ip);
156 default: 156 default:
157 break; 157 break;
@@ -896,7 +896,7 @@ static inline int __init activate_vmi(void)
896 * the backend. They are performance critical anyway, so requiring 896 * the backend. They are performance critical anyway, so requiring
897 * a patch is not a big problem. 897 * a patch is not a big problem.
898 */ 898 */
899 pv_cpu_ops.irq_enable_syscall_ret = (void *)0xfeedbab0; 899 pv_cpu_ops.irq_enable_sysexit = (void *)0xfeedbab0;
900 pv_cpu_ops.iret = (void *)0xbadbab0; 900 pv_cpu_ops.iret = (void *)0xbadbab0;
901 901
902#ifdef CONFIG_SMP 902#ifdef CONFIG_SMP
@@ -932,7 +932,7 @@ static inline int __init activate_vmi(void)
932 pv_apic_ops.setup_secondary_clock = vmi_time_ap_init; 932 pv_apic_ops.setup_secondary_clock = vmi_time_ap_init;
933#endif 933#endif
934 pv_time_ops.sched_clock = vmi_sched_clock; 934 pv_time_ops.sched_clock = vmi_sched_clock;
935 pv_time_ops.get_cpu_khz = vmi_cpu_khz; 935 pv_time_ops.get_tsc_khz = vmi_tsc_khz;
936 936
937 /* We have true wallclock functions; disable CMOS clock sync */ 937 /* We have true wallclock functions; disable CMOS clock sync */
938 no_sync_cmos_clock = 1; 938 no_sync_cmos_clock = 1;
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index a2b030780aa9..6953859fe289 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -33,8 +33,7 @@
33#include <asm/apic.h> 33#include <asm/apic.h>
34#include <asm/timer.h> 34#include <asm/timer.h>
35#include <asm/i8253.h> 35#include <asm/i8253.h>
36 36#include <asm/irq_vectors.h>
37#include <irq_vectors.h>
38 37
39#define VMI_ONESHOT (VMI_ALARM_IS_ONESHOT | VMI_CYCLES_REAL | vmi_get_alarm_wiring()) 38#define VMI_ONESHOT (VMI_ALARM_IS_ONESHOT | VMI_CYCLES_REAL | vmi_get_alarm_wiring())
40#define VMI_PERIODIC (VMI_ALARM_IS_PERIODIC | VMI_CYCLES_REAL | vmi_get_alarm_wiring()) 39#define VMI_PERIODIC (VMI_ALARM_IS_PERIODIC | VMI_CYCLES_REAL | vmi_get_alarm_wiring())
@@ -70,8 +69,8 @@ unsigned long long vmi_sched_clock(void)
70 return cycles_2_ns(vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE)); 69 return cycles_2_ns(vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE));
71} 70}
72 71
73/* paravirt_ops.get_cpu_khz = vmi_cpu_khz */ 72/* paravirt_ops.get_tsc_khz = vmi_tsc_khz */
74unsigned long vmi_cpu_khz(void) 73unsigned long vmi_tsc_khz(void)
75{ 74{
76 unsigned long long khz; 75 unsigned long long khz;
77 khz = vmi_timer_ops.get_cycle_frequency(); 76 khz = vmi_timer_ops.get_cycle_frequency();
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index ce5ed083a1e9..cdb2363697d2 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -49,23 +49,14 @@ SECTIONS
49 _etext = .; /* End of text section */ 49 _etext = .; /* End of text section */
50 } :text = 0x9090 50 } :text = 0x9090
51 51
52 NOTES :text :note
53
52 . = ALIGN(16); /* Exception table */ 54 . = ALIGN(16); /* Exception table */
53 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { 55 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
54 __start___ex_table = .; 56 __start___ex_table = .;
55 *(__ex_table) 57 *(__ex_table)
56 __stop___ex_table = .; 58 __stop___ex_table = .;
57 } 59 } :text = 0x9090
58
59 NOTES :text :note
60
61 BUG_TABLE :text
62
63 . = ALIGN(4);
64 .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
65 __tracedata_start = .;
66 *(.tracedata)
67 __tracedata_end = .;
68 }
69 60
70 RODATA 61 RODATA
71 62
diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index fad3674b06a5..63e5c1a22e88 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -19,7 +19,7 @@ PHDRS {
19 data PT_LOAD FLAGS(7); /* RWE */ 19 data PT_LOAD FLAGS(7); /* RWE */
20 user PT_LOAD FLAGS(7); /* RWE */ 20 user PT_LOAD FLAGS(7); /* RWE */
21 data.init PT_LOAD FLAGS(7); /* RWE */ 21 data.init PT_LOAD FLAGS(7); /* RWE */
22 note PT_NOTE FLAGS(4); /* R__ */ 22 note PT_NOTE FLAGS(0); /* ___ */
23} 23}
24SECTIONS 24SECTIONS
25{ 25{
@@ -40,26 +40,17 @@ SECTIONS
40 _etext = .; /* End of text section */ 40 _etext = .; /* End of text section */
41 } :text = 0x9090 41 } :text = 0x9090
42 42
43 NOTES :text :note
44
43 . = ALIGN(16); /* Exception table */ 45 . = ALIGN(16); /* Exception table */
44 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { 46 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
45 __start___ex_table = .; 47 __start___ex_table = .;
46 *(__ex_table) 48 *(__ex_table)
47 __stop___ex_table = .; 49 __stop___ex_table = .;
48 } 50 } :text = 0x9090
49
50 NOTES :text :note
51
52 BUG_TABLE :text
53 51
54 RODATA 52 RODATA
55 53
56 . = ALIGN(4);
57 .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
58 __tracedata_start = .;
59 *(.tracedata)
60 __tracedata_end = .;
61 }
62
63 . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */ 54 . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */
64 /* Data */ 55 /* Data */
65 .data : AT(ADDR(.data) - LOAD_OFFSET) { 56 .data : AT(ADDR(.data) - LOAD_OFFSET) {
@@ -177,6 +168,7 @@ SECTIONS
177 *(.con_initcall.init) 168 *(.con_initcall.init)
178 } 169 }
179 __con_initcall_end = .; 170 __con_initcall_end = .;
171 . = ALIGN(16);
180 __x86cpuvendor_start = .; 172 __x86cpuvendor_start = .;
181 .x86cpuvendor.init : AT(ADDR(.x86cpuvendor.init) - LOAD_OFFSET) { 173 .x86cpuvendor.init : AT(ADDR(.x86cpuvendor.init) - LOAD_OFFSET) {
182 *(.x86cpuvendor.init) 174 *(.x86cpuvendor.init)
diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c
index ba8c0b75ab0a..0c029e8959c7 100644
--- a/arch/x86/kernel/vsmp_64.c
+++ b/arch/x86/kernel/vsmp_64.c
@@ -15,9 +15,12 @@
15#include <linux/init.h> 15#include <linux/init.h>
16#include <linux/pci_ids.h> 16#include <linux/pci_ids.h>
17#include <linux/pci_regs.h> 17#include <linux/pci_regs.h>
18
19#include <asm/apic.h>
18#include <asm/pci-direct.h> 20#include <asm/pci-direct.h>
19#include <asm/io.h> 21#include <asm/io.h>
20#include <asm/paravirt.h> 22#include <asm/paravirt.h>
23#include <asm/setup.h>
21 24
22#if defined CONFIG_PCI && defined CONFIG_PARAVIRT 25#if defined CONFIG_PCI && defined CONFIG_PARAVIRT
23/* 26/*
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 61efa2f7d564..0b8b6690a86d 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -42,7 +42,8 @@
42#include <asm/topology.h> 42#include <asm/topology.h>
43#include <asm/vgtod.h> 43#include <asm/vgtod.h>
44 44
45#define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr))) 45#define __vsyscall(nr) \
46 __attribute__ ((unused, __section__(".vsyscall_" #nr))) notrace
46#define __syscall_clobber "r11","cx","memory" 47#define __syscall_clobber "r11","cx","memory"
47 48
48/* 49/*
@@ -249,7 +250,7 @@ static ctl_table kernel_root_table2[] = {
249 doesn't violate that. We'll find out if it does. */ 250 doesn't violate that. We'll find out if it does. */
250static void __cpuinit vsyscall_set_cpu(int cpu) 251static void __cpuinit vsyscall_set_cpu(int cpu)
251{ 252{
252 unsigned long *d; 253 unsigned long d;
253 unsigned long node = 0; 254 unsigned long node = 0;
254#ifdef CONFIG_NUMA 255#ifdef CONFIG_NUMA
255 node = cpu_to_node(cpu); 256 node = cpu_to_node(cpu);
@@ -260,11 +261,11 @@ static void __cpuinit vsyscall_set_cpu(int cpu)
260 /* Store cpu number in limit so that it can be loaded quickly 261 /* Store cpu number in limit so that it can be loaded quickly
261 in user space in vgetcpu. 262 in user space in vgetcpu.
262 12 bits for the CPU and 8 bits for the node. */ 263 12 bits for the CPU and 8 bits for the node. */
263 d = (unsigned long *)(get_cpu_gdt_table(cpu) + GDT_ENTRY_PER_CPU); 264 d = 0x0f40000000000ULL;
264 *d = 0x0f40000000000ULL; 265 d |= cpu;
265 *d |= cpu; 266 d |= (node & 0xf) << 12;
266 *d |= (node & 0xf) << 12; 267 d |= (node >> 4) << 48;
267 *d |= (node >> 4) << 48; 268 write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_PER_CPU, &d, DESCTYPE_S);
268} 269}
269 270
270static void __cpuinit cpu_vsyscall_init(void *arg) 271static void __cpuinit cpu_vsyscall_init(void *arg)
@@ -278,7 +279,7 @@ cpu_vsyscall_notifier(struct notifier_block *n, unsigned long action, void *arg)
278{ 279{
279 long cpu = (long)arg; 280 long cpu = (long)arg;
280 if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN) 281 if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN)
281 smp_call_function_single(cpu, cpu_vsyscall_init, NULL, 0, 1); 282 smp_call_function_single(cpu, cpu_vsyscall_init, NULL, 1);
282 return NOTIFY_DONE; 283 return NOTIFY_DONE;
283} 284}
284 285
@@ -301,7 +302,7 @@ static int __init vsyscall_init(void)
301#ifdef CONFIG_SYSCTL 302#ifdef CONFIG_SYSCTL
302 register_sysctl_table(kernel_root_table2); 303 register_sysctl_table(kernel_root_table2);
303#endif 304#endif
304 on_each_cpu(cpu_vsyscall_init, NULL, 0, 1); 305 on_each_cpu(cpu_vsyscall_init, NULL, 1);
305 hotcpu_notifier(cpu_vsyscall_notifier, 0); 306 hotcpu_notifier(cpu_vsyscall_notifier, 0);
306 return 0; 307 return 0;
307} 308}
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index f6c05d0410fb..b545f371b5f5 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -2,13 +2,20 @@
2 All C exports should go in the respective C files. */ 2 All C exports should go in the respective C files. */
3 3
4#include <linux/module.h> 4#include <linux/module.h>
5#include <net/checksum.h>
6#include <linux/smp.h> 5#include <linux/smp.h>
7 6
7#include <net/checksum.h>
8
8#include <asm/processor.h> 9#include <asm/processor.h>
9#include <asm/uaccess.h>
10#include <asm/pgtable.h> 10#include <asm/pgtable.h>
11#include <asm/uaccess.h>
11#include <asm/desc.h> 12#include <asm/desc.h>
13#include <asm/ftrace.h>
14
15#ifdef CONFIG_FTRACE
16/* mcount is defined in assembly */
17EXPORT_SYMBOL(mcount);
18#endif
12 19
13EXPORT_SYMBOL(kernel_thread); 20EXPORT_SYMBOL(kernel_thread);
14 21
@@ -53,8 +60,3 @@ EXPORT_SYMBOL(init_level4_pgt);
53EXPORT_SYMBOL(load_gs_index); 60EXPORT_SYMBOL(load_gs_index);
54 61
55EXPORT_SYMBOL(_proxy_pda); 62EXPORT_SYMBOL(_proxy_pda);
56
57#ifdef CONFIG_PARAVIRT
58/* Virtualized guests may want to use it */
59EXPORT_SYMBOL_GPL(cpu_gdt_descr);
60#endif
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 7c077a9d9777..3829aa7b663f 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -200,10 +200,12 @@ int __pit_timer_fn(struct kvm_kpit_state *ps)
200 200
201 atomic_inc(&pt->pending); 201 atomic_inc(&pt->pending);
202 smp_mb__after_atomic_inc(); 202 smp_mb__after_atomic_inc();
203 /* FIXME: handle case where the guest is in guest mode */ 203 if (vcpu0) {
204 if (vcpu0 && waitqueue_active(&vcpu0->wq)) { 204 set_bit(KVM_REQ_PENDING_TIMER, &vcpu0->requests);
205 vcpu0->arch.mp_state = KVM_MP_STATE_RUNNABLE; 205 if (waitqueue_active(&vcpu0->wq)) {
206 wake_up_interruptible(&vcpu0->wq); 206 vcpu0->arch.mp_state = KVM_MP_STATE_RUNNABLE;
207 wake_up_interruptible(&vcpu0->wq);
208 }
207 } 209 }
208 210
209 pt->timer.expires = ktime_add_ns(pt->timer.expires, pt->period); 211 pt->timer.expires = ktime_add_ns(pt->timer.expires, pt->period);
@@ -237,6 +239,19 @@ static enum hrtimer_restart pit_timer_fn(struct hrtimer *data)
237 return HRTIMER_NORESTART; 239 return HRTIMER_NORESTART;
238} 240}
239 241
242void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu)
243{
244 struct kvm_pit *pit = vcpu->kvm->arch.vpit;
245 struct hrtimer *timer;
246
247 if (vcpu->vcpu_id != 0 || !pit)
248 return;
249
250 timer = &pit->pit_state.pit_timer.timer;
251 if (hrtimer_cancel(timer))
252 hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
253}
254
240static void destroy_pit_timer(struct kvm_kpit_timer *pt) 255static void destroy_pit_timer(struct kvm_kpit_timer *pt)
241{ 256{
242 pr_debug("pit: execute del timer!\n"); 257 pr_debug("pit: execute del timer!\n");
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index ce1f583459b1..76d736b5f664 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -94,3 +94,9 @@ void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
94 /* TODO: PIT, RTC etc. */ 94 /* TODO: PIT, RTC etc. */
95} 95}
96EXPORT_SYMBOL_GPL(kvm_timer_intr_post); 96EXPORT_SYMBOL_GPL(kvm_timer_intr_post);
97
98void __kvm_migrate_timers(struct kvm_vcpu *vcpu)
99{
100 __kvm_migrate_apic_timer(vcpu);
101 __kvm_migrate_pit_timer(vcpu);
102}
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 1802134b836f..2a15be2275c0 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -84,6 +84,8 @@ void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
84void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu); 84void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
85void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu); 85void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
86void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu); 86void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
87void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu);
88void __kvm_migrate_timers(struct kvm_vcpu *vcpu);
87 89
88int pit_has_pending_timer(struct kvm_vcpu *vcpu); 90int pit_has_pending_timer(struct kvm_vcpu *vcpu);
89int apic_has_pending_timer(struct kvm_vcpu *vcpu); 91int apic_has_pending_timer(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index c297c50eba63..ebc03f5ae162 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -940,6 +940,7 @@ static int __apic_timer_fn(struct kvm_lapic *apic)
940 wait_queue_head_t *q = &apic->vcpu->wq; 940 wait_queue_head_t *q = &apic->vcpu->wq;
941 941
942 atomic_inc(&apic->timer.pending); 942 atomic_inc(&apic->timer.pending);
943 set_bit(KVM_REQ_PENDING_TIMER, &apic->vcpu->requests);
943 if (waitqueue_active(q)) { 944 if (waitqueue_active(q)) {
944 apic->vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; 945 apic->vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
945 wake_up_interruptible(q); 946 wake_up_interruptible(q);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 7246b60afb96..7e7c3969f7a2 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -640,6 +640,7 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
640 rmap_remove(kvm, spte); 640 rmap_remove(kvm, spte);
641 --kvm->stat.lpages; 641 --kvm->stat.lpages;
642 set_shadow_pte(spte, shadow_trap_nonpresent_pte); 642 set_shadow_pte(spte, shadow_trap_nonpresent_pte);
643 spte = NULL;
643 write_protected = 1; 644 write_protected = 1;
644 } 645 }
645 spte = rmap_next(kvm, rmapp, spte); 646 spte = rmap_next(kvm, rmapp, spte);
@@ -658,7 +659,7 @@ static int is_empty_shadow_page(u64 *spt)
658 u64 *end; 659 u64 *end;
659 660
660 for (pos = spt, end = pos + PAGE_SIZE / sizeof(u64); pos != end; pos++) 661 for (pos = spt, end = pos + PAGE_SIZE / sizeof(u64); pos != end; pos++)
661 if (*pos != shadow_trap_nonpresent_pte) { 662 if (is_shadow_present_pte(*pos)) {
662 printk(KERN_ERR "%s: %p %llx\n", __func__, 663 printk(KERN_ERR "%s: %p %llx\n", __func__,
663 pos, *pos); 664 pos, *pos);
664 return 0; 665 return 0;
@@ -1082,10 +1083,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
1082 struct kvm_mmu_page *shadow; 1083 struct kvm_mmu_page *shadow;
1083 1084
1084 spte |= PT_WRITABLE_MASK; 1085 spte |= PT_WRITABLE_MASK;
1085 if (user_fault) {
1086 mmu_unshadow(vcpu->kvm, gfn);
1087 goto unshadowed;
1088 }
1089 1086
1090 shadow = kvm_mmu_lookup_page(vcpu->kvm, gfn); 1087 shadow = kvm_mmu_lookup_page(vcpu->kvm, gfn);
1091 if (shadow || 1088 if (shadow ||
@@ -1102,8 +1099,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
1102 } 1099 }
1103 } 1100 }
1104 1101
1105unshadowed:
1106
1107 if (pte_access & ACC_WRITE_MASK) 1102 if (pte_access & ACC_WRITE_MASK)
1108 mark_page_dirty(vcpu->kvm, gfn); 1103 mark_page_dirty(vcpu->kvm, gfn);
1109 1104
@@ -1580,11 +1575,13 @@ static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu,
1580 u64 *spte, 1575 u64 *spte,
1581 const void *new) 1576 const void *new)
1582{ 1577{
1583 if ((sp->role.level != PT_PAGE_TABLE_LEVEL) 1578 if (sp->role.level != PT_PAGE_TABLE_LEVEL) {
1584 && !vcpu->arch.update_pte.largepage) { 1579 if (!vcpu->arch.update_pte.largepage ||
1585 ++vcpu->kvm->stat.mmu_pde_zapped; 1580 sp->role.glevels == PT32_ROOT_LEVEL) {
1586 return; 1581 ++vcpu->kvm->stat.mmu_pde_zapped;
1587 } 1582 return;
1583 }
1584 }
1588 1585
1589 ++vcpu->kvm->stat.mmu_pte_updated; 1586 ++vcpu->kvm->stat.mmu_pte_updated;
1590 if (sp->role.glevels == PT32_ROOT_LEVEL) 1587 if (sp->role.glevels == PT32_ROOT_LEVEL)
@@ -1858,6 +1855,7 @@ static void free_mmu_pages(struct kvm_vcpu *vcpu)
1858 sp = container_of(vcpu->kvm->arch.active_mmu_pages.next, 1855 sp = container_of(vcpu->kvm->arch.active_mmu_pages.next,
1859 struct kvm_mmu_page, link); 1856 struct kvm_mmu_page, link);
1860 kvm_mmu_zap_page(vcpu->kvm, sp); 1857 kvm_mmu_zap_page(vcpu->kvm, sp);
1858 cond_resched();
1861 } 1859 }
1862 free_page((unsigned long)vcpu->arch.mmu.pae_root); 1860 free_page((unsigned long)vcpu->arch.mmu.pae_root);
1863} 1861}
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 156fe10288ae..934c7b619396 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -418,7 +418,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
418 418
419 /* mmio */ 419 /* mmio */
420 if (is_error_pfn(pfn)) { 420 if (is_error_pfn(pfn)) {
421 pgprintk("gfn %x is mmio\n", walker.gfn); 421 pgprintk("gfn %lx is mmio\n", walker.gfn);
422 kvm_release_pfn_clean(pfn); 422 kvm_release_pfn_clean(pfn);
423 return 1; 423 return 1;
424 } 424 }
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ab22615eee89..6b0d5fa5bab3 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -688,7 +688,7 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
688 delta = vcpu->arch.host_tsc - tsc_this; 688 delta = vcpu->arch.host_tsc - tsc_this;
689 svm->vmcb->control.tsc_offset += delta; 689 svm->vmcb->control.tsc_offset += delta;
690 vcpu->cpu = cpu; 690 vcpu->cpu = cpu;
691 kvm_migrate_apic_timer(vcpu); 691 kvm_migrate_timers(vcpu);
692 } 692 }
693 693
694 for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++) 694 for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index bfe4db11989c..10ce6ee4c491 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -335,7 +335,7 @@ static void vcpu_clear(struct vcpu_vmx *vmx)
335{ 335{
336 if (vmx->vcpu.cpu == -1) 336 if (vmx->vcpu.cpu == -1)
337 return; 337 return;
338 smp_call_function_single(vmx->vcpu.cpu, __vcpu_clear, vmx, 0, 1); 338 smp_call_function_single(vmx->vcpu.cpu, __vcpu_clear, vmx, 1);
339 vmx->launched = 0; 339 vmx->launched = 0;
340} 340}
341 341
@@ -566,7 +566,7 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
566 load_transition_efer(vmx); 566 load_transition_efer(vmx);
567} 567}
568 568
569static void vmx_load_host_state(struct vcpu_vmx *vmx) 569static void __vmx_load_host_state(struct vcpu_vmx *vmx)
570{ 570{
571 unsigned long flags; 571 unsigned long flags;
572 572
@@ -596,6 +596,13 @@ static void vmx_load_host_state(struct vcpu_vmx *vmx)
596 reload_host_efer(vmx); 596 reload_host_efer(vmx);
597} 597}
598 598
599static void vmx_load_host_state(struct vcpu_vmx *vmx)
600{
601 preempt_disable();
602 __vmx_load_host_state(vmx);
603 preempt_enable();
604}
605
599/* 606/*
600 * Switches to specified vcpu, until a matching vcpu_put(), but assumes 607 * Switches to specified vcpu, until a matching vcpu_put(), but assumes
601 * vcpu mutex is already taken. 608 * vcpu mutex is already taken.
@@ -608,7 +615,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
608 615
609 if (vcpu->cpu != cpu) { 616 if (vcpu->cpu != cpu) {
610 vcpu_clear(vmx); 617 vcpu_clear(vmx);
611 kvm_migrate_apic_timer(vcpu); 618 kvm_migrate_timers(vcpu);
612 vpid_sync_vcpu_all(vmx); 619 vpid_sync_vcpu_all(vmx);
613 } 620 }
614 621
@@ -654,7 +661,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
654 661
655static void vmx_vcpu_put(struct kvm_vcpu *vcpu) 662static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
656{ 663{
657 vmx_load_host_state(to_vmx(vcpu)); 664 __vmx_load_host_state(to_vmx(vcpu));
658} 665}
659 666
660static void vmx_fpu_activate(struct kvm_vcpu *vcpu) 667static void vmx_fpu_activate(struct kvm_vcpu *vcpu)
@@ -884,11 +891,8 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
884 switch (msr_index) { 891 switch (msr_index) {
885#ifdef CONFIG_X86_64 892#ifdef CONFIG_X86_64
886 case MSR_EFER: 893 case MSR_EFER:
894 vmx_load_host_state(vmx);
887 ret = kvm_set_msr_common(vcpu, msr_index, data); 895 ret = kvm_set_msr_common(vcpu, msr_index, data);
888 if (vmx->host_state.loaded) {
889 reload_host_efer(vmx);
890 load_transition_efer(vmx);
891 }
892 break; 896 break;
893 case MSR_FS_BASE: 897 case MSR_FS_BASE:
894 vmcs_writel(GUEST_FS_BASE, data); 898 vmcs_writel(GUEST_FS_BASE, data);
@@ -910,11 +914,10 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
910 guest_write_tsc(data); 914 guest_write_tsc(data);
911 break; 915 break;
912 default: 916 default:
917 vmx_load_host_state(vmx);
913 msr = find_msr_entry(vmx, msr_index); 918 msr = find_msr_entry(vmx, msr_index);
914 if (msr) { 919 if (msr) {
915 msr->data = data; 920 msr->data = data;
916 if (vmx->host_state.loaded)
917 load_msrs(vmx->guest_msrs, vmx->save_nmsrs);
918 break; 921 break;
919 } 922 }
920 ret = kvm_set_msr_common(vcpu, msr_index, data); 923 ret = kvm_set_msr_common(vcpu, msr_index, data);
@@ -1036,6 +1039,7 @@ static void hardware_enable(void *garbage)
1036static void hardware_disable(void *garbage) 1039static void hardware_disable(void *garbage)
1037{ 1040{
1038 asm volatile (ASM_VMX_VMXOFF : : : "cc"); 1041 asm volatile (ASM_VMX_VMXOFF : : : "cc");
1042 write_cr4(read_cr4() & ~X86_CR4_VMXE);
1039} 1043}
1040 1044
1041static __init int adjust_vmx_controls(u32 ctl_min, u32 ctl_opt, 1045static __init int adjust_vmx_controls(u32 ctl_min, u32 ctl_opt,
@@ -2964,7 +2968,7 @@ static void vmx_free_vmcs(struct kvm_vcpu *vcpu)
2964 struct vcpu_vmx *vmx = to_vmx(vcpu); 2968 struct vcpu_vmx *vmx = to_vmx(vcpu);
2965 2969
2966 if (vmx->vmcs) { 2970 if (vmx->vmcs) {
2967 on_each_cpu(__vcpu_clear, vmx, 0, 1); 2971 on_each_cpu(__vcpu_clear, vmx, 1);
2968 free_vmcs(vmx->vmcs); 2972 free_vmcs(vmx->vmcs);
2969 vmx->vmcs = NULL; 2973 vmx->vmcs = NULL;
2970 } 2974 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 21338bdb28ff..0faa2546b1cd 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -492,8 +492,8 @@ static int do_set_msr(struct kvm_vcpu *vcpu, unsigned index, u64 *data)
492static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) 492static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock)
493{ 493{
494 static int version; 494 static int version;
495 struct kvm_wall_clock wc; 495 struct pvclock_wall_clock wc;
496 struct timespec wc_ts; 496 struct timespec now, sys, boot;
497 497
498 if (!wall_clock) 498 if (!wall_clock)
499 return; 499 return;
@@ -502,10 +502,19 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock)
502 502
503 kvm_write_guest(kvm, wall_clock, &version, sizeof(version)); 503 kvm_write_guest(kvm, wall_clock, &version, sizeof(version));
504 504
505 wc_ts = current_kernel_time(); 505 /*
506 wc.wc_sec = wc_ts.tv_sec; 506 * The guest calculates current wall clock time by adding
507 wc.wc_nsec = wc_ts.tv_nsec; 507 * system time (updated by kvm_write_guest_time below) to the
508 wc.wc_version = version; 508 * wall clock specified here. guest system time equals host
509 * system time for us, thus we must fill in host boot time here.
510 */
511 now = current_kernel_time();
512 ktime_get_ts(&sys);
513 boot = ns_to_timespec(timespec_to_ns(&now) - timespec_to_ns(&sys));
514
515 wc.sec = boot.tv_sec;
516 wc.nsec = boot.tv_nsec;
517 wc.version = version;
509 518
510 kvm_write_guest(kvm, wall_clock, &wc, sizeof(wc)); 519 kvm_write_guest(kvm, wall_clock, &wc, sizeof(wc));
511 520
@@ -513,6 +522,45 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock)
513 kvm_write_guest(kvm, wall_clock, &version, sizeof(version)); 522 kvm_write_guest(kvm, wall_clock, &version, sizeof(version));
514} 523}
515 524
525static uint32_t div_frac(uint32_t dividend, uint32_t divisor)
526{
527 uint32_t quotient, remainder;
528
529 /* Don't try to replace with do_div(), this one calculates
530 * "(dividend << 32) / divisor" */
531 __asm__ ( "divl %4"
532 : "=a" (quotient), "=d" (remainder)
533 : "0" (0), "1" (dividend), "r" (divisor) );
534 return quotient;
535}
536
537static void kvm_set_time_scale(uint32_t tsc_khz, struct pvclock_vcpu_time_info *hv_clock)
538{
539 uint64_t nsecs = 1000000000LL;
540 int32_t shift = 0;
541 uint64_t tps64;
542 uint32_t tps32;
543
544 tps64 = tsc_khz * 1000LL;
545 while (tps64 > nsecs*2) {
546 tps64 >>= 1;
547 shift--;
548 }
549
550 tps32 = (uint32_t)tps64;
551 while (tps32 <= (uint32_t)nsecs) {
552 tps32 <<= 1;
553 shift++;
554 }
555
556 hv_clock->tsc_shift = shift;
557 hv_clock->tsc_to_system_mul = div_frac(nsecs, tps32);
558
559 pr_debug("%s: tsc_khz %u, tsc_shift %d, tsc_mul %u\n",
560 __FUNCTION__, tsc_khz, hv_clock->tsc_shift,
561 hv_clock->tsc_to_system_mul);
562}
563
516static void kvm_write_guest_time(struct kvm_vcpu *v) 564static void kvm_write_guest_time(struct kvm_vcpu *v)
517{ 565{
518 struct timespec ts; 566 struct timespec ts;
@@ -523,6 +571,11 @@ static void kvm_write_guest_time(struct kvm_vcpu *v)
523 if ((!vcpu->time_page)) 571 if ((!vcpu->time_page))
524 return; 572 return;
525 573
574 if (unlikely(vcpu->hv_clock_tsc_khz != tsc_khz)) {
575 kvm_set_time_scale(tsc_khz, &vcpu->hv_clock);
576 vcpu->hv_clock_tsc_khz = tsc_khz;
577 }
578
526 /* Keep irq disabled to prevent changes to the clock */ 579 /* Keep irq disabled to prevent changes to the clock */
527 local_irq_save(flags); 580 local_irq_save(flags);
528 kvm_get_msr(v, MSR_IA32_TIME_STAMP_COUNTER, 581 kvm_get_msr(v, MSR_IA32_TIME_STAMP_COUNTER,
@@ -537,14 +590,14 @@ static void kvm_write_guest_time(struct kvm_vcpu *v)
537 /* 590 /*
538 * The interface expects us to write an even number signaling that the 591 * The interface expects us to write an even number signaling that the
539 * update is finished. Since the guest won't see the intermediate 592 * update is finished. Since the guest won't see the intermediate
540 * state, we just write "2" at the end 593 * state, we just increase by 2 at the end.
541 */ 594 */
542 vcpu->hv_clock.version = 2; 595 vcpu->hv_clock.version += 2;
543 596
544 shared_kaddr = kmap_atomic(vcpu->time_page, KM_USER0); 597 shared_kaddr = kmap_atomic(vcpu->time_page, KM_USER0);
545 598
546 memcpy(shared_kaddr + vcpu->time_offset, &vcpu->hv_clock, 599 memcpy(shared_kaddr + vcpu->time_offset, &vcpu->hv_clock,
547 sizeof(vcpu->hv_clock)); 600 sizeof(vcpu->hv_clock));
548 601
549 kunmap_atomic(shared_kaddr, KM_USER0); 602 kunmap_atomic(shared_kaddr, KM_USER0);
550 603
@@ -599,10 +652,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
599 /* ...but clean it before doing the actual write */ 652 /* ...but clean it before doing the actual write */
600 vcpu->arch.time_offset = data & ~(PAGE_MASK | 1); 653 vcpu->arch.time_offset = data & ~(PAGE_MASK | 1);
601 654
602 vcpu->arch.hv_clock.tsc_to_system_mul =
603 clocksource_khz2mult(tsc_khz, 22);
604 vcpu->arch.hv_clock.tsc_shift = 22;
605
606 down_read(&current->mm->mmap_sem); 655 down_read(&current->mm->mmap_sem);
607 vcpu->arch.time_page = 656 vcpu->arch.time_page =
608 gfn_to_page(vcpu->kvm, data >> PAGE_SHIFT); 657 gfn_to_page(vcpu->kvm, data >> PAGE_SHIFT);
@@ -2758,7 +2807,9 @@ again:
2758 2807
2759 if (vcpu->requests) { 2808 if (vcpu->requests) {
2760 if (test_and_clear_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests)) 2809 if (test_and_clear_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests))
2761 __kvm_migrate_apic_timer(vcpu); 2810 __kvm_migrate_timers(vcpu);
2811 if (test_and_clear_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests))
2812 kvm_x86_ops->tlb_flush(vcpu);
2762 if (test_and_clear_bit(KVM_REQ_REPORT_TPR_ACCESS, 2813 if (test_and_clear_bit(KVM_REQ_REPORT_TPR_ACCESS,
2763 &vcpu->requests)) { 2814 &vcpu->requests)) {
2764 kvm_run->exit_reason = KVM_EXIT_TPR_ACCESS; 2815 kvm_run->exit_reason = KVM_EXIT_TPR_ACCESS;
@@ -2772,6 +2823,7 @@ again:
2772 } 2823 }
2773 } 2824 }
2774 2825
2826 clear_bit(KVM_REQ_PENDING_TIMER, &vcpu->requests);
2775 kvm_inject_pending_timer_irqs(vcpu); 2827 kvm_inject_pending_timer_irqs(vcpu);
2776 2828
2777 preempt_disable(); 2829 preempt_disable();
@@ -2781,21 +2833,13 @@ again:
2781 2833
2782 local_irq_disable(); 2834 local_irq_disable();
2783 2835
2784 if (need_resched()) { 2836 if (vcpu->requests || need_resched()) {
2785 local_irq_enable(); 2837 local_irq_enable();
2786 preempt_enable(); 2838 preempt_enable();
2787 r = 1; 2839 r = 1;
2788 goto out; 2840 goto out;
2789 } 2841 }
2790 2842
2791 if (vcpu->requests)
2792 if (test_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests)) {
2793 local_irq_enable();
2794 preempt_enable();
2795 r = 1;
2796 goto out;
2797 }
2798
2799 if (signal_pending(current)) { 2843 if (signal_pending(current)) {
2800 local_irq_enable(); 2844 local_irq_enable();
2801 preempt_enable(); 2845 preempt_enable();
@@ -2825,9 +2869,6 @@ again:
2825 2869
2826 kvm_guest_enter(); 2870 kvm_guest_enter();
2827 2871
2828 if (vcpu->requests)
2829 if (test_and_clear_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests))
2830 kvm_x86_ops->tlb_flush(vcpu);
2831 2872
2832 KVMTRACE_0D(VMENTRY, vcpu, entryexit); 2873 KVMTRACE_0D(VMENTRY, vcpu, entryexit);
2833 kvm_x86_ops->run(vcpu, kvm_run); 2874 kvm_x86_ops->run(vcpu, kvm_run);
@@ -4003,6 +4044,6 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
4003 * So need not to call smp_call_function_single() in that case. 4044 * So need not to call smp_call_function_single() in that case.
4004 */ 4045 */
4005 if (vcpu->guest_mode && vcpu->cpu != cpu) 4046 if (vcpu->guest_mode && vcpu->cpu != cpu)
4006 smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0); 4047 smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0);
4007 put_cpu(); 4048 put_cpu();
4008} 4049}
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 8a96320ab071..932f216d890c 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -1727,7 +1727,8 @@ twobyte_insn:
1727 if (rc) 1727 if (rc)
1728 goto done; 1728 goto done;
1729 1729
1730 kvm_emulate_hypercall(ctxt->vcpu); 1730 /* Let the processor re-execute the fixed hypercall */
1731 c->eip = ctxt->vcpu->arch.rip;
1731 /* Disable writeback. */ 1732 /* Disable writeback. */
1732 c->dst.type = OP_NONE; 1733 c->dst.type = OP_NONE;
1733 break; 1734 break;
diff --git a/arch/x86/lguest/Kconfig b/arch/x86/lguest/Kconfig
index 964dfa36d367..c70e12b1a637 100644
--- a/arch/x86/lguest/Kconfig
+++ b/arch/x86/lguest/Kconfig
@@ -3,7 +3,7 @@ config LGUEST_GUEST
3 select PARAVIRT 3 select PARAVIRT
4 depends on X86_32 4 depends on X86_32
5 depends on !X86_PAE 5 depends on !X86_PAE
6 depends on !(X86_VISWS || X86_VOYAGER) 6 depends on !X86_VOYAGER
7 select VIRTIO 7 select VIRTIO
8 select VIRTIO_RING 8 select VIRTIO_RING
9 select VIRTIO_CONSOLE 9 select VIRTIO_CONSOLE
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index af65b2da3ba0..50dad44fb542 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -582,8 +582,9 @@ static void __init lguest_init_IRQ(void)
582 int vector = FIRST_EXTERNAL_VECTOR + i; 582 int vector = FIRST_EXTERNAL_VECTOR + i;
583 if (vector != SYSCALL_VECTOR) { 583 if (vector != SYSCALL_VECTOR) {
584 set_intr_gate(vector, interrupt[i]); 584 set_intr_gate(vector, interrupt[i]);
585 set_irq_chip_and_handler(i, &lguest_irq_controller, 585 set_irq_chip_and_handler_name(i, &lguest_irq_controller,
586 handle_level_irq); 586 handle_level_irq,
587 "level");
587 } 588 }
588 } 589 }
589 /* This call is required to set up for 4k stacks, where we have 590 /* This call is required to set up for 4k stacks, where we have
@@ -606,7 +607,7 @@ static unsigned long lguest_get_wallclock(void)
606 * what speed it runs at, or 0 if it's unusable as a reliable clock source. 607 * what speed it runs at, or 0 if it's unusable as a reliable clock source.
607 * This matches what we want here: if we return 0 from this function, the x86 608 * This matches what we want here: if we return 0 from this function, the x86
608 * TSC clock will give up and not register itself. */ 609 * TSC clock will give up and not register itself. */
609static unsigned long lguest_cpu_khz(void) 610static unsigned long lguest_tsc_khz(void)
610{ 611{
611 return lguest_data.tsc_khz; 612 return lguest_data.tsc_khz;
612} 613}
@@ -834,7 +835,7 @@ static __init char *lguest_memory_setup(void)
834 835
835 /* The Linux bootloader header contains an "e820" memory map: the 836 /* The Linux bootloader header contains an "e820" memory map: the
836 * Launcher populated the first entry with our memory limit. */ 837 * Launcher populated the first entry with our memory limit. */
837 add_memory_region(boot_params.e820_map[0].addr, 838 e820_add_region(boot_params.e820_map[0].addr,
838 boot_params.e820_map[0].size, 839 boot_params.e820_map[0].size,
839 boot_params.e820_map[0].type); 840 boot_params.e820_map[0].type);
840 841
@@ -997,7 +998,7 @@ __init void lguest_init(void)
997 /* time operations */ 998 /* time operations */
998 pv_time_ops.get_wallclock = lguest_get_wallclock; 999 pv_time_ops.get_wallclock = lguest_get_wallclock;
999 pv_time_ops.time_init = lguest_time_init; 1000 pv_time_ops.time_init = lguest_time_init;
1000 pv_time_ops.get_cpu_khz = lguest_cpu_khz; 1001 pv_time_ops.get_tsc_khz = lguest_tsc_khz;
1001 1002
1002 /* Now is a good time to look at the implementations of these functions 1003 /* Now is a good time to look at the implementations of these functions
1003 * before returning to the rest of lguest_init(). */ 1004 * before returning to the rest of lguest_init(). */
@@ -1011,6 +1012,7 @@ __init void lguest_init(void)
1011 * clobbered. The Launcher places our initial pagetables somewhere at 1012 * clobbered. The Launcher places our initial pagetables somewhere at
1012 * the top of our physical memory, so we don't need extra space: set 1013 * the top of our physical memory, so we don't need extra space: set
1013 * init_pg_tables_end to the end of the kernel. */ 1014 * init_pg_tables_end to the end of the kernel. */
1015 init_pg_tables_start = __pa(pg0);
1014 init_pg_tables_end = __pa(pg0); 1016 init_pg_tables_end = __pa(pg0);
1015 1017
1016 /* Load the %fs segment register (the per-cpu segment register) with 1018 /* Load the %fs segment register (the per-cpu segment register) with
@@ -1064,9 +1066,9 @@ __init void lguest_init(void)
1064 pm_power_off = lguest_power_off; 1066 pm_power_off = lguest_power_off;
1065 machine_ops.restart = lguest_restart; 1067 machine_ops.restart = lguest_restart;
1066 1068
1067 /* Now we're set up, call start_kernel() in init/main.c and we proceed 1069 /* Now we're set up, call i386_start_kernel() in head32.c and we proceed
1068 * to boot as normal. It never returns. */ 1070 * to boot as normal. It never returns. */
1069 start_kernel(); 1071 i386_start_kernel();
1070} 1072}
1071/* 1073/*
1072 * This marks the end of stage II of our journey, The Guest. 1074 * This marks the end of stage II of our journey, The Guest.
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 76f60f52a885..aa3fa4119424 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -4,8 +4,9 @@
4 4
5obj-$(CONFIG_SMP) := msr-on-cpu.o 5obj-$(CONFIG_SMP) := msr-on-cpu.o
6 6
7lib-y := delay_$(BITS).o 7lib-y := delay.o
8lib-y += usercopy_$(BITS).o getuser_$(BITS).o putuser_$(BITS).o 8lib-y += thunk_$(BITS).o
9lib-y += usercopy_$(BITS).o getuser.o putuser.o
9lib-y += memcpy_$(BITS).o 10lib-y += memcpy_$(BITS).o
10 11
11ifeq ($(CONFIG_X86_32),y) 12ifeq ($(CONFIG_X86_32),y)
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index 70bebd310408..dfdf428975c0 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -1,8 +1,10 @@
1/* Copyright 2002 Andi Kleen, SuSE Labs. 1/*
2 * Copyright 2008 Vitaly Mayatskikh <vmayatsk@redhat.com>
3 * Copyright 2002 Andi Kleen, SuSE Labs.
2 * Subject to the GNU Public License v2. 4 * Subject to the GNU Public License v2.
3 * 5 *
4 * Functions to copy from and to user space. 6 * Functions to copy from and to user space.
5 */ 7 */
6 8
7#include <linux/linkage.h> 9#include <linux/linkage.h>
8#include <asm/dwarf2.h> 10#include <asm/dwarf2.h>
@@ -20,60 +22,88 @@
20 .long \orig-1f /* by default jump to orig */ 22 .long \orig-1f /* by default jump to orig */
211: 231:
22 .section .altinstr_replacement,"ax" 24 .section .altinstr_replacement,"ax"
232: .byte 0xe9 /* near jump with 32bit immediate */ 252: .byte 0xe9 /* near jump with 32bit immediate */
24 .long \alt-1b /* offset */ /* or alternatively to alt */ 26 .long \alt-1b /* offset */ /* or alternatively to alt */
25 .previous 27 .previous
26 .section .altinstructions,"a" 28 .section .altinstructions,"a"
27 .align 8 29 .align 8
28 .quad 0b 30 .quad 0b
29 .quad 2b 31 .quad 2b
30 .byte \feature /* when feature is set */ 32 .byte \feature /* when feature is set */
31 .byte 5 33 .byte 5
32 .byte 5 34 .byte 5
33 .previous 35 .previous
34 .endm 36 .endm
35 37
36/* Standard copy_to_user with segment limit checking */ 38 .macro ALIGN_DESTINATION
39#ifdef FIX_ALIGNMENT
40 /* check for bad alignment of destination */
41 movl %edi,%ecx
42 andl $7,%ecx
43 jz 102f /* already aligned */
44 subl $8,%ecx
45 negl %ecx
46 subl %ecx,%edx
47100: movb (%rsi),%al
48101: movb %al,(%rdi)
49 incq %rsi
50 incq %rdi
51 decl %ecx
52 jnz 100b
53102:
54 .section .fixup,"ax"
55103: addl %r8d,%edx /* ecx is zerorest also */
56 jmp copy_user_handle_tail
57 .previous
58
59 .section __ex_table,"a"
60 .align 8
61 .quad 100b,103b
62 .quad 101b,103b
63 .previous
64#endif
65 .endm
66
67/* Standard copy_to_user with segment limit checking */
37ENTRY(copy_to_user) 68ENTRY(copy_to_user)
38 CFI_STARTPROC 69 CFI_STARTPROC
39 GET_THREAD_INFO(%rax) 70 GET_THREAD_INFO(%rax)
40 movq %rdi,%rcx 71 movq %rdi,%rcx
41 addq %rdx,%rcx 72 addq %rdx,%rcx
42 jc bad_to_user 73 jc bad_to_user
43 cmpq threadinfo_addr_limit(%rax),%rcx 74 cmpq TI_addr_limit(%rax),%rcx
44 jae bad_to_user 75 jae bad_to_user
45 xorl %eax,%eax /* clear zero flag */
46 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string 76 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string
47 CFI_ENDPROC 77 CFI_ENDPROC
48 78
49ENTRY(copy_user_generic) 79/* Standard copy_from_user with segment limit checking */
80ENTRY(copy_from_user)
50 CFI_STARTPROC 81 CFI_STARTPROC
51 movl $1,%ecx /* set zero flag */ 82 GET_THREAD_INFO(%rax)
83 movq %rsi,%rcx
84 addq %rdx,%rcx
85 jc bad_from_user
86 cmpq TI_addr_limit(%rax),%rcx
87 jae bad_from_user
52 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string 88 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string
53 CFI_ENDPROC 89 CFI_ENDPROC
90ENDPROC(copy_from_user)
54 91
55ENTRY(__copy_from_user_inatomic) 92ENTRY(copy_user_generic)
56 CFI_STARTPROC 93 CFI_STARTPROC
57 xorl %ecx,%ecx /* clear zero flag */
58 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string 94 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string
59 CFI_ENDPROC 95 CFI_ENDPROC
96ENDPROC(copy_user_generic)
60 97
61/* Standard copy_from_user with segment limit checking */ 98ENTRY(__copy_from_user_inatomic)
62ENTRY(copy_from_user)
63 CFI_STARTPROC 99 CFI_STARTPROC
64 GET_THREAD_INFO(%rax)
65 movq %rsi,%rcx
66 addq %rdx,%rcx
67 jc bad_from_user
68 cmpq threadinfo_addr_limit(%rax),%rcx
69 jae bad_from_user
70 movl $1,%ecx /* set zero flag */
71 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string 100 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string
72 CFI_ENDPROC 101 CFI_ENDPROC
73ENDPROC(copy_from_user) 102ENDPROC(__copy_from_user_inatomic)
74 103
75 .section .fixup,"ax" 104 .section .fixup,"ax"
76 /* must zero dest */ 105 /* must zero dest */
106ENTRY(bad_from_user)
77bad_from_user: 107bad_from_user:
78 CFI_STARTPROC 108 CFI_STARTPROC
79 movl %edx,%ecx 109 movl %edx,%ecx
@@ -81,274 +111,158 @@ bad_from_user:
81 rep 111 rep
82 stosb 112 stosb
83bad_to_user: 113bad_to_user:
84 movl %edx,%eax 114 movl %edx,%eax
85 ret 115 ret
86 CFI_ENDPROC 116 CFI_ENDPROC
87END(bad_from_user) 117ENDPROC(bad_from_user)
88 .previous 118 .previous
89 119
90
91/* 120/*
92 * copy_user_generic_unrolled - memory copy with exception handling. 121 * copy_user_generic_unrolled - memory copy with exception handling.
93 * This version is for CPUs like P4 that don't have efficient micro code for rep movsq 122 * This version is for CPUs like P4 that don't have efficient micro
94 * 123 * code for rep movsq
95 * Input: 124 *
125 * Input:
96 * rdi destination 126 * rdi destination
97 * rsi source 127 * rsi source
98 * rdx count 128 * rdx count
99 * ecx zero flag -- if true zero destination on error
100 * 129 *
101 * Output: 130 * Output:
102 * eax uncopied bytes or 0 if successful. 131 * eax uncopied bytes or 0 if successfull.
103 */ 132 */
104ENTRY(copy_user_generic_unrolled) 133ENTRY(copy_user_generic_unrolled)
105 CFI_STARTPROC 134 CFI_STARTPROC
106 pushq %rbx 135 cmpl $8,%edx
107 CFI_ADJUST_CFA_OFFSET 8 136 jb 20f /* less then 8 bytes, go to byte copy loop */
108 CFI_REL_OFFSET rbx, 0 137 ALIGN_DESTINATION
109 pushq %rcx 138 movl %edx,%ecx
110 CFI_ADJUST_CFA_OFFSET 8 139 andl $63,%edx
111 CFI_REL_OFFSET rcx, 0 140 shrl $6,%ecx
112 xorl %eax,%eax /*zero for the exception handler */ 141 jz 17f
113 1421: movq (%rsi),%r8
114#ifdef FIX_ALIGNMENT 1432: movq 1*8(%rsi),%r9
115 /* check for bad alignment of destination */ 1443: movq 2*8(%rsi),%r10
116 movl %edi,%ecx 1454: movq 3*8(%rsi),%r11
117 andl $7,%ecx 1465: movq %r8,(%rdi)
118 jnz .Lbad_alignment 1476: movq %r9,1*8(%rdi)
119.Lafter_bad_alignment: 1487: movq %r10,2*8(%rdi)
120#endif 1498: movq %r11,3*8(%rdi)
121 1509: movq 4*8(%rsi),%r8
122 movq %rdx,%rcx 15110: movq 5*8(%rsi),%r9
123 15211: movq 6*8(%rsi),%r10
124 movl $64,%ebx 15312: movq 7*8(%rsi),%r11
125 shrq $6,%rdx 15413: movq %r8,4*8(%rdi)
126 decq %rdx 15514: movq %r9,5*8(%rdi)
127 js .Lhandle_tail 15615: movq %r10,6*8(%rdi)
128 15716: movq %r11,7*8(%rdi)
129 .p2align 4
130.Lloop:
131.Ls1: movq (%rsi),%r11
132.Ls2: movq 1*8(%rsi),%r8
133.Ls3: movq 2*8(%rsi),%r9
134.Ls4: movq 3*8(%rsi),%r10
135.Ld1: movq %r11,(%rdi)
136.Ld2: movq %r8,1*8(%rdi)
137.Ld3: movq %r9,2*8(%rdi)
138.Ld4: movq %r10,3*8(%rdi)
139
140.Ls5: movq 4*8(%rsi),%r11
141.Ls6: movq 5*8(%rsi),%r8
142.Ls7: movq 6*8(%rsi),%r9
143.Ls8: movq 7*8(%rsi),%r10
144.Ld5: movq %r11,4*8(%rdi)
145.Ld6: movq %r8,5*8(%rdi)
146.Ld7: movq %r9,6*8(%rdi)
147.Ld8: movq %r10,7*8(%rdi)
148
149 decq %rdx
150
151 leaq 64(%rsi),%rsi 158 leaq 64(%rsi),%rsi
152 leaq 64(%rdi),%rdi 159 leaq 64(%rdi),%rdi
153
154 jns .Lloop
155
156 .p2align 4
157.Lhandle_tail:
158 movl %ecx,%edx
159 andl $63,%ecx
160 shrl $3,%ecx
161 jz .Lhandle_7
162 movl $8,%ebx
163 .p2align 4
164.Lloop_8:
165.Ls9: movq (%rsi),%r8
166.Ld9: movq %r8,(%rdi)
167 decl %ecx 160 decl %ecx
168 leaq 8(%rdi),%rdi 161 jnz 1b
16217: movl %edx,%ecx
163 andl $7,%edx
164 shrl $3,%ecx
165 jz 20f
16618: movq (%rsi),%r8
16719: movq %r8,(%rdi)
169 leaq 8(%rsi),%rsi 168 leaq 8(%rsi),%rsi
170 jnz .Lloop_8 169 leaq 8(%rdi),%rdi
171 170 decl %ecx
172.Lhandle_7: 171 jnz 18b
17220: andl %edx,%edx
173 jz 23f
173 movl %edx,%ecx 174 movl %edx,%ecx
174 andl $7,%ecx 17521: movb (%rsi),%al
175 jz .Lende 17622: movb %al,(%rdi)
176 .p2align 4
177.Lloop_1:
178.Ls10: movb (%rsi),%bl
179.Ld10: movb %bl,(%rdi)
180 incq %rdi
181 incq %rsi 177 incq %rsi
178 incq %rdi
182 decl %ecx 179 decl %ecx
183 jnz .Lloop_1 180 jnz 21b
184 18123: xor %eax,%eax
185 CFI_REMEMBER_STATE
186.Lende:
187 popq %rcx
188 CFI_ADJUST_CFA_OFFSET -8
189 CFI_RESTORE rcx
190 popq %rbx
191 CFI_ADJUST_CFA_OFFSET -8
192 CFI_RESTORE rbx
193 ret 182 ret
194 CFI_RESTORE_STATE
195 183
196#ifdef FIX_ALIGNMENT 184 .section .fixup,"ax"
197 /* align destination */ 18530: shll $6,%ecx
198 .p2align 4 186 addl %ecx,%edx
199.Lbad_alignment: 187 jmp 60f
200 movl $8,%r9d 18840: lea (%rdx,%rcx,8),%rdx
201 subl %ecx,%r9d 189 jmp 60f
202 movl %r9d,%ecx 19050: movl %ecx,%edx
203 cmpq %r9,%rdx 19160: jmp copy_user_handle_tail /* ecx is zerorest also */
204 jz .Lhandle_7 192 .previous
205 js .Lhandle_7
206.Lalign_1:
207.Ls11: movb (%rsi),%bl
208.Ld11: movb %bl,(%rdi)
209 incq %rsi
210 incq %rdi
211 decl %ecx
212 jnz .Lalign_1
213 subq %r9,%rdx
214 jmp .Lafter_bad_alignment
215#endif
216 193
217 /* table sorted by exception address */
218 .section __ex_table,"a" 194 .section __ex_table,"a"
219 .align 8 195 .align 8
220 .quad .Ls1,.Ls1e 196 .quad 1b,30b
221 .quad .Ls2,.Ls2e 197 .quad 2b,30b
222 .quad .Ls3,.Ls3e 198 .quad 3b,30b
223 .quad .Ls4,.Ls4e 199 .quad 4b,30b
224 .quad .Ld1,.Ls1e 200 .quad 5b,30b
225 .quad .Ld2,.Ls2e 201 .quad 6b,30b
226 .quad .Ld3,.Ls3e 202 .quad 7b,30b
227 .quad .Ld4,.Ls4e 203 .quad 8b,30b
228 .quad .Ls5,.Ls5e 204 .quad 9b,30b
229 .quad .Ls6,.Ls6e 205 .quad 10b,30b
230 .quad .Ls7,.Ls7e 206 .quad 11b,30b
231 .quad .Ls8,.Ls8e 207 .quad 12b,30b
232 .quad .Ld5,.Ls5e 208 .quad 13b,30b
233 .quad .Ld6,.Ls6e 209 .quad 14b,30b
234 .quad .Ld7,.Ls7e 210 .quad 15b,30b
235 .quad .Ld8,.Ls8e 211 .quad 16b,30b
236 .quad .Ls9,.Le_quad 212 .quad 18b,40b
237 .quad .Ld9,.Le_quad 213 .quad 19b,40b
238 .quad .Ls10,.Le_byte 214 .quad 21b,50b
239 .quad .Ld10,.Le_byte 215 .quad 22b,50b
240#ifdef FIX_ALIGNMENT
241 .quad .Ls11,.Lzero_rest
242 .quad .Ld11,.Lzero_rest
243#endif
244 .quad .Le5,.Le_zero
245 .previous 216 .previous
246
247 /* compute 64-offset for main loop. 8 bytes accuracy with error on the
248 pessimistic side. this is gross. it would be better to fix the
249 interface. */
250 /* eax: zero, ebx: 64 */
251.Ls1e: addl $8,%eax
252.Ls2e: addl $8,%eax
253.Ls3e: addl $8,%eax
254.Ls4e: addl $8,%eax
255.Ls5e: addl $8,%eax
256.Ls6e: addl $8,%eax
257.Ls7e: addl $8,%eax
258.Ls8e: addl $8,%eax
259 addq %rbx,%rdi /* +64 */
260 subq %rax,%rdi /* correct destination with computed offset */
261
262 shlq $6,%rdx /* loop counter * 64 (stride length) */
263 addq %rax,%rdx /* add offset to loopcnt */
264 andl $63,%ecx /* remaining bytes */
265 addq %rcx,%rdx /* add them */
266 jmp .Lzero_rest
267
268 /* exception on quad word loop in tail handling */
269 /* ecx: loopcnt/8, %edx: length, rdi: correct */
270.Le_quad:
271 shll $3,%ecx
272 andl $7,%edx
273 addl %ecx,%edx
274 /* edx: bytes to zero, rdi: dest, eax:zero */
275.Lzero_rest:
276 cmpl $0,(%rsp)
277 jz .Le_zero
278 movq %rdx,%rcx
279.Le_byte:
280 xorl %eax,%eax
281.Le5: rep
282 stosb
283 /* when there is another exception while zeroing the rest just return */
284.Le_zero:
285 movq %rdx,%rax
286 jmp .Lende
287 CFI_ENDPROC 217 CFI_ENDPROC
288ENDPROC(copy_user_generic) 218ENDPROC(copy_user_generic_unrolled)
289 219
290 220/* Some CPUs run faster using the string copy instructions.
291 /* Some CPUs run faster using the string copy instructions. 221 * This is also a lot simpler. Use them when possible.
292 This is also a lot simpler. Use them when possible. 222 *
293 Patch in jmps to this code instead of copying it fully 223 * Only 4GB of copy is supported. This shouldn't be a problem
294 to avoid unwanted aliasing in the exception tables. */ 224 * because the kernel normally only writes from/to page sized chunks
295 225 * even if user space passed a longer buffer.
296 /* rdi destination 226 * And more would be dangerous because both Intel and AMD have
297 * rsi source 227 * errata with rep movsq > 4GB. If someone feels the need to fix
298 * rdx count 228 * this please consider this.
299 * ecx zero flag 229 *
300 * 230 * Input:
301 * Output: 231 * rdi destination
302 * eax uncopied bytes or 0 if successfull. 232 * rsi source
303 * 233 * rdx count
304 * Only 4GB of copy is supported. This shouldn't be a problem 234 *
305 * because the kernel normally only writes from/to page sized chunks 235 * Output:
306 * even if user space passed a longer buffer. 236 * eax uncopied bytes or 0 if successful.
307 * And more would be dangerous because both Intel and AMD have 237 */
308 * errata with rep movsq > 4GB. If someone feels the need to fix
309 * this please consider this.
310 */
311ENTRY(copy_user_generic_string) 238ENTRY(copy_user_generic_string)
312 CFI_STARTPROC 239 CFI_STARTPROC
313 movl %ecx,%r8d /* save zero flag */ 240 andl %edx,%edx
241 jz 4f
242 cmpl $8,%edx
243 jb 2f /* less than 8 bytes, go to byte copy loop */
244 ALIGN_DESTINATION
314 movl %edx,%ecx 245 movl %edx,%ecx
315 shrl $3,%ecx 246 shrl $3,%ecx
316 andl $7,%edx 247 andl $7,%edx
317 jz 10f 2481: rep
3181: rep
319 movsq
320 movl %edx,%ecx
3212: rep
322 movsb
3239: movl %ecx,%eax
324 ret
325
326 /* multiple of 8 byte */
32710: rep
328 movsq 249 movsq
329 xor %eax,%eax 2502: movl %edx,%ecx
2513: rep
252 movsb
2534: xorl %eax,%eax
330 ret 254 ret
331 255
332 /* exception handling */ 256 .section .fixup,"ax"
3333: lea (%rdx,%rcx,8),%rax /* exception on quad loop */ 25711: lea (%rdx,%rcx,8),%rcx
334 jmp 6f 25812: movl %ecx,%edx /* ecx is zerorest also */
3355: movl %ecx,%eax /* exception on byte loop */ 259 jmp copy_user_handle_tail
336 /* eax: left over bytes */ 260 .previous
3376: testl %r8d,%r8d /* zero flag set? */
338 jz 7f
339 movl %eax,%ecx /* initialize x86 loop counter */
340 push %rax
341 xorl %eax,%eax
3428: rep
343 stosb /* zero the rest */
34411: pop %rax
3457: ret
346 CFI_ENDPROC
347END(copy_user_generic_c)
348 261
349 .section __ex_table,"a" 262 .section __ex_table,"a"
350 .quad 1b,3b 263 .align 8
351 .quad 2b,5b 264 .quad 1b,11b
352 .quad 8b,11b 265 .quad 3b,12b
353 .quad 10b,3b
354 .previous 266 .previous
267 CFI_ENDPROC
268ENDPROC(copy_user_generic_string)
diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
index 5196762b3b0e..40e0e309d27e 100644
--- a/arch/x86/lib/copy_user_nocache_64.S
+++ b/arch/x86/lib/copy_user_nocache_64.S
@@ -1,4 +1,6 @@
1/* Copyright 2002 Andi Kleen, SuSE Labs. 1/*
2 * Copyright 2008 Vitaly Mayatskikh <vmayatsk@redhat.com>
3 * Copyright 2002 Andi Kleen, SuSE Labs.
2 * Subject to the GNU Public License v2. 4 * Subject to the GNU Public License v2.
3 * 5 *
4 * Functions to copy from and to user space. 6 * Functions to copy from and to user space.
@@ -12,207 +14,125 @@
12#include <asm/current.h> 14#include <asm/current.h>
13#include <asm/asm-offsets.h> 15#include <asm/asm-offsets.h>
14#include <asm/thread_info.h> 16#include <asm/thread_info.h>
15#include <asm/cpufeature.h>
16
17/*
18 * copy_user_nocache - Uncached memory copy with exception handling
19 * This will force destination/source out of cache for more performance.
20 *
21 * Input:
22 * rdi destination
23 * rsi source
24 * rdx count
25 * rcx zero flag when 1 zero on exception
26 *
27 * Output:
28 * eax uncopied bytes or 0 if successful.
29 */
30ENTRY(__copy_user_nocache)
31 CFI_STARTPROC
32 pushq %rbx
33 CFI_ADJUST_CFA_OFFSET 8
34 CFI_REL_OFFSET rbx, 0
35 pushq %rcx /* save zero flag */
36 CFI_ADJUST_CFA_OFFSET 8
37 CFI_REL_OFFSET rcx, 0
38
39 xorl %eax,%eax /* zero for the exception handler */
40 17
18 .macro ALIGN_DESTINATION
41#ifdef FIX_ALIGNMENT 19#ifdef FIX_ALIGNMENT
42 /* check for bad alignment of destination */ 20 /* check for bad alignment of destination */
43 movl %edi,%ecx 21 movl %edi,%ecx
44 andl $7,%ecx 22 andl $7,%ecx
45 jnz .Lbad_alignment 23 jz 102f /* already aligned */
46.Lafter_bad_alignment: 24 subl $8,%ecx
47#endif 25 negl %ecx
48 26 subl %ecx,%edx
49 movq %rdx,%rcx 27100: movb (%rsi),%al
50 28101: movb %al,(%rdi)
51 movl $64,%ebx 29 incq %rsi
52 shrq $6,%rdx 30 incq %rdi
53 decq %rdx 31 decl %ecx
54 js .Lhandle_tail 32 jnz 100b
55 33102:
56 .p2align 4 34 .section .fixup,"ax"
57.Lloop: 35103: addl %r8d,%edx /* ecx is zerorest also */
58.Ls1: movq (%rsi),%r11 36 jmp copy_user_handle_tail
59.Ls2: movq 1*8(%rsi),%r8 37 .previous
60.Ls3: movq 2*8(%rsi),%r9
61.Ls4: movq 3*8(%rsi),%r10
62.Ld1: movnti %r11,(%rdi)
63.Ld2: movnti %r8,1*8(%rdi)
64.Ld3: movnti %r9,2*8(%rdi)
65.Ld4: movnti %r10,3*8(%rdi)
66
67.Ls5: movq 4*8(%rsi),%r11
68.Ls6: movq 5*8(%rsi),%r8
69.Ls7: movq 6*8(%rsi),%r9
70.Ls8: movq 7*8(%rsi),%r10
71.Ld5: movnti %r11,4*8(%rdi)
72.Ld6: movnti %r8,5*8(%rdi)
73.Ld7: movnti %r9,6*8(%rdi)
74.Ld8: movnti %r10,7*8(%rdi)
75 38
76 dec %rdx 39 .section __ex_table,"a"
40 .align 8
41 .quad 100b,103b
42 .quad 101b,103b
43 .previous
44#endif
45 .endm
77 46
47/*
48 * copy_user_nocache - Uncached memory copy with exception handling
49 * This will force destination/source out of cache for more performance.
50 */
51ENTRY(__copy_user_nocache)
52 CFI_STARTPROC
53 cmpl $8,%edx
54 jb 20f /* less then 8 bytes, go to byte copy loop */
55 ALIGN_DESTINATION
56 movl %edx,%ecx
57 andl $63,%edx
58 shrl $6,%ecx
59 jz 17f
601: movq (%rsi),%r8
612: movq 1*8(%rsi),%r9
623: movq 2*8(%rsi),%r10
634: movq 3*8(%rsi),%r11
645: movnti %r8,(%rdi)
656: movnti %r9,1*8(%rdi)
667: movnti %r10,2*8(%rdi)
678: movnti %r11,3*8(%rdi)
689: movq 4*8(%rsi),%r8
6910: movq 5*8(%rsi),%r9
7011: movq 6*8(%rsi),%r10
7112: movq 7*8(%rsi),%r11
7213: movnti %r8,4*8(%rdi)
7314: movnti %r9,5*8(%rdi)
7415: movnti %r10,6*8(%rdi)
7516: movnti %r11,7*8(%rdi)
78 leaq 64(%rsi),%rsi 76 leaq 64(%rsi),%rsi
79 leaq 64(%rdi),%rdi 77 leaq 64(%rdi),%rdi
80
81 jns .Lloop
82
83 .p2align 4
84.Lhandle_tail:
85 movl %ecx,%edx
86 andl $63,%ecx
87 shrl $3,%ecx
88 jz .Lhandle_7
89 movl $8,%ebx
90 .p2align 4
91.Lloop_8:
92.Ls9: movq (%rsi),%r8
93.Ld9: movnti %r8,(%rdi)
94 decl %ecx 78 decl %ecx
95 leaq 8(%rdi),%rdi 79 jnz 1b
8017: movl %edx,%ecx
81 andl $7,%edx
82 shrl $3,%ecx
83 jz 20f
8418: movq (%rsi),%r8
8519: movnti %r8,(%rdi)
96 leaq 8(%rsi),%rsi 86 leaq 8(%rsi),%rsi
97 jnz .Lloop_8 87 leaq 8(%rdi),%rdi
98 88 decl %ecx
99.Lhandle_7: 89 jnz 18b
9020: andl %edx,%edx
91 jz 23f
100 movl %edx,%ecx 92 movl %edx,%ecx
101 andl $7,%ecx 9321: movb (%rsi),%al
102 jz .Lende 9422: movb %al,(%rdi)
103 .p2align 4
104.Lloop_1:
105.Ls10: movb (%rsi),%bl
106.Ld10: movb %bl,(%rdi)
107 incq %rdi
108 incq %rsi 95 incq %rsi
96 incq %rdi
109 decl %ecx 97 decl %ecx
110 jnz .Lloop_1 98 jnz 21b
111 9923: xorl %eax,%eax
112 CFI_REMEMBER_STATE
113.Lende:
114 popq %rcx
115 CFI_ADJUST_CFA_OFFSET -8
116 CFI_RESTORE %rcx
117 popq %rbx
118 CFI_ADJUST_CFA_OFFSET -8
119 CFI_RESTORE rbx
120 sfence 100 sfence
121 ret 101 ret
122 CFI_RESTORE_STATE
123 102
124#ifdef FIX_ALIGNMENT 103 .section .fixup,"ax"
125 /* align destination */ 10430: shll $6,%ecx
126 .p2align 4 105 addl %ecx,%edx
127.Lbad_alignment: 106 jmp 60f
128 movl $8,%r9d 10740: lea (%rdx,%rcx,8),%rdx
129 subl %ecx,%r9d 108 jmp 60f
130 movl %r9d,%ecx 10950: movl %ecx,%edx
131 cmpq %r9,%rdx 11060: sfence
132 jz .Lhandle_7 111 movl %r8d,%ecx
133 js .Lhandle_7 112 jmp copy_user_handle_tail
134.Lalign_1: 113 .previous
135.Ls11: movb (%rsi),%bl
136.Ld11: movb %bl,(%rdi)
137 incq %rsi
138 incq %rdi
139 decl %ecx
140 jnz .Lalign_1
141 subq %r9,%rdx
142 jmp .Lafter_bad_alignment
143#endif
144 114
145 /* table sorted by exception address */
146 .section __ex_table,"a" 115 .section __ex_table,"a"
147 .align 8 116 .quad 1b,30b
148 .quad .Ls1,.Ls1e 117 .quad 2b,30b
149 .quad .Ls2,.Ls2e 118 .quad 3b,30b
150 .quad .Ls3,.Ls3e 119 .quad 4b,30b
151 .quad .Ls4,.Ls4e 120 .quad 5b,30b
152 .quad .Ld1,.Ls1e 121 .quad 6b,30b
153 .quad .Ld2,.Ls2e 122 .quad 7b,30b
154 .quad .Ld3,.Ls3e 123 .quad 8b,30b
155 .quad .Ld4,.Ls4e 124 .quad 9b,30b
156 .quad .Ls5,.Ls5e 125 .quad 10b,30b
157 .quad .Ls6,.Ls6e 126 .quad 11b,30b
158 .quad .Ls7,.Ls7e 127 .quad 12b,30b
159 .quad .Ls8,.Ls8e 128 .quad 13b,30b
160 .quad .Ld5,.Ls5e 129 .quad 14b,30b
161 .quad .Ld6,.Ls6e 130 .quad 15b,30b
162 .quad .Ld7,.Ls7e 131 .quad 16b,30b
163 .quad .Ld8,.Ls8e 132 .quad 18b,40b
164 .quad .Ls9,.Le_quad 133 .quad 19b,40b
165 .quad .Ld9,.Le_quad 134 .quad 21b,50b
166 .quad .Ls10,.Le_byte 135 .quad 22b,50b
167 .quad .Ld10,.Le_byte
168#ifdef FIX_ALIGNMENT
169 .quad .Ls11,.Lzero_rest
170 .quad .Ld11,.Lzero_rest
171#endif
172 .quad .Le5,.Le_zero
173 .previous 136 .previous
174
175 /* compute 64-offset for main loop. 8 bytes accuracy with error on the
176 pessimistic side. this is gross. it would be better to fix the
177 interface. */
178 /* eax: zero, ebx: 64 */
179.Ls1e: addl $8,%eax
180.Ls2e: addl $8,%eax
181.Ls3e: addl $8,%eax
182.Ls4e: addl $8,%eax
183.Ls5e: addl $8,%eax
184.Ls6e: addl $8,%eax
185.Ls7e: addl $8,%eax
186.Ls8e: addl $8,%eax
187 addq %rbx,%rdi /* +64 */
188 subq %rax,%rdi /* correct destination with computed offset */
189
190 shlq $6,%rdx /* loop counter * 64 (stride length) */
191 addq %rax,%rdx /* add offset to loopcnt */
192 andl $63,%ecx /* remaining bytes */
193 addq %rcx,%rdx /* add them */
194 jmp .Lzero_rest
195
196 /* exception on quad word loop in tail handling */
197 /* ecx: loopcnt/8, %edx: length, rdi: correct */
198.Le_quad:
199 shll $3,%ecx
200 andl $7,%edx
201 addl %ecx,%edx
202 /* edx: bytes to zero, rdi: dest, eax:zero */
203.Lzero_rest:
204 cmpl $0,(%rsp) /* zero flag set? */
205 jz .Le_zero
206 movq %rdx,%rcx
207.Le_byte:
208 xorl %eax,%eax
209.Le5: rep
210 stosb
211 /* when there is another exception while zeroing the rest just return */
212.Le_zero:
213 movq %rdx,%rax
214 jmp .Lende
215 CFI_ENDPROC 137 CFI_ENDPROC
216ENDPROC(__copy_user_nocache) 138ENDPROC(__copy_user_nocache)
217
218
diff --git a/arch/x86/lib/delay_32.c b/arch/x86/lib/delay.c
index 4535e6d147ad..f4568605d7d5 100644
--- a/arch/x86/lib/delay_32.c
+++ b/arch/x86/lib/delay.c
@@ -3,6 +3,7 @@
3 * 3 *
4 * Copyright (C) 1993 Linus Torvalds 4 * Copyright (C) 1993 Linus Torvalds
5 * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz> 5 * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
6 * Copyright (C) 2008 Jiri Hladky <hladky _dot_ jiri _at_ gmail _dot_ com>
6 * 7 *
7 * The __delay function must _NOT_ be inlined as its execution time 8 * The __delay function must _NOT_ be inlined as its execution time
8 * depends wildly on alignment on many x86 processors. The additional 9 * depends wildly on alignment on many x86 processors. The additional
@@ -28,29 +29,58 @@
28/* simple loop based delay: */ 29/* simple loop based delay: */
29static void delay_loop(unsigned long loops) 30static void delay_loop(unsigned long loops)
30{ 31{
31 int d0; 32 asm volatile(
32 33 " test %0,%0 \n"
33 __asm__ __volatile__( 34 " jz 3f \n"
34 "\tjmp 1f\n" 35 " jmp 1f \n"
35 ".align 16\n" 36
36 "1:\tjmp 2f\n" 37 ".align 16 \n"
37 ".align 16\n" 38 "1: jmp 2f \n"
38 "2:\tdecl %0\n\tjns 2b" 39
39 :"=&a" (d0) 40 ".align 16 \n"
40 :"0" (loops)); 41 "2: dec %0 \n"
42 " jnz 2b \n"
43 "3: dec %0 \n"
44
45 : /* we don't need output */
46 :"a" (loops)
47 );
41} 48}
42 49
43/* TSC based delay: */ 50/* TSC based delay: */
44static void delay_tsc(unsigned long loops) 51static void delay_tsc(unsigned long loops)
45{ 52{
46 unsigned long bclock, now; 53 unsigned long bclock, now;
54 int cpu;
47 55
48 preempt_disable(); /* TSC's are per-cpu */ 56 preempt_disable();
57 cpu = smp_processor_id();
49 rdtscl(bclock); 58 rdtscl(bclock);
50 do { 59 for (;;) {
51 rep_nop();
52 rdtscl(now); 60 rdtscl(now);
53 } while ((now-bclock) < loops); 61 if ((now - bclock) >= loops)
62 break;
63
64 /* Allow RT tasks to run */
65 preempt_enable();
66 rep_nop();
67 preempt_disable();
68
69 /*
70 * It is possible that we moved to another CPU, and
71 * since TSC's are per-cpu we need to calculate
72 * that. The delay must guarantee that we wait "at
73 * least" the amount of time. Being moved to another
74 * CPU could make the wait longer but we just need to
75 * make sure we waited long enough. Rebalance the
76 * counter for this CPU.
77 */
78 if (unlikely(cpu != smp_processor_id())) {
79 loops -= (now - bclock);
80 cpu = smp_processor_id();
81 rdtscl(bclock);
82 }
83 }
54 preempt_enable(); 84 preempt_enable();
55} 85}
56 86
@@ -68,7 +98,7 @@ void use_tsc_delay(void)
68int __devinit read_current_timer(unsigned long *timer_val) 98int __devinit read_current_timer(unsigned long *timer_val)
69{ 99{
70 if (delay_fn == delay_tsc) { 100 if (delay_fn == delay_tsc) {
71 rdtscl(*timer_val); 101 rdtscll(*timer_val);
72 return 0; 102 return 0;
73 } 103 }
74 return -1; 104 return -1;
@@ -78,31 +108,30 @@ void __delay(unsigned long loops)
78{ 108{
79 delay_fn(loops); 109 delay_fn(loops);
80} 110}
111EXPORT_SYMBOL(__delay);
81 112
82inline void __const_udelay(unsigned long xloops) 113inline void __const_udelay(unsigned long xloops)
83{ 114{
84 int d0; 115 int d0;
85 116
86 xloops *= 4; 117 xloops *= 4;
87 __asm__("mull %0" 118 asm("mull %%edx"
88 :"=d" (xloops), "=&a" (d0) 119 :"=d" (xloops), "=&a" (d0)
89 :"1" (xloops), "0" 120 :"1" (xloops), "0"
90 (cpu_data(raw_smp_processor_id()).loops_per_jiffy * (HZ/4))); 121 (cpu_data(raw_smp_processor_id()).loops_per_jiffy * (HZ/4)));
91 122
92 __delay(++xloops); 123 __delay(++xloops);
93} 124}
125EXPORT_SYMBOL(__const_udelay);
94 126
95void __udelay(unsigned long usecs) 127void __udelay(unsigned long usecs)
96{ 128{
97 __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ 129 __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
98} 130}
131EXPORT_SYMBOL(__udelay);
99 132
100void __ndelay(unsigned long nsecs) 133void __ndelay(unsigned long nsecs)
101{ 134{
102 __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ 135 __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
103} 136}
104
105EXPORT_SYMBOL(__delay);
106EXPORT_SYMBOL(__const_udelay);
107EXPORT_SYMBOL(__udelay);
108EXPORT_SYMBOL(__ndelay); 137EXPORT_SYMBOL(__ndelay);
diff --git a/arch/x86/lib/delay_64.c b/arch/x86/lib/delay_64.c
deleted file mode 100644
index bbc610518516..000000000000
--- a/arch/x86/lib/delay_64.c
+++ /dev/null
@@ -1,63 +0,0 @@
1/*
2 * Precise Delay Loops for x86-64
3 *
4 * Copyright (C) 1993 Linus Torvalds
5 * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
6 *
7 * The __delay function must _NOT_ be inlined as its execution time
8 * depends wildly on alignment on many x86 processors.
9 */
10
11#include <linux/module.h>
12#include <linux/sched.h>
13#include <linux/timex.h>
14#include <linux/preempt.h>
15#include <linux/delay.h>
16#include <linux/init.h>
17
18#include <asm/delay.h>
19#include <asm/msr.h>
20
21#ifdef CONFIG_SMP
22#include <asm/smp.h>
23#endif
24
25int __devinit read_current_timer(unsigned long *timer_value)
26{
27 rdtscll(*timer_value);
28 return 0;
29}
30
31void __delay(unsigned long loops)
32{
33 unsigned bclock, now;
34
35 preempt_disable(); /* TSC's are pre-cpu */
36 rdtscl(bclock);
37 do {
38 rep_nop();
39 rdtscl(now);
40 }
41 while ((now-bclock) < loops);
42 preempt_enable();
43}
44EXPORT_SYMBOL(__delay);
45
46inline void __const_udelay(unsigned long xloops)
47{
48 __delay(((xloops * HZ *
49 cpu_data(raw_smp_processor_id()).loops_per_jiffy) >> 32) + 1);
50}
51EXPORT_SYMBOL(__const_udelay);
52
53void __udelay(unsigned long usecs)
54{
55 __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
56}
57EXPORT_SYMBOL(__udelay);
58
59void __ndelay(unsigned long nsecs)
60{
61 __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
62}
63EXPORT_SYMBOL(__ndelay);
diff --git a/arch/x86/lib/getuser_64.S b/arch/x86/lib/getuser.S
index 5448876261f8..ad374003742f 100644
--- a/arch/x86/lib/getuser_64.S
+++ b/arch/x86/lib/getuser.S
@@ -3,6 +3,7 @@
3 * 3 *
4 * (C) Copyright 1998 Linus Torvalds 4 * (C) Copyright 1998 Linus Torvalds
5 * (C) Copyright 2005 Andi Kleen 5 * (C) Copyright 2005 Andi Kleen
6 * (C) Copyright 2008 Glauber Costa
6 * 7 *
7 * These functions have a non-standard call interface 8 * These functions have a non-standard call interface
8 * to make them more efficient, especially as they 9 * to make them more efficient, especially as they
@@ -13,14 +14,13 @@
13/* 14/*
14 * __get_user_X 15 * __get_user_X
15 * 16 *
16 * Inputs: %rcx contains the address. 17 * Inputs: %[r|e]ax contains the address.
17 * The register is modified, but all changes are undone 18 * The register is modified, but all changes are undone
18 * before returning because the C code doesn't know about it. 19 * before returning because the C code doesn't know about it.
19 * 20 *
20 * Outputs: %rax is error code (0 or -EFAULT) 21 * Outputs: %[r|e]ax is error code (0 or -EFAULT)
21 * %rdx contains zero-extended value 22 * %[r|e]dx contains zero-extended value
22 * 23 *
23 * %r8 is destroyed.
24 * 24 *
25 * These functions should not modify any other registers, 25 * These functions should not modify any other registers,
26 * as they get called from within inline assembly. 26 * as they get called from within inline assembly.
@@ -32,78 +32,73 @@
32#include <asm/errno.h> 32#include <asm/errno.h>
33#include <asm/asm-offsets.h> 33#include <asm/asm-offsets.h>
34#include <asm/thread_info.h> 34#include <asm/thread_info.h>
35#include <asm/asm.h>
35 36
36 .text 37 .text
37ENTRY(__get_user_1) 38ENTRY(__get_user_1)
38 CFI_STARTPROC 39 CFI_STARTPROC
39 GET_THREAD_INFO(%r8) 40 GET_THREAD_INFO(%_ASM_DX)
40 cmpq threadinfo_addr_limit(%r8),%rcx 41 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
41 jae bad_get_user 42 jae bad_get_user
421: movzb (%rcx),%edx 431: movzb (%_ASM_AX),%edx
43 xorl %eax,%eax 44 xor %eax,%eax
44 ret 45 ret
45 CFI_ENDPROC 46 CFI_ENDPROC
46ENDPROC(__get_user_1) 47ENDPROC(__get_user_1)
47 48
48ENTRY(__get_user_2) 49ENTRY(__get_user_2)
49 CFI_STARTPROC 50 CFI_STARTPROC
50 GET_THREAD_INFO(%r8) 51 add $1,%_ASM_AX
51 addq $1,%rcx 52 jc bad_get_user
52 jc 20f 53 GET_THREAD_INFO(%_ASM_DX)
53 cmpq threadinfo_addr_limit(%r8),%rcx 54 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
54 jae 20f 55 jae bad_get_user
55 decq %rcx 562: movzwl -1(%_ASM_AX),%edx
562: movzwl (%rcx),%edx 57 xor %eax,%eax
57 xorl %eax,%eax
58 ret 58 ret
5920: decq %rcx
60 jmp bad_get_user
61 CFI_ENDPROC 59 CFI_ENDPROC
62ENDPROC(__get_user_2) 60ENDPROC(__get_user_2)
63 61
64ENTRY(__get_user_4) 62ENTRY(__get_user_4)
65 CFI_STARTPROC 63 CFI_STARTPROC
66 GET_THREAD_INFO(%r8) 64 add $3,%_ASM_AX
67 addq $3,%rcx 65 jc bad_get_user
68 jc 30f 66 GET_THREAD_INFO(%_ASM_DX)
69 cmpq threadinfo_addr_limit(%r8),%rcx 67 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
70 jae 30f 68 jae bad_get_user
71 subq $3,%rcx 693: mov -3(%_ASM_AX),%edx
723: movl (%rcx),%edx 70 xor %eax,%eax
73 xorl %eax,%eax
74 ret 71 ret
7530: subq $3,%rcx
76 jmp bad_get_user
77 CFI_ENDPROC 72 CFI_ENDPROC
78ENDPROC(__get_user_4) 73ENDPROC(__get_user_4)
79 74
75#ifdef CONFIG_X86_64
80ENTRY(__get_user_8) 76ENTRY(__get_user_8)
81 CFI_STARTPROC 77 CFI_STARTPROC
82 GET_THREAD_INFO(%r8) 78 add $7,%_ASM_AX
83 addq $7,%rcx 79 jc bad_get_user
84 jc 40f 80 GET_THREAD_INFO(%_ASM_DX)
85 cmpq threadinfo_addr_limit(%r8),%rcx 81 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
86 jae 40f 82 jae bad_get_user
87 subq $7,%rcx 834: movq -7(%_ASM_AX),%_ASM_DX
884: movq (%rcx),%rdx 84 xor %eax,%eax
89 xorl %eax,%eax
90 ret 85 ret
9140: subq $7,%rcx
92 jmp bad_get_user
93 CFI_ENDPROC 86 CFI_ENDPROC
94ENDPROC(__get_user_8) 87ENDPROC(__get_user_8)
88#endif
95 89
96bad_get_user: 90bad_get_user:
97 CFI_STARTPROC 91 CFI_STARTPROC
98 xorl %edx,%edx 92 xor %edx,%edx
99 movq $(-EFAULT),%rax 93 mov $(-EFAULT),%_ASM_AX
100 ret 94 ret
101 CFI_ENDPROC 95 CFI_ENDPROC
102END(bad_get_user) 96END(bad_get_user)
103 97
104.section __ex_table,"a" 98.section __ex_table,"a"
105 .quad 1b,bad_get_user 99 _ASM_PTR 1b,bad_get_user
106 .quad 2b,bad_get_user 100 _ASM_PTR 2b,bad_get_user
107 .quad 3b,bad_get_user 101 _ASM_PTR 3b,bad_get_user
108 .quad 4b,bad_get_user 102#ifdef CONFIG_X86_64
109.previous 103 _ASM_PTR 4b,bad_get_user
104#endif
diff --git a/arch/x86/lib/getuser_32.S b/arch/x86/lib/getuser_32.S
deleted file mode 100644
index 6d84b53f12a2..000000000000
--- a/arch/x86/lib/getuser_32.S
+++ /dev/null
@@ -1,78 +0,0 @@
1/*
2 * __get_user functions.
3 *
4 * (C) Copyright 1998 Linus Torvalds
5 *
6 * These functions have a non-standard call interface
7 * to make them more efficient, especially as they
8 * return an error value in addition to the "real"
9 * return value.
10 */
11#include <linux/linkage.h>
12#include <asm/dwarf2.h>
13#include <asm/thread_info.h>
14
15
16/*
17 * __get_user_X
18 *
19 * Inputs: %eax contains the address
20 *
21 * Outputs: %eax is error code (0 or -EFAULT)
22 * %edx contains zero-extended value
23 *
24 * These functions should not modify any other registers,
25 * as they get called from within inline assembly.
26 */
27
28.text
29ENTRY(__get_user_1)
30 CFI_STARTPROC
31 GET_THREAD_INFO(%edx)
32 cmpl TI_addr_limit(%edx),%eax
33 jae bad_get_user
341: movzbl (%eax),%edx
35 xorl %eax,%eax
36 ret
37 CFI_ENDPROC
38ENDPROC(__get_user_1)
39
40ENTRY(__get_user_2)
41 CFI_STARTPROC
42 addl $1,%eax
43 jc bad_get_user
44 GET_THREAD_INFO(%edx)
45 cmpl TI_addr_limit(%edx),%eax
46 jae bad_get_user
472: movzwl -1(%eax),%edx
48 xorl %eax,%eax
49 ret
50 CFI_ENDPROC
51ENDPROC(__get_user_2)
52
53ENTRY(__get_user_4)
54 CFI_STARTPROC
55 addl $3,%eax
56 jc bad_get_user
57 GET_THREAD_INFO(%edx)
58 cmpl TI_addr_limit(%edx),%eax
59 jae bad_get_user
603: movl -3(%eax),%edx
61 xorl %eax,%eax
62 ret
63 CFI_ENDPROC
64ENDPROC(__get_user_4)
65
66bad_get_user:
67 CFI_STARTPROC
68 xorl %edx,%edx
69 movl $-14,%eax
70 ret
71 CFI_ENDPROC
72END(bad_get_user)
73
74.section __ex_table,"a"
75 .long 1b,bad_get_user
76 .long 2b,bad_get_user
77 .long 3b,bad_get_user
78.previous
diff --git a/arch/x86/lib/msr-on-cpu.c b/arch/x86/lib/msr-on-cpu.c
index 57d043fa893e..d5a2b39f882b 100644
--- a/arch/x86/lib/msr-on-cpu.c
+++ b/arch/x86/lib/msr-on-cpu.c
@@ -30,10 +30,10 @@ static int _rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h, int safe)
30 30
31 rv.msr_no = msr_no; 31 rv.msr_no = msr_no;
32 if (safe) { 32 if (safe) {
33 smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 0, 1); 33 smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
34 err = rv.err; 34 err = rv.err;
35 } else { 35 } else {
36 smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 0, 1); 36 smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
37 } 37 }
38 *l = rv.l; 38 *l = rv.l;
39 *h = rv.h; 39 *h = rv.h;
@@ -64,10 +64,10 @@ static int _wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h, int safe)
64 rv.l = l; 64 rv.l = l;
65 rv.h = h; 65 rv.h = h;
66 if (safe) { 66 if (safe) {
67 smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 0, 1); 67 smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
68 err = rv.err; 68 err = rv.err;
69 } else { 69 } else {
70 smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 0, 1); 70 smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
71 } 71 }
72 72
73 return err; 73 return err;
diff --git a/arch/x86/lib/putuser_32.S b/arch/x86/lib/putuser.S
index f58fba109d18..36b0d15ae6e9 100644
--- a/arch/x86/lib/putuser_32.S
+++ b/arch/x86/lib/putuser.S
@@ -2,6 +2,8 @@
2 * __put_user functions. 2 * __put_user functions.
3 * 3 *
4 * (C) Copyright 2005 Linus Torvalds 4 * (C) Copyright 2005 Linus Torvalds
5 * (C) Copyright 2005 Andi Kleen
6 * (C) Copyright 2008 Glauber Costa
5 * 7 *
6 * These functions have a non-standard call interface 8 * These functions have a non-standard call interface
7 * to make them more efficient, especially as they 9 * to make them more efficient, especially as they
@@ -11,6 +13,8 @@
11#include <linux/linkage.h> 13#include <linux/linkage.h>
12#include <asm/dwarf2.h> 14#include <asm/dwarf2.h>
13#include <asm/thread_info.h> 15#include <asm/thread_info.h>
16#include <asm/errno.h>
17#include <asm/asm.h>
14 18
15 19
16/* 20/*
@@ -26,73 +30,68 @@
26 */ 30 */
27 31
28#define ENTER CFI_STARTPROC ; \ 32#define ENTER CFI_STARTPROC ; \
29 pushl %ebx ; \ 33 GET_THREAD_INFO(%_ASM_BX)
30 CFI_ADJUST_CFA_OFFSET 4 ; \ 34#define EXIT ret ; \
31 CFI_REL_OFFSET ebx, 0 ; \
32 GET_THREAD_INFO(%ebx)
33#define EXIT popl %ebx ; \
34 CFI_ADJUST_CFA_OFFSET -4 ; \
35 CFI_RESTORE ebx ; \
36 ret ; \
37 CFI_ENDPROC 35 CFI_ENDPROC
38 36
39.text 37.text
40ENTRY(__put_user_1) 38ENTRY(__put_user_1)
41 ENTER 39 ENTER
42 cmpl TI_addr_limit(%ebx),%ecx 40 cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
43 jae bad_put_user 41 jae bad_put_user
441: movb %al,(%ecx) 421: movb %al,(%_ASM_CX)
45 xorl %eax,%eax 43 xor %eax,%eax
46 EXIT 44 EXIT
47ENDPROC(__put_user_1) 45ENDPROC(__put_user_1)
48 46
49ENTRY(__put_user_2) 47ENTRY(__put_user_2)
50 ENTER 48 ENTER
51 movl TI_addr_limit(%ebx),%ebx 49 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
52 subl $1,%ebx 50 sub $1,%_ASM_BX
53 cmpl %ebx,%ecx 51 cmp %_ASM_BX,%_ASM_CX
54 jae bad_put_user 52 jae bad_put_user
552: movw %ax,(%ecx) 532: movw %ax,(%_ASM_CX)
56 xorl %eax,%eax 54 xor %eax,%eax
57 EXIT 55 EXIT
58ENDPROC(__put_user_2) 56ENDPROC(__put_user_2)
59 57
60ENTRY(__put_user_4) 58ENTRY(__put_user_4)
61 ENTER 59 ENTER
62 movl TI_addr_limit(%ebx),%ebx 60 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
63 subl $3,%ebx 61 sub $3,%_ASM_BX
64 cmpl %ebx,%ecx 62 cmp %_ASM_BX,%_ASM_CX
65 jae bad_put_user 63 jae bad_put_user
663: movl %eax,(%ecx) 643: movl %eax,(%_ASM_CX)
67 xorl %eax,%eax 65 xor %eax,%eax
68 EXIT 66 EXIT
69ENDPROC(__put_user_4) 67ENDPROC(__put_user_4)
70 68
71ENTRY(__put_user_8) 69ENTRY(__put_user_8)
72 ENTER 70 ENTER
73 movl TI_addr_limit(%ebx),%ebx 71 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
74 subl $7,%ebx 72 sub $7,%_ASM_BX
75 cmpl %ebx,%ecx 73 cmp %_ASM_BX,%_ASM_CX
76 jae bad_put_user 74 jae bad_put_user
774: movl %eax,(%ecx) 754: mov %_ASM_AX,(%_ASM_CX)
785: movl %edx,4(%ecx) 76#ifdef CONFIG_X86_32
79 xorl %eax,%eax 775: movl %edx,4(%_ASM_CX)
78#endif
79 xor %eax,%eax
80 EXIT 80 EXIT
81ENDPROC(__put_user_8) 81ENDPROC(__put_user_8)
82 82
83bad_put_user: 83bad_put_user:
84 CFI_STARTPROC simple 84 CFI_STARTPROC
85 CFI_DEF_CFA esp, 2*4 85 movl $-EFAULT,%eax
86 CFI_OFFSET eip, -1*4
87 CFI_OFFSET ebx, -2*4
88 movl $-14,%eax
89 EXIT 86 EXIT
90END(bad_put_user) 87END(bad_put_user)
91 88
92.section __ex_table,"a" 89.section __ex_table,"a"
93 .long 1b,bad_put_user 90 _ASM_PTR 1b,bad_put_user
94 .long 2b,bad_put_user 91 _ASM_PTR 2b,bad_put_user
95 .long 3b,bad_put_user 92 _ASM_PTR 3b,bad_put_user
96 .long 4b,bad_put_user 93 _ASM_PTR 4b,bad_put_user
97 .long 5b,bad_put_user 94#ifdef CONFIG_X86_32
95 _ASM_PTR 5b,bad_put_user
96#endif
98.previous 97.previous
diff --git a/arch/x86/lib/putuser_64.S b/arch/x86/lib/putuser_64.S
deleted file mode 100644
index 4989f5a8fa9b..000000000000
--- a/arch/x86/lib/putuser_64.S
+++ /dev/null
@@ -1,106 +0,0 @@
1/*
2 * __put_user functions.
3 *
4 * (C) Copyright 1998 Linus Torvalds
5 * (C) Copyright 2005 Andi Kleen
6 *
7 * These functions have a non-standard call interface
8 * to make them more efficient, especially as they
9 * return an error value in addition to the "real"
10 * return value.
11 */
12
13/*
14 * __put_user_X
15 *
16 * Inputs: %rcx contains the address
17 * %rdx contains new value
18 *
19 * Outputs: %rax is error code (0 or -EFAULT)
20 *
21 * %r8 is destroyed.
22 *
23 * These functions should not modify any other registers,
24 * as they get called from within inline assembly.
25 */
26
27#include <linux/linkage.h>
28#include <asm/dwarf2.h>
29#include <asm/page.h>
30#include <asm/errno.h>
31#include <asm/asm-offsets.h>
32#include <asm/thread_info.h>
33
34 .text
35ENTRY(__put_user_1)
36 CFI_STARTPROC
37 GET_THREAD_INFO(%r8)
38 cmpq threadinfo_addr_limit(%r8),%rcx
39 jae bad_put_user
401: movb %dl,(%rcx)
41 xorl %eax,%eax
42 ret
43 CFI_ENDPROC
44ENDPROC(__put_user_1)
45
46ENTRY(__put_user_2)
47 CFI_STARTPROC
48 GET_THREAD_INFO(%r8)
49 addq $1,%rcx
50 jc 20f
51 cmpq threadinfo_addr_limit(%r8),%rcx
52 jae 20f
53 decq %rcx
542: movw %dx,(%rcx)
55 xorl %eax,%eax
56 ret
5720: decq %rcx
58 jmp bad_put_user
59 CFI_ENDPROC
60ENDPROC(__put_user_2)
61
62ENTRY(__put_user_4)
63 CFI_STARTPROC
64 GET_THREAD_INFO(%r8)
65 addq $3,%rcx
66 jc 30f
67 cmpq threadinfo_addr_limit(%r8),%rcx
68 jae 30f
69 subq $3,%rcx
703: movl %edx,(%rcx)
71 xorl %eax,%eax
72 ret
7330: subq $3,%rcx
74 jmp bad_put_user
75 CFI_ENDPROC
76ENDPROC(__put_user_4)
77
78ENTRY(__put_user_8)
79 CFI_STARTPROC
80 GET_THREAD_INFO(%r8)
81 addq $7,%rcx
82 jc 40f
83 cmpq threadinfo_addr_limit(%r8),%rcx
84 jae 40f
85 subq $7,%rcx
864: movq %rdx,(%rcx)
87 xorl %eax,%eax
88 ret
8940: subq $7,%rcx
90 jmp bad_put_user
91 CFI_ENDPROC
92ENDPROC(__put_user_8)
93
94bad_put_user:
95 CFI_STARTPROC
96 movq $(-EFAULT),%rax
97 ret
98 CFI_ENDPROC
99END(bad_put_user)
100
101.section __ex_table,"a"
102 .quad 1b,bad_put_user
103 .quad 2b,bad_put_user
104 .quad 3b,bad_put_user
105 .quad 4b,bad_put_user
106.previous
diff --git a/arch/x86/lib/thunk_32.S b/arch/x86/lib/thunk_32.S
new file mode 100644
index 000000000000..650b11e00ecc
--- /dev/null
+++ b/arch/x86/lib/thunk_32.S
@@ -0,0 +1,47 @@
1/*
2 * Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash)
3 * Copyright 2008 by Steven Rostedt, Red Hat, Inc
4 * (inspired by Andi Kleen's thunk_64.S)
5 * Subject to the GNU public license, v.2. No warranty of any kind.
6 */
7
8 #include <linux/linkage.h>
9
10#define ARCH_TRACE_IRQS_ON \
11 pushl %eax; \
12 pushl %ecx; \
13 pushl %edx; \
14 call trace_hardirqs_on; \
15 popl %edx; \
16 popl %ecx; \
17 popl %eax;
18
19#define ARCH_TRACE_IRQS_OFF \
20 pushl %eax; \
21 pushl %ecx; \
22 pushl %edx; \
23 call trace_hardirqs_off; \
24 popl %edx; \
25 popl %ecx; \
26 popl %eax;
27
28#ifdef CONFIG_TRACE_IRQFLAGS
29 /* put return address in eax (arg1) */
30 .macro thunk_ra name,func
31 .globl \name
32\name:
33 pushl %eax
34 pushl %ecx
35 pushl %edx
36 /* Place EIP in the arg1 */
37 movl 3*4(%esp), %eax
38 call \func
39 popl %edx
40 popl %ecx
41 popl %eax
42 ret
43 .endm
44
45 thunk_ra trace_hardirqs_on_thunk,trace_hardirqs_on_caller
46 thunk_ra trace_hardirqs_off_thunk,trace_hardirqs_off_caller
47#endif
diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
index e009251d4e9f..bf9a7d5a5428 100644
--- a/arch/x86/lib/thunk_64.S
+++ b/arch/x86/lib/thunk_64.S
@@ -2,6 +2,7 @@
2 * Save registers before calling assembly functions. This avoids 2 * Save registers before calling assembly functions. This avoids
3 * disturbance of register allocation in some inline assembly constructs. 3 * disturbance of register allocation in some inline assembly constructs.
4 * Copyright 2001,2002 by Andi Kleen, SuSE Labs. 4 * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
5 * Added trace_hardirqs callers - Copyright 2007 Steven Rostedt, Red Hat, Inc.
5 * Subject to the GNU public license, v.2. No warranty of any kind. 6 * Subject to the GNU public license, v.2. No warranty of any kind.
6 */ 7 */
7 8
@@ -42,8 +43,22 @@
42#endif 43#endif
43 44
44#ifdef CONFIG_TRACE_IRQFLAGS 45#ifdef CONFIG_TRACE_IRQFLAGS
45 thunk trace_hardirqs_on_thunk,trace_hardirqs_on 46 /* put return address in rdi (arg1) */
46 thunk trace_hardirqs_off_thunk,trace_hardirqs_off 47 .macro thunk_ra name,func
48 .globl \name
49\name:
50 CFI_STARTPROC
51 SAVE_ARGS
52 /* SAVE_ARGS pushs 9 elements */
53 /* the next element would be the rip */
54 movq 9*8(%rsp), %rdi
55 call \func
56 jmp restore
57 CFI_ENDPROC
58 .endm
59
60 thunk_ra trace_hardirqs_on_thunk,trace_hardirqs_on_caller
61 thunk_ra trace_hardirqs_off_thunk,trace_hardirqs_off_caller
47#endif 62#endif
48 63
49#ifdef CONFIG_DEBUG_LOCK_ALLOC 64#ifdef CONFIG_DEBUG_LOCK_ALLOC
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index 0c89d1bb0287..f4df6e7c718b 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -158,3 +158,26 @@ unsigned long copy_in_user(void __user *to, const void __user *from, unsigned le
158} 158}
159EXPORT_SYMBOL(copy_in_user); 159EXPORT_SYMBOL(copy_in_user);
160 160
161/*
162 * Try to copy last bytes and clear the rest if needed.
163 * Since protection fault in copy_from/to_user is not a normal situation,
164 * it is not necessary to optimize tail handling.
165 */
166unsigned long
167copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
168{
169 char c;
170 unsigned zero_len;
171
172 for (; len; --len) {
173 if (__get_user_nocheck(c, from++, sizeof(char)))
174 break;
175 if (__put_user_nocheck(c, to++, sizeof(char)))
176 break;
177 }
178
179 for (c = 0, zero_len = len; zerorest && zero_len; --zero_len)
180 if (__put_user_nocheck(c, to++, sizeof(char)))
181 break;
182 return len;
183}
diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c
index 0c28a071824c..48278fa7d3de 100644
--- a/arch/x86/mach-default/setup.c
+++ b/arch/x86/mach-default/setup.c
@@ -10,6 +10,14 @@
10#include <asm/e820.h> 10#include <asm/e820.h>
11#include <asm/setup.h> 11#include <asm/setup.h>
12 12
13/*
14 * Any quirks to be performed to initialize timers/irqs/etc?
15 */
16int (*arch_time_init_quirk)(void);
17int (*arch_pre_intr_init_quirk)(void);
18int (*arch_intr_init_quirk)(void);
19int (*arch_trap_init_quirk)(void);
20
13#ifdef CONFIG_HOTPLUG_CPU 21#ifdef CONFIG_HOTPLUG_CPU
14#define DEFAULT_SEND_IPI (1) 22#define DEFAULT_SEND_IPI (1)
15#else 23#else
@@ -29,6 +37,10 @@ int no_broadcast=DEFAULT_SEND_IPI;
29 **/ 37 **/
30void __init pre_intr_init_hook(void) 38void __init pre_intr_init_hook(void)
31{ 39{
40 if (arch_pre_intr_init_quirk) {
41 if (arch_pre_intr_init_quirk())
42 return;
43 }
32 init_ISA_irqs(); 44 init_ISA_irqs();
33} 45}
34 46
@@ -52,6 +64,10 @@ static struct irqaction irq2 = {
52 **/ 64 **/
53void __init intr_init_hook(void) 65void __init intr_init_hook(void)
54{ 66{
67 if (arch_intr_init_quirk) {
68 if (arch_intr_init_quirk())
69 return;
70 }
55#ifdef CONFIG_X86_LOCAL_APIC 71#ifdef CONFIG_X86_LOCAL_APIC
56 apic_intr_init(); 72 apic_intr_init();
57#endif 73#endif
@@ -65,7 +81,7 @@ void __init intr_init_hook(void)
65 * 81 *
66 * Description: 82 * Description:
67 * generally used to activate any machine specific identification 83 * generally used to activate any machine specific identification
68 * routines that may be needed before setup_arch() runs. On VISWS 84 * routines that may be needed before setup_arch() runs. On Voyager
69 * this is used to get the board revision and type. 85 * this is used to get the board revision and type.
70 **/ 86 **/
71void __init pre_setup_arch_hook(void) 87void __init pre_setup_arch_hook(void)
@@ -81,6 +97,10 @@ void __init pre_setup_arch_hook(void)
81 **/ 97 **/
82void __init trap_init_hook(void) 98void __init trap_init_hook(void)
83{ 99{
100 if (arch_trap_init_quirk) {
101 if (arch_trap_init_quirk())
102 return;
103 }
84} 104}
85 105
86static struct irqaction irq0 = { 106static struct irqaction irq0 = {
@@ -99,6 +119,16 @@ static struct irqaction irq0 = {
99 **/ 119 **/
100void __init time_init_hook(void) 120void __init time_init_hook(void)
101{ 121{
122 if (arch_time_init_quirk) {
123 /*
124 * A nonzero return code does not mean failure, it means
125 * that the architecture quirk does not want any
126 * generic (timer) setup to be performed after this:
127 */
128 if (arch_time_init_quirk())
129 return;
130 }
131
102 irq0.mask = cpumask_of_cpu(0); 132 irq0.mask = cpumask_of_cpu(0);
103 setup_irq(0, &irq0); 133 setup_irq(0, &irq0);
104} 134}
@@ -142,45 +172,3 @@ static int __init print_ipi_mode(void)
142 172
143late_initcall(print_ipi_mode); 173late_initcall(print_ipi_mode);
144 174
145/**
146 * machine_specific_memory_setup - Hook for machine specific memory setup.
147 *
148 * Description:
149 * This is included late in kernel/setup.c so that it can make
150 * use of all of the static functions.
151 **/
152
153char * __init machine_specific_memory_setup(void)
154{
155 char *who;
156
157
158 who = "BIOS-e820";
159
160 /*
161 * Try to copy the BIOS-supplied E820-map.
162 *
163 * Otherwise fake a memory map; one section from 0k->640k,
164 * the next section from 1mb->appropriate_mem_k
165 */
166 sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
167 if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries)
168 < 0) {
169 unsigned long mem_size;
170
171 /* compare results from other methods and take the greater */
172 if (boot_params.alt_mem_k
173 < boot_params.screen_info.ext_mem_k) {
174 mem_size = boot_params.screen_info.ext_mem_k;
175 who = "BIOS-88";
176 } else {
177 mem_size = boot_params.alt_mem_k;
178 who = "BIOS-e801";
179 }
180
181 e820.nr_map = 0;
182 add_memory_region(0, LOWMEMSIZE(), E820_RAM);
183 add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
184 }
185 return who;
186}
diff --git a/arch/x86/mach-es7000/Makefile b/arch/x86/mach-es7000/Makefile
index 69dd4da218dc..3ef8b43b62fc 100644
--- a/arch/x86/mach-es7000/Makefile
+++ b/arch/x86/mach-es7000/Makefile
@@ -3,4 +3,3 @@
3# 3#
4 4
5obj-$(CONFIG_X86_ES7000) := es7000plat.o 5obj-$(CONFIG_X86_ES7000) := es7000plat.o
6obj-$(CONFIG_X86_GENERICARCH) := es7000plat.o
diff --git a/arch/x86/mach-es7000/es7000plat.c b/arch/x86/mach-es7000/es7000plat.c
index f5d6f7d8b86e..4354ce804889 100644
--- a/arch/x86/mach-es7000/es7000plat.c
+++ b/arch/x86/mach-es7000/es7000plat.c
@@ -52,6 +52,8 @@ static struct mip_reg *host_reg;
52static int mip_port; 52static int mip_port;
53static unsigned long mip_addr, host_addr; 53static unsigned long mip_addr, host_addr;
54 54
55int es7000_plat;
56
55/* 57/*
56 * GSI override for ES7000 platforms. 58 * GSI override for ES7000 platforms.
57 */ 59 */
@@ -175,53 +177,6 @@ find_unisys_acpi_oem_table(unsigned long *oem_addr)
175} 177}
176#endif 178#endif
177 179
178/*
179 * This file also gets compiled if CONFIG_X86_GENERICARCH is set. Generic
180 * arch already has got following function definitions (asm-generic/es7000.c)
181 * hence no need to define these for that case.
182 */
183#ifndef CONFIG_X86_GENERICARCH
184void es7000_sw_apic(void);
185void __init enable_apic_mode(void)
186{
187 es7000_sw_apic();
188 return;
189}
190
191__init int mps_oem_check(struct mp_config_table *mpc, char *oem,
192 char *productid)
193{
194 if (mpc->mpc_oemptr) {
195 struct mp_config_oemtable *oem_table =
196 (struct mp_config_oemtable *)mpc->mpc_oemptr;
197 if (!strncmp(oem, "UNISYS", 6))
198 return parse_unisys_oem((char *)oem_table);
199 }
200 return 0;
201}
202#ifdef CONFIG_ACPI
203/* Hook from generic ACPI tables.c */
204int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
205{
206 unsigned long oem_addr;
207 if (!find_unisys_acpi_oem_table(&oem_addr)) {
208 if (es7000_check_dsdt())
209 return parse_unisys_oem((char *)oem_addr);
210 else {
211 setup_unisys();
212 return 1;
213 }
214 }
215 return 0;
216}
217#else
218int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
219{
220 return 0;
221}
222#endif
223#endif /* COFIG_X86_GENERICARCH */
224
225static void 180static void
226es7000_spin(int n) 181es7000_spin(int n)
227{ 182{
diff --git a/arch/x86/mach-generic/Makefile b/arch/x86/mach-generic/Makefile
index 19d6d407737b..0dbd7803a1d5 100644
--- a/arch/x86/mach-generic/Makefile
+++ b/arch/x86/mach-generic/Makefile
@@ -2,7 +2,11 @@
2# Makefile for the generic architecture 2# Makefile for the generic architecture
3# 3#
4 4
5EXTRA_CFLAGS := -Iarch/x86/kernel 5EXTRA_CFLAGS := -Iarch/x86/kernel
6 6
7obj-y := probe.o summit.o bigsmp.o es7000.o default.o 7obj-y := probe.o default.o
8obj-y += ../../x86/mach-es7000/ 8obj-$(CONFIG_X86_NUMAQ) += numaq.o
9obj-$(CONFIG_X86_SUMMIT) += summit.o
10obj-$(CONFIG_X86_BIGSMP) += bigsmp.o
11obj-$(CONFIG_X86_ES7000) += es7000.o
12obj-$(CONFIG_X86_ES7000) += ../../x86/mach-es7000/
diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c
index 95fc463056d0..59d771714559 100644
--- a/arch/x86/mach-generic/bigsmp.c
+++ b/arch/x86/mach-generic/bigsmp.c
@@ -23,10 +23,8 @@ static int dmi_bigsmp; /* can be set by dmi scanners */
23 23
24static int hp_ht_bigsmp(const struct dmi_system_id *d) 24static int hp_ht_bigsmp(const struct dmi_system_id *d)
25{ 25{
26#ifdef CONFIG_X86_GENERICARCH
27 printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident); 26 printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
28 dmi_bigsmp = 1; 27 dmi_bigsmp = 1;
29#endif
30 return 0; 28 return 0;
31} 29}
32 30
@@ -48,7 +46,7 @@ static const struct dmi_system_id bigsmp_dmi_table[] = {
48static int probe_bigsmp(void) 46static int probe_bigsmp(void)
49{ 47{
50 if (def_to_bigsmp) 48 if (def_to_bigsmp)
51 dmi_bigsmp = 1; 49 dmi_bigsmp = 1;
52 else 50 else
53 dmi_check_system(bigsmp_dmi_table); 51 dmi_check_system(bigsmp_dmi_table);
54 return dmi_bigsmp; 52 return dmi_bigsmp;
diff --git a/arch/x86/mach-generic/numaq.c b/arch/x86/mach-generic/numaq.c
new file mode 100644
index 000000000000..8091e68764c4
--- /dev/null
+++ b/arch/x86/mach-generic/numaq.c
@@ -0,0 +1,41 @@
1/*
2 * APIC driver for the IBM NUMAQ chipset.
3 */
4#define APIC_DEFINITION 1
5#include <linux/threads.h>
6#include <linux/cpumask.h>
7#include <linux/smp.h>
8#include <asm/mpspec.h>
9#include <asm/genapic.h>
10#include <asm/fixmap.h>
11#include <asm/apicdef.h>
12#include <linux/kernel.h>
13#include <linux/string.h>
14#include <linux/init.h>
15#include <asm/mach-numaq/mach_apic.h>
16#include <asm/mach-numaq/mach_apicdef.h>
17#include <asm/mach-numaq/mach_ipi.h>
18#include <asm/mach-numaq/mach_mpparse.h>
19#include <asm/mach-numaq/mach_wakecpu.h>
20#include <asm/numaq.h>
21
22static int mps_oem_check(struct mp_config_table *mpc, char *oem,
23 char *productid)
24{
25 numaq_mps_oem_check(mpc, oem, productid);
26 return found_numaq;
27}
28
29static int probe_numaq(void)
30{
31 /* already know from get_memcfg_numaq() */
32 return found_numaq;
33}
34
35/* Hook from generic ACPI tables.c */
36static int acpi_madt_oem_check(char *oem_id, char *oem_table_id)
37{
38 return 0;
39}
40
41struct genapic apic_numaq = APIC_INIT("NUMAQ", probe_numaq);
diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c
index c5ae751b994a..5a7e4619e1c4 100644
--- a/arch/x86/mach-generic/probe.c
+++ b/arch/x86/mach-generic/probe.c
@@ -16,6 +16,7 @@
16#include <asm/apicdef.h> 16#include <asm/apicdef.h>
17#include <asm/genapic.h> 17#include <asm/genapic.h>
18 18
19extern struct genapic apic_numaq;
19extern struct genapic apic_summit; 20extern struct genapic apic_summit;
20extern struct genapic apic_bigsmp; 21extern struct genapic apic_bigsmp;
21extern struct genapic apic_es7000; 22extern struct genapic apic_es7000;
@@ -24,9 +25,18 @@ extern struct genapic apic_default;
24struct genapic *genapic = &apic_default; 25struct genapic *genapic = &apic_default;
25 26
26static struct genapic *apic_probe[] __initdata = { 27static struct genapic *apic_probe[] __initdata = {
28#ifdef CONFIG_X86_NUMAQ
29 &apic_numaq,
30#endif
31#ifdef CONFIG_X86_SUMMIT
27 &apic_summit, 32 &apic_summit,
33#endif
34#ifdef CONFIG_X86_BIGSMP
28 &apic_bigsmp, 35 &apic_bigsmp,
36#endif
37#ifdef CONFIG_X86_ES7000
29 &apic_es7000, 38 &apic_es7000,
39#endif
30 &apic_default, /* must be last */ 40 &apic_default, /* must be last */
31 NULL, 41 NULL,
32}; 42};
@@ -54,6 +64,7 @@ early_param("apic", parse_apic);
54 64
55void __init generic_bigsmp_probe(void) 65void __init generic_bigsmp_probe(void)
56{ 66{
67#ifdef CONFIG_X86_BIGSMP
57 /* 68 /*
58 * This routine is used to switch to bigsmp mode when 69 * This routine is used to switch to bigsmp mode when
59 * - There is no apic= option specified by the user 70 * - There is no apic= option specified by the user
@@ -67,6 +78,7 @@ void __init generic_bigsmp_probe(void)
67 printk(KERN_INFO "Overriding APIC driver with %s\n", 78 printk(KERN_INFO "Overriding APIC driver with %s\n",
68 genapic->name); 79 genapic->name);
69 } 80 }
81#endif
70} 82}
71 83
72void __init generic_apic_probe(void) 84void __init generic_apic_probe(void)
@@ -88,7 +100,8 @@ void __init generic_apic_probe(void)
88 100
89/* These functions can switch the APIC even after the initial ->probe() */ 101/* These functions can switch the APIC even after the initial ->probe() */
90 102
91int __init mps_oem_check(struct mp_config_table *mpc, char *oem, char *productid) 103int __init mps_oem_check(struct mp_config_table *mpc, char *oem,
104 char *productid)
92{ 105{
93 int i; 106 int i;
94 for (i = 0; apic_probe[i]; ++i) { 107 for (i = 0; apic_probe[i]; ++i) {
diff --git a/arch/x86/mach-visws/Makefile b/arch/x86/mach-visws/Makefile
deleted file mode 100644
index 835fd96ad768..000000000000
--- a/arch/x86/mach-visws/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
1#
2# Makefile for the linux kernel.
3#
4
5obj-y := setup.o traps.o reboot.o
6
7obj-$(CONFIG_X86_VISWS_APIC) += visws_apic.o
8obj-$(CONFIG_X86_LOCAL_APIC) += mpparse.o
diff --git a/arch/x86/mach-visws/mpparse.c b/arch/x86/mach-visws/mpparse.c
deleted file mode 100644
index 57484e91ab90..000000000000
--- a/arch/x86/mach-visws/mpparse.c
+++ /dev/null
@@ -1,88 +0,0 @@
1
2#include <linux/init.h>
3#include <linux/smp.h>
4
5#include <asm/smp.h>
6#include <asm/io.h>
7
8#include "cobalt.h"
9#include "mach_apic.h"
10
11/* Have we found an MP table */
12int smp_found_config;
13
14int pic_mode;
15
16extern unsigned int __cpuinitdata maxcpus;
17
18/*
19 * The Visual Workstation is Intel MP compliant in the hardware
20 * sense, but it doesn't have a BIOS(-configuration table).
21 * No problem for Linux.
22 */
23
24static void __init MP_processor_info (struct mpc_config_processor *m)
25{
26 int ver, logical_apicid;
27 physid_mask_t apic_cpus;
28
29 if (!(m->mpc_cpuflag & CPU_ENABLED))
30 return;
31
32 logical_apicid = m->mpc_apicid;
33 printk(KERN_INFO "%sCPU #%d %u:%u APIC version %d\n",
34 m->mpc_cpuflag & CPU_BOOTPROCESSOR ? "Bootup " : "",
35 m->mpc_apicid,
36 (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
37 (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
38 m->mpc_apicver);
39
40 if (m->mpc_cpuflag & CPU_BOOTPROCESSOR)
41 boot_cpu_physical_apicid = m->mpc_apicid;
42
43 ver = m->mpc_apicver;
44 if ((ver >= 0x14 && m->mpc_apicid >= 0xff) || m->mpc_apicid >= 0xf) {
45 printk(KERN_ERR "Processor #%d INVALID. (Max ID: %d).\n",
46 m->mpc_apicid, MAX_APICS);
47 return;
48 }
49
50 apic_cpus = apicid_to_cpu_present(m->mpc_apicid);
51 physids_or(phys_cpu_present_map, phys_cpu_present_map, apic_cpus);
52 /*
53 * Validate version
54 */
55 if (ver == 0x0) {
56 printk(KERN_ERR "BIOS bug, APIC version is 0 for CPU#%d! "
57 "fixing up to 0x10. (tell your hw vendor)\n",
58 m->mpc_apicid);
59 ver = 0x10;
60 }
61 apic_version[m->mpc_apicid] = ver;
62}
63
64void __init find_smp_config(void)
65{
66 struct mpc_config_processor *mp = phys_to_virt(CO_CPU_TAB_PHYS);
67 unsigned short ncpus = readw(phys_to_virt(CO_CPU_NUM_PHYS));
68
69 if (ncpus > CO_CPU_MAX) {
70 printk(KERN_WARNING "find_visws_smp: got cpu count of %d at %p\n",
71 ncpus, mp);
72
73 ncpus = CO_CPU_MAX;
74 }
75
76 if (ncpus > maxcpus)
77 ncpus = maxcpus;
78
79 smp_found_config = 1;
80 while (ncpus--)
81 MP_processor_info(mp++);
82
83 mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
84}
85
86void __init get_smp_config (void)
87{
88}
diff --git a/arch/x86/mach-visws/reboot.c b/arch/x86/mach-visws/reboot.c
deleted file mode 100644
index 99332abfad42..000000000000
--- a/arch/x86/mach-visws/reboot.c
+++ /dev/null
@@ -1,55 +0,0 @@
1#include <linux/module.h>
2#include <linux/smp.h>
3#include <linux/delay.h>
4
5#include <asm/io.h>
6#include "piix4.h"
7
8void (*pm_power_off)(void);
9EXPORT_SYMBOL(pm_power_off);
10
11void machine_shutdown(void)
12{
13#ifdef CONFIG_SMP
14 smp_send_stop();
15#endif
16}
17
18void machine_emergency_restart(void)
19{
20 /*
21 * Visual Workstations restart after this
22 * register is poked on the PIIX4
23 */
24 outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT);
25}
26
27void machine_restart(char * __unused)
28{
29 machine_shutdown();
30 machine_emergency_restart();
31}
32
33void machine_power_off(void)
34{
35 unsigned short pm_status;
36 extern unsigned int pci_bus0;
37
38 while ((pm_status = inw(PMSTS_PORT)) & 0x100)
39 outw(pm_status, PMSTS_PORT);
40
41 outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT);
42
43 mdelay(10);
44
45#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
46 (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
47
48 outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8);
49 outl(PIIX_SPECIAL_STOP, 0xCFC);
50}
51
52void machine_halt(void)
53{
54}
55
diff --git a/arch/x86/mach-visws/setup.c b/arch/x86/mach-visws/setup.c
deleted file mode 100644
index de4c9dbd086f..000000000000
--- a/arch/x86/mach-visws/setup.c
+++ /dev/null
@@ -1,183 +0,0 @@
1/*
2 * Unmaintained SGI Visual Workstation support.
3 * Split out from setup.c by davej@suse.de
4 */
5
6#include <linux/smp.h>
7#include <linux/init.h>
8#include <linux/interrupt.h>
9#include <linux/module.h>
10
11#include <asm/fixmap.h>
12#include <asm/arch_hooks.h>
13#include <asm/io.h>
14#include <asm/e820.h>
15#include <asm/setup.h>
16#include "cobalt.h"
17#include "piix4.h"
18
19int no_broadcast;
20
21char visws_board_type = -1;
22char visws_board_rev = -1;
23
24void __init visws_get_board_type_and_rev(void)
25{
26 int raw;
27
28 visws_board_type = (char)(inb_p(PIIX_GPI_BD_REG) & PIIX_GPI_BD_REG)
29 >> PIIX_GPI_BD_SHIFT;
30 /*
31 * Get Board rev.
32 * First, we have to initialize the 307 part to allow us access
33 * to the GPIO registers. Let's map them at 0x0fc0 which is right
34 * after the PIIX4 PM section.
35 */
36 outb_p(SIO_DEV_SEL, SIO_INDEX);
37 outb_p(SIO_GP_DEV, SIO_DATA); /* Talk to GPIO regs. */
38
39 outb_p(SIO_DEV_MSB, SIO_INDEX);
40 outb_p(SIO_GP_MSB, SIO_DATA); /* MSB of GPIO base address */
41
42 outb_p(SIO_DEV_LSB, SIO_INDEX);
43 outb_p(SIO_GP_LSB, SIO_DATA); /* LSB of GPIO base address */
44
45 outb_p(SIO_DEV_ENB, SIO_INDEX);
46 outb_p(1, SIO_DATA); /* Enable GPIO registers. */
47
48 /*
49 * Now, we have to map the power management section to write
50 * a bit which enables access to the GPIO registers.
51 * What lunatic came up with this shit?
52 */
53 outb_p(SIO_DEV_SEL, SIO_INDEX);
54 outb_p(SIO_PM_DEV, SIO_DATA); /* Talk to GPIO regs. */
55
56 outb_p(SIO_DEV_MSB, SIO_INDEX);
57 outb_p(SIO_PM_MSB, SIO_DATA); /* MSB of PM base address */
58
59 outb_p(SIO_DEV_LSB, SIO_INDEX);
60 outb_p(SIO_PM_LSB, SIO_DATA); /* LSB of PM base address */
61
62 outb_p(SIO_DEV_ENB, SIO_INDEX);
63 outb_p(1, SIO_DATA); /* Enable PM registers. */
64
65 /*
66 * Now, write the PM register which enables the GPIO registers.
67 */
68 outb_p(SIO_PM_FER2, SIO_PM_INDEX);
69 outb_p(SIO_PM_GP_EN, SIO_PM_DATA);
70
71 /*
72 * Now, initialize the GPIO registers.
73 * We want them all to be inputs which is the
74 * power on default, so let's leave them alone.
75 * So, let's just read the board rev!
76 */
77 raw = inb_p(SIO_GP_DATA1);
78 raw &= 0x7f; /* 7 bits of valid board revision ID. */
79
80 if (visws_board_type == VISWS_320) {
81 if (raw < 0x6) {
82 visws_board_rev = 4;
83 } else if (raw < 0xc) {
84 visws_board_rev = 5;
85 } else {
86 visws_board_rev = 6;
87 }
88 } else if (visws_board_type == VISWS_540) {
89 visws_board_rev = 2;
90 } else {
91 visws_board_rev = raw;
92 }
93
94 printk(KERN_INFO "Silicon Graphics Visual Workstation %s (rev %d) detected\n",
95 (visws_board_type == VISWS_320 ? "320" :
96 (visws_board_type == VISWS_540 ? "540" :
97 "unknown")), visws_board_rev);
98}
99
100void __init pre_intr_init_hook(void)
101{
102 init_VISWS_APIC_irqs();
103}
104
105void __init intr_init_hook(void)
106{
107#ifdef CONFIG_X86_LOCAL_APIC
108 apic_intr_init();
109#endif
110}
111
112void __init pre_setup_arch_hook()
113{
114 visws_get_board_type_and_rev();
115}
116
117static struct irqaction irq0 = {
118 .handler = timer_interrupt,
119 .flags = IRQF_DISABLED | IRQF_IRQPOLL,
120 .name = "timer",
121};
122
123void __init time_init_hook(void)
124{
125 printk(KERN_INFO "Starting Cobalt Timer system clock\n");
126
127 /* Set the countdown value */
128 co_cpu_write(CO_CPU_TIMEVAL, CO_TIME_HZ/HZ);
129
130 /* Start the timer */
131 co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) | CO_CTRL_TIMERUN);
132
133 /* Enable (unmask) the timer interrupt */
134 co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) & ~CO_CTRL_TIMEMASK);
135
136 /* Wire cpu IDT entry to s/w handler (and Cobalt APIC to IDT) */
137 setup_irq(0, &irq0);
138}
139
140/* Hook for machine specific memory setup. */
141
142#define MB (1024 * 1024)
143
144unsigned long sgivwfb_mem_phys;
145unsigned long sgivwfb_mem_size;
146EXPORT_SYMBOL(sgivwfb_mem_phys);
147EXPORT_SYMBOL(sgivwfb_mem_size);
148
149long long mem_size __initdata = 0;
150
151char * __init machine_specific_memory_setup(void)
152{
153 long long gfx_mem_size = 8 * MB;
154
155 mem_size = boot_params.alt_mem_k;
156
157 if (!mem_size) {
158 printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n");
159 mem_size = 128 * MB;
160 }
161
162 /*
163 * this hardcodes the graphics memory to 8 MB
164 * it really should be sized dynamically (or at least
165 * set as a boot param)
166 */
167 if (!sgivwfb_mem_size) {
168 printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n");
169 sgivwfb_mem_size = 8 * MB;
170 }
171
172 /*
173 * Trim to nearest MB
174 */
175 sgivwfb_mem_size &= ~((1 << 20) - 1);
176 sgivwfb_mem_phys = mem_size - gfx_mem_size;
177
178 add_memory_region(0, LOWMEMSIZE(), E820_RAM);
179 add_memory_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
180 add_memory_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
181
182 return "PROM";
183}
diff --git a/arch/x86/mach-visws/traps.c b/arch/x86/mach-visws/traps.c
deleted file mode 100644
index bfac6ba10f8a..000000000000
--- a/arch/x86/mach-visws/traps.c
+++ /dev/null
@@ -1,69 +0,0 @@
1/* VISWS traps */
2
3#include <linux/sched.h>
4#include <linux/kernel.h>
5#include <linux/init.h>
6#include <linux/pci.h>
7#include <linux/pci_ids.h>
8
9#include <asm/io.h>
10#include <asm/arch_hooks.h>
11#include <asm/apic.h>
12#include "cobalt.h"
13#include "lithium.h"
14
15
16#define A01234 (LI_INTA_0 | LI_INTA_1 | LI_INTA_2 | LI_INTA_3 | LI_INTA_4)
17#define BCD (LI_INTB | LI_INTC | LI_INTD)
18#define ALLDEVS (A01234 | BCD)
19
20static __init void lithium_init(void)
21{
22 set_fixmap(FIX_LI_PCIA, LI_PCI_A_PHYS);
23 set_fixmap(FIX_LI_PCIB, LI_PCI_B_PHYS);
24
25 if ((li_pcia_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
26 (li_pcia_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) {
27 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'A');
28 panic("This machine is not SGI Visual Workstation 320/540");
29 }
30
31 if ((li_pcib_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
32 (li_pcib_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) {
33 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'B');
34 panic("This machine is not SGI Visual Workstation 320/540");
35 }
36
37 li_pcia_write16(LI_PCI_INTEN, ALLDEVS);
38 li_pcib_write16(LI_PCI_INTEN, ALLDEVS);
39}
40
41static __init void cobalt_init(void)
42{
43 /*
44 * On normal SMP PC this is used only with SMP, but we have to
45 * use it and set it up here to start the Cobalt clock
46 */
47 set_fixmap(FIX_APIC_BASE, APIC_DEFAULT_PHYS_BASE);
48 setup_local_APIC();
49 printk(KERN_INFO "Local APIC Version %#x, ID %#x\n",
50 (unsigned int)apic_read(APIC_LVR),
51 (unsigned int)apic_read(APIC_ID));
52
53 set_fixmap(FIX_CO_CPU, CO_CPU_PHYS);
54 set_fixmap(FIX_CO_APIC, CO_APIC_PHYS);
55 printk(KERN_INFO "Cobalt Revision %#lx, APIC ID %#lx\n",
56 co_cpu_read(CO_CPU_REV), co_apic_read(CO_APIC_ID));
57
58 /* Enable Cobalt APIC being careful to NOT change the ID! */
59 co_apic_write(CO_APIC_ID, co_apic_read(CO_APIC_ID) | CO_APIC_ENABLE);
60
61 printk(KERN_INFO "Cobalt APIC enabled: ID reg %#lx\n",
62 co_apic_read(CO_APIC_ID));
63}
64
65void __init trap_init_hook(void)
66{
67 lithium_init();
68 cobalt_init();
69}
diff --git a/arch/x86/mach-visws/visws_apic.c b/arch/x86/mach-visws/visws_apic.c
deleted file mode 100644
index cef9cb1d15ac..000000000000
--- a/arch/x86/mach-visws/visws_apic.c
+++ /dev/null
@@ -1,297 +0,0 @@
1/*
2 * Copyright (C) 1999 Bent Hagemark, Ingo Molnar
3 *
4 * SGI Visual Workstation interrupt controller
5 *
6 * The Cobalt system ASIC in the Visual Workstation contains a "Cobalt" APIC
7 * which serves as the main interrupt controller in the system. Non-legacy
8 * hardware in the system uses this controller directly. Legacy devices
9 * are connected to the PIIX4 which in turn has its 8259(s) connected to
10 * a of the Cobalt APIC entry.
11 *
12 * 09/02/2000 - Updated for 2.4 by jbarnes@sgi.com
13 *
14 * 25/11/2002 - Updated for 2.5 by Andrey Panin <pazke@orbita1.ru>
15 */
16
17#include <linux/kernel_stat.h>
18#include <linux/interrupt.h>
19#include <linux/init.h>
20
21#include <asm/io.h>
22#include <asm/apic.h>
23#include <asm/i8259.h>
24
25#include "cobalt.h"
26#include "irq_vectors.h"
27
28
29static DEFINE_SPINLOCK(cobalt_lock);
30
31/*
32 * Set the given Cobalt APIC Redirection Table entry to point
33 * to the given IDT vector/index.
34 */
35static inline void co_apic_set(int entry, int irq)
36{
37 co_apic_write(CO_APIC_LO(entry), CO_APIC_LEVEL | (irq + FIRST_EXTERNAL_VECTOR));
38 co_apic_write(CO_APIC_HI(entry), 0);
39}
40
41/*
42 * Cobalt (IO)-APIC functions to handle PCI devices.
43 */
44static inline int co_apic_ide0_hack(void)
45{
46 extern char visws_board_type;
47 extern char visws_board_rev;
48
49 if (visws_board_type == VISWS_320 && visws_board_rev == 5)
50 return 5;
51 return CO_APIC_IDE0;
52}
53
54static int is_co_apic(unsigned int irq)
55{
56 if (IS_CO_APIC(irq))
57 return CO_APIC(irq);
58
59 switch (irq) {
60 case 0: return CO_APIC_CPU;
61 case CO_IRQ_IDE0: return co_apic_ide0_hack();
62 case CO_IRQ_IDE1: return CO_APIC_IDE1;
63 default: return -1;
64 }
65}
66
67
68/*
69 * This is the SGI Cobalt (IO-)APIC:
70 */
71
72static void enable_cobalt_irq(unsigned int irq)
73{
74 co_apic_set(is_co_apic(irq), irq);
75}
76
77static void disable_cobalt_irq(unsigned int irq)
78{
79 int entry = is_co_apic(irq);
80
81 co_apic_write(CO_APIC_LO(entry), CO_APIC_MASK);
82 co_apic_read(CO_APIC_LO(entry));
83}
84
85/*
86 * "irq" really just serves to identify the device. Here is where we
87 * map this to the Cobalt APIC entry where it's physically wired.
88 * This is called via request_irq -> setup_irq -> irq_desc->startup()
89 */
90static unsigned int startup_cobalt_irq(unsigned int irq)
91{
92 unsigned long flags;
93
94 spin_lock_irqsave(&cobalt_lock, flags);
95 if ((irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS | IRQ_WAITING)))
96 irq_desc[irq].status &= ~(IRQ_DISABLED | IRQ_INPROGRESS | IRQ_WAITING);
97 enable_cobalt_irq(irq);
98 spin_unlock_irqrestore(&cobalt_lock, flags);
99 return 0;
100}
101
102static void ack_cobalt_irq(unsigned int irq)
103{
104 unsigned long flags;
105
106 spin_lock_irqsave(&cobalt_lock, flags);
107 disable_cobalt_irq(irq);
108 apic_write(APIC_EOI, APIC_EIO_ACK);
109 spin_unlock_irqrestore(&cobalt_lock, flags);
110}
111
112static void end_cobalt_irq(unsigned int irq)
113{
114 unsigned long flags;
115
116 spin_lock_irqsave(&cobalt_lock, flags);
117 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
118 enable_cobalt_irq(irq);
119 spin_unlock_irqrestore(&cobalt_lock, flags);
120}
121
122static struct irq_chip cobalt_irq_type = {
123 .typename = "Cobalt-APIC",
124 .startup = startup_cobalt_irq,
125 .shutdown = disable_cobalt_irq,
126 .enable = enable_cobalt_irq,
127 .disable = disable_cobalt_irq,
128 .ack = ack_cobalt_irq,
129 .end = end_cobalt_irq,
130};
131
132
133/*
134 * This is the PIIX4-based 8259 that is wired up indirectly to Cobalt
135 * -- not the manner expected by the code in i8259.c.
136 *
137 * there is a 'master' physical interrupt source that gets sent to
138 * the CPU. But in the chipset there are various 'virtual' interrupts
139 * waiting to be handled. We represent this to Linux through a 'master'
140 * interrupt controller type, and through a special virtual interrupt-
141 * controller. Device drivers only see the virtual interrupt sources.
142 */
143static unsigned int startup_piix4_master_irq(unsigned int irq)
144{
145 init_8259A(0);
146
147 return startup_cobalt_irq(irq);
148}
149
150static void end_piix4_master_irq(unsigned int irq)
151{
152 unsigned long flags;
153
154 spin_lock_irqsave(&cobalt_lock, flags);
155 enable_cobalt_irq(irq);
156 spin_unlock_irqrestore(&cobalt_lock, flags);
157}
158
159static struct irq_chip piix4_master_irq_type = {
160 .typename = "PIIX4-master",
161 .startup = startup_piix4_master_irq,
162 .ack = ack_cobalt_irq,
163 .end = end_piix4_master_irq,
164};
165
166
167static struct irq_chip piix4_virtual_irq_type = {
168 .typename = "PIIX4-virtual",
169 .shutdown = disable_8259A_irq,
170 .enable = enable_8259A_irq,
171 .disable = disable_8259A_irq,
172};
173
174
175/*
176 * PIIX4-8259 master/virtual functions to handle interrupt requests
177 * from legacy devices: floppy, parallel, serial, rtc.
178 *
179 * None of these get Cobalt APIC entries, neither do they have IDT
180 * entries. These interrupts are purely virtual and distributed from
181 * the 'master' interrupt source: CO_IRQ_8259.
182 *
183 * When the 8259 interrupts its handler figures out which of these
184 * devices is interrupting and dispatches to its handler.
185 *
186 * CAREFUL: devices see the 'virtual' interrupt only. Thus disable/
187 * enable_irq gets the right irq. This 'master' irq is never directly
188 * manipulated by any driver.
189 */
190static irqreturn_t piix4_master_intr(int irq, void *dev_id)
191{
192 int realirq;
193 irq_desc_t *desc;
194 unsigned long flags;
195
196 spin_lock_irqsave(&i8259A_lock, flags);
197
198 /* Find out what's interrupting in the PIIX4 master 8259 */
199 outb(0x0c, 0x20); /* OCW3 Poll command */
200 realirq = inb(0x20);
201
202 /*
203 * Bit 7 == 0 means invalid/spurious
204 */
205 if (unlikely(!(realirq & 0x80)))
206 goto out_unlock;
207
208 realirq &= 7;
209
210 if (unlikely(realirq == 2)) {
211 outb(0x0c, 0xa0);
212 realirq = inb(0xa0);
213
214 if (unlikely(!(realirq & 0x80)))
215 goto out_unlock;
216
217 realirq = (realirq & 7) + 8;
218 }
219
220 /* mask and ack interrupt */
221 cached_irq_mask |= 1 << realirq;
222 if (unlikely(realirq > 7)) {
223 inb(0xa1);
224 outb(cached_slave_mask, 0xa1);
225 outb(0x60 + (realirq & 7), 0xa0);
226 outb(0x60 + 2, 0x20);
227 } else {
228 inb(0x21);
229 outb(cached_master_mask, 0x21);
230 outb(0x60 + realirq, 0x20);
231 }
232
233 spin_unlock_irqrestore(&i8259A_lock, flags);
234
235 desc = irq_desc + realirq;
236
237 /*
238 * handle this 'virtual interrupt' as a Cobalt one now.
239 */
240 kstat_cpu(smp_processor_id()).irqs[realirq]++;
241
242 if (likely(desc->action != NULL))
243 handle_IRQ_event(realirq, desc->action);
244
245 if (!(desc->status & IRQ_DISABLED))
246 enable_8259A_irq(realirq);
247
248 return IRQ_HANDLED;
249
250out_unlock:
251 spin_unlock_irqrestore(&i8259A_lock, flags);
252 return IRQ_NONE;
253}
254
255static struct irqaction master_action = {
256 .handler = piix4_master_intr,
257 .name = "PIIX4-8259",
258};
259
260static struct irqaction cascade_action = {
261 .handler = no_action,
262 .name = "cascade",
263};
264
265
266void init_VISWS_APIC_irqs(void)
267{
268 int i;
269
270 for (i = 0; i < CO_IRQ_APIC0 + CO_APIC_LAST + 1; i++) {
271 irq_desc[i].status = IRQ_DISABLED;
272 irq_desc[i].action = 0;
273 irq_desc[i].depth = 1;
274
275 if (i == 0) {
276 irq_desc[i].chip = &cobalt_irq_type;
277 }
278 else if (i == CO_IRQ_IDE0) {
279 irq_desc[i].chip = &cobalt_irq_type;
280 }
281 else if (i == CO_IRQ_IDE1) {
282 irq_desc[i].chip = &cobalt_irq_type;
283 }
284 else if (i == CO_IRQ_8259) {
285 irq_desc[i].chip = &piix4_master_irq_type;
286 }
287 else if (i < CO_IRQ_APIC0) {
288 irq_desc[i].chip = &piix4_virtual_irq_type;
289 }
290 else if (IS_CO_APIC(i)) {
291 irq_desc[i].chip = &cobalt_irq_type;
292 }
293 }
294
295 setup_irq(CO_IRQ_8259, &master_action);
296 setup_irq(2, &cascade_action);
297}
diff --git a/arch/x86/mach-voyager/setup.c b/arch/x86/mach-voyager/setup.c
index 5ae5466b9eb9..6bbdd633864c 100644
--- a/arch/x86/mach-voyager/setup.c
+++ b/arch/x86/mach-voyager/setup.c
@@ -62,6 +62,7 @@ void __init time_init_hook(void)
62char *__init machine_specific_memory_setup(void) 62char *__init machine_specific_memory_setup(void)
63{ 63{
64 char *who; 64 char *who;
65 int new_nr;
65 66
66 who = "NOT VOYAGER"; 67 who = "NOT VOYAGER";
67 68
@@ -73,7 +74,7 @@ char *__init machine_specific_memory_setup(void)
73 74
74 e820.nr_map = 0; 75 e820.nr_map = 0;
75 for (i = 0; voyager_memory_detect(i, &addr, &length); i++) { 76 for (i = 0; voyager_memory_detect(i, &addr, &length); i++) {
76 add_memory_region(addr, length, E820_RAM); 77 e820_add_region(addr, length, E820_RAM);
77 } 78 }
78 return who; 79 return who;
79 } else if (voyager_level == 4) { 80 } else if (voyager_level == 4) {
@@ -91,43 +92,17 @@ char *__init machine_specific_memory_setup(void)
91 tom = (boot_params.screen_info.ext_mem_k) << 10; 92 tom = (boot_params.screen_info.ext_mem_k) << 10;
92 } 93 }
93 who = "Voyager-TOM"; 94 who = "Voyager-TOM";
94 add_memory_region(0, 0x9f000, E820_RAM); 95 e820_add_region(0, 0x9f000, E820_RAM);
95 /* map from 1M to top of memory */ 96 /* map from 1M to top of memory */
96 add_memory_region(1 * 1024 * 1024, tom - 1 * 1024 * 1024, 97 e820_add_region(1 * 1024 * 1024, tom - 1 * 1024 * 1024,
97 E820_RAM); 98 E820_RAM);
98 /* FIXME: Should check the ASICs to see if I need to 99 /* FIXME: Should check the ASICs to see if I need to
99 * take out the 8M window. Just do it at the moment 100 * take out the 8M window. Just do it at the moment
100 * */ 101 * */
101 add_memory_region(8 * 1024 * 1024, 8 * 1024 * 1024, 102 e820_add_region(8 * 1024 * 1024, 8 * 1024 * 1024,
102 E820_RESERVED); 103 E820_RESERVED);
103 return who; 104 return who;
104 } 105 }
105 106
106 who = "BIOS-e820"; 107 return default_machine_specific_memory_setup();
107
108 /*
109 * Try to copy the BIOS-supplied E820-map.
110 *
111 * Otherwise fake a memory map; one section from 0k->640k,
112 * the next section from 1mb->appropriate_mem_k
113 */
114 sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
115 if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries)
116 < 0) {
117 unsigned long mem_size;
118
119 /* compare results from other methods and take the greater */
120 if (boot_params.alt_mem_k < boot_params.screen_info.ext_mem_k) {
121 mem_size = boot_params.screen_info.ext_mem_k;
122 who = "BIOS-88";
123 } else {
124 mem_size = boot_params.alt_mem_k;
125 who = "BIOS-e801";
126 }
127
128 e820.nr_map = 0;
129 add_memory_region(0, LOWMEMSIZE(), E820_RAM);
130 add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
131 }
132 return who;
133} 108}
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 8acbf0cdf1a5..ee0fba092157 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -59,11 +59,6 @@ __u32 voyager_quad_processors = 0;
59 * activity count. Finally exported by i386_ksyms.c */ 59 * activity count. Finally exported by i386_ksyms.c */
60static int voyager_extended_cpus = 1; 60static int voyager_extended_cpus = 1;
61 61
62/* Have we found an SMP box - used by time.c to do the profiling
63 interrupt for timeslicing; do not set to 1 until the per CPU timer
64 interrupt is active */
65int smp_found_config = 0;
66
67/* Used for the invalidate map that's also checked in the spinlock */ 62/* Used for the invalidate map that's also checked in the spinlock */
68static volatile unsigned long smp_invalidate_needed; 63static volatile unsigned long smp_invalidate_needed;
69 64
@@ -955,94 +950,24 @@ static void smp_stop_cpu_function(void *dummy)
955 halt(); 950 halt();
956} 951}
957 952
958static DEFINE_SPINLOCK(call_lock);
959
960struct call_data_struct {
961 void (*func) (void *info);
962 void *info;
963 volatile unsigned long started;
964 volatile unsigned long finished;
965 int wait;
966};
967
968static struct call_data_struct *call_data;
969
970/* execute a thread on a new CPU. The function to be called must be 953/* execute a thread on a new CPU. The function to be called must be
971 * previously set up. This is used to schedule a function for 954 * previously set up. This is used to schedule a function for
972 * execution on all CPUs - set up the function then broadcast a 955 * execution on all CPUs - set up the function then broadcast a
973 * function_interrupt CPI to come here on each CPU */ 956 * function_interrupt CPI to come here on each CPU */
974static void smp_call_function_interrupt(void) 957static void smp_call_function_interrupt(void)
975{ 958{
976 void (*func) (void *info) = call_data->func;
977 void *info = call_data->info;
978 /* must take copy of wait because call_data may be replaced
979 * unless the function is waiting for us to finish */
980 int wait = call_data->wait;
981 __u8 cpu = smp_processor_id();
982
983 /*
984 * Notify initiating CPU that I've grabbed the data and am
985 * about to execute the function
986 */
987 mb();
988 if (!test_and_clear_bit(cpu, &call_data->started)) {
989 /* If the bit wasn't set, this could be a replay */
990 printk(KERN_WARNING "VOYAGER SMP: CPU %d received call funtion"
991 " with no call pending\n", cpu);
992 return;
993 }
994 /*
995 * At this point the info structure may be out of scope unless wait==1
996 */
997 irq_enter(); 959 irq_enter();
998 (*func) (info); 960 generic_smp_call_function_interrupt();
999 __get_cpu_var(irq_stat).irq_call_count++; 961 __get_cpu_var(irq_stat).irq_call_count++;
1000 irq_exit(); 962 irq_exit();
1001 if (wait) {
1002 mb();
1003 clear_bit(cpu, &call_data->finished);
1004 }
1005} 963}
1006 964
1007static int 965static void smp_call_function_single_interrupt(void)
1008voyager_smp_call_function_mask(cpumask_t cpumask,
1009 void (*func) (void *info), void *info, int wait)
1010{ 966{
1011 struct call_data_struct data; 967 irq_enter();
1012 u32 mask = cpus_addr(cpumask)[0]; 968 generic_smp_call_function_single_interrupt();
1013 969 __get_cpu_var(irq_stat).irq_call_count++;
1014 mask &= ~(1 << smp_processor_id()); 970 irq_exit();
1015
1016 if (!mask)
1017 return 0;
1018
1019 /* Can deadlock when called with interrupts disabled */
1020 WARN_ON(irqs_disabled());
1021
1022 data.func = func;
1023 data.info = info;
1024 data.started = mask;
1025 data.wait = wait;
1026 if (wait)
1027 data.finished = mask;
1028
1029 spin_lock(&call_lock);
1030 call_data = &data;
1031 wmb();
1032 /* Send a message to all other CPUs and wait for them to respond */
1033 send_CPI(mask, VIC_CALL_FUNCTION_CPI);
1034
1035 /* Wait for response */
1036 while (data.started)
1037 barrier();
1038
1039 if (wait)
1040 while (data.finished)
1041 barrier();
1042
1043 spin_unlock(&call_lock);
1044
1045 return 0;
1046} 971}
1047 972
1048/* Sorry about the name. In an APIC based system, the APICs 973/* Sorry about the name. In an APIC based system, the APICs
@@ -1099,6 +1024,12 @@ void smp_qic_call_function_interrupt(struct pt_regs *regs)
1099 smp_call_function_interrupt(); 1024 smp_call_function_interrupt();
1100} 1025}
1101 1026
1027void smp_qic_call_function_single_interrupt(struct pt_regs *regs)
1028{
1029 ack_QIC_CPI(QIC_CALL_FUNCTION_SINGLE_CPI);
1030 smp_call_function_single_interrupt();
1031}
1032
1102void smp_vic_cpi_interrupt(struct pt_regs *regs) 1033void smp_vic_cpi_interrupt(struct pt_regs *regs)
1103{ 1034{
1104 struct pt_regs *old_regs = set_irq_regs(regs); 1035 struct pt_regs *old_regs = set_irq_regs(regs);
@@ -1119,6 +1050,8 @@ void smp_vic_cpi_interrupt(struct pt_regs *regs)
1119 smp_enable_irq_interrupt(); 1050 smp_enable_irq_interrupt();
1120 if (test_and_clear_bit(VIC_CALL_FUNCTION_CPI, &vic_cpi_mailbox[cpu])) 1051 if (test_and_clear_bit(VIC_CALL_FUNCTION_CPI, &vic_cpi_mailbox[cpu]))
1121 smp_call_function_interrupt(); 1052 smp_call_function_interrupt();
1053 if (test_and_clear_bit(VIC_CALL_FUNCTION_SINGLE_CPI, &vic_cpi_mailbox[cpu]))
1054 smp_call_function_single_interrupt();
1122 set_irq_regs(old_regs); 1055 set_irq_regs(old_regs);
1123} 1056}
1124 1057
@@ -1134,16 +1067,7 @@ static void do_flush_tlb_all(void *info)
1134/* flush the TLB of every active CPU in the system */ 1067/* flush the TLB of every active CPU in the system */
1135void flush_tlb_all(void) 1068void flush_tlb_all(void)
1136{ 1069{
1137 on_each_cpu(do_flush_tlb_all, 0, 1, 1); 1070 on_each_cpu(do_flush_tlb_all, 0, 1);
1138}
1139
1140/* used to set up the trampoline for other CPUs when the memory manager
1141 * is sorted out */
1142void __init smp_alloc_memory(void)
1143{
1144 trampoline_base = alloc_bootmem_low_pages(PAGE_SIZE);
1145 if (__pa(trampoline_base) >= 0x93000)
1146 BUG();
1147} 1071}
1148 1072
1149/* send a reschedule CPI to one CPU by physical CPU number*/ 1073/* send a reschedule CPI to one CPU by physical CPU number*/
@@ -1175,7 +1099,7 @@ int safe_smp_processor_id(void)
1175/* broadcast a halt to all other CPUs */ 1099/* broadcast a halt to all other CPUs */
1176static void voyager_smp_send_stop(void) 1100static void voyager_smp_send_stop(void)
1177{ 1101{
1178 smp_call_function(smp_stop_cpu_function, NULL, 1, 1); 1102 smp_call_function(smp_stop_cpu_function, NULL, 1);
1179} 1103}
1180 1104
1181/* this function is triggered in time.c when a clock tick fires 1105/* this function is triggered in time.c when a clock tick fires
@@ -1862,5 +1786,7 @@ struct smp_ops smp_ops = {
1862 1786
1863 .smp_send_stop = voyager_smp_send_stop, 1787 .smp_send_stop = voyager_smp_send_stop,
1864 .smp_send_reschedule = voyager_smp_send_reschedule, 1788 .smp_send_reschedule = voyager_smp_send_reschedule,
1865 .smp_call_function_mask = voyager_smp_call_function_mask, 1789
1790 .send_call_func_ipi = native_send_call_func_ipi,
1791 .send_call_func_single_ipi = native_send_call_func_single_ipi,
1866}; 1792};
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index 6e38d877ea77..c7b06feb139b 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -30,6 +30,7 @@
30#include <asm/uaccess.h> 30#include <asm/uaccess.h>
31#include <asm/desc.h> 31#include <asm/desc.h>
32#include <asm/user.h> 32#include <asm/user.h>
33#include <asm/i387.h>
33 34
34#include "fpu_system.h" 35#include "fpu_system.h"
35#include "fpu_emu.h" 36#include "fpu_emu.h"
@@ -146,6 +147,13 @@ asmlinkage void math_emulate(long arg)
146 unsigned long code_limit = 0; /* Initialized to stop compiler warnings */ 147 unsigned long code_limit = 0; /* Initialized to stop compiler warnings */
147 struct desc_struct code_descriptor; 148 struct desc_struct code_descriptor;
148 149
150 if (!used_math()) {
151 if (init_fpu(current)) {
152 do_group_exit(SIGKILL);
153 return;
154 }
155 }
156
149#ifdef RE_ENTRANT_CHECKING 157#ifdef RE_ENTRANT_CHECKING
150 if (emulating) { 158 if (emulating) {
151 printk("ERROR: wm-FPU-emu is not RE-ENTRANT!\n"); 159 printk("ERROR: wm-FPU-emu is not RE-ENTRANT!\n");
@@ -153,11 +161,6 @@ asmlinkage void math_emulate(long arg)
153 RE_ENTRANT_CHECK_ON; 161 RE_ENTRANT_CHECK_ON;
154#endif /* RE_ENTRANT_CHECKING */ 162#endif /* RE_ENTRANT_CHECKING */
155 163
156 if (!used_math()) {
157 finit();
158 set_used_math();
159 }
160
161 SETUP_DATA_AREA(arg); 164 SETUP_DATA_AREA(arg);
162 165
163 FPU_ORIG_EIP = FPU_EIP; 166 FPU_ORIG_EIP = FPU_EIP;
diff --git a/arch/x86/math-emu/reg_constant.c b/arch/x86/math-emu/reg_constant.c
index 04869e64b18e..00548354912f 100644
--- a/arch/x86/math-emu/reg_constant.c
+++ b/arch/x86/math-emu/reg_constant.c
@@ -16,8 +16,8 @@
16#include "reg_constant.h" 16#include "reg_constant.h"
17#include "control_w.h" 17#include "control_w.h"
18 18
19#define MAKE_REG(s,e,l,h) { l, h, \ 19#define MAKE_REG(s, e, l, h) { l, h, \
20 ((EXTENDED_Ebias+(e)) | ((SIGN_##s != 0)*0x8000)) } 20 ((EXTENDED_Ebias+(e)) | ((SIGN_##s != 0)*0x8000)) }
21 21
22FPU_REG const CONST_1 = MAKE_REG(POS, 0, 0x00000000, 0x80000000); 22FPU_REG const CONST_1 = MAKE_REG(POS, 0, 0x00000000, 0x80000000);
23#if 0 23#if 0
@@ -40,7 +40,7 @@ FPU_REG const CONST_PI2extra = MAKE_REG(NEG, -66,
40FPU_REG const CONST_Z = MAKE_REG(POS, EXP_UNDER, 0x0, 0x0); 40FPU_REG const CONST_Z = MAKE_REG(POS, EXP_UNDER, 0x0, 0x0);
41 41
42/* Only the sign and significand (and tag) are used in internal NaNs */ 42/* Only the sign and significand (and tag) are used in internal NaNs */
43/* The 80486 never generates one of these 43/* The 80486 never generates one of these
44FPU_REG const CONST_SNAN = MAKE_REG(POS, EXP_OVER, 0x00000001, 0x80000000); 44FPU_REG const CONST_SNAN = MAKE_REG(POS, EXP_OVER, 0x00000001, 0x80000000);
45 */ 45 */
46/* This is the real indefinite QNaN */ 46/* This is the real indefinite QNaN */
@@ -49,7 +49,7 @@ FPU_REG const CONST_QNaN = MAKE_REG(NEG, EXP_OVER, 0x00000000, 0xC0000000);
49/* Only the sign (and tag) is used in internal infinities */ 49/* Only the sign (and tag) is used in internal infinities */
50FPU_REG const CONST_INF = MAKE_REG(POS, EXP_OVER, 0x00000000, 0x80000000); 50FPU_REG const CONST_INF = MAKE_REG(POS, EXP_OVER, 0x00000000, 0x80000000);
51 51
52static void fld_const(FPU_REG const *c, int adj, u_char tag) 52static void fld_const(FPU_REG const * c, int adj, u_char tag)
53{ 53{
54 FPU_REG *st_new_ptr; 54 FPU_REG *st_new_ptr;
55 55
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index b7b3e4c7cfc9..9873716e9f76 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -8,10 +8,16 @@ obj-$(CONFIG_X86_PTDUMP) += dump_pagetables.o
8 8
9obj-$(CONFIG_HIGHMEM) += highmem_32.o 9obj-$(CONFIG_HIGHMEM) += highmem_32.o
10 10
11obj-$(CONFIG_MMIOTRACE_HOOKS) += kmmio.o
12obj-$(CONFIG_MMIOTRACE) += mmiotrace.o
13mmiotrace-y := pf_in.o mmio-mod.o
14obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o
15
11ifeq ($(CONFIG_X86_32),y) 16ifeq ($(CONFIG_X86_32),y)
12obj-$(CONFIG_NUMA) += discontig_32.o 17obj-$(CONFIG_NUMA) += discontig_32.o
13else 18else
14obj-$(CONFIG_NUMA) += numa_64.o 19obj-$(CONFIG_NUMA) += numa_64.o
15obj-$(CONFIG_K8_NUMA) += k8topology_64.o 20obj-$(CONFIG_K8_NUMA) += k8topology_64.o
16obj-$(CONFIG_ACPI_NUMA) += srat_64.o
17endif 21endif
22obj-$(CONFIG_ACPI_NUMA) += srat_$(BITS).o
23
diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c
index 914ccf983687..5dfef9fa061a 100644
--- a/arch/x86/mm/discontig_32.c
+++ b/arch/x86/mm/discontig_32.c
@@ -38,6 +38,7 @@
38#include <asm/setup.h> 38#include <asm/setup.h>
39#include <asm/mmzone.h> 39#include <asm/mmzone.h>
40#include <asm/bios_ebda.h> 40#include <asm/bios_ebda.h>
41#include <asm/proto.h>
41 42
42struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; 43struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
43EXPORT_SYMBOL(node_data); 44EXPORT_SYMBOL(node_data);
@@ -59,14 +60,14 @@ unsigned long node_end_pfn[MAX_NUMNODES] __read_mostly;
59/* 60/*
60 * 4) physnode_map - the mapping between a pfn and owning node 61 * 4) physnode_map - the mapping between a pfn and owning node
61 * physnode_map keeps track of the physical memory layout of a generic 62 * physnode_map keeps track of the physical memory layout of a generic
62 * numa node on a 256Mb break (each element of the array will 63 * numa node on a 64Mb break (each element of the array will
63 * represent 256Mb of memory and will be marked by the node id. so, 64 * represent 64Mb of memory and will be marked by the node id. so,
64 * if the first gig is on node 0, and the second gig is on node 1 65 * if the first gig is on node 0, and the second gig is on node 1
65 * physnode_map will contain: 66 * physnode_map will contain:
66 * 67 *
67 * physnode_map[0-3] = 0; 68 * physnode_map[0-15] = 0;
68 * physnode_map[4-7] = 1; 69 * physnode_map[16-31] = 1;
69 * physnode_map[8- ] = -1; 70 * physnode_map[32- ] = -1;
70 */ 71 */
71s8 physnode_map[MAX_ELEMENTS] __read_mostly = { [0 ... (MAX_ELEMENTS - 1)] = -1}; 72s8 physnode_map[MAX_ELEMENTS] __read_mostly = { [0 ... (MAX_ELEMENTS - 1)] = -1};
72EXPORT_SYMBOL(physnode_map); 73EXPORT_SYMBOL(physnode_map);
@@ -75,15 +76,15 @@ void memory_present(int nid, unsigned long start, unsigned long end)
75{ 76{
76 unsigned long pfn; 77 unsigned long pfn;
77 78
78 printk(KERN_INFO "Node: %d, start_pfn: %ld, end_pfn: %ld\n", 79 printk(KERN_INFO "Node: %d, start_pfn: %lx, end_pfn: %lx\n",
79 nid, start, end); 80 nid, start, end);
80 printk(KERN_DEBUG " Setting physnode_map array to node %d for pfns:\n", nid); 81 printk(KERN_DEBUG " Setting physnode_map array to node %d for pfns:\n", nid);
81 printk(KERN_DEBUG " "); 82 printk(KERN_DEBUG " ");
82 for (pfn = start; pfn < end; pfn += PAGES_PER_ELEMENT) { 83 for (pfn = start; pfn < end; pfn += PAGES_PER_ELEMENT) {
83 physnode_map[pfn / PAGES_PER_ELEMENT] = nid; 84 physnode_map[pfn / PAGES_PER_ELEMENT] = nid;
84 printk("%ld ", pfn); 85 printk(KERN_CONT "%lx ", pfn);
85 } 86 }
86 printk("\n"); 87 printk(KERN_CONT "\n");
87} 88}
88 89
89unsigned long node_memmap_size_bytes(int nid, unsigned long start_pfn, 90unsigned long node_memmap_size_bytes(int nid, unsigned long start_pfn,
@@ -99,7 +100,6 @@ unsigned long node_memmap_size_bytes(int nid, unsigned long start_pfn,
99#endif 100#endif
100 101
101extern unsigned long find_max_low_pfn(void); 102extern unsigned long find_max_low_pfn(void);
102extern void add_one_highpage_init(struct page *, int, int);
103extern unsigned long highend_pfn, highstart_pfn; 103extern unsigned long highend_pfn, highstart_pfn;
104 104
105#define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE) 105#define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)
@@ -117,13 +117,13 @@ static unsigned long kva_pages;
117 */ 117 */
118int __init get_memcfg_numa_flat(void) 118int __init get_memcfg_numa_flat(void)
119{ 119{
120 printk("NUMA - single node, flat memory mode\n"); 120 printk(KERN_DEBUG "NUMA - single node, flat memory mode\n");
121 121
122 /* Run the memory configuration and find the top of memory. */
123 propagate_e820_map();
124 node_start_pfn[0] = 0; 122 node_start_pfn[0] = 0;
125 node_end_pfn[0] = max_pfn; 123 node_end_pfn[0] = max_pfn;
124 e820_register_active_regions(0, 0, max_pfn);
126 memory_present(0, 0, max_pfn); 125 memory_present(0, 0, max_pfn);
126 node_remap_size[0] = node_memmap_size_bytes(0, 0, max_pfn);
127 127
128 /* Indicate there is one node available. */ 128 /* Indicate there is one node available. */
129 nodes_clear(node_online_map); 129 nodes_clear(node_online_map);
@@ -156,24 +156,32 @@ static void __init propagate_e820_map_node(int nid)
156 */ 156 */
157static void __init allocate_pgdat(int nid) 157static void __init allocate_pgdat(int nid)
158{ 158{
159 if (nid && node_has_online_mem(nid)) 159 char buf[16];
160
161 if (node_has_online_mem(nid) && node_remap_start_vaddr[nid])
160 NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid]; 162 NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid];
161 else { 163 else {
162 NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(min_low_pfn)); 164 unsigned long pgdat_phys;
163 min_low_pfn += PFN_UP(sizeof(pg_data_t)); 165 pgdat_phys = find_e820_area(min_low_pfn<<PAGE_SHIFT,
166 max_pfn_mapped<<PAGE_SHIFT,
167 sizeof(pg_data_t),
168 PAGE_SIZE);
169 NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(pgdat_phys>>PAGE_SHIFT));
170 memset(buf, 0, sizeof(buf));
171 sprintf(buf, "NODE_DATA %d", nid);
172 reserve_early(pgdat_phys, pgdat_phys + sizeof(pg_data_t), buf);
164 } 173 }
174 printk(KERN_DEBUG "allocate_pgdat: node %d NODE_DATA %08lx\n",
175 nid, (unsigned long)NODE_DATA(nid));
165} 176}
166 177
167#ifdef CONFIG_DISCONTIGMEM
168/* 178/*
169 * In the discontig memory model, a portion of the kernel virtual area (KVA) 179 * In the DISCONTIGMEM and SPARSEMEM memory model, a portion of the kernel
170 * is reserved and portions of nodes are mapped using it. This is to allow 180 * virtual address space (KVA) is reserved and portions of nodes are mapped
171 * node-local memory to be allocated for structures that would normally require 181 * using it. This is to allow node-local memory to be allocated for
172 * ZONE_NORMAL. The memory is allocated with alloc_remap() and callers 182 * structures that would normally require ZONE_NORMAL. The memory is
173 * should be prepared to allocate from the bootmem allocator instead. This KVA 183 * allocated with alloc_remap() and callers should be prepared to allocate
174 * mechanism is incompatible with SPARSEMEM as it makes assumptions about the 184 * from the bootmem allocator instead.
175 * layout of memory that are broken if alloc_remap() succeeds for some of the
176 * map and fails for others
177 */ 185 */
178static unsigned long node_remap_start_pfn[MAX_NUMNODES]; 186static unsigned long node_remap_start_pfn[MAX_NUMNODES];
179static void *node_remap_end_vaddr[MAX_NUMNODES]; 187static void *node_remap_end_vaddr[MAX_NUMNODES];
@@ -195,15 +203,19 @@ void *alloc_remap(int nid, unsigned long size)
195 return allocation; 203 return allocation;
196} 204}
197 205
198void __init remap_numa_kva(void) 206static void __init remap_numa_kva(void)
199{ 207{
200 void *vaddr; 208 void *vaddr;
201 unsigned long pfn; 209 unsigned long pfn;
202 int node; 210 int node;
203 211
204 for_each_online_node(node) { 212 for_each_online_node(node) {
213 printk(KERN_DEBUG "remap_numa_kva: node %d\n", node);
205 for (pfn=0; pfn < node_remap_size[node]; pfn += PTRS_PER_PTE) { 214 for (pfn=0; pfn < node_remap_size[node]; pfn += PTRS_PER_PTE) {
206 vaddr = node_remap_start_vaddr[node]+(pfn<<PAGE_SHIFT); 215 vaddr = node_remap_start_vaddr[node]+(pfn<<PAGE_SHIFT);
216 printk(KERN_DEBUG "remap_numa_kva: %08lx to pfn %08lx\n",
217 (unsigned long)vaddr,
218 node_remap_start_pfn[node] + pfn);
207 set_pmd_pfn((ulong) vaddr, 219 set_pmd_pfn((ulong) vaddr,
208 node_remap_start_pfn[node] + pfn, 220 node_remap_start_pfn[node] + pfn,
209 PAGE_KERNEL_LARGE); 221 PAGE_KERNEL_LARGE);
@@ -215,17 +227,21 @@ static unsigned long calculate_numa_remap_pages(void)
215{ 227{
216 int nid; 228 int nid;
217 unsigned long size, reserve_pages = 0; 229 unsigned long size, reserve_pages = 0;
218 unsigned long pfn;
219 230
220 for_each_online_node(nid) { 231 for_each_online_node(nid) {
221 unsigned old_end_pfn = node_end_pfn[nid]; 232 u64 node_kva_target;
233 u64 node_kva_final;
222 234
223 /* 235 /*
224 * The acpi/srat node info can show hot-add memroy zones 236 * The acpi/srat node info can show hot-add memroy zones
225 * where memory could be added but not currently present. 237 * where memory could be added but not currently present.
226 */ 238 */
239 printk(KERN_DEBUG "node %d pfn: [%lx - %lx]\n",
240 nid, node_start_pfn[nid], node_end_pfn[nid]);
227 if (node_start_pfn[nid] > max_pfn) 241 if (node_start_pfn[nid] > max_pfn)
228 continue; 242 continue;
243 if (!node_end_pfn[nid])
244 continue;
229 if (node_end_pfn[nid] > max_pfn) 245 if (node_end_pfn[nid] > max_pfn)
230 node_end_pfn[nid] = max_pfn; 246 node_end_pfn[nid] = max_pfn;
231 247
@@ -237,41 +253,48 @@ static unsigned long calculate_numa_remap_pages(void)
237 /* now the roundup is correct, convert to PAGE_SIZE pages */ 253 /* now the roundup is correct, convert to PAGE_SIZE pages */
238 size = size * PTRS_PER_PTE; 254 size = size * PTRS_PER_PTE;
239 255
240 /* 256 node_kva_target = round_down(node_end_pfn[nid] - size,
241 * Validate the region we are allocating only contains valid 257 PTRS_PER_PTE);
242 * pages. 258 node_kva_target <<= PAGE_SHIFT;
243 */ 259 do {
244 for (pfn = node_end_pfn[nid] - size; 260 node_kva_final = find_e820_area(node_kva_target,
245 pfn < node_end_pfn[nid]; pfn++) 261 ((u64)node_end_pfn[nid])<<PAGE_SHIFT,
246 if (!page_is_ram(pfn)) 262 ((u64)size)<<PAGE_SHIFT,
247 break; 263 LARGE_PAGE_BYTES);
248 264 node_kva_target -= LARGE_PAGE_BYTES;
249 if (pfn != node_end_pfn[nid]) 265 } while (node_kva_final == -1ULL &&
250 size = 0; 266 (node_kva_target>>PAGE_SHIFT) > (node_start_pfn[nid]));
267
268 if (node_kva_final == -1ULL)
269 panic("Can not get kva ram\n");
251 270
252 printk("Reserving %ld pages of KVA for lmem_map of node %d\n",
253 size, nid);
254 node_remap_size[nid] = size; 271 node_remap_size[nid] = size;
255 node_remap_offset[nid] = reserve_pages; 272 node_remap_offset[nid] = reserve_pages;
256 reserve_pages += size; 273 reserve_pages += size;
257 printk("Shrinking node %d from %ld pages to %ld pages\n", 274 printk(KERN_DEBUG "Reserving %ld pages of KVA for lmem_map of"
258 nid, node_end_pfn[nid], node_end_pfn[nid] - size); 275 " node %d at %llx\n",
259 276 size, nid, node_kva_final>>PAGE_SHIFT);
260 if (node_end_pfn[nid] & (PTRS_PER_PTE-1)) { 277
261 /* 278 /*
262 * Align node_end_pfn[] and node_remap_start_pfn[] to 279 * prevent kva address below max_low_pfn want it on system
263 * pmd boundary. remap_numa_kva will barf otherwise. 280 * with less memory later.
264 */ 281 * layout will be: KVA address , KVA RAM
265 printk("Shrinking node %d further by %ld pages for proper alignment\n", 282 *
266 nid, node_end_pfn[nid] & (PTRS_PER_PTE-1)); 283 * we are supposed to only record the one less then max_low_pfn
267 size += node_end_pfn[nid] & (PTRS_PER_PTE-1); 284 * but we could have some hole in high memory, and it will only
268 } 285 * check page_is_ram(pfn) && !page_is_reserved_early(pfn) to decide
286 * to use it as free.
287 * So reserve_early here, hope we don't run out of that array
288 */
289 reserve_early(node_kva_final,
290 node_kva_final+(((u64)size)<<PAGE_SHIFT),
291 "KVA RAM");
269 292
270 node_end_pfn[nid] -= size; 293 node_remap_start_pfn[nid] = node_kva_final>>PAGE_SHIFT;
271 node_remap_start_pfn[nid] = node_end_pfn[nid]; 294 remove_active_range(nid, node_remap_start_pfn[nid],
272 shrink_active_range(nid, old_end_pfn, node_end_pfn[nid]); 295 node_remap_start_pfn[nid] + size);
273 } 296 }
274 printk("Reserving total of %ld pages for numa KVA remap\n", 297 printk(KERN_INFO "Reserving total of %lx pages for numa KVA remap\n",
275 reserve_pages); 298 reserve_pages);
276 return reserve_pages; 299 return reserve_pages;
277} 300}
@@ -285,37 +308,16 @@ static void init_remap_allocator(int nid)
285 node_remap_alloc_vaddr[nid] = node_remap_start_vaddr[nid] + 308 node_remap_alloc_vaddr[nid] = node_remap_start_vaddr[nid] +
286 ALIGN(sizeof(pg_data_t), PAGE_SIZE); 309 ALIGN(sizeof(pg_data_t), PAGE_SIZE);
287 310
288 printk ("node %d will remap to vaddr %08lx - %08lx\n", nid, 311 printk(KERN_DEBUG "node %d will remap to vaddr %08lx - %08lx\n", nid,
289 (ulong) node_remap_start_vaddr[nid], 312 (ulong) node_remap_start_vaddr[nid],
290 (ulong) pfn_to_kaddr(highstart_pfn 313 (ulong) node_remap_end_vaddr[nid]);
291 + node_remap_offset[nid] + node_remap_size[nid]));
292}
293#else
294void *alloc_remap(int nid, unsigned long size)
295{
296 return NULL;
297}
298
299static unsigned long calculate_numa_remap_pages(void)
300{
301 return 0;
302}
303
304static void init_remap_allocator(int nid)
305{
306}
307
308void __init remap_numa_kva(void)
309{
310} 314}
311#endif /* CONFIG_DISCONTIGMEM */
312 315
313extern void setup_bootmem_allocator(void); 316void __init initmem_init(unsigned long start_pfn,
314unsigned long __init setup_memory(void) 317 unsigned long end_pfn)
315{ 318{
316 int nid; 319 int nid;
317 unsigned long system_start_pfn, system_max_low_pfn; 320 long kva_target_pfn;
318 unsigned long wasted_pages;
319 321
320 /* 322 /*
321 * When mapping a NUMA machine we allocate the node_mem_map arrays 323 * When mapping a NUMA machine we allocate the node_mem_map arrays
@@ -324,109 +326,77 @@ unsigned long __init setup_memory(void)
324 * this space and use it to adjust the boundary between ZONE_NORMAL 326 * this space and use it to adjust the boundary between ZONE_NORMAL
325 * and ZONE_HIGHMEM. 327 * and ZONE_HIGHMEM.
326 */ 328 */
327 get_memcfg_numa();
328 329
329 kva_pages = calculate_numa_remap_pages(); 330 get_memcfg_numa();
330 331
331 /* partially used pages are not usable - thus round upwards */ 332 kva_pages = round_up(calculate_numa_remap_pages(), PTRS_PER_PTE);
332 system_start_pfn = min_low_pfn = PFN_UP(init_pg_tables_end);
333 333
334 kva_start_pfn = find_max_low_pfn() - kva_pages; 334 kva_target_pfn = round_down(max_low_pfn - kva_pages, PTRS_PER_PTE);
335 do {
336 kva_start_pfn = find_e820_area(kva_target_pfn<<PAGE_SHIFT,
337 max_low_pfn<<PAGE_SHIFT,
338 kva_pages<<PAGE_SHIFT,
339 PTRS_PER_PTE<<PAGE_SHIFT) >> PAGE_SHIFT;
340 kva_target_pfn -= PTRS_PER_PTE;
341 } while (kva_start_pfn == -1UL && kva_target_pfn > min_low_pfn);
335 342
336#ifdef CONFIG_BLK_DEV_INITRD 343 if (kva_start_pfn == -1UL)
337 /* Numa kva area is below the initrd */ 344 panic("Can not get kva space\n");
338 if (initrd_start)
339 kva_start_pfn = PFN_DOWN(initrd_start - PAGE_OFFSET)
340 - kva_pages;
341#endif
342 345
343 /* 346 printk(KERN_INFO "kva_start_pfn ~ %lx max_low_pfn ~ %lx\n",
344 * We waste pages past at the end of the KVA for no good reason other
345 * than how it is located. This is bad.
346 */
347 wasted_pages = kva_start_pfn & (PTRS_PER_PTE-1);
348 kva_start_pfn -= wasted_pages;
349 kva_pages += wasted_pages;
350
351 system_max_low_pfn = max_low_pfn = find_max_low_pfn();
352 printk("kva_start_pfn ~ %ld find_max_low_pfn() ~ %ld\n",
353 kva_start_pfn, max_low_pfn); 347 kva_start_pfn, max_low_pfn);
354 printk("max_pfn = %ld\n", max_pfn); 348 printk(KERN_INFO "max_pfn = %lx\n", max_pfn);
349
350 /* avoid clash with initrd */
351 reserve_early(kva_start_pfn<<PAGE_SHIFT,
352 (kva_start_pfn + kva_pages)<<PAGE_SHIFT,
353 "KVA PG");
355#ifdef CONFIG_HIGHMEM 354#ifdef CONFIG_HIGHMEM
356 highstart_pfn = highend_pfn = max_pfn; 355 highstart_pfn = highend_pfn = max_pfn;
357 if (max_pfn > system_max_low_pfn) 356 if (max_pfn > max_low_pfn)
358 highstart_pfn = system_max_low_pfn; 357 highstart_pfn = max_low_pfn;
359 printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", 358 printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
360 pages_to_mb(highend_pfn - highstart_pfn)); 359 pages_to_mb(highend_pfn - highstart_pfn));
361 num_physpages = highend_pfn; 360 num_physpages = highend_pfn;
362 high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; 361 high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
363#else 362#else
364 num_physpages = system_max_low_pfn; 363 num_physpages = max_low_pfn;
365 high_memory = (void *) __va(system_max_low_pfn * PAGE_SIZE - 1) + 1; 364 high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
366#endif 365#endif
367 printk(KERN_NOTICE "%ldMB LOWMEM available.\n", 366 printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
368 pages_to_mb(system_max_low_pfn)); 367 pages_to_mb(max_low_pfn));
369 printk("min_low_pfn = %ld, max_low_pfn = %ld, highstart_pfn = %ld\n", 368 printk(KERN_DEBUG "max_low_pfn = %lx, highstart_pfn = %lx\n",
370 min_low_pfn, max_low_pfn, highstart_pfn); 369 max_low_pfn, highstart_pfn);
371 370
372 printk("Low memory ends at vaddr %08lx\n", 371 printk(KERN_DEBUG "Low memory ends at vaddr %08lx\n",
373 (ulong) pfn_to_kaddr(max_low_pfn)); 372 (ulong) pfn_to_kaddr(max_low_pfn));
374 for_each_online_node(nid) { 373 for_each_online_node(nid) {
375 init_remap_allocator(nid); 374 init_remap_allocator(nid);
376 375
377 allocate_pgdat(nid); 376 allocate_pgdat(nid);
378 } 377 }
379 printk("High memory starts at vaddr %08lx\n", 378 remap_numa_kva();
379
380 printk(KERN_DEBUG "High memory starts at vaddr %08lx\n",
380 (ulong) pfn_to_kaddr(highstart_pfn)); 381 (ulong) pfn_to_kaddr(highstart_pfn));
381 for_each_online_node(nid) 382 for_each_online_node(nid)
382 propagate_e820_map_node(nid); 383 propagate_e820_map_node(nid);
383 384
384 memset(NODE_DATA(0), 0, sizeof(struct pglist_data)); 385 for_each_online_node(nid)
386 memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
387
385 NODE_DATA(0)->bdata = &node0_bdata; 388 NODE_DATA(0)->bdata = &node0_bdata;
386 setup_bootmem_allocator(); 389 setup_bootmem_allocator();
387 return max_low_pfn;
388}
389
390void __init numa_kva_reserve(void)
391{
392 if (kva_pages)
393 reserve_bootmem(PFN_PHYS(kva_start_pfn), PFN_PHYS(kva_pages),
394 BOOTMEM_DEFAULT);
395} 390}
396 391
397void __init zone_sizes_init(void) 392void __init set_highmem_pages_init(void)
398{
399 int nid;
400 unsigned long max_zone_pfns[MAX_NR_ZONES];
401 memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
402 max_zone_pfns[ZONE_DMA] =
403 virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
404 max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
405#ifdef CONFIG_HIGHMEM
406 max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
407#endif
408
409 /* If SRAT has not registered memory, register it now */
410 if (find_max_pfn_with_active_regions() == 0) {
411 for_each_online_node(nid) {
412 if (node_has_online_mem(nid))
413 add_active_range(nid, node_start_pfn[nid],
414 node_end_pfn[nid]);
415 }
416 }
417
418 free_area_init_nodes(max_zone_pfns);
419 return;
420}
421
422void __init set_highmem_pages_init(int bad_ppro)
423{ 393{
424#ifdef CONFIG_HIGHMEM 394#ifdef CONFIG_HIGHMEM
425 struct zone *zone; 395 struct zone *zone;
426 struct page *page; 396 int nid;
427 397
428 for_each_zone(zone) { 398 for_each_zone(zone) {
429 unsigned long node_pfn, zone_start_pfn, zone_end_pfn; 399 unsigned long zone_start_pfn, zone_end_pfn;
430 400
431 if (!is_highmem(zone)) 401 if (!is_highmem(zone))
432 continue; 402 continue;
@@ -434,16 +404,12 @@ void __init set_highmem_pages_init(int bad_ppro)
434 zone_start_pfn = zone->zone_start_pfn; 404 zone_start_pfn = zone->zone_start_pfn;
435 zone_end_pfn = zone_start_pfn + zone->spanned_pages; 405 zone_end_pfn = zone_start_pfn + zone->spanned_pages;
436 406
437 printk("Initializing %s for node %d (%08lx:%08lx)\n", 407 nid = zone_to_nid(zone);
438 zone->name, zone_to_nid(zone), 408 printk(KERN_INFO "Initializing %s for node %d (%08lx:%08lx)\n",
439 zone_start_pfn, zone_end_pfn); 409 zone->name, nid, zone_start_pfn, zone_end_pfn);
440 410
441 for (node_pfn = zone_start_pfn; node_pfn < zone_end_pfn; node_pfn++) { 411 add_highpages_with_active_regions(nid, zone_start_pfn,
442 if (!pfn_valid(node_pfn)) 412 zone_end_pfn);
443 continue;
444 page = pfn_to_page(node_pfn);
445 add_one_highpage_init(page, node_pfn, bad_ppro);
446 }
447 } 413 }
448 totalram_pages += totalhigh_pages; 414 totalram_pages += totalhigh_pages;
449#endif 415#endif
@@ -476,3 +442,4 @@ int memory_add_physaddr_to_nid(u64 addr)
476 442
477EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); 443EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
478#endif 444#endif
445
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index 2c24bea92c66..0bb0caed8971 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -42,7 +42,7 @@ static struct addr_marker address_markers[] = {
42 { 0, "User Space" }, 42 { 0, "User Space" },
43#ifdef CONFIG_X86_64 43#ifdef CONFIG_X86_64
44 { 0x8000000000000000UL, "Kernel Space" }, 44 { 0x8000000000000000UL, "Kernel Space" },
45 { 0xffff810000000000UL, "Low Kernel Mapping" }, 45 { PAGE_OFFSET, "Low Kernel Mapping" },
46 { VMALLOC_START, "vmalloc() Area" }, 46 { VMALLOC_START, "vmalloc() Area" },
47 { VMEMMAP_START, "Vmemmap" }, 47 { VMEMMAP_START, "Vmemmap" },
48 { __START_KERNEL_map, "High Kernel Mapping" }, 48 { __START_KERNEL_map, "High Kernel Mapping" },
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index fd7e1798c75a..455f3fe67b42 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -10,6 +10,7 @@
10#include <linux/string.h> 10#include <linux/string.h>
11#include <linux/types.h> 11#include <linux/types.h>
12#include <linux/ptrace.h> 12#include <linux/ptrace.h>
13#include <linux/mmiotrace.h>
13#include <linux/mman.h> 14#include <linux/mman.h>
14#include <linux/mm.h> 15#include <linux/mm.h>
15#include <linux/smp.h> 16#include <linux/smp.h>
@@ -49,17 +50,23 @@
49#define PF_RSVD (1<<3) 50#define PF_RSVD (1<<3)
50#define PF_INSTR (1<<4) 51#define PF_INSTR (1<<4)
51 52
53static inline int kmmio_fault(struct pt_regs *regs, unsigned long addr)
54{
55#ifdef CONFIG_MMIOTRACE_HOOKS
56 if (unlikely(is_kmmio_active()))
57 if (kmmio_handler(regs, addr) == 1)
58 return -1;
59#endif
60 return 0;
61}
62
52static inline int notify_page_fault(struct pt_regs *regs) 63static inline int notify_page_fault(struct pt_regs *regs)
53{ 64{
54#ifdef CONFIG_KPROBES 65#ifdef CONFIG_KPROBES
55 int ret = 0; 66 int ret = 0;
56 67
57 /* kprobe_running() needs smp_processor_id() */ 68 /* kprobe_running() needs smp_processor_id() */
58#ifdef CONFIG_X86_32
59 if (!user_mode_vm(regs)) { 69 if (!user_mode_vm(regs)) {
60#else
61 if (!user_mode(regs)) {
62#endif
63 preempt_disable(); 70 preempt_disable();
64 if (kprobe_running() && kprobe_fault_handler(regs, 14)) 71 if (kprobe_running() && kprobe_fault_handler(regs, 14))
65 ret = 1; 72 ret = 1;
@@ -396,11 +403,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
396 printk(KERN_CONT "NULL pointer dereference"); 403 printk(KERN_CONT "NULL pointer dereference");
397 else 404 else
398 printk(KERN_CONT "paging request"); 405 printk(KERN_CONT "paging request");
399#ifdef CONFIG_X86_32 406 printk(KERN_CONT " at %p\n", (void *) address);
400 printk(KERN_CONT " at %08lx\n", address);
401#else
402 printk(KERN_CONT " at %016lx\n", address);
403#endif
404 printk(KERN_ALERT "IP:"); 407 printk(KERN_ALERT "IP:");
405 printk_address(regs->ip, 1); 408 printk_address(regs->ip, 1);
406 dump_pagetable(address); 409 dump_pagetable(address);
@@ -497,6 +500,11 @@ static int vmalloc_fault(unsigned long address)
497 unsigned long pgd_paddr; 500 unsigned long pgd_paddr;
498 pmd_t *pmd_k; 501 pmd_t *pmd_k;
499 pte_t *pte_k; 502 pte_t *pte_k;
503
504 /* Make sure we are in vmalloc area */
505 if (!(address >= VMALLOC_START && address < VMALLOC_END))
506 return -1;
507
500 /* 508 /*
501 * Synchronize this task's top level page-table 509 * Synchronize this task's top level page-table
502 * with the 'reference' page table. 510 * with the 'reference' page table.
@@ -601,6 +609,8 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
601 609
602 if (notify_page_fault(regs)) 610 if (notify_page_fault(regs))
603 return; 611 return;
612 if (unlikely(kmmio_fault(regs, address)))
613 return;
604 614
605 /* 615 /*
606 * We fault-in kernel-space virtual memory on-demand. The 616 * We fault-in kernel-space virtual memory on-demand. The
@@ -795,14 +805,10 @@ bad_area_nosemaphore:
795 if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) && 805 if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
796 printk_ratelimit()) { 806 printk_ratelimit()) {
797 printk( 807 printk(
798#ifdef CONFIG_X86_32 808 "%s%s[%d]: segfault at %lx ip %p sp %p error %lx",
799 "%s%s[%d]: segfault at %lx ip %08lx sp %08lx error %lx",
800#else
801 "%s%s[%d]: segfault at %lx ip %lx sp %lx error %lx",
802#endif
803 task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG, 809 task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
804 tsk->comm, task_pid_nr(tsk), address, regs->ip, 810 tsk->comm, task_pid_nr(tsk), address,
805 regs->sp, error_code); 811 (void *) regs->ip, (void *) regs->sp, error_code);
806 print_vma_addr(" in ", regs->ip); 812 print_vma_addr(" in ", regs->ip);
807 printk("\n"); 813 printk("\n");
808 } 814 }
@@ -910,14 +916,7 @@ LIST_HEAD(pgd_list);
910void vmalloc_sync_all(void) 916void vmalloc_sync_all(void)
911{ 917{
912#ifdef CONFIG_X86_32 918#ifdef CONFIG_X86_32
913 /* 919 unsigned long start = VMALLOC_START & PGDIR_MASK;
914 * Note that races in the updates of insync and start aren't
915 * problematic: insync can only get set bits added, and updates to
916 * start are only improving performance (without affecting correctness
917 * if undone).
918 */
919 static DECLARE_BITMAP(insync, PTRS_PER_PGD);
920 static unsigned long start = TASK_SIZE;
921 unsigned long address; 920 unsigned long address;
922 921
923 if (SHARED_KERNEL_PMD) 922 if (SHARED_KERNEL_PMD)
@@ -925,56 +924,38 @@ void vmalloc_sync_all(void)
925 924
926 BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK); 925 BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK);
927 for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) { 926 for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) {
928 if (!test_bit(pgd_index(address), insync)) { 927 unsigned long flags;
929 unsigned long flags; 928 struct page *page;
930 struct page *page; 929
931 930 spin_lock_irqsave(&pgd_lock, flags);
932 spin_lock_irqsave(&pgd_lock, flags); 931 list_for_each_entry(page, &pgd_list, lru) {
933 list_for_each_entry(page, &pgd_list, lru) { 932 if (!vmalloc_sync_one(page_address(page),
934 if (!vmalloc_sync_one(page_address(page), 933 address))
935 address)) 934 break;
936 break;
937 }
938 spin_unlock_irqrestore(&pgd_lock, flags);
939 if (!page)
940 set_bit(pgd_index(address), insync);
941 } 935 }
942 if (address == start && test_bit(pgd_index(address), insync)) 936 spin_unlock_irqrestore(&pgd_lock, flags);
943 start = address + PGDIR_SIZE;
944 } 937 }
945#else /* CONFIG_X86_64 */ 938#else /* CONFIG_X86_64 */
946 /* 939 unsigned long start = VMALLOC_START & PGDIR_MASK;
947 * Note that races in the updates of insync and start aren't
948 * problematic: insync can only get set bits added, and updates to
949 * start are only improving performance (without affecting correctness
950 * if undone).
951 */
952 static DECLARE_BITMAP(insync, PTRS_PER_PGD);
953 static unsigned long start = VMALLOC_START & PGDIR_MASK;
954 unsigned long address; 940 unsigned long address;
955 941
956 for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) { 942 for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) {
957 if (!test_bit(pgd_index(address), insync)) { 943 const pgd_t *pgd_ref = pgd_offset_k(address);
958 const pgd_t *pgd_ref = pgd_offset_k(address); 944 unsigned long flags;
959 unsigned long flags; 945 struct page *page;
960 struct page *page; 946
961 947 if (pgd_none(*pgd_ref))
962 if (pgd_none(*pgd_ref)) 948 continue;
963 continue; 949 spin_lock_irqsave(&pgd_lock, flags);
964 spin_lock_irqsave(&pgd_lock, flags); 950 list_for_each_entry(page, &pgd_list, lru) {
965 list_for_each_entry(page, &pgd_list, lru) { 951 pgd_t *pgd;
966 pgd_t *pgd; 952 pgd = (pgd_t *)page_address(page) + pgd_index(address);
967 pgd = (pgd_t *)page_address(page) + pgd_index(address); 953 if (pgd_none(*pgd))
968 if (pgd_none(*pgd)) 954 set_pgd(pgd, *pgd_ref);
969 set_pgd(pgd, *pgd_ref); 955 else
970 else 956 BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
971 BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
972 }
973 spin_unlock_irqrestore(&pgd_lock, flags);
974 set_bit(pgd_index(address), insync);
975 } 957 }
976 if (address == start) 958 spin_unlock_irqrestore(&pgd_lock, flags);
977 start = address + PGDIR_SIZE;
978 } 959 }
979#endif 960#endif
980} 961}
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index ec30d10154b6..9689a5138e64 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -50,6 +50,7 @@
50 50
51unsigned int __VMALLOC_RESERVE = 128 << 20; 51unsigned int __VMALLOC_RESERVE = 128 << 20;
52 52
53unsigned long max_low_pfn_mapped;
53unsigned long max_pfn_mapped; 54unsigned long max_pfn_mapped;
54 55
55DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); 56DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
@@ -57,6 +58,27 @@ unsigned long highstart_pfn, highend_pfn;
57 58
58static noinline int do_test_wp_bit(void); 59static noinline int do_test_wp_bit(void);
59 60
61
62static unsigned long __initdata table_start;
63static unsigned long __meminitdata table_end;
64static unsigned long __meminitdata table_top;
65
66static int __initdata after_init_bootmem;
67
68static __init void *alloc_low_page(unsigned long *phys)
69{
70 unsigned long pfn = table_end++;
71 void *adr;
72
73 if (pfn >= table_top)
74 panic("alloc_low_page: ran out of memory");
75
76 adr = __va(pfn * PAGE_SIZE);
77 memset(adr, 0, PAGE_SIZE);
78 *phys = pfn * PAGE_SIZE;
79 return adr;
80}
81
60/* 82/*
61 * Creates a middle page table and puts a pointer to it in the 83 * Creates a middle page table and puts a pointer to it in the
62 * given global directory entry. This only returns the gd entry 84 * given global directory entry. This only returns the gd entry
@@ -68,9 +90,12 @@ static pmd_t * __init one_md_table_init(pgd_t *pgd)
68 pmd_t *pmd_table; 90 pmd_t *pmd_table;
69 91
70#ifdef CONFIG_X86_PAE 92#ifdef CONFIG_X86_PAE
93 unsigned long phys;
71 if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { 94 if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
72 pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE); 95 if (after_init_bootmem)
73 96 pmd_table = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
97 else
98 pmd_table = (pmd_t *)alloc_low_page(&phys);
74 paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT); 99 paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
75 set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); 100 set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
76 pud = pud_offset(pgd, 0); 101 pud = pud_offset(pgd, 0);
@@ -92,12 +117,16 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
92 if (!(pmd_val(*pmd) & _PAGE_PRESENT)) { 117 if (!(pmd_val(*pmd) & _PAGE_PRESENT)) {
93 pte_t *page_table = NULL; 118 pte_t *page_table = NULL;
94 119
120 if (after_init_bootmem) {
95#ifdef CONFIG_DEBUG_PAGEALLOC 121#ifdef CONFIG_DEBUG_PAGEALLOC
96 page_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE); 122 page_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE);
97#endif 123#endif
98 if (!page_table) { 124 if (!page_table)
99 page_table = 125 page_table =
100 (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE); 126 (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
127 } else {
128 unsigned long phys;
129 page_table = (pte_t *)alloc_low_page(&phys);
101 } 130 }
102 131
103 paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT); 132 paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
@@ -155,38 +184,44 @@ static inline int is_kernel_text(unsigned long addr)
155 * of max_low_pfn pages, by creating page tables starting from address 184 * of max_low_pfn pages, by creating page tables starting from address
156 * PAGE_OFFSET: 185 * PAGE_OFFSET:
157 */ 186 */
158static void __init kernel_physical_mapping_init(pgd_t *pgd_base) 187static void __init kernel_physical_mapping_init(pgd_t *pgd_base,
188 unsigned long start_pfn,
189 unsigned long end_pfn,
190 int use_pse)
159{ 191{
160 int pgd_idx, pmd_idx, pte_ofs; 192 int pgd_idx, pmd_idx, pte_ofs;
161 unsigned long pfn; 193 unsigned long pfn;
162 pgd_t *pgd; 194 pgd_t *pgd;
163 pmd_t *pmd; 195 pmd_t *pmd;
164 pte_t *pte; 196 pte_t *pte;
197 unsigned pages_2m = 0, pages_4k = 0;
165 198
166 pgd_idx = pgd_index(PAGE_OFFSET); 199 if (!cpu_has_pse)
167 pgd = pgd_base + pgd_idx; 200 use_pse = 0;
168 pfn = 0;
169 201
202 pfn = start_pfn;
203 pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
204 pgd = pgd_base + pgd_idx;
170 for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) { 205 for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
171 pmd = one_md_table_init(pgd); 206 pmd = one_md_table_init(pgd);
172 if (pfn >= max_low_pfn)
173 continue;
174 207
175 for (pmd_idx = 0; 208 if (pfn >= end_pfn)
176 pmd_idx < PTRS_PER_PMD && pfn < max_low_pfn; 209 continue;
210#ifdef CONFIG_X86_PAE
211 pmd_idx = pmd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
212 pmd += pmd_idx;
213#else
214 pmd_idx = 0;
215#endif
216 for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
177 pmd++, pmd_idx++) { 217 pmd++, pmd_idx++) {
178 unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET; 218 unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
179 219
180 /* 220 /*
181 * Map with big pages if possible, otherwise 221 * Map with big pages if possible, otherwise
182 * create normal page tables: 222 * create normal page tables:
183 *
184 * Don't use a large page for the first 2/4MB of memory
185 * because there are often fixed size MTRRs in there
186 * and overlapping MTRRs into large pages can cause
187 * slowdowns.
188 */ 223 */
189 if (cpu_has_pse && !(pgd_idx == 0 && pmd_idx == 0)) { 224 if (use_pse) {
190 unsigned int addr2; 225 unsigned int addr2;
191 pgprot_t prot = PAGE_KERNEL_LARGE; 226 pgprot_t prot = PAGE_KERNEL_LARGE;
192 227
@@ -197,34 +232,30 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
197 is_kernel_text(addr2)) 232 is_kernel_text(addr2))
198 prot = PAGE_KERNEL_LARGE_EXEC; 233 prot = PAGE_KERNEL_LARGE_EXEC;
199 234
235 pages_2m++;
200 set_pmd(pmd, pfn_pmd(pfn, prot)); 236 set_pmd(pmd, pfn_pmd(pfn, prot));
201 237
202 pfn += PTRS_PER_PTE; 238 pfn += PTRS_PER_PTE;
203 max_pfn_mapped = pfn;
204 continue; 239 continue;
205 } 240 }
206 pte = one_page_table_init(pmd); 241 pte = one_page_table_init(pmd);
207 242
208 for (pte_ofs = 0; 243 pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
209 pte_ofs < PTRS_PER_PTE && pfn < max_low_pfn; 244 pte += pte_ofs;
245 for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
210 pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) { 246 pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
211 pgprot_t prot = PAGE_KERNEL; 247 pgprot_t prot = PAGE_KERNEL;
212 248
213 if (is_kernel_text(addr)) 249 if (is_kernel_text(addr))
214 prot = PAGE_KERNEL_EXEC; 250 prot = PAGE_KERNEL_EXEC;
215 251
252 pages_4k++;
216 set_pte(pte, pfn_pte(pfn, prot)); 253 set_pte(pte, pfn_pte(pfn, prot));
217 } 254 }
218 max_pfn_mapped = pfn;
219 } 255 }
220 } 256 }
221} 257 update_page_count(PG_LEVEL_2M, pages_2m);
222 258 update_page_count(PG_LEVEL_4K, pages_4k);
223static inline int page_kills_ppro(unsigned long pagenr)
224{
225 if (pagenr >= 0x70000 && pagenr <= 0x7003F)
226 return 1;
227 return 0;
228} 259}
229 260
230/* 261/*
@@ -287,29 +318,62 @@ static void __init permanent_kmaps_init(pgd_t *pgd_base)
287 pkmap_page_table = pte; 318 pkmap_page_table = pte;
288} 319}
289 320
290void __init add_one_highpage_init(struct page *page, int pfn, int bad_ppro) 321static void __init add_one_highpage_init(struct page *page, int pfn)
291{ 322{
292 if (page_is_ram(pfn) && !(bad_ppro && page_kills_ppro(pfn))) { 323 ClearPageReserved(page);
293 ClearPageReserved(page); 324 init_page_count(page);
294 init_page_count(page); 325 __free_page(page);
295 __free_page(page); 326 totalhigh_pages++;
296 totalhigh_pages++;
297 } else
298 SetPageReserved(page);
299} 327}
300 328
301#ifndef CONFIG_NUMA 329struct add_highpages_data {
302static void __init set_highmem_pages_init(int bad_ppro) 330 unsigned long start_pfn;
331 unsigned long end_pfn;
332};
333
334static int __init add_highpages_work_fn(unsigned long start_pfn,
335 unsigned long end_pfn, void *datax)
303{ 336{
304 int pfn; 337 int node_pfn;
338 struct page *page;
339 unsigned long final_start_pfn, final_end_pfn;
340 struct add_highpages_data *data;
305 341
306 for (pfn = highstart_pfn; pfn < highend_pfn; pfn++) { 342 data = (struct add_highpages_data *)datax;
307 /* 343
308 * Holes under sparsemem might not have no mem_map[]: 344 final_start_pfn = max(start_pfn, data->start_pfn);
309 */ 345 final_end_pfn = min(end_pfn, data->end_pfn);
310 if (pfn_valid(pfn)) 346 if (final_start_pfn >= final_end_pfn)
311 add_one_highpage_init(pfn_to_page(pfn), pfn, bad_ppro); 347 return 0;
348
349 for (node_pfn = final_start_pfn; node_pfn < final_end_pfn;
350 node_pfn++) {
351 if (!pfn_valid(node_pfn))
352 continue;
353 page = pfn_to_page(node_pfn);
354 add_one_highpage_init(page, node_pfn);
312 } 355 }
356
357 return 0;
358
359}
360
361void __init add_highpages_with_active_regions(int nid, unsigned long start_pfn,
362 unsigned long end_pfn)
363{
364 struct add_highpages_data data;
365
366 data.start_pfn = start_pfn;
367 data.end_pfn = end_pfn;
368
369 work_with_active_regions(nid, add_highpages_work_fn, &data);
370}
371
372#ifndef CONFIG_NUMA
373static void __init set_highmem_pages_init(void)
374{
375 add_highpages_with_active_regions(0, highstart_pfn, highend_pfn);
376
313 totalram_pages += totalhigh_pages; 377 totalram_pages += totalhigh_pages;
314} 378}
315#endif /* !CONFIG_NUMA */ 379#endif /* !CONFIG_NUMA */
@@ -317,14 +381,9 @@ static void __init set_highmem_pages_init(int bad_ppro)
317#else 381#else
318# define kmap_init() do { } while (0) 382# define kmap_init() do { } while (0)
319# define permanent_kmaps_init(pgd_base) do { } while (0) 383# define permanent_kmaps_init(pgd_base) do { } while (0)
320# define set_highmem_pages_init(bad_ppro) do { } while (0) 384# define set_highmem_pages_init() do { } while (0)
321#endif /* CONFIG_HIGHMEM */ 385#endif /* CONFIG_HIGHMEM */
322 386
323pteval_t __PAGE_KERNEL = _PAGE_KERNEL;
324EXPORT_SYMBOL(__PAGE_KERNEL);
325
326pteval_t __PAGE_KERNEL_EXEC = _PAGE_KERNEL_EXEC;
327
328void __init native_pagetable_setup_start(pgd_t *base) 387void __init native_pagetable_setup_start(pgd_t *base)
329{ 388{
330 unsigned long pfn, va; 389 unsigned long pfn, va;
@@ -380,27 +439,10 @@ void __init native_pagetable_setup_done(pgd_t *base)
380 * be partially populated, and so it avoids stomping on any existing 439 * be partially populated, and so it avoids stomping on any existing
381 * mappings. 440 * mappings.
382 */ 441 */
383static void __init pagetable_init(void) 442static void __init early_ioremap_page_table_range_init(pgd_t *pgd_base)
384{ 443{
385 pgd_t *pgd_base = swapper_pg_dir;
386 unsigned long vaddr, end; 444 unsigned long vaddr, end;
387 445
388 paravirt_pagetable_setup_start(pgd_base);
389
390 /* Enable PSE if available */
391 if (cpu_has_pse)
392 set_in_cr4(X86_CR4_PSE);
393
394 /* Enable PGE if available */
395 if (cpu_has_pge) {
396 set_in_cr4(X86_CR4_PGE);
397 __PAGE_KERNEL |= _PAGE_GLOBAL;
398 __PAGE_KERNEL_EXEC |= _PAGE_GLOBAL;
399 }
400
401 kernel_physical_mapping_init(pgd_base);
402 remap_numa_kva();
403
404 /* 446 /*
405 * Fixed mappings, only the page table structure has to be 447 * Fixed mappings, only the page table structure has to be
406 * created - mappings will be set by set_fixmap(): 448 * created - mappings will be set by set_fixmap():
@@ -410,6 +452,13 @@ static void __init pagetable_init(void)
410 end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK; 452 end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK;
411 page_table_range_init(vaddr, end, pgd_base); 453 page_table_range_init(vaddr, end, pgd_base);
412 early_ioremap_reset(); 454 early_ioremap_reset();
455}
456
457static void __init pagetable_init(void)
458{
459 pgd_t *pgd_base = swapper_pg_dir;
460
461 paravirt_pagetable_setup_start(pgd_base);
413 462
414 permanent_kmaps_init(pgd_base); 463 permanent_kmaps_init(pgd_base);
415 464
@@ -456,7 +505,7 @@ void zap_low_mappings(void)
456 505
457int nx_enabled; 506int nx_enabled;
458 507
459pteval_t __supported_pte_mask __read_mostly = ~_PAGE_NX; 508pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL);
460EXPORT_SYMBOL_GPL(__supported_pte_mask); 509EXPORT_SYMBOL_GPL(__supported_pte_mask);
461 510
462#ifdef CONFIG_X86_PAE 511#ifdef CONFIG_X86_PAE
@@ -509,27 +558,318 @@ static void __init set_nx(void)
509} 558}
510#endif 559#endif
511 560
561/* user-defined highmem size */
562static unsigned int highmem_pages = -1;
563
512/* 564/*
513 * paging_init() sets up the page tables - note that the first 8MB are 565 * highmem=size forces highmem to be exactly 'size' bytes.
514 * already mapped by head.S. 566 * This works even on boxes that have no highmem otherwise.
515 * 567 * This also works to reduce highmem size on bigger boxes.
516 * This routines also unmaps the page at virtual kernel address 0, so
517 * that we can trap those pesky NULL-reference errors in the kernel.
518 */ 568 */
519void __init paging_init(void) 569static int __init parse_highmem(char *arg)
570{
571 if (!arg)
572 return -EINVAL;
573
574 highmem_pages = memparse(arg, &arg) >> PAGE_SHIFT;
575 return 0;
576}
577early_param("highmem", parse_highmem);
578
579/*
580 * Determine low and high memory ranges:
581 */
582void __init find_low_pfn_range(void)
583{
584 /* it could update max_pfn */
585
586 /* max_low_pfn is 0, we already have early_res support */
587
588 max_low_pfn = max_pfn;
589 if (max_low_pfn > MAXMEM_PFN) {
590 if (highmem_pages == -1)
591 highmem_pages = max_pfn - MAXMEM_PFN;
592 if (highmem_pages + MAXMEM_PFN < max_pfn)
593 max_pfn = MAXMEM_PFN + highmem_pages;
594 if (highmem_pages + MAXMEM_PFN > max_pfn) {
595 printk(KERN_WARNING "only %luMB highmem pages "
596 "available, ignoring highmem size of %uMB.\n",
597 pages_to_mb(max_pfn - MAXMEM_PFN),
598 pages_to_mb(highmem_pages));
599 highmem_pages = 0;
600 }
601 max_low_pfn = MAXMEM_PFN;
602#ifndef CONFIG_HIGHMEM
603 /* Maximum memory usable is what is directly addressable */
604 printk(KERN_WARNING "Warning only %ldMB will be used.\n",
605 MAXMEM>>20);
606 if (max_pfn > MAX_NONPAE_PFN)
607 printk(KERN_WARNING
608 "Use a HIGHMEM64G enabled kernel.\n");
609 else
610 printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n");
611 max_pfn = MAXMEM_PFN;
612#else /* !CONFIG_HIGHMEM */
613#ifndef CONFIG_HIGHMEM64G
614 if (max_pfn > MAX_NONPAE_PFN) {
615 max_pfn = MAX_NONPAE_PFN;
616 printk(KERN_WARNING "Warning only 4GB will be used."
617 "Use a HIGHMEM64G enabled kernel.\n");
618 }
619#endif /* !CONFIG_HIGHMEM64G */
620#endif /* !CONFIG_HIGHMEM */
621 } else {
622 if (highmem_pages == -1)
623 highmem_pages = 0;
624#ifdef CONFIG_HIGHMEM
625 if (highmem_pages >= max_pfn) {
626 printk(KERN_ERR "highmem size specified (%uMB) is "
627 "bigger than pages available (%luMB)!.\n",
628 pages_to_mb(highmem_pages),
629 pages_to_mb(max_pfn));
630 highmem_pages = 0;
631 }
632 if (highmem_pages) {
633 if (max_low_pfn - highmem_pages <
634 64*1024*1024/PAGE_SIZE){
635 printk(KERN_ERR "highmem size %uMB results in "
636 "smaller than 64MB lowmem, ignoring it.\n"
637 , pages_to_mb(highmem_pages));
638 highmem_pages = 0;
639 }
640 max_low_pfn -= highmem_pages;
641 }
642#else
643 if (highmem_pages)
644 printk(KERN_ERR "ignoring highmem size on non-highmem"
645 " kernel!\n");
646#endif
647 }
648}
649
650#ifndef CONFIG_NEED_MULTIPLE_NODES
651void __init initmem_init(unsigned long start_pfn,
652 unsigned long end_pfn)
520{ 653{
654#ifdef CONFIG_HIGHMEM
655 highstart_pfn = highend_pfn = max_pfn;
656 if (max_pfn > max_low_pfn)
657 highstart_pfn = max_low_pfn;
658 memory_present(0, 0, highend_pfn);
659 e820_register_active_regions(0, 0, highend_pfn);
660 printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
661 pages_to_mb(highend_pfn - highstart_pfn));
662 num_physpages = highend_pfn;
663 high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
664#else
665 memory_present(0, 0, max_low_pfn);
666 e820_register_active_regions(0, 0, max_low_pfn);
667 num_physpages = max_low_pfn;
668 high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
669#endif
670#ifdef CONFIG_FLATMEM
671 max_mapnr = num_physpages;
672#endif
673 printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
674 pages_to_mb(max_low_pfn));
675
676 setup_bootmem_allocator();
677}
678#endif /* !CONFIG_NEED_MULTIPLE_NODES */
679
680static void __init zone_sizes_init(void)
681{
682 unsigned long max_zone_pfns[MAX_NR_ZONES];
683 memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
684 max_zone_pfns[ZONE_DMA] =
685 virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
686 max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
687#ifdef CONFIG_HIGHMEM
688 max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
689#endif
690
691 free_area_init_nodes(max_zone_pfns);
692}
693
694void __init setup_bootmem_allocator(void)
695{
696 int i;
697 unsigned long bootmap_size, bootmap;
698 /*
699 * Initialize the boot-time allocator (with low memory only):
700 */
701 bootmap_size = bootmem_bootmap_pages(max_low_pfn)<<PAGE_SHIFT;
702 bootmap = find_e820_area(min_low_pfn<<PAGE_SHIFT,
703 max_pfn_mapped<<PAGE_SHIFT, bootmap_size,
704 PAGE_SIZE);
705 if (bootmap == -1L)
706 panic("Cannot find bootmem map of size %ld\n", bootmap_size);
707 reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
708
709 /* don't touch min_low_pfn */
710 bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap >> PAGE_SHIFT,
711 min_low_pfn, max_low_pfn);
712 printk(KERN_INFO " mapped low ram: 0 - %08lx\n",
713 max_pfn_mapped<<PAGE_SHIFT);
714 printk(KERN_INFO " low ram: %08lx - %08lx\n",
715 min_low_pfn<<PAGE_SHIFT, max_low_pfn<<PAGE_SHIFT);
716 printk(KERN_INFO " bootmap %08lx - %08lx\n",
717 bootmap, bootmap + bootmap_size);
718 for_each_online_node(i)
719 free_bootmem_with_active_regions(i, max_low_pfn);
720 early_res_to_bootmem(0, max_low_pfn<<PAGE_SHIFT);
721
722 after_init_bootmem = 1;
723}
724
725static void __init find_early_table_space(unsigned long end)
726{
727 unsigned long puds, pmds, ptes, tables, start;
728
729 puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
730 tables = PAGE_ALIGN(puds * sizeof(pud_t));
731
732 pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT;
733 tables += PAGE_ALIGN(pmds * sizeof(pmd_t));
734
735 if (cpu_has_pse) {
736 unsigned long extra;
737
738 extra = end - ((end>>PMD_SHIFT) << PMD_SHIFT);
739 extra += PMD_SIZE;
740 ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT;
741 } else
742 ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT;
743
744 tables += PAGE_ALIGN(ptes * sizeof(pte_t));
745
746 /* for fixmap */
747 tables += PAGE_SIZE * 2;
748
749 /*
750 * RED-PEN putting page tables only on node 0 could
751 * cause a hotspot and fill up ZONE_DMA. The page tables
752 * need roughly 0.5KB per GB.
753 */
754 start = 0x7000;
755 table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT,
756 tables, PAGE_SIZE);
757 if (table_start == -1UL)
758 panic("Cannot find space for the kernel page tables");
759
760 table_start >>= PAGE_SHIFT;
761 table_end = table_start;
762 table_top = table_start + (tables>>PAGE_SHIFT);
763
764 printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n",
765 end, table_start << PAGE_SHIFT,
766 (table_start << PAGE_SHIFT) + tables);
767}
768
769unsigned long __init_refok init_memory_mapping(unsigned long start,
770 unsigned long end)
771{
772 pgd_t *pgd_base = swapper_pg_dir;
773 unsigned long start_pfn, end_pfn;
774 unsigned long big_page_start;
775
776 /*
777 * Find space for the kernel direct mapping tables.
778 */
779 if (!after_init_bootmem)
780 find_early_table_space(end);
781
521#ifdef CONFIG_X86_PAE 782#ifdef CONFIG_X86_PAE
522 set_nx(); 783 set_nx();
523 if (nx_enabled) 784 if (nx_enabled)
524 printk(KERN_INFO "NX (Execute Disable) protection: active\n"); 785 printk(KERN_INFO "NX (Execute Disable) protection: active\n");
525#endif 786#endif
526 pagetable_init(); 787
788 /* Enable PSE if available */
789 if (cpu_has_pse)
790 set_in_cr4(X86_CR4_PSE);
791
792 /* Enable PGE if available */
793 if (cpu_has_pge) {
794 set_in_cr4(X86_CR4_PGE);
795 __supported_pte_mask |= _PAGE_GLOBAL;
796 }
797
798 /*
799 * Don't use a large page for the first 2/4MB of memory
800 * because there are often fixed size MTRRs in there
801 * and overlapping MTRRs into large pages can cause
802 * slowdowns.
803 */
804 big_page_start = PMD_SIZE;
805
806 if (start < big_page_start) {
807 start_pfn = start >> PAGE_SHIFT;
808 end_pfn = min(big_page_start>>PAGE_SHIFT, end>>PAGE_SHIFT);
809 } else {
810 /* head is not big page alignment ? */
811 start_pfn = start >> PAGE_SHIFT;
812 end_pfn = ((start + (PMD_SIZE - 1))>>PMD_SHIFT)
813 << (PMD_SHIFT - PAGE_SHIFT);
814 }
815 if (start_pfn < end_pfn)
816 kernel_physical_mapping_init(pgd_base, start_pfn, end_pfn, 0);
817
818 /* big page range */
819 start_pfn = ((start + (PMD_SIZE - 1))>>PMD_SHIFT)
820 << (PMD_SHIFT - PAGE_SHIFT);
821 if (start_pfn < (big_page_start >> PAGE_SHIFT))
822 start_pfn = big_page_start >> PAGE_SHIFT;
823 end_pfn = (end>>PMD_SHIFT) << (PMD_SHIFT - PAGE_SHIFT);
824 if (start_pfn < end_pfn)
825 kernel_physical_mapping_init(pgd_base, start_pfn, end_pfn,
826 cpu_has_pse);
827
828 /* tail is not big page alignment ? */
829 start_pfn = end_pfn;
830 if (start_pfn > (big_page_start>>PAGE_SHIFT)) {
831 end_pfn = end >> PAGE_SHIFT;
832 if (start_pfn < end_pfn)
833 kernel_physical_mapping_init(pgd_base, start_pfn,
834 end_pfn, 0);
835 }
836
837 early_ioremap_page_table_range_init(pgd_base);
527 838
528 load_cr3(swapper_pg_dir); 839 load_cr3(swapper_pg_dir);
529 840
530 __flush_tlb_all(); 841 __flush_tlb_all();
531 842
843 if (!after_init_bootmem)
844 reserve_early(table_start << PAGE_SHIFT,
845 table_end << PAGE_SHIFT, "PGTABLE");
846
847 return end >> PAGE_SHIFT;
848}
849
850
851/*
852 * paging_init() sets up the page tables - note that the first 8MB are
853 * already mapped by head.S.
854 *
855 * This routines also unmaps the page at virtual kernel address 0, so
856 * that we can trap those pesky NULL-reference errors in the kernel.
857 */
858void __init paging_init(void)
859{
860 pagetable_init();
861
862 __flush_tlb_all();
863
532 kmap_init(); 864 kmap_init();
865
866 /*
867 * NOTE: at this point the bootmem allocator is fully available.
868 */
869 sparse_init();
870 zone_sizes_init();
871
872 paravirt_post_allocator_init();
533} 873}
534 874
535/* 875/*
@@ -564,24 +904,11 @@ static struct kcore_list kcore_mem, kcore_vmalloc;
564void __init mem_init(void) 904void __init mem_init(void)
565{ 905{
566 int codesize, reservedpages, datasize, initsize; 906 int codesize, reservedpages, datasize, initsize;
567 int tmp, bad_ppro; 907 int tmp;
568 908
569#ifdef CONFIG_FLATMEM 909#ifdef CONFIG_FLATMEM
570 BUG_ON(!mem_map); 910 BUG_ON(!mem_map);
571#endif 911#endif
572 bad_ppro = ppro_with_ram_bug();
573
574#ifdef CONFIG_HIGHMEM
575 /* check that fixmap and pkmap do not overlap */
576 if (PKMAP_BASE + LAST_PKMAP*PAGE_SIZE >= FIXADDR_START) {
577 printk(KERN_ERR
578 "fixmap and kmap areas overlap - this will crash\n");
579 printk(KERN_ERR "pkstart: %lxh pkend: %lxh fixstart %lxh\n",
580 PKMAP_BASE, PKMAP_BASE + LAST_PKMAP*PAGE_SIZE,
581 FIXADDR_START);
582 BUG();
583 }
584#endif
585 /* this will put all low memory onto the freelists */ 912 /* this will put all low memory onto the freelists */
586 totalram_pages += free_all_bootmem(); 913 totalram_pages += free_all_bootmem();
587 914
@@ -593,7 +920,7 @@ void __init mem_init(void)
593 if (page_is_ram(tmp) && PageReserved(pfn_to_page(tmp))) 920 if (page_is_ram(tmp) && PageReserved(pfn_to_page(tmp)))
594 reservedpages++; 921 reservedpages++;
595 922
596 set_highmem_pages_init(bad_ppro); 923 set_highmem_pages_init();
597 924
598 codesize = (unsigned long) &_etext - (unsigned long) &_text; 925 codesize = (unsigned long) &_etext - (unsigned long) &_text;
599 datasize = (unsigned long) &_edata - (unsigned long) &_etext; 926 datasize = (unsigned long) &_edata - (unsigned long) &_etext;
@@ -614,7 +941,6 @@ void __init mem_init(void)
614 (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)) 941 (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10))
615 ); 942 );
616 943
617#if 1 /* double-sanity-check paranoia */
618 printk(KERN_INFO "virtual kernel memory layout:\n" 944 printk(KERN_INFO "virtual kernel memory layout:\n"
619 " fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n" 945 " fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
620#ifdef CONFIG_HIGHMEM 946#ifdef CONFIG_HIGHMEM
@@ -655,7 +981,6 @@ void __init mem_init(void)
655#endif 981#endif
656 BUG_ON(VMALLOC_START > VMALLOC_END); 982 BUG_ON(VMALLOC_START > VMALLOC_END);
657 BUG_ON((unsigned long)high_memory > VMALLOC_START); 983 BUG_ON((unsigned long)high_memory > VMALLOC_START);
658#endif /* double-sanity-check paranoia */
659 984
660 if (boot_cpu_data.wp_works_ok < 0) 985 if (boot_cpu_data.wp_works_ok < 0)
661 test_wp_bit(); 986 test_wp_bit();
@@ -710,6 +1035,8 @@ void mark_rodata_ro(void)
710 unsigned long start = PFN_ALIGN(_text); 1035 unsigned long start = PFN_ALIGN(_text);
711 unsigned long size = PFN_ALIGN(_etext) - start; 1036 unsigned long size = PFN_ALIGN(_etext) - start;
712 1037
1038#ifndef CONFIG_DYNAMIC_FTRACE
1039 /* Dynamic tracing modifies the kernel text section */
713 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); 1040 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
714 printk(KERN_INFO "Write protecting the kernel text: %luk\n", 1041 printk(KERN_INFO "Write protecting the kernel text: %luk\n",
715 size >> 10); 1042 size >> 10);
@@ -722,6 +1049,8 @@ void mark_rodata_ro(void)
722 printk(KERN_INFO "Testing CPA: write protecting again\n"); 1049 printk(KERN_INFO "Testing CPA: write protecting again\n");
723 set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT); 1050 set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT);
724#endif 1051#endif
1052#endif /* CONFIG_DYNAMIC_FTRACE */
1053
725 start += size; 1054 start += size;
726 size = (unsigned long)__end_rodata - start; 1055 size = (unsigned long)__end_rodata - start;
727 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); 1056 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
@@ -784,3 +1113,9 @@ void free_initrd_mem(unsigned long start, unsigned long end)
784 free_init_pages("initrd memory", start, end); 1113 free_init_pages("initrd memory", start, end);
785} 1114}
786#endif 1115#endif
1116
1117int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
1118 int flags)
1119{
1120 return reserve_bootmem(phys, len, flags);
1121}
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 32ba13b0f818..306049edd553 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -18,6 +18,7 @@
18#include <linux/swap.h> 18#include <linux/swap.h>
19#include <linux/smp.h> 19#include <linux/smp.h>
20#include <linux/init.h> 20#include <linux/init.h>
21#include <linux/initrd.h>
21#include <linux/pagemap.h> 22#include <linux/pagemap.h>
22#include <linux/bootmem.h> 23#include <linux/bootmem.h>
23#include <linux/proc_fs.h> 24#include <linux/proc_fs.h>
@@ -47,6 +48,14 @@
47#include <asm/numa.h> 48#include <asm/numa.h>
48#include <asm/cacheflush.h> 49#include <asm/cacheflush.h>
49 50
51/*
52 * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
53 * The direct mapping extends to max_pfn_mapped, so that we can directly access
54 * apertures, ACPI and other tables without having to play with fixmaps.
55 */
56unsigned long max_low_pfn_mapped;
57unsigned long max_pfn_mapped;
58
50static unsigned long dma_reserve __initdata; 59static unsigned long dma_reserve __initdata;
51 60
52DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); 61DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
@@ -135,26 +144,17 @@ static __init void *spp_getpage(void)
135 return ptr; 144 return ptr;
136} 145}
137 146
138static void 147void
139set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot) 148set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
140{ 149{
141 pgd_t *pgd;
142 pud_t *pud; 150 pud_t *pud;
143 pmd_t *pmd; 151 pmd_t *pmd;
144 pte_t *pte, new_pte; 152 pte_t *pte;
145
146 pr_debug("set_pte_phys %lx to %lx\n", vaddr, phys);
147 153
148 pgd = pgd_offset_k(vaddr); 154 pud = pud_page + pud_index(vaddr);
149 if (pgd_none(*pgd)) {
150 printk(KERN_ERR
151 "PGD FIXMAP MISSING, it should be setup in head.S!\n");
152 return;
153 }
154 pud = pud_offset(pgd, vaddr);
155 if (pud_none(*pud)) { 155 if (pud_none(*pud)) {
156 pmd = (pmd_t *) spp_getpage(); 156 pmd = (pmd_t *) spp_getpage();
157 set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER)); 157 pud_populate(&init_mm, pud, pmd);
158 if (pmd != pmd_offset(pud, 0)) { 158 if (pmd != pmd_offset(pud, 0)) {
159 printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n", 159 printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
160 pmd, pmd_offset(pud, 0)); 160 pmd, pmd_offset(pud, 0));
@@ -164,13 +164,12 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot)
164 pmd = pmd_offset(pud, vaddr); 164 pmd = pmd_offset(pud, vaddr);
165 if (pmd_none(*pmd)) { 165 if (pmd_none(*pmd)) {
166 pte = (pte_t *) spp_getpage(); 166 pte = (pte_t *) spp_getpage();
167 set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE | _PAGE_USER)); 167 pmd_populate_kernel(&init_mm, pmd, pte);
168 if (pte != pte_offset_kernel(pmd, 0)) { 168 if (pte != pte_offset_kernel(pmd, 0)) {
169 printk(KERN_ERR "PAGETABLE BUG #02!\n"); 169 printk(KERN_ERR "PAGETABLE BUG #02!\n");
170 return; 170 return;
171 } 171 }
172 } 172 }
173 new_pte = pfn_pte(phys >> PAGE_SHIFT, prot);
174 173
175 pte = pte_offset_kernel(pmd, vaddr); 174 pte = pte_offset_kernel(pmd, vaddr);
176 if (!pte_none(*pte) && pte_val(new_pte) && 175 if (!pte_none(*pte) && pte_val(new_pte) &&
@@ -185,6 +184,64 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot)
185 __flush_tlb_one(vaddr); 184 __flush_tlb_one(vaddr);
186} 185}
187 186
187void
188set_pte_vaddr(unsigned long vaddr, pte_t pteval)
189{
190 pgd_t *pgd;
191 pud_t *pud_page;
192
193 pr_debug("set_pte_vaddr %lx to %lx\n", vaddr, native_pte_val(pteval));
194
195 pgd = pgd_offset_k(vaddr);
196 if (pgd_none(*pgd)) {
197 printk(KERN_ERR
198 "PGD FIXMAP MISSING, it should be setup in head.S!\n");
199 return;
200 }
201 pud_page = (pud_t*)pgd_page_vaddr(*pgd);
202 set_pte_vaddr_pud(pud_page, vaddr, pteval);
203}
204
205/*
206 * Create large page table mappings for a range of physical addresses.
207 */
208static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
209 pgprot_t prot)
210{
211 pgd_t *pgd;
212 pud_t *pud;
213 pmd_t *pmd;
214
215 BUG_ON((phys & ~PMD_MASK) || (size & ~PMD_MASK));
216 for (; size; phys += PMD_SIZE, size -= PMD_SIZE) {
217 pgd = pgd_offset_k((unsigned long)__va(phys));
218 if (pgd_none(*pgd)) {
219 pud = (pud_t *) spp_getpage();
220 set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
221 _PAGE_USER));
222 }
223 pud = pud_offset(pgd, (unsigned long)__va(phys));
224 if (pud_none(*pud)) {
225 pmd = (pmd_t *) spp_getpage();
226 set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
227 _PAGE_USER));
228 }
229 pmd = pmd_offset(pud, phys);
230 BUG_ON(!pmd_none(*pmd));
231 set_pmd(pmd, __pmd(phys | pgprot_val(prot)));
232 }
233}
234
235void __init init_extra_mapping_wb(unsigned long phys, unsigned long size)
236{
237 __init_extra_mapping(phys, size, PAGE_KERNEL_LARGE);
238}
239
240void __init init_extra_mapping_uc(unsigned long phys, unsigned long size)
241{
242 __init_extra_mapping(phys, size, PAGE_KERNEL_LARGE_NOCACHE);
243}
244
188/* 245/*
189 * The head.S code sets up the kernel high mapping: 246 * The head.S code sets up the kernel high mapping:
190 * 247 *
@@ -206,27 +263,16 @@ void __init cleanup_highmap(void)
206 pmd_t *last_pmd = pmd + PTRS_PER_PMD; 263 pmd_t *last_pmd = pmd + PTRS_PER_PMD;
207 264
208 for (; pmd < last_pmd; pmd++, vaddr += PMD_SIZE) { 265 for (; pmd < last_pmd; pmd++, vaddr += PMD_SIZE) {
209 if (!pmd_present(*pmd)) 266 if (pmd_none(*pmd))
210 continue; 267 continue;
211 if (vaddr < (unsigned long) _text || vaddr > end) 268 if (vaddr < (unsigned long) _text || vaddr > end)
212 set_pmd(pmd, __pmd(0)); 269 set_pmd(pmd, __pmd(0));
213 } 270 }
214} 271}
215 272
216/* NOTE: this is meant to be run only at boot */
217void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
218{
219 unsigned long address = __fix_to_virt(idx);
220
221 if (idx >= __end_of_fixed_addresses) {
222 printk(KERN_ERR "Invalid __set_fixmap\n");
223 return;
224 }
225 set_pte_phys(address, phys, prot);
226}
227
228static unsigned long __initdata table_start; 273static unsigned long __initdata table_start;
229static unsigned long __meminitdata table_end; 274static unsigned long __meminitdata table_end;
275static unsigned long __meminitdata table_top;
230 276
231static __meminit void *alloc_low_page(unsigned long *phys) 277static __meminit void *alloc_low_page(unsigned long *phys)
232{ 278{
@@ -240,7 +286,7 @@ static __meminit void *alloc_low_page(unsigned long *phys)
240 return adr; 286 return adr;
241 } 287 }
242 288
243 if (pfn >= end_pfn) 289 if (pfn >= table_top)
244 panic("alloc_low_page: ran out of memory"); 290 panic("alloc_low_page: ran out of memory");
245 291
246 adr = early_ioremap(pfn * PAGE_SIZE, PAGE_SIZE); 292 adr = early_ioremap(pfn * PAGE_SIZE, PAGE_SIZE);
@@ -257,65 +303,61 @@ static __meminit void unmap_low_page(void *adr)
257 early_iounmap(adr, PAGE_SIZE); 303 early_iounmap(adr, PAGE_SIZE);
258} 304}
259 305
260/* Must run before zap_low_mappings */ 306static unsigned long __meminit
261__meminit void *early_ioremap(unsigned long addr, unsigned long size) 307phys_pte_init(pte_t *pte_page, unsigned long addr, unsigned long end)
262{ 308{
263 pmd_t *pmd, *last_pmd; 309 unsigned pages = 0;
264 unsigned long vaddr; 310 unsigned long last_map_addr = end;
265 int i, pmds; 311 int i;
312
313 pte_t *pte = pte_page + pte_index(addr);
266 314
267 pmds = ((addr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE; 315 for(i = pte_index(addr); i < PTRS_PER_PTE; i++, addr += PAGE_SIZE, pte++) {
268 vaddr = __START_KERNEL_map;
269 pmd = level2_kernel_pgt;
270 last_pmd = level2_kernel_pgt + PTRS_PER_PMD - 1;
271 316
272 for (; pmd <= last_pmd; pmd++, vaddr += PMD_SIZE) { 317 if (addr >= end) {
273 for (i = 0; i < pmds; i++) { 318 if (!after_bootmem) {
274 if (pmd_present(pmd[i])) 319 for(; i < PTRS_PER_PTE; i++, pte++)
275 goto continue_outer_loop; 320 set_pte(pte, __pte(0));
321 }
322 break;
276 } 323 }
277 vaddr += addr & ~PMD_MASK;
278 addr &= PMD_MASK;
279 324
280 for (i = 0; i < pmds; i++, addr += PMD_SIZE) 325 if (pte_val(*pte))
281 set_pmd(pmd+i, __pmd(addr | __PAGE_KERNEL_LARGE_EXEC)); 326 continue;
282 __flush_tlb_all();
283 327
284 return (void *)vaddr; 328 if (0)
285continue_outer_loop: 329 printk(" pte=%p addr=%lx pte=%016lx\n",
286 ; 330 pte, addr, pfn_pte(addr >> PAGE_SHIFT, PAGE_KERNEL).pte);
331 set_pte(pte, pfn_pte(addr >> PAGE_SHIFT, PAGE_KERNEL));
332 last_map_addr = (addr & PAGE_MASK) + PAGE_SIZE;
333 pages++;
287 } 334 }
288 printk(KERN_ERR "early_ioremap(0x%lx, %lu) failed\n", addr, size); 335 update_page_count(PG_LEVEL_4K, pages);
289 336
290 return NULL; 337 return last_map_addr;
291} 338}
292 339
293/* 340static unsigned long __meminit
294 * To avoid virtual aliases later: 341phys_pte_update(pmd_t *pmd, unsigned long address, unsigned long end)
295 */
296__meminit void early_iounmap(void *addr, unsigned long size)
297{ 342{
298 unsigned long vaddr; 343 pte_t *pte = (pte_t *)pmd_page_vaddr(*pmd);
299 pmd_t *pmd;
300 int i, pmds;
301
302 vaddr = (unsigned long)addr;
303 pmds = ((vaddr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE;
304 pmd = level2_kernel_pgt + pmd_index(vaddr);
305 344
306 for (i = 0; i < pmds; i++) 345 return phys_pte_init(pte, address, end);
307 pmd_clear(pmd + i);
308
309 __flush_tlb_all();
310} 346}
311 347
312static unsigned long __meminit 348static unsigned long __meminit
313phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end) 349phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end,
350 unsigned long page_size_mask)
314{ 351{
352 unsigned long pages = 0;
353 unsigned long last_map_addr = end;
354
315 int i = pmd_index(address); 355 int i = pmd_index(address);
316 356
317 for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) { 357 for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) {
358 unsigned long pte_phys;
318 pmd_t *pmd = pmd_page + pmd_index(address); 359 pmd_t *pmd = pmd_page + pmd_index(address);
360 pte_t *pte;
319 361
320 if (address >= end) { 362 if (address >= end) {
321 if (!after_bootmem) { 363 if (!after_bootmem) {
@@ -325,31 +367,50 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end)
325 break; 367 break;
326 } 368 }
327 369
328 if (pmd_val(*pmd)) 370 if (pmd_val(*pmd)) {
371 if (!pmd_large(*pmd))
372 last_map_addr = phys_pte_update(pmd, address,
373 end);
374 continue;
375 }
376
377 if (page_size_mask & (1<<PG_LEVEL_2M)) {
378 pages++;
379 set_pte((pte_t *)pmd,
380 pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
381 last_map_addr = (address & PMD_MASK) + PMD_SIZE;
329 continue; 382 continue;
383 }
330 384
331 set_pte((pte_t *)pmd, 385 pte = alloc_low_page(&pte_phys);
332 pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE)); 386 last_map_addr = phys_pte_init(pte, address, end);
387 unmap_low_page(pte);
388
389 pmd_populate_kernel(&init_mm, pmd, __va(pte_phys));
333 } 390 }
334 return address; 391 update_page_count(PG_LEVEL_2M, pages);
392 return last_map_addr;
335} 393}
336 394
337static unsigned long __meminit 395static unsigned long __meminit
338phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end) 396phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end,
397 unsigned long page_size_mask)
339{ 398{
340 pmd_t *pmd = pmd_offset(pud, 0); 399 pmd_t *pmd = pmd_offset(pud, 0);
341 unsigned long last_map_addr; 400 unsigned long last_map_addr;
342 401
343 spin_lock(&init_mm.page_table_lock); 402 spin_lock(&init_mm.page_table_lock);
344 last_map_addr = phys_pmd_init(pmd, address, end); 403 last_map_addr = phys_pmd_init(pmd, address, end, page_size_mask);
345 spin_unlock(&init_mm.page_table_lock); 404 spin_unlock(&init_mm.page_table_lock);
346 __flush_tlb_all(); 405 __flush_tlb_all();
347 return last_map_addr; 406 return last_map_addr;
348} 407}
349 408
350static unsigned long __meminit 409static unsigned long __meminit
351phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end) 410phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
411 unsigned long page_size_mask)
352{ 412{
413 unsigned long pages = 0;
353 unsigned long last_map_addr = end; 414 unsigned long last_map_addr = end;
354 int i = pud_index(addr); 415 int i = pud_index(addr);
355 416
@@ -369,11 +430,13 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
369 430
370 if (pud_val(*pud)) { 431 if (pud_val(*pud)) {
371 if (!pud_large(*pud)) 432 if (!pud_large(*pud))
372 last_map_addr = phys_pmd_update(pud, addr, end); 433 last_map_addr = phys_pmd_update(pud, addr, end,
434 page_size_mask);
373 continue; 435 continue;
374 } 436 }
375 437
376 if (direct_gbpages) { 438 if (page_size_mask & (1<<PG_LEVEL_1G)) {
439 pages++;
377 set_pte((pte_t *)pud, 440 set_pte((pte_t *)pud,
378 pfn_pte(addr >> PAGE_SHIFT, PAGE_KERNEL_LARGE)); 441 pfn_pte(addr >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
379 last_map_addr = (addr & PUD_MASK) + PUD_SIZE; 442 last_map_addr = (addr & PUD_MASK) + PUD_SIZE;
@@ -383,27 +446,50 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end)
383 pmd = alloc_low_page(&pmd_phys); 446 pmd = alloc_low_page(&pmd_phys);
384 447
385 spin_lock(&init_mm.page_table_lock); 448 spin_lock(&init_mm.page_table_lock);
386 set_pud(pud, __pud(pmd_phys | _KERNPG_TABLE)); 449 last_map_addr = phys_pmd_init(pmd, addr, end, page_size_mask);
387 last_map_addr = phys_pmd_init(pmd, addr, end); 450 unmap_low_page(pmd);
451 pud_populate(&init_mm, pud, __va(pmd_phys));
388 spin_unlock(&init_mm.page_table_lock); 452 spin_unlock(&init_mm.page_table_lock);
389 453
390 unmap_low_page(pmd);
391 } 454 }
392 __flush_tlb_all(); 455 __flush_tlb_all();
456 update_page_count(PG_LEVEL_1G, pages);
393 457
394 return last_map_addr >> PAGE_SHIFT; 458 return last_map_addr;
459}
460
461static unsigned long __meminit
462phys_pud_update(pgd_t *pgd, unsigned long addr, unsigned long end,
463 unsigned long page_size_mask)
464{
465 pud_t *pud;
466
467 pud = (pud_t *)pgd_page_vaddr(*pgd);
468
469 return phys_pud_init(pud, addr, end, page_size_mask);
395} 470}
396 471
397static void __init find_early_table_space(unsigned long end) 472static void __init find_early_table_space(unsigned long end)
398{ 473{
399 unsigned long puds, pmds, tables, start; 474 unsigned long puds, pmds, ptes, tables, start;
400 475
401 puds = (end + PUD_SIZE - 1) >> PUD_SHIFT; 476 puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
402 tables = round_up(puds * sizeof(pud_t), PAGE_SIZE); 477 tables = round_up(puds * sizeof(pud_t), PAGE_SIZE);
403 if (!direct_gbpages) { 478 if (direct_gbpages) {
479 unsigned long extra;
480 extra = end - ((end>>PUD_SHIFT) << PUD_SHIFT);
481 pmds = (extra + PMD_SIZE - 1) >> PMD_SHIFT;
482 } else
404 pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT; 483 pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT;
405 tables += round_up(pmds * sizeof(pmd_t), PAGE_SIZE); 484 tables += round_up(pmds * sizeof(pmd_t), PAGE_SIZE);
406 } 485
486 if (cpu_has_pse) {
487 unsigned long extra;
488 extra = end - ((end>>PMD_SHIFT) << PMD_SHIFT);
489 ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT;
490 } else
491 ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT;
492 tables += round_up(ptes * sizeof(pte_t), PAGE_SIZE);
407 493
408 /* 494 /*
409 * RED-PEN putting page tables only on node 0 could 495 * RED-PEN putting page tables only on node 0 could
@@ -417,10 +503,10 @@ static void __init find_early_table_space(unsigned long end)
417 503
418 table_start >>= PAGE_SHIFT; 504 table_start >>= PAGE_SHIFT;
419 table_end = table_start; 505 table_end = table_start;
506 table_top = table_start + (tables >> PAGE_SHIFT);
420 507
421 early_printk("kernel direct mapping tables up to %lx @ %lx-%lx\n", 508 printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n",
422 end, table_start << PAGE_SHIFT, 509 end, table_start << PAGE_SHIFT, table_top << PAGE_SHIFT);
423 (table_start << PAGE_SHIFT) + tables);
424} 510}
425 511
426static void __init init_gbpages(void) 512static void __init init_gbpages(void)
@@ -431,7 +517,7 @@ static void __init init_gbpages(void)
431 direct_gbpages = 0; 517 direct_gbpages = 0;
432} 518}
433 519
434#ifdef CONFIG_MEMTEST_BOOTPARAM 520#ifdef CONFIG_MEMTEST
435 521
436static void __init memtest(unsigned long start_phys, unsigned long size, 522static void __init memtest(unsigned long start_phys, unsigned long size,
437 unsigned pattern) 523 unsigned pattern)
@@ -493,7 +579,8 @@ static void __init memtest(unsigned long start_phys, unsigned long size,
493 579
494} 580}
495 581
496static int memtest_pattern __initdata = CONFIG_MEMTEST_BOOTPARAM_VALUE; 582/* default is disabled */
583static int memtest_pattern __initdata;
497 584
498static int __init parse_memtest(char *arg) 585static int __init parse_memtest(char *arg)
499{ 586{
@@ -506,7 +593,7 @@ early_param("memtest", parse_memtest);
506 593
507static void __init early_memtest(unsigned long start, unsigned long end) 594static void __init early_memtest(unsigned long start, unsigned long end)
508{ 595{
509 unsigned long t_start, t_size; 596 u64 t_start, t_size;
510 unsigned pattern; 597 unsigned pattern;
511 598
512 if (!memtest_pattern) 599 if (!memtest_pattern)
@@ -525,8 +612,9 @@ static void __init early_memtest(unsigned long start, unsigned long end)
525 if (t_start + t_size > end) 612 if (t_start + t_size > end)
526 t_size = end - t_start; 613 t_size = end - t_start;
527 614
528 printk(KERN_CONT "\n %016lx - %016lx pattern %d", 615 printk(KERN_CONT "\n %016llx - %016llx pattern %d",
529 t_start, t_start + t_size, pattern); 616 (unsigned long long)t_start,
617 (unsigned long long)t_start + t_size, pattern);
530 618
531 memtest(t_start, t_size, pattern); 619 memtest(t_start, t_size, pattern);
532 620
@@ -541,15 +629,85 @@ static void __init early_memtest(unsigned long start, unsigned long end)
541} 629}
542#endif 630#endif
543 631
632static unsigned long __init kernel_physical_mapping_init(unsigned long start,
633 unsigned long end,
634 unsigned long page_size_mask)
635{
636
637 unsigned long next, last_map_addr = end;
638
639 start = (unsigned long)__va(start);
640 end = (unsigned long)__va(end);
641
642 for (; start < end; start = next) {
643 pgd_t *pgd = pgd_offset_k(start);
644 unsigned long pud_phys;
645 pud_t *pud;
646
647 next = (start + PGDIR_SIZE) & PGDIR_MASK;
648 if (next > end)
649 next = end;
650
651 if (pgd_val(*pgd)) {
652 last_map_addr = phys_pud_update(pgd, __pa(start),
653 __pa(end), page_size_mask);
654 continue;
655 }
656
657 if (after_bootmem)
658 pud = pud_offset(pgd, start & PGDIR_MASK);
659 else
660 pud = alloc_low_page(&pud_phys);
661
662 last_map_addr = phys_pud_init(pud, __pa(start), __pa(next),
663 page_size_mask);
664 unmap_low_page(pud);
665 pgd_populate(&init_mm, pgd_offset_k(start),
666 __va(pud_phys));
667 }
668
669 return last_map_addr;
670}
671
672struct map_range {
673 unsigned long start;
674 unsigned long end;
675 unsigned page_size_mask;
676};
677
678#define NR_RANGE_MR 5
679
680static int save_mr(struct map_range *mr, int nr_range,
681 unsigned long start_pfn, unsigned long end_pfn,
682 unsigned long page_size_mask)
683{
684
685 if (start_pfn < end_pfn) {
686 if (nr_range >= NR_RANGE_MR)
687 panic("run out of range for init_memory_mapping\n");
688 mr[nr_range].start = start_pfn<<PAGE_SHIFT;
689 mr[nr_range].end = end_pfn<<PAGE_SHIFT;
690 mr[nr_range].page_size_mask = page_size_mask;
691 nr_range++;
692 }
693
694 return nr_range;
695}
696
544/* 697/*
545 * Setup the direct mapping of the physical memory at PAGE_OFFSET. 698 * Setup the direct mapping of the physical memory at PAGE_OFFSET.
546 * This runs before bootmem is initialized and gets pages directly from 699 * This runs before bootmem is initialized and gets pages directly from
547 * the physical memory. To access them they are temporarily mapped. 700 * the physical memory. To access them they are temporarily mapped.
548 */ 701 */
549unsigned long __init_refok init_memory_mapping(unsigned long start, unsigned long end) 702unsigned long __init_refok init_memory_mapping(unsigned long start,
703 unsigned long end)
550{ 704{
551 unsigned long next, last_map_addr = end; 705 unsigned long last_map_addr = 0;
552 unsigned long start_phys = start, end_phys = end; 706 unsigned long page_size_mask = 0;
707 unsigned long start_pfn, end_pfn;
708
709 struct map_range mr[NR_RANGE_MR];
710 int nr_range, i;
553 711
554 printk(KERN_INFO "init_memory_mapping\n"); 712 printk(KERN_INFO "init_memory_mapping\n");
555 713
@@ -560,48 +718,115 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, unsigned lon
560 * memory mapped. Unfortunately this is done currently before the 718 * memory mapped. Unfortunately this is done currently before the
561 * nodes are discovered. 719 * nodes are discovered.
562 */ 720 */
563 if (!after_bootmem) { 721 if (!after_bootmem)
564 init_gbpages(); 722 init_gbpages();
565 find_early_table_space(end); 723
724 if (direct_gbpages)
725 page_size_mask |= 1 << PG_LEVEL_1G;
726 if (cpu_has_pse)
727 page_size_mask |= 1 << PG_LEVEL_2M;
728
729 memset(mr, 0, sizeof(mr));
730 nr_range = 0;
731
732 /* head if not big page alignment ?*/
733 start_pfn = start >> PAGE_SHIFT;
734 end_pfn = ((start + (PMD_SIZE - 1)) >> PMD_SHIFT)
735 << (PMD_SHIFT - PAGE_SHIFT);
736 nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
737
738 /* big page (2M) range*/
739 start_pfn = ((start + (PMD_SIZE - 1))>>PMD_SHIFT)
740 << (PMD_SHIFT - PAGE_SHIFT);
741 end_pfn = ((start + (PUD_SIZE - 1))>>PUD_SHIFT)
742 << (PUD_SHIFT - PAGE_SHIFT);
743 if (end_pfn > ((end>>PUD_SHIFT)<<(PUD_SHIFT - PAGE_SHIFT)))
744 end_pfn = ((end>>PUD_SHIFT)<<(PUD_SHIFT - PAGE_SHIFT));
745 nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
746 page_size_mask & (1<<PG_LEVEL_2M));
747
748 /* big page (1G) range */
749 start_pfn = end_pfn;
750 end_pfn = (end>>PUD_SHIFT) << (PUD_SHIFT - PAGE_SHIFT);
751 nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
752 page_size_mask &
753 ((1<<PG_LEVEL_2M)|(1<<PG_LEVEL_1G)));
754
755 /* tail is not big page (1G) alignment */
756 start_pfn = end_pfn;
757 end_pfn = (end>>PMD_SHIFT) << (PMD_SHIFT - PAGE_SHIFT);
758 nr_range = save_mr(mr, nr_range, start_pfn, end_pfn,
759 page_size_mask & (1<<PG_LEVEL_2M));
760
761 /* tail is not big page (2M) alignment */
762 start_pfn = end_pfn;
763 end_pfn = end>>PAGE_SHIFT;
764 nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
765
766 /* try to merge same page size and continuous */
767 for (i = 0; nr_range > 1 && i < nr_range - 1; i++) {
768 unsigned long old_start;
769 if (mr[i].end != mr[i+1].start ||
770 mr[i].page_size_mask != mr[i+1].page_size_mask)
771 continue;
772 /* move it */
773 old_start = mr[i].start;
774 memmove(&mr[i], &mr[i+1],
775 (nr_range - 1 - i) * sizeof (struct map_range));
776 mr[i].start = old_start;
777 nr_range--;
566 } 778 }
567 779
568 start = (unsigned long)__va(start); 780 for (i = 0; i < nr_range; i++)
569 end = (unsigned long)__va(end); 781 printk(KERN_DEBUG " %010lx - %010lx page %s\n",
782 mr[i].start, mr[i].end,
783 (mr[i].page_size_mask & (1<<PG_LEVEL_1G))?"1G":(
784 (mr[i].page_size_mask & (1<<PG_LEVEL_2M))?"2M":"4k"));
570 785
571 for (; start < end; start = next) { 786 if (!after_bootmem)
572 pgd_t *pgd = pgd_offset_k(start); 787 find_early_table_space(end);
573 unsigned long pud_phys;
574 pud_t *pud;
575
576 if (after_bootmem)
577 pud = pud_offset(pgd, start & PGDIR_MASK);
578 else
579 pud = alloc_low_page(&pud_phys);
580 788
581 next = start + PGDIR_SIZE; 789 for (i = 0; i < nr_range; i++)
582 if (next > end) 790 last_map_addr = kernel_physical_mapping_init(
583 next = end; 791 mr[i].start, mr[i].end,
584 last_map_addr = phys_pud_init(pud, __pa(start), __pa(next)); 792 mr[i].page_size_mask);
585 if (!after_bootmem)
586 set_pgd(pgd_offset_k(start), mk_kernel_pgd(pud_phys));
587 unmap_low_page(pud);
588 }
589 793
590 if (!after_bootmem) 794 if (!after_bootmem)
591 mmu_cr4_features = read_cr4(); 795 mmu_cr4_features = read_cr4();
592 __flush_tlb_all(); 796 __flush_tlb_all();
593 797
594 if (!after_bootmem) 798 if (!after_bootmem && table_end > table_start)
595 reserve_early(table_start << PAGE_SHIFT, 799 reserve_early(table_start << PAGE_SHIFT,
596 table_end << PAGE_SHIFT, "PGTABLE"); 800 table_end << PAGE_SHIFT, "PGTABLE");
597 801
802 printk(KERN_INFO "last_map_addr: %lx end: %lx\n",
803 last_map_addr, end);
804
598 if (!after_bootmem) 805 if (!after_bootmem)
599 early_memtest(start_phys, end_phys); 806 early_memtest(start, end);
600 807
601 return last_map_addr; 808 return last_map_addr >> PAGE_SHIFT;
602} 809}
603 810
604#ifndef CONFIG_NUMA 811#ifndef CONFIG_NUMA
812void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn)
813{
814 unsigned long bootmap_size, bootmap;
815
816 bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
817 bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
818 PAGE_SIZE);
819 if (bootmap == -1L)
820 panic("Cannot find bootmem map of size %ld\n", bootmap_size);
821 /* don't touch min_low_pfn */
822 bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap >> PAGE_SHIFT,
823 0, end_pfn);
824 e820_register_active_regions(0, start_pfn, end_pfn);
825 free_bootmem_with_active_regions(0, end_pfn);
826 early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
827 reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
828}
829
605void __init paging_init(void) 830void __init paging_init(void)
606{ 831{
607 unsigned long max_zone_pfns[MAX_NR_ZONES]; 832 unsigned long max_zone_pfns[MAX_NR_ZONES];
@@ -609,9 +834,9 @@ void __init paging_init(void)
609 memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); 834 memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
610 max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN; 835 max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
611 max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN; 836 max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
612 max_zone_pfns[ZONE_NORMAL] = end_pfn; 837 max_zone_pfns[ZONE_NORMAL] = max_pfn;
613 838
614 memory_present(0, 0, end_pfn); 839 memory_present(0, 0, max_pfn);
615 sparse_init(); 840 sparse_init();
616 free_area_init_nodes(max_zone_pfns); 841 free_area_init_nodes(max_zone_pfns);
617} 842}
@@ -693,8 +918,8 @@ void __init mem_init(void)
693#else 918#else
694 totalram_pages = free_all_bootmem(); 919 totalram_pages = free_all_bootmem();
695#endif 920#endif
696 reservedpages = end_pfn - totalram_pages - 921 reservedpages = max_pfn - totalram_pages -
697 absent_pages_in_range(0, end_pfn); 922 absent_pages_in_range(0, max_pfn);
698 after_bootmem = 1; 923 after_bootmem = 1;
699 924
700 codesize = (unsigned long) &_etext - (unsigned long) &_text; 925 codesize = (unsigned long) &_etext - (unsigned long) &_text;
@@ -713,7 +938,7 @@ void __init mem_init(void)
713 printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " 938 printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
714 "%ldk reserved, %ldk data, %ldk init)\n", 939 "%ldk reserved, %ldk data, %ldk init)\n",
715 (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), 940 (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
716 end_pfn << (PAGE_SHIFT-10), 941 max_pfn << (PAGE_SHIFT-10),
717 codesize >> 10, 942 codesize >> 10,
718 reservedpages << (PAGE_SHIFT-10), 943 reservedpages << (PAGE_SHIFT-10),
719 datasize >> 10, 944 datasize >> 10,
@@ -766,6 +991,13 @@ EXPORT_SYMBOL_GPL(rodata_test_data);
766void mark_rodata_ro(void) 991void mark_rodata_ro(void)
767{ 992{
768 unsigned long start = PFN_ALIGN(_stext), end = PFN_ALIGN(__end_rodata); 993 unsigned long start = PFN_ALIGN(_stext), end = PFN_ALIGN(__end_rodata);
994 unsigned long rodata_start =
995 ((unsigned long)__start_rodata + PAGE_SIZE - 1) & PAGE_MASK;
996
997#ifdef CONFIG_DYNAMIC_FTRACE
998 /* Dynamic tracing modifies the kernel text section */
999 start = rodata_start;
1000#endif
769 1001
770 printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n", 1002 printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
771 (end - start) >> 10); 1003 (end - start) >> 10);
@@ -775,8 +1007,7 @@ void mark_rodata_ro(void)
775 * The rodata section (but not the kernel text!) should also be 1007 * The rodata section (but not the kernel text!) should also be
776 * not-executable. 1008 * not-executable.
777 */ 1009 */
778 start = ((unsigned long)__start_rodata + PAGE_SIZE - 1) & PAGE_MASK; 1010 set_memory_nx(rodata_start, (end - rodata_start) >> PAGE_SHIFT);
779 set_memory_nx(start, (end - start) >> PAGE_SHIFT);
780 1011
781 rodata_test(); 1012 rodata_test();
782 1013
@@ -798,24 +1029,26 @@ void free_initrd_mem(unsigned long start, unsigned long end)
798} 1029}
799#endif 1030#endif
800 1031
801void __init reserve_bootmem_generic(unsigned long phys, unsigned len) 1032int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
1033 int flags)
802{ 1034{
803#ifdef CONFIG_NUMA 1035#ifdef CONFIG_NUMA
804 int nid, next_nid; 1036 int nid, next_nid;
1037 int ret;
805#endif 1038#endif
806 unsigned long pfn = phys >> PAGE_SHIFT; 1039 unsigned long pfn = phys >> PAGE_SHIFT;
807 1040
808 if (pfn >= end_pfn) { 1041 if (pfn >= max_pfn) {
809 /* 1042 /*
810 * This can happen with kdump kernels when accessing 1043 * This can happen with kdump kernels when accessing
811 * firmware tables: 1044 * firmware tables:
812 */ 1045 */
813 if (pfn < max_pfn_mapped) 1046 if (pfn < max_pfn_mapped)
814 return; 1047 return -EFAULT;
815 1048
816 printk(KERN_ERR "reserve_bootmem: illegal reserve %lx %u\n", 1049 printk(KERN_ERR "reserve_bootmem: illegal reserve %lx %lu\n",
817 phys, len); 1050 phys, len);
818 return; 1051 return -EFAULT;
819 } 1052 }
820 1053
821 /* Should check here against the e820 map to avoid double free */ 1054 /* Should check here against the e820 map to avoid double free */
@@ -823,9 +1056,13 @@ void __init reserve_bootmem_generic(unsigned long phys, unsigned len)
823 nid = phys_to_nid(phys); 1056 nid = phys_to_nid(phys);
824 next_nid = phys_to_nid(phys + len - 1); 1057 next_nid = phys_to_nid(phys + len - 1);
825 if (nid == next_nid) 1058 if (nid == next_nid)
826 reserve_bootmem_node(NODE_DATA(nid), phys, len, BOOTMEM_DEFAULT); 1059 ret = reserve_bootmem_node(NODE_DATA(nid), phys, len, flags);
827 else 1060 else
828 reserve_bootmem(phys, len, BOOTMEM_DEFAULT); 1061 ret = reserve_bootmem(phys, len, flags);
1062
1063 if (ret != 0)
1064 return ret;
1065
829#else 1066#else
830 reserve_bootmem(phys, len, BOOTMEM_DEFAULT); 1067 reserve_bootmem(phys, len, BOOTMEM_DEFAULT);
831#endif 1068#endif
@@ -834,6 +1071,8 @@ void __init reserve_bootmem_generic(unsigned long phys, unsigned len)
834 dma_reserve += len / PAGE_SIZE; 1071 dma_reserve += len / PAGE_SIZE;
835 set_dma_reserve(dma_reserve); 1072 set_dma_reserve(dma_reserve);
836 } 1073 }
1074
1075 return 0;
837} 1076}
838 1077
839int kern_addr_valid(unsigned long addr) 1078int kern_addr_valid(unsigned long addr)
@@ -938,7 +1177,7 @@ vmemmap_populate(struct page *start_page, unsigned long size, int node)
938 pmd_t *pmd; 1177 pmd_t *pmd;
939 1178
940 for (; addr < end; addr = next) { 1179 for (; addr < end; addr = next) {
941 next = pmd_addr_end(addr, end); 1180 void *p = NULL;
942 1181
943 pgd = vmemmap_pgd_populate(addr, node); 1182 pgd = vmemmap_pgd_populate(addr, node);
944 if (!pgd) 1183 if (!pgd)
@@ -948,33 +1187,51 @@ vmemmap_populate(struct page *start_page, unsigned long size, int node)
948 if (!pud) 1187 if (!pud)
949 return -ENOMEM; 1188 return -ENOMEM;
950 1189
951 pmd = pmd_offset(pud, addr); 1190 if (!cpu_has_pse) {
952 if (pmd_none(*pmd)) { 1191 next = (addr + PAGE_SIZE) & PAGE_MASK;
953 pte_t entry; 1192 pmd = vmemmap_pmd_populate(pud, addr, node);
954 void *p; 1193
1194 if (!pmd)
1195 return -ENOMEM;
1196
1197 p = vmemmap_pte_populate(pmd, addr, node);
955 1198
956 p = vmemmap_alloc_block(PMD_SIZE, node);
957 if (!p) 1199 if (!p)
958 return -ENOMEM; 1200 return -ENOMEM;
959 1201
960 entry = pfn_pte(__pa(p) >> PAGE_SHIFT, 1202 addr_end = addr + PAGE_SIZE;
961 PAGE_KERNEL_LARGE); 1203 p_end = p + PAGE_SIZE;
962 set_pmd(pmd, __pmd(pte_val(entry)));
963
964 /* check to see if we have contiguous blocks */
965 if (p_end != p || node_start != node) {
966 if (p_start)
967 printk(KERN_DEBUG " [%lx-%lx] PMD -> [%p-%p] on node %d\n",
968 addr_start, addr_end-1, p_start, p_end-1, node_start);
969 addr_start = addr;
970 node_start = node;
971 p_start = p;
972 }
973 addr_end = addr + PMD_SIZE;
974 p_end = p + PMD_SIZE;
975 } else { 1204 } else {
976 vmemmap_verify((pte_t *)pmd, node, addr, next); 1205 next = pmd_addr_end(addr, end);
1206
1207 pmd = pmd_offset(pud, addr);
1208 if (pmd_none(*pmd)) {
1209 pte_t entry;
1210
1211 p = vmemmap_alloc_block(PMD_SIZE, node);
1212 if (!p)
1213 return -ENOMEM;
1214
1215 entry = pfn_pte(__pa(p) >> PAGE_SHIFT,
1216 PAGE_KERNEL_LARGE);
1217 set_pmd(pmd, __pmd(pte_val(entry)));
1218
1219 /* check to see if we have contiguous blocks */
1220 if (p_end != p || node_start != node) {
1221 if (p_start)
1222 printk(KERN_DEBUG " [%lx-%lx] PMD -> [%p-%p] on node %d\n",
1223 addr_start, addr_end-1, p_start, p_end-1, node_start);
1224 addr_start = addr;
1225 node_start = node;
1226 p_start = p;
1227 }
1228
1229 addr_end = addr + PMD_SIZE;
1230 p_end = p + PMD_SIZE;
1231 } else
1232 vmemmap_verify((pte_t *)pmd, node, addr, next);
977 } 1233 }
1234
978 } 1235 }
979 return 0; 1236 return 0;
980} 1237}
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 71bb3159031a..24c1d3c30186 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -12,6 +12,7 @@
12#include <linux/module.h> 12#include <linux/module.h>
13#include <linux/slab.h> 13#include <linux/slab.h>
14#include <linux/vmalloc.h> 14#include <linux/vmalloc.h>
15#include <linux/mmiotrace.h>
15 16
16#include <asm/cacheflush.h> 17#include <asm/cacheflush.h>
17#include <asm/e820.h> 18#include <asm/e820.h>
@@ -122,10 +123,13 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
122{ 123{
123 unsigned long pfn, offset, vaddr; 124 unsigned long pfn, offset, vaddr;
124 resource_size_t last_addr; 125 resource_size_t last_addr;
126 const resource_size_t unaligned_phys_addr = phys_addr;
127 const unsigned long unaligned_size = size;
125 struct vm_struct *area; 128 struct vm_struct *area;
126 unsigned long new_prot_val; 129 unsigned long new_prot_val;
127 pgprot_t prot; 130 pgprot_t prot;
128 int retval; 131 int retval;
132 void __iomem *ret_addr;
129 133
130 /* Don't allow wraparound or zero size */ 134 /* Don't allow wraparound or zero size */
131 last_addr = phys_addr + size - 1; 135 last_addr = phys_addr + size - 1;
@@ -142,7 +146,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
142 /* 146 /*
143 * Don't remap the low PCI/ISA area, it's always mapped.. 147 * Don't remap the low PCI/ISA area, it's always mapped..
144 */ 148 */
145 if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS) 149 if (is_ISA_range(phys_addr, last_addr))
146 return (__force void __iomem *)phys_to_virt(phys_addr); 150 return (__force void __iomem *)phys_to_virt(phys_addr);
147 151
148 /* 152 /*
@@ -233,7 +237,10 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
233 return NULL; 237 return NULL;
234 } 238 }
235 239
236 return (void __iomem *) (vaddr + offset); 240 ret_addr = (void __iomem *) (vaddr + offset);
241 mmiotrace_ioremap(unaligned_phys_addr, unaligned_size, ret_addr);
242
243 return ret_addr;
237} 244}
238 245
239/** 246/**
@@ -261,7 +268,7 @@ void __iomem *ioremap_nocache(resource_size_t phys_addr, unsigned long size)
261{ 268{
262 /* 269 /*
263 * Ideally, this should be: 270 * Ideally, this should be:
264 * pat_wc_enabled ? _PAGE_CACHE_UC : _PAGE_CACHE_UC_MINUS; 271 * pat_enabled ? _PAGE_CACHE_UC : _PAGE_CACHE_UC_MINUS;
265 * 272 *
266 * Till we fix all X drivers to use ioremap_wc(), we will use 273 * Till we fix all X drivers to use ioremap_wc(), we will use
267 * UC MINUS. 274 * UC MINUS.
@@ -285,7 +292,7 @@ EXPORT_SYMBOL(ioremap_nocache);
285 */ 292 */
286void __iomem *ioremap_wc(unsigned long phys_addr, unsigned long size) 293void __iomem *ioremap_wc(unsigned long phys_addr, unsigned long size)
287{ 294{
288 if (pat_wc_enabled) 295 if (pat_enabled)
289 return __ioremap_caller(phys_addr, size, _PAGE_CACHE_WC, 296 return __ioremap_caller(phys_addr, size, _PAGE_CACHE_WC,
290 __builtin_return_address(0)); 297 __builtin_return_address(0));
291 else 298 else
@@ -300,6 +307,29 @@ void __iomem *ioremap_cache(resource_size_t phys_addr, unsigned long size)
300} 307}
301EXPORT_SYMBOL(ioremap_cache); 308EXPORT_SYMBOL(ioremap_cache);
302 309
310static void __iomem *ioremap_default(resource_size_t phys_addr,
311 unsigned long size)
312{
313 unsigned long flags;
314 void *ret;
315 int err;
316
317 /*
318 * - WB for WB-able memory and no other conflicting mappings
319 * - UC_MINUS for non-WB-able memory with no other conflicting mappings
320 * - Inherit from confliting mappings otherwise
321 */
322 err = reserve_memtype(phys_addr, phys_addr + size, -1, &flags);
323 if (err < 0)
324 return NULL;
325
326 ret = (void *) __ioremap_caller(phys_addr, size, flags,
327 __builtin_return_address(0));
328
329 free_memtype(phys_addr, phys_addr + size);
330 return (void __iomem *)ret;
331}
332
303/** 333/**
304 * iounmap - Free a IO remapping 334 * iounmap - Free a IO remapping
305 * @addr: virtual address from ioremap_* 335 * @addr: virtual address from ioremap_*
@@ -318,13 +348,15 @@ void iounmap(volatile void __iomem *addr)
318 * vm_area and by simply returning an address into the kernel mapping 348 * vm_area and by simply returning an address into the kernel mapping
319 * of ISA space. So handle that here. 349 * of ISA space. So handle that here.
320 */ 350 */
321 if (addr >= phys_to_virt(ISA_START_ADDRESS) && 351 if ((void __force *)addr >= phys_to_virt(ISA_START_ADDRESS) &&
322 addr < phys_to_virt(ISA_END_ADDRESS)) 352 (void __force *)addr < phys_to_virt(ISA_END_ADDRESS))
323 return; 353 return;
324 354
325 addr = (volatile void __iomem *) 355 addr = (volatile void __iomem *)
326 (PAGE_MASK & (unsigned long __force)addr); 356 (PAGE_MASK & (unsigned long __force)addr);
327 357
358 mmiotrace_iounmap(addr);
359
328 /* Use the vm area unlocked, assuming the caller 360 /* Use the vm area unlocked, assuming the caller
329 ensures there isn't another iounmap for the same address 361 ensures there isn't another iounmap for the same address
330 in parallel. Reuse of the virtual address is prevented by 362 in parallel. Reuse of the virtual address is prevented by
@@ -332,7 +364,7 @@ void iounmap(volatile void __iomem *addr)
332 cpa takes care of the direct mappings. */ 364 cpa takes care of the direct mappings. */
333 read_lock(&vmlist_lock); 365 read_lock(&vmlist_lock);
334 for (p = vmlist; p; p = p->next) { 366 for (p = vmlist; p; p = p->next) {
335 if (p->addr == addr) 367 if (p->addr == (void __force *)addr)
336 break; 368 break;
337 } 369 }
338 read_unlock(&vmlist_lock); 370 read_unlock(&vmlist_lock);
@@ -346,7 +378,7 @@ void iounmap(volatile void __iomem *addr)
346 free_memtype(p->phys_addr, p->phys_addr + get_vm_area_size(p)); 378 free_memtype(p->phys_addr, p->phys_addr + get_vm_area_size(p));
347 379
348 /* Finally remove it */ 380 /* Finally remove it */
349 o = remove_vm_area((void *)addr); 381 o = remove_vm_area((void __force *)addr);
350 BUG_ON(p != o || o == NULL); 382 BUG_ON(p != o || o == NULL);
351 kfree(p); 383 kfree(p);
352} 384}
@@ -365,7 +397,7 @@ void *xlate_dev_mem_ptr(unsigned long phys)
365 if (page_is_ram(start >> PAGE_SHIFT)) 397 if (page_is_ram(start >> PAGE_SHIFT))
366 return __va(phys); 398 return __va(phys);
367 399
368 addr = (void *)ioremap(start, PAGE_SIZE); 400 addr = (void __force *)ioremap_default(start, PAGE_SIZE);
369 if (addr) 401 if (addr)
370 addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK)); 402 addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));
371 403
@@ -381,8 +413,6 @@ void unxlate_dev_mem_ptr(unsigned long phys, void *addr)
381 return; 413 return;
382} 414}
383 415
384#ifdef CONFIG_X86_32
385
386int __initdata early_ioremap_debug; 416int __initdata early_ioremap_debug;
387 417
388static int __init early_ioremap_debug_setup(char *str) 418static int __init early_ioremap_debug_setup(char *str)
@@ -394,8 +424,7 @@ static int __init early_ioremap_debug_setup(char *str)
394early_param("early_ioremap_debug", early_ioremap_debug_setup); 424early_param("early_ioremap_debug", early_ioremap_debug_setup);
395 425
396static __initdata int after_paging_init; 426static __initdata int after_paging_init;
397static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] 427static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
398 __section(.bss.page_aligned);
399 428
400static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) 429static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
401{ 430{
@@ -484,10 +513,11 @@ static void __init __early_set_fixmap(enum fixed_addresses idx,
484 return; 513 return;
485 } 514 }
486 pte = early_ioremap_pte(addr); 515 pte = early_ioremap_pte(addr);
516
487 if (pgprot_val(flags)) 517 if (pgprot_val(flags))
488 set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags)); 518 set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags));
489 else 519 else
490 pte_clear(NULL, addr, pte); 520 pte_clear(&init_mm, addr, pte);
491 __flush_tlb_one(addr); 521 __flush_tlb_one(addr);
492} 522}
493 523
@@ -593,10 +623,11 @@ void __init early_iounmap(void *addr, unsigned long size)
593 unsigned long offset; 623 unsigned long offset;
594 unsigned int nrpages; 624 unsigned int nrpages;
595 enum fixed_addresses idx; 625 enum fixed_addresses idx;
596 unsigned int nesting; 626 int nesting;
597 627
598 nesting = --early_ioremap_nested; 628 nesting = --early_ioremap_nested;
599 WARN_ON(nesting < 0); 629 if (WARN_ON(nesting < 0))
630 return;
600 631
601 if (early_ioremap_debug) { 632 if (early_ioremap_debug) {
602 printk(KERN_INFO "early_iounmap(%p, %08lx) [%d]\n", addr, 633 printk(KERN_INFO "early_iounmap(%p, %08lx) [%d]\n", addr,
@@ -624,5 +655,3 @@ void __this_fixmap_does_not_exist(void)
624{ 655{
625 WARN_ON(1); 656 WARN_ON(1);
626} 657}
627
628#endif /* CONFIG_X86_32 */
diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 1f476e477844..41f1b5c00a1d 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -22,6 +22,7 @@
22#include <asm/numa.h> 22#include <asm/numa.h>
23#include <asm/mpspec.h> 23#include <asm/mpspec.h>
24#include <asm/apic.h> 24#include <asm/apic.h>
25#include <asm/k8.h>
25 26
26static __init int find_northbridge(void) 27static __init int find_northbridge(void)
27{ 28{
@@ -56,34 +57,33 @@ static __init void early_get_boot_cpu_id(void)
56 /* 57 /*
57 * Find possible boot-time SMP configuration: 58 * Find possible boot-time SMP configuration:
58 */ 59 */
60#ifdef CONFIG_X86_MPPARSE
59 early_find_smp_config(); 61 early_find_smp_config();
62#endif
60#ifdef CONFIG_ACPI 63#ifdef CONFIG_ACPI
61 /* 64 /*
62 * Read APIC information from ACPI tables. 65 * Read APIC information from ACPI tables.
63 */ 66 */
64 early_acpi_boot_init(); 67 early_acpi_boot_init();
65#endif 68#endif
69#ifdef CONFIG_X86_MPPARSE
66 /* 70 /*
67 * get boot-time SMP configuration: 71 * get boot-time SMP configuration:
68 */ 72 */
69 if (smp_found_config) 73 if (smp_found_config)
70 early_get_smp_config(); 74 early_get_smp_config();
75#endif
71 early_init_lapic_mapping(); 76 early_init_lapic_mapping();
72} 77}
73 78
74int __init k8_scan_nodes(unsigned long start, unsigned long end) 79int __init k8_scan_nodes(unsigned long start, unsigned long end)
75{ 80{
81 unsigned numnodes, cores, bits, apicid_base;
76 unsigned long prevbase; 82 unsigned long prevbase;
77 struct bootnode nodes[8]; 83 struct bootnode nodes[8];
78 int nodeid, i, nb;
79 unsigned char nodeids[8]; 84 unsigned char nodeids[8];
80 int found = 0; 85 int i, j, nb, found = 0;
81 u32 reg; 86 u32 nodeid, reg;
82 unsigned numnodes;
83 unsigned cores;
84 unsigned bits;
85 int j;
86 unsigned apicid_base;
87 87
88 if (!early_pci_allowed()) 88 if (!early_pci_allowed())
89 return -1; 89 return -1;
@@ -105,7 +105,6 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
105 prevbase = 0; 105 prevbase = 0;
106 for (i = 0; i < 8; i++) { 106 for (i = 0; i < 8; i++) {
107 unsigned long base, limit; 107 unsigned long base, limit;
108 u32 nodeid;
109 108
110 base = read_pci_config(0, nb, 1, 0x40 + i*8); 109 base = read_pci_config(0, nb, 1, 0x40 + i*8);
111 limit = read_pci_config(0, nb, 1, 0x44 + i*8); 110 limit = read_pci_config(0, nb, 1, 0x44 + i*8);
@@ -144,8 +143,8 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
144 limit |= (1<<24)-1; 143 limit |= (1<<24)-1;
145 limit++; 144 limit++;
146 145
147 if (limit > end_pfn << PAGE_SHIFT) 146 if (limit > max_pfn << PAGE_SHIFT)
148 limit = end_pfn << PAGE_SHIFT; 147 limit = max_pfn << PAGE_SHIFT;
149 if (limit <= base) 148 if (limit <= base)
150 continue; 149 continue;
151 150
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
new file mode 100644
index 000000000000..93d82038af4b
--- /dev/null
+++ b/arch/x86/mm/kmmio.c
@@ -0,0 +1,510 @@
1/* Support for MMIO probes.
2 * Benfit many code from kprobes
3 * (C) 2002 Louis Zhuang <louis.zhuang@intel.com>.
4 * 2007 Alexander Eichner
5 * 2008 Pekka Paalanen <pq@iki.fi>
6 */
7
8#include <linux/list.h>
9#include <linux/rculist.h>
10#include <linux/spinlock.h>
11#include <linux/hash.h>
12#include <linux/init.h>
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/uaccess.h>
16#include <linux/ptrace.h>
17#include <linux/preempt.h>
18#include <linux/percpu.h>
19#include <linux/kdebug.h>
20#include <linux/mutex.h>
21#include <linux/io.h>
22#include <asm/cacheflush.h>
23#include <asm/tlbflush.h>
24#include <linux/errno.h>
25#include <asm/debugreg.h>
26#include <linux/mmiotrace.h>
27
28#define KMMIO_PAGE_HASH_BITS 4
29#define KMMIO_PAGE_TABLE_SIZE (1 << KMMIO_PAGE_HASH_BITS)
30
31struct kmmio_fault_page {
32 struct list_head list;
33 struct kmmio_fault_page *release_next;
34 unsigned long page; /* location of the fault page */
35
36 /*
37 * Number of times this page has been registered as a part
38 * of a probe. If zero, page is disarmed and this may be freed.
39 * Used only by writers (RCU).
40 */
41 int count;
42};
43
44struct kmmio_delayed_release {
45 struct rcu_head rcu;
46 struct kmmio_fault_page *release_list;
47};
48
49struct kmmio_context {
50 struct kmmio_fault_page *fpage;
51 struct kmmio_probe *probe;
52 unsigned long saved_flags;
53 unsigned long addr;
54 int active;
55};
56
57static DEFINE_SPINLOCK(kmmio_lock);
58
59/* Protected by kmmio_lock */
60unsigned int kmmio_count;
61
62/* Read-protected by RCU, write-protected by kmmio_lock. */
63static struct list_head kmmio_page_table[KMMIO_PAGE_TABLE_SIZE];
64static LIST_HEAD(kmmio_probes);
65
66static struct list_head *kmmio_page_list(unsigned long page)
67{
68 return &kmmio_page_table[hash_long(page, KMMIO_PAGE_HASH_BITS)];
69}
70
71/* Accessed per-cpu */
72static DEFINE_PER_CPU(struct kmmio_context, kmmio_ctx);
73
74/*
75 * this is basically a dynamic stabbing problem:
76 * Could use the existing prio tree code or
77 * Possible better implementations:
78 * The Interval Skip List: A Data Structure for Finding All Intervals That
79 * Overlap a Point (might be simple)
80 * Space Efficient Dynamic Stabbing with Fast Queries - Mikkel Thorup
81 */
82/* Get the kmmio at this addr (if any). You must be holding RCU read lock. */
83static struct kmmio_probe *get_kmmio_probe(unsigned long addr)
84{
85 struct kmmio_probe *p;
86 list_for_each_entry_rcu(p, &kmmio_probes, list) {
87 if (addr >= p->addr && addr <= (p->addr + p->len))
88 return p;
89 }
90 return NULL;
91}
92
93/* You must be holding RCU read lock. */
94static struct kmmio_fault_page *get_kmmio_fault_page(unsigned long page)
95{
96 struct list_head *head;
97 struct kmmio_fault_page *p;
98
99 page &= PAGE_MASK;
100 head = kmmio_page_list(page);
101 list_for_each_entry_rcu(p, head, list) {
102 if (p->page == page)
103 return p;
104 }
105 return NULL;
106}
107
108static void set_page_present(unsigned long addr, bool present,
109 unsigned int *pglevel)
110{
111 pteval_t pteval;
112 pmdval_t pmdval;
113 unsigned int level;
114 pmd_t *pmd;
115 pte_t *pte = lookup_address(addr, &level);
116
117 if (!pte) {
118 pr_err("kmmio: no pte for page 0x%08lx\n", addr);
119 return;
120 }
121
122 if (pglevel)
123 *pglevel = level;
124
125 switch (level) {
126 case PG_LEVEL_2M:
127 pmd = (pmd_t *)pte;
128 pmdval = pmd_val(*pmd) & ~_PAGE_PRESENT;
129 if (present)
130 pmdval |= _PAGE_PRESENT;
131 set_pmd(pmd, __pmd(pmdval));
132 break;
133
134 case PG_LEVEL_4K:
135 pteval = pte_val(*pte) & ~_PAGE_PRESENT;
136 if (present)
137 pteval |= _PAGE_PRESENT;
138 set_pte_atomic(pte, __pte(pteval));
139 break;
140
141 default:
142 pr_err("kmmio: unexpected page level 0x%x.\n", level);
143 return;
144 }
145
146 __flush_tlb_one(addr);
147}
148
149/** Mark the given page as not present. Access to it will trigger a fault. */
150static void arm_kmmio_fault_page(unsigned long page, unsigned int *pglevel)
151{
152 set_page_present(page & PAGE_MASK, false, pglevel);
153}
154
155/** Mark the given page as present. */
156static void disarm_kmmio_fault_page(unsigned long page, unsigned int *pglevel)
157{
158 set_page_present(page & PAGE_MASK, true, pglevel);
159}
160
161/*
162 * This is being called from do_page_fault().
163 *
164 * We may be in an interrupt or a critical section. Also prefecthing may
165 * trigger a page fault. We may be in the middle of process switch.
166 * We cannot take any locks, because we could be executing especially
167 * within a kmmio critical section.
168 *
169 * Local interrupts are disabled, so preemption cannot happen.
170 * Do not enable interrupts, do not sleep, and watch out for other CPUs.
171 */
172/*
173 * Interrupts are disabled on entry as trap3 is an interrupt gate
174 * and they remain disabled thorough out this function.
175 */
176int kmmio_handler(struct pt_regs *regs, unsigned long addr)
177{
178 struct kmmio_context *ctx;
179 struct kmmio_fault_page *faultpage;
180 int ret = 0; /* default to fault not handled */
181
182 /*
183 * Preemption is now disabled to prevent process switch during
184 * single stepping. We can only handle one active kmmio trace
185 * per cpu, so ensure that we finish it before something else
186 * gets to run. We also hold the RCU read lock over single
187 * stepping to avoid looking up the probe and kmmio_fault_page
188 * again.
189 */
190 preempt_disable();
191 rcu_read_lock();
192
193 faultpage = get_kmmio_fault_page(addr);
194 if (!faultpage) {
195 /*
196 * Either this page fault is not caused by kmmio, or
197 * another CPU just pulled the kmmio probe from under
198 * our feet. The latter case should not be possible.
199 */
200 goto no_kmmio;
201 }
202
203 ctx = &get_cpu_var(kmmio_ctx);
204 if (ctx->active) {
205 disarm_kmmio_fault_page(faultpage->page, NULL);
206 if (addr == ctx->addr) {
207 /*
208 * On SMP we sometimes get recursive probe hits on the
209 * same address. Context is already saved, fall out.
210 */
211 pr_debug("kmmio: duplicate probe hit on CPU %d, for "
212 "address 0x%08lx.\n",
213 smp_processor_id(), addr);
214 ret = 1;
215 goto no_kmmio_ctx;
216 }
217 /*
218 * Prevent overwriting already in-flight context.
219 * This should not happen, let's hope disarming at least
220 * prevents a panic.
221 */
222 pr_emerg("kmmio: recursive probe hit on CPU %d, "
223 "for address 0x%08lx. Ignoring.\n",
224 smp_processor_id(), addr);
225 pr_emerg("kmmio: previous hit was at 0x%08lx.\n",
226 ctx->addr);
227 goto no_kmmio_ctx;
228 }
229 ctx->active++;
230
231 ctx->fpage = faultpage;
232 ctx->probe = get_kmmio_probe(addr);
233 ctx->saved_flags = (regs->flags & (X86_EFLAGS_TF | X86_EFLAGS_IF));
234 ctx->addr = addr;
235
236 if (ctx->probe && ctx->probe->pre_handler)
237 ctx->probe->pre_handler(ctx->probe, regs, addr);
238
239 /*
240 * Enable single-stepping and disable interrupts for the faulting
241 * context. Local interrupts must not get enabled during stepping.
242 */
243 regs->flags |= X86_EFLAGS_TF;
244 regs->flags &= ~X86_EFLAGS_IF;
245
246 /* Now we set present bit in PTE and single step. */
247 disarm_kmmio_fault_page(ctx->fpage->page, NULL);
248
249 /*
250 * If another cpu accesses the same page while we are stepping,
251 * the access will not be caught. It will simply succeed and the
252 * only downside is we lose the event. If this becomes a problem,
253 * the user should drop to single cpu before tracing.
254 */
255
256 put_cpu_var(kmmio_ctx);
257 return 1; /* fault handled */
258
259no_kmmio_ctx:
260 put_cpu_var(kmmio_ctx);
261no_kmmio:
262 rcu_read_unlock();
263 preempt_enable_no_resched();
264 return ret;
265}
266
267/*
268 * Interrupts are disabled on entry as trap1 is an interrupt gate
269 * and they remain disabled thorough out this function.
270 * This must always get called as the pair to kmmio_handler().
271 */
272static int post_kmmio_handler(unsigned long condition, struct pt_regs *regs)
273{
274 int ret = 0;
275 struct kmmio_context *ctx = &get_cpu_var(kmmio_ctx);
276
277 if (!ctx->active) {
278 pr_debug("kmmio: spurious debug trap on CPU %d.\n",
279 smp_processor_id());
280 goto out;
281 }
282
283 if (ctx->probe && ctx->probe->post_handler)
284 ctx->probe->post_handler(ctx->probe, condition, regs);
285
286 arm_kmmio_fault_page(ctx->fpage->page, NULL);
287
288 regs->flags &= ~X86_EFLAGS_TF;
289 regs->flags |= ctx->saved_flags;
290
291 /* These were acquired in kmmio_handler(). */
292 ctx->active--;
293 BUG_ON(ctx->active);
294 rcu_read_unlock();
295 preempt_enable_no_resched();
296
297 /*
298 * if somebody else is singlestepping across a probe point, flags
299 * will have TF set, in which case, continue the remaining processing
300 * of do_debug, as if this is not a probe hit.
301 */
302 if (!(regs->flags & X86_EFLAGS_TF))
303 ret = 1;
304out:
305 put_cpu_var(kmmio_ctx);
306 return ret;
307}
308
309/* You must be holding kmmio_lock. */
310static int add_kmmio_fault_page(unsigned long page)
311{
312 struct kmmio_fault_page *f;
313
314 page &= PAGE_MASK;
315 f = get_kmmio_fault_page(page);
316 if (f) {
317 if (!f->count)
318 arm_kmmio_fault_page(f->page, NULL);
319 f->count++;
320 return 0;
321 }
322
323 f = kmalloc(sizeof(*f), GFP_ATOMIC);
324 if (!f)
325 return -1;
326
327 f->count = 1;
328 f->page = page;
329 list_add_rcu(&f->list, kmmio_page_list(f->page));
330
331 arm_kmmio_fault_page(f->page, NULL);
332
333 return 0;
334}
335
336/* You must be holding kmmio_lock. */
337static void release_kmmio_fault_page(unsigned long page,
338 struct kmmio_fault_page **release_list)
339{
340 struct kmmio_fault_page *f;
341
342 page &= PAGE_MASK;
343 f = get_kmmio_fault_page(page);
344 if (!f)
345 return;
346
347 f->count--;
348 BUG_ON(f->count < 0);
349 if (!f->count) {
350 disarm_kmmio_fault_page(f->page, NULL);
351 f->release_next = *release_list;
352 *release_list = f;
353 }
354}
355
356/*
357 * With page-unaligned ioremaps, one or two armed pages may contain
358 * addresses from outside the intended mapping. Events for these addresses
359 * are currently silently dropped. The events may result only from programming
360 * mistakes by accessing addresses before the beginning or past the end of a
361 * mapping.
362 */
363int register_kmmio_probe(struct kmmio_probe *p)
364{
365 unsigned long flags;
366 int ret = 0;
367 unsigned long size = 0;
368 const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK);
369
370 spin_lock_irqsave(&kmmio_lock, flags);
371 if (get_kmmio_probe(p->addr)) {
372 ret = -EEXIST;
373 goto out;
374 }
375 kmmio_count++;
376 list_add_rcu(&p->list, &kmmio_probes);
377 while (size < size_lim) {
378 if (add_kmmio_fault_page(p->addr + size))
379 pr_err("kmmio: Unable to set page fault.\n");
380 size += PAGE_SIZE;
381 }
382out:
383 spin_unlock_irqrestore(&kmmio_lock, flags);
384 /*
385 * XXX: What should I do here?
386 * Here was a call to global_flush_tlb(), but it does not exist
387 * anymore. It seems it's not needed after all.
388 */
389 return ret;
390}
391EXPORT_SYMBOL(register_kmmio_probe);
392
393static void rcu_free_kmmio_fault_pages(struct rcu_head *head)
394{
395 struct kmmio_delayed_release *dr = container_of(
396 head,
397 struct kmmio_delayed_release,
398 rcu);
399 struct kmmio_fault_page *p = dr->release_list;
400 while (p) {
401 struct kmmio_fault_page *next = p->release_next;
402 BUG_ON(p->count);
403 kfree(p);
404 p = next;
405 }
406 kfree(dr);
407}
408
409static void remove_kmmio_fault_pages(struct rcu_head *head)
410{
411 struct kmmio_delayed_release *dr = container_of(
412 head,
413 struct kmmio_delayed_release,
414 rcu);
415 struct kmmio_fault_page *p = dr->release_list;
416 struct kmmio_fault_page **prevp = &dr->release_list;
417 unsigned long flags;
418 spin_lock_irqsave(&kmmio_lock, flags);
419 while (p) {
420 if (!p->count)
421 list_del_rcu(&p->list);
422 else
423 *prevp = p->release_next;
424 prevp = &p->release_next;
425 p = p->release_next;
426 }
427 spin_unlock_irqrestore(&kmmio_lock, flags);
428 /* This is the real RCU destroy call. */
429 call_rcu(&dr->rcu, rcu_free_kmmio_fault_pages);
430}
431
432/*
433 * Remove a kmmio probe. You have to synchronize_rcu() before you can be
434 * sure that the callbacks will not be called anymore. Only after that
435 * you may actually release your struct kmmio_probe.
436 *
437 * Unregistering a kmmio fault page has three steps:
438 * 1. release_kmmio_fault_page()
439 * Disarm the page, wait a grace period to let all faults finish.
440 * 2. remove_kmmio_fault_pages()
441 * Remove the pages from kmmio_page_table.
442 * 3. rcu_free_kmmio_fault_pages()
443 * Actally free the kmmio_fault_page structs as with RCU.
444 */
445void unregister_kmmio_probe(struct kmmio_probe *p)
446{
447 unsigned long flags;
448 unsigned long size = 0;
449 const unsigned long size_lim = p->len + (p->addr & ~PAGE_MASK);
450 struct kmmio_fault_page *release_list = NULL;
451 struct kmmio_delayed_release *drelease;
452
453 spin_lock_irqsave(&kmmio_lock, flags);
454 while (size < size_lim) {
455 release_kmmio_fault_page(p->addr + size, &release_list);
456 size += PAGE_SIZE;
457 }
458 list_del_rcu(&p->list);
459 kmmio_count--;
460 spin_unlock_irqrestore(&kmmio_lock, flags);
461
462 drelease = kmalloc(sizeof(*drelease), GFP_ATOMIC);
463 if (!drelease) {
464 pr_crit("kmmio: leaking kmmio_fault_page objects.\n");
465 return;
466 }
467 drelease->release_list = release_list;
468
469 /*
470 * This is not really RCU here. We have just disarmed a set of
471 * pages so that they cannot trigger page faults anymore. However,
472 * we cannot remove the pages from kmmio_page_table,
473 * because a probe hit might be in flight on another CPU. The
474 * pages are collected into a list, and they will be removed from
475 * kmmio_page_table when it is certain that no probe hit related to
476 * these pages can be in flight. RCU grace period sounds like a
477 * good choice.
478 *
479 * If we removed the pages too early, kmmio page fault handler might
480 * not find the respective kmmio_fault_page and determine it's not
481 * a kmmio fault, when it actually is. This would lead to madness.
482 */
483 call_rcu(&drelease->rcu, remove_kmmio_fault_pages);
484}
485EXPORT_SYMBOL(unregister_kmmio_probe);
486
487static int kmmio_die_notifier(struct notifier_block *nb, unsigned long val,
488 void *args)
489{
490 struct die_args *arg = args;
491
492 if (val == DIE_DEBUG && (arg->err & DR_STEP))
493 if (post_kmmio_handler(arg->err, arg->regs) == 1)
494 return NOTIFY_STOP;
495
496 return NOTIFY_DONE;
497}
498
499static struct notifier_block nb_die = {
500 .notifier_call = kmmio_die_notifier
501};
502
503static int __init init_kmmio(void)
504{
505 int i;
506 for (i = 0; i < KMMIO_PAGE_TABLE_SIZE; i++)
507 INIT_LIST_HEAD(&kmmio_page_table[i]);
508 return register_die_notifier(&nb_die);
509}
510fs_initcall(init_kmmio); /* should be before device_initcall() */
diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
new file mode 100644
index 000000000000..e7397e108beb
--- /dev/null
+++ b/arch/x86/mm/mmio-mod.c
@@ -0,0 +1,515 @@
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15 *
16 * Copyright (C) IBM Corporation, 2005
17 * Jeff Muizelaar, 2006, 2007
18 * Pekka Paalanen, 2008 <pq@iki.fi>
19 *
20 * Derived from the read-mod example from relay-examples by Tom Zanussi.
21 */
22#define DEBUG 1
23
24#include <linux/module.h>
25#include <linux/debugfs.h>
26#include <linux/uaccess.h>
27#include <linux/io.h>
28#include <linux/version.h>
29#include <linux/kallsyms.h>
30#include <asm/pgtable.h>
31#include <linux/mmiotrace.h>
32#include <asm/e820.h> /* for ISA_START_ADDRESS */
33#include <asm/atomic.h>
34#include <linux/percpu.h>
35#include <linux/cpu.h>
36
37#include "pf_in.h"
38
39#define NAME "mmiotrace: "
40
41struct trap_reason {
42 unsigned long addr;
43 unsigned long ip;
44 enum reason_type type;
45 int active_traces;
46};
47
48struct remap_trace {
49 struct list_head list;
50 struct kmmio_probe probe;
51 resource_size_t phys;
52 unsigned long id;
53};
54
55/* Accessed per-cpu. */
56static DEFINE_PER_CPU(struct trap_reason, pf_reason);
57static DEFINE_PER_CPU(struct mmiotrace_rw, cpu_trace);
58
59#if 0 /* XXX: no way gather this info anymore */
60/* Access to this is not per-cpu. */
61static DEFINE_PER_CPU(atomic_t, dropped);
62#endif
63
64static struct dentry *marker_file;
65
66static DEFINE_MUTEX(mmiotrace_mutex);
67static DEFINE_SPINLOCK(trace_lock);
68static atomic_t mmiotrace_enabled;
69static LIST_HEAD(trace_list); /* struct remap_trace */
70
71/*
72 * Locking in this file:
73 * - mmiotrace_mutex enforces enable/disable_mmiotrace() critical sections.
74 * - mmiotrace_enabled may be modified only when holding mmiotrace_mutex
75 * and trace_lock.
76 * - Routines depending on is_enabled() must take trace_lock.
77 * - trace_list users must hold trace_lock.
78 * - is_enabled() guarantees that mmio_trace_record is allowed.
79 * - pre/post callbacks assume the effect of is_enabled() being true.
80 */
81
82/* module parameters */
83static unsigned long filter_offset;
84static int nommiotrace;
85static int trace_pc;
86
87module_param(filter_offset, ulong, 0);
88module_param(nommiotrace, bool, 0);
89module_param(trace_pc, bool, 0);
90
91MODULE_PARM_DESC(filter_offset, "Start address of traced mappings.");
92MODULE_PARM_DESC(nommiotrace, "Disable actual MMIO tracing.");
93MODULE_PARM_DESC(trace_pc, "Record address of faulting instructions.");
94
95static bool is_enabled(void)
96{
97 return atomic_read(&mmiotrace_enabled);
98}
99
100#if 0 /* XXX: needs rewrite */
101/*
102 * Write callback for the debugfs entry:
103 * Read a marker and write it to the mmio trace log
104 */
105static ssize_t write_marker(struct file *file, const char __user *buffer,
106 size_t count, loff_t *ppos)
107{
108 char *event = NULL;
109 struct mm_io_header *headp;
110 ssize_t len = (count > 65535) ? 65535 : count;
111
112 event = kzalloc(sizeof(*headp) + len, GFP_KERNEL);
113 if (!event)
114 return -ENOMEM;
115
116 headp = (struct mm_io_header *)event;
117 headp->type = MMIO_MAGIC | (MMIO_MARKER << MMIO_OPCODE_SHIFT);
118 headp->data_len = len;
119
120 if (copy_from_user(event + sizeof(*headp), buffer, len)) {
121 kfree(event);
122 return -EFAULT;
123 }
124
125 spin_lock_irq(&trace_lock);
126#if 0 /* XXX: convert this to use tracing */
127 if (is_enabled())
128 relay_write(chan, event, sizeof(*headp) + len);
129 else
130#endif
131 len = -EINVAL;
132 spin_unlock_irq(&trace_lock);
133 kfree(event);
134 return len;
135}
136#endif
137
138static void print_pte(unsigned long address)
139{
140 unsigned int level;
141 pte_t *pte = lookup_address(address, &level);
142
143 if (!pte) {
144 pr_err(NAME "Error in %s: no pte for page 0x%08lx\n",
145 __func__, address);
146 return;
147 }
148
149 if (level == PG_LEVEL_2M) {
150 pr_emerg(NAME "4MB pages are not currently supported: "
151 "0x%08lx\n", address);
152 BUG();
153 }
154 pr_info(NAME "pte for 0x%lx: 0x%llx 0x%llx\n", address,
155 (unsigned long long)pte_val(*pte),
156 (unsigned long long)pte_val(*pte) & _PAGE_PRESENT);
157}
158
159/*
160 * For some reason the pre/post pairs have been called in an
161 * unmatched order. Report and die.
162 */
163static void die_kmmio_nesting_error(struct pt_regs *regs, unsigned long addr)
164{
165 const struct trap_reason *my_reason = &get_cpu_var(pf_reason);
166 pr_emerg(NAME "unexpected fault for address: 0x%08lx, "
167 "last fault for address: 0x%08lx\n",
168 addr, my_reason->addr);
169 print_pte(addr);
170 print_symbol(KERN_EMERG "faulting IP is at %s\n", regs->ip);
171 print_symbol(KERN_EMERG "last faulting IP was at %s\n", my_reason->ip);
172#ifdef __i386__
173 pr_emerg("eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
174 regs->ax, regs->bx, regs->cx, regs->dx);
175 pr_emerg("esi: %08lx edi: %08lx ebp: %08lx esp: %08lx\n",
176 regs->si, regs->di, regs->bp, regs->sp);
177#else
178 pr_emerg("rax: %016lx rcx: %016lx rdx: %016lx\n",
179 regs->ax, regs->cx, regs->dx);
180 pr_emerg("rsi: %016lx rdi: %016lx rbp: %016lx rsp: %016lx\n",
181 regs->si, regs->di, regs->bp, regs->sp);
182#endif
183 put_cpu_var(pf_reason);
184 BUG();
185}
186
187static void pre(struct kmmio_probe *p, struct pt_regs *regs,
188 unsigned long addr)
189{
190 struct trap_reason *my_reason = &get_cpu_var(pf_reason);
191 struct mmiotrace_rw *my_trace = &get_cpu_var(cpu_trace);
192 const unsigned long instptr = instruction_pointer(regs);
193 const enum reason_type type = get_ins_type(instptr);
194 struct remap_trace *trace = p->private;
195
196 /* it doesn't make sense to have more than one active trace per cpu */
197 if (my_reason->active_traces)
198 die_kmmio_nesting_error(regs, addr);
199 else
200 my_reason->active_traces++;
201
202 my_reason->type = type;
203 my_reason->addr = addr;
204 my_reason->ip = instptr;
205
206 my_trace->phys = addr - trace->probe.addr + trace->phys;
207 my_trace->map_id = trace->id;
208
209 /*
210 * Only record the program counter when requested.
211 * It may taint clean-room reverse engineering.
212 */
213 if (trace_pc)
214 my_trace->pc = instptr;
215 else
216 my_trace->pc = 0;
217
218 /*
219 * XXX: the timestamp recorded will be *after* the tracing has been
220 * done, not at the time we hit the instruction. SMP implications
221 * on event ordering?
222 */
223
224 switch (type) {
225 case REG_READ:
226 my_trace->opcode = MMIO_READ;
227 my_trace->width = get_ins_mem_width(instptr);
228 break;
229 case REG_WRITE:
230 my_trace->opcode = MMIO_WRITE;
231 my_trace->width = get_ins_mem_width(instptr);
232 my_trace->value = get_ins_reg_val(instptr, regs);
233 break;
234 case IMM_WRITE:
235 my_trace->opcode = MMIO_WRITE;
236 my_trace->width = get_ins_mem_width(instptr);
237 my_trace->value = get_ins_imm_val(instptr);
238 break;
239 default:
240 {
241 unsigned char *ip = (unsigned char *)instptr;
242 my_trace->opcode = MMIO_UNKNOWN_OP;
243 my_trace->width = 0;
244 my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
245 *(ip + 2);
246 }
247 }
248 put_cpu_var(cpu_trace);
249 put_cpu_var(pf_reason);
250}
251
252static void post(struct kmmio_probe *p, unsigned long condition,
253 struct pt_regs *regs)
254{
255 struct trap_reason *my_reason = &get_cpu_var(pf_reason);
256 struct mmiotrace_rw *my_trace = &get_cpu_var(cpu_trace);
257
258 /* this should always return the active_trace count to 0 */
259 my_reason->active_traces--;
260 if (my_reason->active_traces) {
261 pr_emerg(NAME "unexpected post handler");
262 BUG();
263 }
264
265 switch (my_reason->type) {
266 case REG_READ:
267 my_trace->value = get_ins_reg_val(my_reason->ip, regs);
268 break;
269 default:
270 break;
271 }
272
273 mmio_trace_rw(my_trace);
274 put_cpu_var(cpu_trace);
275 put_cpu_var(pf_reason);
276}
277
278static void ioremap_trace_core(resource_size_t offset, unsigned long size,
279 void __iomem *addr)
280{
281 static atomic_t next_id;
282 struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
283 /* These are page-unaligned. */
284 struct mmiotrace_map map = {
285 .phys = offset,
286 .virt = (unsigned long)addr,
287 .len = size,
288 .opcode = MMIO_PROBE
289 };
290
291 if (!trace) {
292 pr_err(NAME "kmalloc failed in ioremap\n");
293 return;
294 }
295
296 *trace = (struct remap_trace) {
297 .probe = {
298 .addr = (unsigned long)addr,
299 .len = size,
300 .pre_handler = pre,
301 .post_handler = post,
302 .private = trace
303 },
304 .phys = offset,
305 .id = atomic_inc_return(&next_id)
306 };
307 map.map_id = trace->id;
308
309 spin_lock_irq(&trace_lock);
310 if (!is_enabled())
311 goto not_enabled;
312
313 mmio_trace_mapping(&map);
314 list_add_tail(&trace->list, &trace_list);
315 if (!nommiotrace)
316 register_kmmio_probe(&trace->probe);
317
318not_enabled:
319 spin_unlock_irq(&trace_lock);
320}
321
322void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
323 void __iomem *addr)
324{
325 if (!is_enabled()) /* recheck and proper locking in *_core() */
326 return;
327
328 pr_debug(NAME "ioremap_*(0x%llx, 0x%lx) = %p\n",
329 (unsigned long long)offset, size, addr);
330 if ((filter_offset) && (offset != filter_offset))
331 return;
332 ioremap_trace_core(offset, size, addr);
333}
334
335static void iounmap_trace_core(volatile void __iomem *addr)
336{
337 struct mmiotrace_map map = {
338 .phys = 0,
339 .virt = (unsigned long)addr,
340 .len = 0,
341 .opcode = MMIO_UNPROBE
342 };
343 struct remap_trace *trace;
344 struct remap_trace *tmp;
345 struct remap_trace *found_trace = NULL;
346
347 pr_debug(NAME "Unmapping %p.\n", addr);
348
349 spin_lock_irq(&trace_lock);
350 if (!is_enabled())
351 goto not_enabled;
352
353 list_for_each_entry_safe(trace, tmp, &trace_list, list) {
354 if ((unsigned long)addr == trace->probe.addr) {
355 if (!nommiotrace)
356 unregister_kmmio_probe(&trace->probe);
357 list_del(&trace->list);
358 found_trace = trace;
359 break;
360 }
361 }
362 map.map_id = (found_trace) ? found_trace->id : -1;
363 mmio_trace_mapping(&map);
364
365not_enabled:
366 spin_unlock_irq(&trace_lock);
367 if (found_trace) {
368 synchronize_rcu(); /* unregister_kmmio_probe() requirement */
369 kfree(found_trace);
370 }
371}
372
373void mmiotrace_iounmap(volatile void __iomem *addr)
374{
375 might_sleep();
376 if (is_enabled()) /* recheck and proper locking in *_core() */
377 iounmap_trace_core(addr);
378}
379
380static void clear_trace_list(void)
381{
382 struct remap_trace *trace;
383 struct remap_trace *tmp;
384
385 /*
386 * No locking required, because the caller ensures we are in a
387 * critical section via mutex, and is_enabled() is false,
388 * i.e. nothing can traverse or modify this list.
389 * Caller also ensures is_enabled() cannot change.
390 */
391 list_for_each_entry(trace, &trace_list, list) {
392 pr_notice(NAME "purging non-iounmapped "
393 "trace @0x%08lx, size 0x%lx.\n",
394 trace->probe.addr, trace->probe.len);
395 if (!nommiotrace)
396 unregister_kmmio_probe(&trace->probe);
397 }
398 synchronize_rcu(); /* unregister_kmmio_probe() requirement */
399
400 list_for_each_entry_safe(trace, tmp, &trace_list, list) {
401 list_del(&trace->list);
402 kfree(trace);
403 }
404}
405
406#ifdef CONFIG_HOTPLUG_CPU
407static cpumask_t downed_cpus;
408
409static void enter_uniprocessor(void)
410{
411 int cpu;
412 int err;
413
414 get_online_cpus();
415 downed_cpus = cpu_online_map;
416 cpu_clear(first_cpu(cpu_online_map), downed_cpus);
417 if (num_online_cpus() > 1)
418 pr_notice(NAME "Disabling non-boot CPUs...\n");
419 put_online_cpus();
420
421 for_each_cpu_mask(cpu, downed_cpus) {
422 err = cpu_down(cpu);
423 if (!err)
424 pr_info(NAME "CPU%d is down.\n", cpu);
425 else
426 pr_err(NAME "Error taking CPU%d down: %d\n", cpu, err);
427 }
428 if (num_online_cpus() > 1)
429 pr_warning(NAME "multiple CPUs still online, "
430 "may miss events.\n");
431}
432
433static void leave_uniprocessor(void)
434{
435 int cpu;
436 int err;
437
438 if (cpus_weight(downed_cpus) == 0)
439 return;
440 pr_notice(NAME "Re-enabling CPUs...\n");
441 for_each_cpu_mask(cpu, downed_cpus) {
442 err = cpu_up(cpu);
443 if (!err)
444 pr_info(NAME "enabled CPU%d.\n", cpu);
445 else
446 pr_err(NAME "cannot re-enable CPU%d: %d\n", cpu, err);
447 }
448}
449
450#else /* !CONFIG_HOTPLUG_CPU */
451static void enter_uniprocessor(void)
452{
453 if (num_online_cpus() > 1)
454 pr_warning(NAME "multiple CPUs are online, may miss events. "
455 "Suggest booting with maxcpus=1 kernel argument.\n");
456}
457
458static void leave_uniprocessor(void)
459{
460}
461#endif
462
463#if 0 /* XXX: out of order */
464static struct file_operations fops_marker = {
465 .owner = THIS_MODULE,
466 .write = write_marker
467};
468#endif
469
470void enable_mmiotrace(void)
471{
472 mutex_lock(&mmiotrace_mutex);
473 if (is_enabled())
474 goto out;
475
476#if 0 /* XXX: tracing does not support text entries */
477 marker_file = debugfs_create_file("marker", 0660, dir, NULL,
478 &fops_marker);
479 if (!marker_file)
480 pr_err(NAME "marker file creation failed.\n");
481#endif
482
483 if (nommiotrace)
484 pr_info(NAME "MMIO tracing disabled.\n");
485 enter_uniprocessor();
486 spin_lock_irq(&trace_lock);
487 atomic_inc(&mmiotrace_enabled);
488 spin_unlock_irq(&trace_lock);
489 pr_info(NAME "enabled.\n");
490out:
491 mutex_unlock(&mmiotrace_mutex);
492}
493
494void disable_mmiotrace(void)
495{
496 mutex_lock(&mmiotrace_mutex);
497 if (!is_enabled())
498 goto out;
499
500 spin_lock_irq(&trace_lock);
501 atomic_dec(&mmiotrace_enabled);
502 BUG_ON(is_enabled());
503 spin_unlock_irq(&trace_lock);
504
505 clear_trace_list(); /* guarantees: no more kmmio callbacks */
506 leave_uniprocessor();
507 if (marker_file) {
508 debugfs_remove(marker_file);
509 marker_file = NULL;
510 }
511
512 pr_info(NAME "disabled.\n");
513out:
514 mutex_unlock(&mmiotrace_mutex);
515}
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index c5066d519e5d..b432d5781773 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -27,30 +27,17 @@
27struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; 27struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
28EXPORT_SYMBOL(node_data); 28EXPORT_SYMBOL(node_data);
29 29
30bootmem_data_t plat_node_bdata[MAX_NUMNODES]; 30static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
31 31
32struct memnode memnode; 32struct memnode memnode;
33 33
34#ifdef CONFIG_SMP
35int x86_cpu_to_node_map_init[NR_CPUS] = {
36 [0 ... NR_CPUS-1] = NUMA_NO_NODE
37};
38void *x86_cpu_to_node_map_early_ptr;
39EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
40#endif
41DEFINE_PER_CPU(int, x86_cpu_to_node_map) = NUMA_NO_NODE;
42EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
43
44s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = { 34s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
45 [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE 35 [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
46}; 36};
47 37
48cpumask_t node_to_cpumask_map[MAX_NUMNODES] __read_mostly;
49EXPORT_SYMBOL(node_to_cpumask_map);
50
51int numa_off __initdata; 38int numa_off __initdata;
52unsigned long __initdata nodemap_addr; 39static unsigned long __initdata nodemap_addr;
53unsigned long __initdata nodemap_size; 40static unsigned long __initdata nodemap_size;
54 41
55/* 42/*
56 * Given a shift value, try to populate memnodemap[] 43 * Given a shift value, try to populate memnodemap[]
@@ -99,7 +86,7 @@ static int __init allocate_cachealigned_memnodemap(void)
99 86
100 addr = 0x8000; 87 addr = 0x8000;
101 nodemap_size = round_up(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES); 88 nodemap_size = round_up(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
102 nodemap_addr = find_e820_area(addr, end_pfn<<PAGE_SHIFT, 89 nodemap_addr = find_e820_area(addr, max_pfn<<PAGE_SHIFT,
103 nodemap_size, L1_CACHE_BYTES); 90 nodemap_size, L1_CACHE_BYTES);
104 if (nodemap_addr == -1UL) { 91 if (nodemap_addr == -1UL) {
105 printk(KERN_ERR 92 printk(KERN_ERR
@@ -192,7 +179,7 @@ static void * __init early_node_mem(int nodeid, unsigned long start,
192void __init setup_node_bootmem(int nodeid, unsigned long start, 179void __init setup_node_bootmem(int nodeid, unsigned long start,
193 unsigned long end) 180 unsigned long end)
194{ 181{
195 unsigned long start_pfn, end_pfn, bootmap_pages, bootmap_size; 182 unsigned long start_pfn, last_pfn, bootmap_pages, bootmap_size;
196 unsigned long bootmap_start, nodedata_phys; 183 unsigned long bootmap_start, nodedata_phys;
197 void *bootmap; 184 void *bootmap;
198 const int pgdat_size = round_up(sizeof(pg_data_t), PAGE_SIZE); 185 const int pgdat_size = round_up(sizeof(pg_data_t), PAGE_SIZE);
@@ -204,7 +191,7 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
204 start, end); 191 start, end);
205 192
206 start_pfn = start >> PAGE_SHIFT; 193 start_pfn = start >> PAGE_SHIFT;
207 end_pfn = end >> PAGE_SHIFT; 194 last_pfn = end >> PAGE_SHIFT;
208 195
209 node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size, 196 node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size,
210 SMP_CACHE_BYTES); 197 SMP_CACHE_BYTES);
@@ -217,7 +204,7 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
217 memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t)); 204 memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t));
218 NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid]; 205 NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid];
219 NODE_DATA(nodeid)->node_start_pfn = start_pfn; 206 NODE_DATA(nodeid)->node_start_pfn = start_pfn;
220 NODE_DATA(nodeid)->node_spanned_pages = end_pfn - start_pfn; 207 NODE_DATA(nodeid)->node_spanned_pages = last_pfn - start_pfn;
221 208
222 /* 209 /*
223 * Find a place for the bootmem map 210 * Find a place for the bootmem map
@@ -226,14 +213,14 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
226 * early_node_mem will get that with find_e820_area instead 213 * early_node_mem will get that with find_e820_area instead
227 * of alloc_bootmem, that could clash with reserved range 214 * of alloc_bootmem, that could clash with reserved range
228 */ 215 */
229 bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn); 216 bootmap_pages = bootmem_bootmap_pages(last_pfn - start_pfn);
230 nid = phys_to_nid(nodedata_phys); 217 nid = phys_to_nid(nodedata_phys);
231 if (nid == nodeid) 218 if (nid == nodeid)
232 bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE); 219 bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE);
233 else 220 else
234 bootmap_start = round_up(start, PAGE_SIZE); 221 bootmap_start = round_up(start, PAGE_SIZE);
235 /* 222 /*
236 * SMP_CAHCE_BYTES could be enough, but init_bootmem_node like 223 * SMP_CACHE_BYTES could be enough, but init_bootmem_node like
237 * to use that to align to PAGE_SIZE 224 * to use that to align to PAGE_SIZE
238 */ 225 */
239 bootmap = early_node_mem(nodeid, bootmap_start, end, 226 bootmap = early_node_mem(nodeid, bootmap_start, end,
@@ -248,7 +235,7 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
248 235
249 bootmap_size = init_bootmem_node(NODE_DATA(nodeid), 236 bootmap_size = init_bootmem_node(NODE_DATA(nodeid),
250 bootmap_start >> PAGE_SHIFT, 237 bootmap_start >> PAGE_SHIFT,
251 start_pfn, end_pfn); 238 start_pfn, last_pfn);
252 239
253 printk(KERN_INFO " bootmap [%016lx - %016lx] pages %lx\n", 240 printk(KERN_INFO " bootmap [%016lx - %016lx] pages %lx\n",
254 bootmap_start, bootmap_start + bootmap_size - 1, 241 bootmap_start, bootmap_start + bootmap_size - 1,
@@ -309,7 +296,7 @@ void __init numa_init_array(void)
309 296
310#ifdef CONFIG_NUMA_EMU 297#ifdef CONFIG_NUMA_EMU
311/* Numa emulation */ 298/* Numa emulation */
312char *cmdline __initdata; 299static char *cmdline __initdata;
313 300
314/* 301/*
315 * Setups up nid to range from addr to addr + size. If the end 302 * Setups up nid to range from addr to addr + size. If the end
@@ -413,15 +400,15 @@ static int __init split_nodes_by_size(struct bootnode *nodes, u64 *addr,
413} 400}
414 401
415/* 402/*
416 * Sets up the system RAM area from start_pfn to end_pfn according to the 403 * Sets up the system RAM area from start_pfn to last_pfn according to the
417 * numa=fake command-line option. 404 * numa=fake command-line option.
418 */ 405 */
419static struct bootnode nodes[MAX_NUMNODES] __initdata; 406static struct bootnode nodes[MAX_NUMNODES] __initdata;
420 407
421static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn) 408static int __init numa_emulation(unsigned long start_pfn, unsigned long last_pfn)
422{ 409{
423 u64 size, addr = start_pfn << PAGE_SHIFT; 410 u64 size, addr = start_pfn << PAGE_SHIFT;
424 u64 max_addr = end_pfn << PAGE_SHIFT; 411 u64 max_addr = last_pfn << PAGE_SHIFT;
425 int num_nodes = 0, num = 0, coeff_flag, coeff = -1, i; 412 int num_nodes = 0, num = 0, coeff_flag, coeff = -1, i;
426 413
427 memset(&nodes, 0, sizeof(nodes)); 414 memset(&nodes, 0, sizeof(nodes));
@@ -527,7 +514,7 @@ out:
527} 514}
528#endif /* CONFIG_NUMA_EMU */ 515#endif /* CONFIG_NUMA_EMU */
529 516
530void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn) 517void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn)
531{ 518{
532 int i; 519 int i;
533 520
@@ -535,7 +522,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
535 nodes_clear(node_online_map); 522 nodes_clear(node_online_map);
536 523
537#ifdef CONFIG_NUMA_EMU 524#ifdef CONFIG_NUMA_EMU
538 if (cmdline && !numa_emulation(start_pfn, end_pfn)) 525 if (cmdline && !numa_emulation(start_pfn, last_pfn))
539 return; 526 return;
540 nodes_clear(node_possible_map); 527 nodes_clear(node_possible_map);
541 nodes_clear(node_online_map); 528 nodes_clear(node_online_map);
@@ -543,7 +530,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
543 530
544#ifdef CONFIG_ACPI_NUMA 531#ifdef CONFIG_ACPI_NUMA
545 if (!numa_off && !acpi_scan_nodes(start_pfn << PAGE_SHIFT, 532 if (!numa_off && !acpi_scan_nodes(start_pfn << PAGE_SHIFT,
546 end_pfn << PAGE_SHIFT)) 533 last_pfn << PAGE_SHIFT))
547 return; 534 return;
548 nodes_clear(node_possible_map); 535 nodes_clear(node_possible_map);
549 nodes_clear(node_online_map); 536 nodes_clear(node_online_map);
@@ -551,7 +538,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
551 538
552#ifdef CONFIG_K8_NUMA 539#ifdef CONFIG_K8_NUMA
553 if (!numa_off && !k8_scan_nodes(start_pfn<<PAGE_SHIFT, 540 if (!numa_off && !k8_scan_nodes(start_pfn<<PAGE_SHIFT,
554 end_pfn<<PAGE_SHIFT)) 541 last_pfn<<PAGE_SHIFT))
555 return; 542 return;
556 nodes_clear(node_possible_map); 543 nodes_clear(node_possible_map);
557 nodes_clear(node_online_map); 544 nodes_clear(node_online_map);
@@ -561,7 +548,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
561 548
562 printk(KERN_INFO "Faking a node at %016lx-%016lx\n", 549 printk(KERN_INFO "Faking a node at %016lx-%016lx\n",
563 start_pfn << PAGE_SHIFT, 550 start_pfn << PAGE_SHIFT,
564 end_pfn << PAGE_SHIFT); 551 last_pfn << PAGE_SHIFT);
565 /* setup dummy node covering all memory */ 552 /* setup dummy node covering all memory */
566 memnode_shift = 63; 553 memnode_shift = 63;
567 memnodemap = memnode.embedded_map; 554 memnodemap = memnode.embedded_map;
@@ -570,29 +557,8 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
570 node_set(0, node_possible_map); 557 node_set(0, node_possible_map);
571 for (i = 0; i < NR_CPUS; i++) 558 for (i = 0; i < NR_CPUS; i++)
572 numa_set_node(i, 0); 559 numa_set_node(i, 0);
573 /* cpumask_of_cpu() may not be available during early startup */ 560 e820_register_active_regions(0, start_pfn, last_pfn);
574 memset(&node_to_cpumask_map[0], 0, sizeof(node_to_cpumask_map[0])); 561 setup_node_bootmem(0, start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT);
575 cpu_set(0, node_to_cpumask_map[0]);
576 e820_register_active_regions(0, start_pfn, end_pfn);
577 setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT);
578}
579
580__cpuinit void numa_add_cpu(int cpu)
581{
582 set_bit(cpu,
583 (unsigned long *)&node_to_cpumask_map[early_cpu_to_node(cpu)]);
584}
585
586void __cpuinit numa_set_node(int cpu, int node)
587{
588 int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
589
590 if(cpu_to_node_map)
591 cpu_to_node_map[cpu] = node;
592 else if(per_cpu_offset(cpu))
593 per_cpu(x86_cpu_to_node_map, cpu) = node;
594 else
595 Dprintk(KERN_INFO "Setting node for non-present cpu %d\n", cpu);
596} 562}
597 563
598unsigned long __init numa_free_all_bootmem(void) 564unsigned long __init numa_free_all_bootmem(void)
@@ -613,7 +579,7 @@ void __init paging_init(void)
613 memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); 579 memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
614 max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN; 580 max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
615 max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN; 581 max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
616 max_zone_pfns[ZONE_NORMAL] = end_pfn; 582 max_zone_pfns[ZONE_NORMAL] = max_pfn;
617 583
618 sparse_memory_present_with_active_regions(MAX_NUMNODES); 584 sparse_memory_present_with_active_regions(MAX_NUMNODES);
619 sparse_init(); 585 sparse_init();
@@ -641,6 +607,7 @@ static __init int numa_setup(char *opt)
641} 607}
642early_param("numa", numa_setup); 608early_param("numa", numa_setup);
643 609
610#ifdef CONFIG_NUMA
644/* 611/*
645 * Setup early cpu_to_node. 612 * Setup early cpu_to_node.
646 * 613 *
@@ -652,14 +619,19 @@ early_param("numa", numa_setup);
652 * is already initialized in a round robin manner at numa_init_array, 619 * is already initialized in a round robin manner at numa_init_array,
653 * prior to this call, and this initialization is good enough 620 * prior to this call, and this initialization is good enough
654 * for the fake NUMA cases. 621 * for the fake NUMA cases.
622 *
623 * Called before the per_cpu areas are setup.
655 */ 624 */
656void __init init_cpu_to_node(void) 625void __init init_cpu_to_node(void)
657{ 626{
658 int i; 627 int cpu;
628 u16 *cpu_to_apicid = early_per_cpu_ptr(x86_cpu_to_apicid);
659 629
660 for (i = 0; i < NR_CPUS; i++) { 630 BUG_ON(cpu_to_apicid == NULL);
631
632 for_each_possible_cpu(cpu) {
661 int node; 633 int node;
662 u16 apicid = x86_cpu_to_apicid_init[i]; 634 u16 apicid = cpu_to_apicid[cpu];
663 635
664 if (apicid == BAD_APICID) 636 if (apicid == BAD_APICID)
665 continue; 637 continue;
@@ -668,8 +640,9 @@ void __init init_cpu_to_node(void)
668 continue; 640 continue;
669 if (!node_online(node)) 641 if (!node_online(node))
670 continue; 642 continue;
671 numa_set_node(i, node); 643 numa_set_node(cpu, node);
672 } 644 }
673} 645}
646#endif
674 647
675 648
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 75f1b109aae8..0dcd42eb94e6 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -1,8 +1,8 @@
1/* 1/*
2 * self test for change_page_attr. 2 * self test for change_page_attr.
3 * 3 *
4 * Clears the global bit on random pages in the direct mapping, then reverts 4 * Clears the a test pte bit on random pages in the direct mapping,
5 * and compares page tables forwards and afterwards. 5 * then reverts and compares page tables forwards and afterwards.
6 */ 6 */
7#include <linux/bootmem.h> 7#include <linux/bootmem.h>
8#include <linux/kthread.h> 8#include <linux/kthread.h>
@@ -32,6 +32,13 @@ enum {
32 GPS = (1<<30) 32 GPS = (1<<30)
33}; 33};
34 34
35#define PAGE_TESTBIT __pgprot(_PAGE_UNUSED1)
36
37static int pte_testbit(pte_t pte)
38{
39 return pte_flags(pte) & _PAGE_UNUSED1;
40}
41
35struct split_state { 42struct split_state {
36 long lpg, gpg, spg, exec; 43 long lpg, gpg, spg, exec;
37 long min_exec, max_exec; 44 long min_exec, max_exec;
@@ -165,15 +172,14 @@ static int pageattr_test(void)
165 continue; 172 continue;
166 } 173 }
167 174
168 err = change_page_attr_clear(addr[i], len[i], 175 err = change_page_attr_set(addr[i], len[i], PAGE_TESTBIT);
169 __pgprot(_PAGE_GLOBAL));
170 if (err < 0) { 176 if (err < 0) {
171 printk(KERN_ERR "CPA %d failed %d\n", i, err); 177 printk(KERN_ERR "CPA %d failed %d\n", i, err);
172 failed++; 178 failed++;
173 } 179 }
174 180
175 pte = lookup_address(addr[i], &level); 181 pte = lookup_address(addr[i], &level);
176 if (!pte || pte_global(*pte) || pte_huge(*pte)) { 182 if (!pte || !pte_testbit(*pte) || pte_huge(*pte)) {
177 printk(KERN_ERR "CPA %lx: bad pte %Lx\n", addr[i], 183 printk(KERN_ERR "CPA %lx: bad pte %Lx\n", addr[i],
178 pte ? (u64)pte_val(*pte) : 0ULL); 184 pte ? (u64)pte_val(*pte) : 0ULL);
179 failed++; 185 failed++;
@@ -198,14 +204,13 @@ static int pageattr_test(void)
198 failed++; 204 failed++;
199 continue; 205 continue;
200 } 206 }
201 err = change_page_attr_set(addr[i], len[i], 207 err = change_page_attr_clear(addr[i], len[i], PAGE_TESTBIT);
202 __pgprot(_PAGE_GLOBAL));
203 if (err < 0) { 208 if (err < 0) {
204 printk(KERN_ERR "CPA reverting failed: %d\n", err); 209 printk(KERN_ERR "CPA reverting failed: %d\n", err);
205 failed++; 210 failed++;
206 } 211 }
207 pte = lookup_address(addr[i], &level); 212 pte = lookup_address(addr[i], &level);
208 if (!pte || !pte_global(*pte)) { 213 if (!pte || pte_testbit(*pte)) {
209 printk(KERN_ERR "CPA %lx: bad pte after revert %Lx\n", 214 printk(KERN_ERR "CPA %lx: bad pte after revert %Lx\n",
210 addr[i], pte ? (u64)pte_val(*pte) : 0ULL); 215 addr[i], pte ? (u64)pte_val(*pte) : 0ULL);
211 failed++; 216 failed++;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 60bcb5b6a37e..65c6e46bf059 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -34,6 +34,41 @@ struct cpa_data {
34 unsigned force_split : 1; 34 unsigned force_split : 1;
35}; 35};
36 36
37#ifdef CONFIG_PROC_FS
38static unsigned long direct_pages_count[PG_LEVEL_NUM];
39
40void update_page_count(int level, unsigned long pages)
41{
42 unsigned long flags;
43
44 /* Protect against CPA */
45 spin_lock_irqsave(&pgd_lock, flags);
46 direct_pages_count[level] += pages;
47 spin_unlock_irqrestore(&pgd_lock, flags);
48}
49
50static void split_page_count(int level)
51{
52 direct_pages_count[level]--;
53 direct_pages_count[level - 1] += PTRS_PER_PTE;
54}
55
56int arch_report_meminfo(char *page)
57{
58 int n = sprintf(page, "DirectMap4k: %8lu\n"
59 "DirectMap2M: %8lu\n",
60 direct_pages_count[PG_LEVEL_4K],
61 direct_pages_count[PG_LEVEL_2M]);
62#ifdef CONFIG_X86_64
63 n += sprintf(page + n, "DirectMap1G: %8lu\n",
64 direct_pages_count[PG_LEVEL_1G]);
65#endif
66 return n;
67}
68#else
69static inline void split_page_count(int level) { }
70#endif
71
37#ifdef CONFIG_X86_64 72#ifdef CONFIG_X86_64
38 73
39static inline unsigned long highmap_start_pfn(void) 74static inline unsigned long highmap_start_pfn(void)
@@ -106,7 +141,7 @@ static void cpa_flush_all(unsigned long cache)
106{ 141{
107 BUG_ON(irqs_disabled()); 142 BUG_ON(irqs_disabled());
108 143
109 on_each_cpu(__cpa_flush_all, (void *) cache, 1, 1); 144 on_each_cpu(__cpa_flush_all, (void *) cache, 1);
110} 145}
111 146
112static void __cpa_flush_range(void *arg) 147static void __cpa_flush_range(void *arg)
@@ -127,7 +162,7 @@ static void cpa_flush_range(unsigned long start, int numpages, int cache)
127 BUG_ON(irqs_disabled()); 162 BUG_ON(irqs_disabled());
128 WARN_ON(PAGE_ALIGN(start) != start); 163 WARN_ON(PAGE_ALIGN(start) != start);
129 164
130 on_each_cpu(__cpa_flush_range, NULL, 1, 1); 165 on_each_cpu(__cpa_flush_range, NULL, 1);
131 166
132 if (!cache) 167 if (!cache)
133 return; 168 return;
@@ -227,6 +262,7 @@ pte_t *lookup_address(unsigned long address, unsigned int *level)
227 262
228 return pte_offset_kernel(pmd, address); 263 return pte_offset_kernel(pmd, address);
229} 264}
265EXPORT_SYMBOL_GPL(lookup_address);
230 266
231/* 267/*
232 * Set the new pmd in all the pgds we know about: 268 * Set the new pmd in all the pgds we know about:
@@ -500,6 +536,16 @@ static int split_large_page(pte_t *kpte, unsigned long address)
500 for (i = 0; i < PTRS_PER_PTE; i++, pfn += pfninc) 536 for (i = 0; i < PTRS_PER_PTE; i++, pfn += pfninc)
501 set_pte(&pbase[i], pfn_pte(pfn, ref_prot)); 537 set_pte(&pbase[i], pfn_pte(pfn, ref_prot));
502 538
539 if (address >= (unsigned long)__va(0) &&
540 address < (unsigned long)__va(max_low_pfn_mapped << PAGE_SHIFT))
541 split_page_count(level);
542
543#ifdef CONFIG_X86_64
544 if (address >= (unsigned long)__va(1UL<<32) &&
545 address < (unsigned long)__va(max_pfn_mapped << PAGE_SHIFT))
546 split_page_count(level);
547#endif
548
503 /* 549 /*
504 * Install the new, split up pagetable. Important details here: 550 * Install the new, split up pagetable. Important details here:
505 * 551 *
@@ -613,15 +659,24 @@ static int cpa_process_alias(struct cpa_data *cpa)
613 struct cpa_data alias_cpa; 659 struct cpa_data alias_cpa;
614 int ret = 0; 660 int ret = 0;
615 661
616 if (cpa->pfn > max_pfn_mapped) 662 if (cpa->pfn >= max_pfn_mapped)
617 return 0; 663 return 0;
618 664
665#ifdef CONFIG_X86_64
666 if (cpa->pfn >= max_low_pfn_mapped && cpa->pfn < (1UL<<(32-PAGE_SHIFT)))
667 return 0;
668#endif
619 /* 669 /*
620 * No need to redo, when the primary call touched the direct 670 * No need to redo, when the primary call touched the direct
621 * mapping already: 671 * mapping already:
622 */ 672 */
623 if (!within(cpa->vaddr, PAGE_OFFSET, 673 if (!(within(cpa->vaddr, PAGE_OFFSET,
624 PAGE_OFFSET + (max_pfn_mapped << PAGE_SHIFT))) { 674 PAGE_OFFSET + (max_low_pfn_mapped << PAGE_SHIFT))
675#ifdef CONFIG_X86_64
676 || within(cpa->vaddr, PAGE_OFFSET + (1UL<<32),
677 PAGE_OFFSET + (max_pfn_mapped << PAGE_SHIFT))
678#endif
679 )) {
625 680
626 alias_cpa = *cpa; 681 alias_cpa = *cpa;
627 alias_cpa.vaddr = (unsigned long) __va(cpa->pfn << PAGE_SHIFT); 682 alias_cpa.vaddr = (unsigned long) __va(cpa->pfn << PAGE_SHIFT);
@@ -805,7 +860,7 @@ int _set_memory_wc(unsigned long addr, int numpages)
805 860
806int set_memory_wc(unsigned long addr, int numpages) 861int set_memory_wc(unsigned long addr, int numpages)
807{ 862{
808 if (!pat_wc_enabled) 863 if (!pat_enabled)
809 return set_memory_uc(addr, numpages); 864 return set_memory_uc(addr, numpages);
810 865
811 if (reserve_memtype(addr, addr + numpages * PAGE_SIZE, 866 if (reserve_memtype(addr, addr + numpages * PAGE_SIZE,
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index de3a99812450..d4585077977a 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -26,15 +26,15 @@
26#include <asm/io.h> 26#include <asm/io.h>
27 27
28#ifdef CONFIG_X86_PAT 28#ifdef CONFIG_X86_PAT
29int __read_mostly pat_wc_enabled = 1; 29int __read_mostly pat_enabled = 1;
30 30
31void __cpuinit pat_disable(char *reason) 31void __cpuinit pat_disable(char *reason)
32{ 32{
33 pat_wc_enabled = 0; 33 pat_enabled = 0;
34 printk(KERN_INFO "%s\n", reason); 34 printk(KERN_INFO "%s\n", reason);
35} 35}
36 36
37static int nopat(char *str) 37static int __init nopat(char *str)
38{ 38{
39 pat_disable("PAT support disabled."); 39 pat_disable("PAT support disabled.");
40 return 0; 40 return 0;
@@ -42,6 +42,19 @@ static int nopat(char *str)
42early_param("nopat", nopat); 42early_param("nopat", nopat);
43#endif 43#endif
44 44
45
46static int debug_enable;
47static int __init pat_debug_setup(char *str)
48{
49 debug_enable = 1;
50 return 0;
51}
52__setup("debugpat", pat_debug_setup);
53
54#define dprintk(fmt, arg...) \
55 do { if (debug_enable) printk(KERN_INFO fmt, ##arg); } while (0)
56
57
45static u64 __read_mostly boot_pat_state; 58static u64 __read_mostly boot_pat_state;
46 59
47enum { 60enum {
@@ -53,24 +66,25 @@ enum {
53 PAT_UC_MINUS = 7, /* UC, but can be overriden by MTRR */ 66 PAT_UC_MINUS = 7, /* UC, but can be overriden by MTRR */
54}; 67};
55 68
56#define PAT(x,y) ((u64)PAT_ ## y << ((x)*8)) 69#define PAT(x, y) ((u64)PAT_ ## y << ((x)*8))
57 70
58void pat_init(void) 71void pat_init(void)
59{ 72{
60 u64 pat; 73 u64 pat;
61 74
62 if (!pat_wc_enabled) 75 if (!pat_enabled)
63 return; 76 return;
64 77
65 /* Paranoia check. */ 78 /* Paranoia check. */
66 if (!cpu_has_pat) { 79 if (!cpu_has_pat && boot_pat_state) {
67 printk(KERN_ERR "PAT enabled, but CPU feature cleared\n");
68 /* 80 /*
69 * Panic if this happens on the secondary CPU, and we 81 * If this happens we are on a secondary CPU, but
70 * switched to PAT on the boot CPU. We have no way to 82 * switched to PAT on the boot CPU. We have no way to
71 * undo PAT. 83 * undo PAT.
72 */ 84 */
73 BUG_ON(boot_pat_state); 85 printk(KERN_ERR "PAT enabled, "
86 "but not supported by secondary CPU\n");
87 BUG();
74 } 88 }
75 89
76 /* Set PWT to Write-Combining. All other bits stay the same */ 90 /* Set PWT to Write-Combining. All other bits stay the same */
@@ -86,8 +100,8 @@ void pat_init(void)
86 * 011 UC _PAGE_CACHE_UC 100 * 011 UC _PAGE_CACHE_UC
87 * PAT bit unused 101 * PAT bit unused
88 */ 102 */
89 pat = PAT(0,WB) | PAT(1,WC) | PAT(2,UC_MINUS) | PAT(3,UC) | 103 pat = PAT(0, WB) | PAT(1, WC) | PAT(2, UC_MINUS) | PAT(3, UC) |
90 PAT(4,WB) | PAT(5,WC) | PAT(6,UC_MINUS) | PAT(7,UC); 104 PAT(4, WB) | PAT(5, WC) | PAT(6, UC_MINUS) | PAT(7, UC);
91 105
92 /* Boot CPU check */ 106 /* Boot CPU check */
93 if (!boot_pat_state) 107 if (!boot_pat_state)
@@ -103,11 +117,11 @@ void pat_init(void)
103static char *cattr_name(unsigned long flags) 117static char *cattr_name(unsigned long flags)
104{ 118{
105 switch (flags & _PAGE_CACHE_MASK) { 119 switch (flags & _PAGE_CACHE_MASK) {
106 case _PAGE_CACHE_UC: return "uncached"; 120 case _PAGE_CACHE_UC: return "uncached";
107 case _PAGE_CACHE_UC_MINUS: return "uncached-minus"; 121 case _PAGE_CACHE_UC_MINUS: return "uncached-minus";
108 case _PAGE_CACHE_WB: return "write-back"; 122 case _PAGE_CACHE_WB: return "write-back";
109 case _PAGE_CACHE_WC: return "write-combining"; 123 case _PAGE_CACHE_WC: return "write-combining";
110 default: return "broken"; 124 default: return "broken";
111 } 125 }
112} 126}
113 127
@@ -145,46 +159,50 @@ static DEFINE_SPINLOCK(memtype_lock); /* protects memtype list */
145 * The intersection is based on "Effective Memory Type" tables in IA-32 159 * The intersection is based on "Effective Memory Type" tables in IA-32
146 * SDM vol 3a 160 * SDM vol 3a
147 */ 161 */
148static int pat_x_mtrr_type(u64 start, u64 end, unsigned long prot, 162static unsigned long pat_x_mtrr_type(u64 start, u64 end, unsigned long req_type)
149 unsigned long *ret_prot)
150{ 163{
151 unsigned long pat_type; 164 /*
152 u8 mtrr_type; 165 * Look for MTRR hint to get the effective type in case where PAT
153 166 * request is for WB.
154 mtrr_type = mtrr_type_lookup(start, end); 167 */
155 if (mtrr_type == 0xFF) { /* MTRR not enabled */ 168 if (req_type == _PAGE_CACHE_WB) {
156 *ret_prot = prot; 169 u8 mtrr_type;
157 return 0; 170
158 } 171 mtrr_type = mtrr_type_lookup(start, end);
159 if (mtrr_type == 0xFE) { /* MTRR match error */ 172 if (mtrr_type == MTRR_TYPE_UNCACHABLE)
160 *ret_prot = _PAGE_CACHE_UC; 173 return _PAGE_CACHE_UC;
161 return -1; 174 if (mtrr_type == MTRR_TYPE_WRCOMB)
162 } 175 return _PAGE_CACHE_WC;
163 if (mtrr_type != MTRR_TYPE_UNCACHABLE &&
164 mtrr_type != MTRR_TYPE_WRBACK &&
165 mtrr_type != MTRR_TYPE_WRCOMB) { /* MTRR type unhandled */
166 *ret_prot = _PAGE_CACHE_UC;
167 return -1;
168 } 176 }
169 177
170 pat_type = prot & _PAGE_CACHE_MASK; 178 return req_type;
171 prot &= (~_PAGE_CACHE_MASK); 179}
172 180
173 /* Currently doing intersection by hand. Optimize it later. */ 181static int chk_conflict(struct memtype *new, struct memtype *entry,
174 if (pat_type == _PAGE_CACHE_WC) { 182 unsigned long *type)
175 *ret_prot = prot | _PAGE_CACHE_WC; 183{
176 } else if (pat_type == _PAGE_CACHE_UC_MINUS) { 184 if (new->type != entry->type) {
177 *ret_prot = prot | _PAGE_CACHE_UC_MINUS; 185 if (type) {
178 } else if (pat_type == _PAGE_CACHE_UC || 186 new->type = entry->type;
179 mtrr_type == MTRR_TYPE_UNCACHABLE) { 187 *type = entry->type;
180 *ret_prot = prot | _PAGE_CACHE_UC; 188 } else
181 } else if (mtrr_type == MTRR_TYPE_WRCOMB) { 189 goto conflict;
182 *ret_prot = prot | _PAGE_CACHE_WC;
183 } else {
184 *ret_prot = prot | _PAGE_CACHE_WB;
185 } 190 }
186 191
192 /* check overlaps with more than one entry in the list */
193 list_for_each_entry_continue(entry, &memtype_list, nd) {
194 if (new->end <= entry->start)
195 break;
196 else if (new->type != entry->type)
197 goto conflict;
198 }
187 return 0; 199 return 0;
200
201 conflict:
202 printk(KERN_INFO "%s:%d conflicting memory types "
203 "%Lx-%Lx %s<->%s\n", current->comm, current->pid, new->start,
204 new->end, cattr_name(new->type), cattr_name(entry->type));
205 return -EBUSY;
188} 206}
189 207
190/* 208/*
@@ -197,251 +215,134 @@ static int pat_x_mtrr_type(u64 start, u64 end, unsigned long prot,
197 * req_type will have a special case value '-1', when requester want to inherit 215 * req_type will have a special case value '-1', when requester want to inherit
198 * the memory type from mtrr (if WB), existing PAT, defaulting to UC_MINUS. 216 * the memory type from mtrr (if WB), existing PAT, defaulting to UC_MINUS.
199 * 217 *
200 * If ret_type is NULL, function will return an error if it cannot reserve the 218 * If new_type is NULL, function will return an error if it cannot reserve the
201 * region with req_type. If ret_type is non-null, function will return 219 * region with req_type. If new_type is non-NULL, function will return
202 * available type in ret_type in case of no error. In case of any error 220 * available type in new_type in case of no error. In case of any error
203 * it will return a negative return value. 221 * it will return a negative return value.
204 */ 222 */
205int reserve_memtype(u64 start, u64 end, unsigned long req_type, 223int reserve_memtype(u64 start, u64 end, unsigned long req_type,
206 unsigned long *ret_type) 224 unsigned long *new_type)
207{ 225{
208 struct memtype *new_entry = NULL; 226 struct memtype *new, *entry;
209 struct memtype *parse;
210 unsigned long actual_type; 227 unsigned long actual_type;
228 struct list_head *where;
211 int err = 0; 229 int err = 0;
212 230
213 /* Only track when pat_wc_enabled */ 231 BUG_ON(start >= end); /* end is exclusive */
214 if (!pat_wc_enabled) { 232
233 if (!pat_enabled) {
215 /* This is identical to page table setting without PAT */ 234 /* This is identical to page table setting without PAT */
216 if (ret_type) { 235 if (new_type) {
217 if (req_type == -1) { 236 if (req_type == -1)
218 *ret_type = _PAGE_CACHE_WB; 237 *new_type = _PAGE_CACHE_WB;
219 } else { 238 else
220 *ret_type = req_type; 239 *new_type = req_type & _PAGE_CACHE_MASK;
221 }
222 } 240 }
223 return 0; 241 return 0;
224 } 242 }
225 243
226 /* Low ISA region is always mapped WB in page table. No need to track */ 244 /* Low ISA region is always mapped WB in page table. No need to track */
227 if (start >= ISA_START_ADDRESS && (end - 1) <= ISA_END_ADDRESS) { 245 if (is_ISA_range(start, end - 1)) {
228 if (ret_type) 246 if (new_type)
229 *ret_type = _PAGE_CACHE_WB; 247 *new_type = _PAGE_CACHE_WB;
230
231 return 0; 248 return 0;
232 } 249 }
233 250
234 if (req_type == -1) { 251 if (req_type == -1) {
235 /* 252 /*
236 * Special case where caller wants to inherit from mtrr or 253 * Call mtrr_lookup to get the type hint. This is an
237 * existing pat mapping, defaulting to UC_MINUS in case of 254 * optimization for /dev/mem mmap'ers into WB memory (BIOS
238 * no match. 255 * tools and ACPI tools). Use WB request for WB memory and use
256 * UC_MINUS otherwise.
239 */ 257 */
240 u8 mtrr_type = mtrr_type_lookup(start, end); 258 u8 mtrr_type = mtrr_type_lookup(start, end);
241 if (mtrr_type == 0xFE) { /* MTRR match error */
242 err = -1;
243 }
244 259
245 if (mtrr_type == MTRR_TYPE_WRBACK) { 260 if (mtrr_type == MTRR_TYPE_WRBACK)
246 req_type = _PAGE_CACHE_WB;
247 actual_type = _PAGE_CACHE_WB; 261 actual_type = _PAGE_CACHE_WB;
248 } else { 262 else
249 req_type = _PAGE_CACHE_UC_MINUS;
250 actual_type = _PAGE_CACHE_UC_MINUS; 263 actual_type = _PAGE_CACHE_UC_MINUS;
251 } 264 } else
252 } else { 265 actual_type = pat_x_mtrr_type(start, end,
253 req_type &= _PAGE_CACHE_MASK; 266 req_type & _PAGE_CACHE_MASK);
254 err = pat_x_mtrr_type(start, end, req_type, &actual_type);
255 }
256 267
257 if (err) { 268 new = kmalloc(sizeof(struct memtype), GFP_KERNEL);
258 if (ret_type) 269 if (!new)
259 *ret_type = actual_type;
260
261 return -EINVAL;
262 }
263
264 new_entry = kmalloc(sizeof(struct memtype), GFP_KERNEL);
265 if (!new_entry)
266 return -ENOMEM; 270 return -ENOMEM;
267 271
268 new_entry->start = start; 272 new->start = start;
269 new_entry->end = end; 273 new->end = end;
270 new_entry->type = actual_type; 274 new->type = actual_type;
271 275
272 if (ret_type) 276 if (new_type)
273 *ret_type = actual_type; 277 *new_type = actual_type;
274 278
275 spin_lock(&memtype_lock); 279 spin_lock(&memtype_lock);
276 280
277 /* Search for existing mapping that overlaps the current range */ 281 /* Search for existing mapping that overlaps the current range */
278 list_for_each_entry(parse, &memtype_list, nd) { 282 where = NULL;
279 struct memtype *saved_ptr; 283 list_for_each_entry(entry, &memtype_list, nd) {
280 284 if (end <= entry->start) {
281 if (parse->start >= end) { 285 where = entry->nd.prev;
282 pr_debug("New Entry\n");
283 list_add(&new_entry->nd, parse->nd.prev);
284 new_entry = NULL;
285 break; 286 break;
286 } 287 } else if (start <= entry->start) { /* end > entry->start */
287 288 err = chk_conflict(new, entry, new_type);
288 if (start <= parse->start && end >= parse->start) { 289 if (!err) {
289 if (actual_type != parse->type && ret_type) { 290 dprintk("Overlap at 0x%Lx-0x%Lx\n",
290 actual_type = parse->type; 291 entry->start, entry->end);
291 *ret_type = actual_type; 292 where = entry->nd.prev;
292 new_entry->type = actual_type;
293 }
294
295 if (actual_type != parse->type) {
296 printk(
297 KERN_INFO "%s:%d conflicting memory types %Lx-%Lx %s<->%s\n",
298 current->comm, current->pid,
299 start, end,
300 cattr_name(actual_type),
301 cattr_name(parse->type));
302 err = -EBUSY;
303 break;
304 }
305
306 saved_ptr = parse;
307 /*
308 * Check to see whether the request overlaps more
309 * than one entry in the list
310 */
311 list_for_each_entry_continue(parse, &memtype_list, nd) {
312 if (end <= parse->start) {
313 break;
314 }
315
316 if (actual_type != parse->type) {
317 printk(
318 KERN_INFO "%s:%d conflicting memory types %Lx-%Lx %s<->%s\n",
319 current->comm, current->pid,
320 start, end,
321 cattr_name(actual_type),
322 cattr_name(parse->type));
323 err = -EBUSY;
324 break;
325 }
326 } 293 }
327
328 if (err) {
329 break;
330 }
331
332 pr_debug("Overlap at 0x%Lx-0x%Lx\n",
333 saved_ptr->start, saved_ptr->end);
334 /* No conflict. Go ahead and add this new entry */
335 list_add(&new_entry->nd, saved_ptr->nd.prev);
336 new_entry = NULL;
337 break; 294 break;
338 } 295 } else if (start < entry->end) { /* start > entry->start */
339 296 err = chk_conflict(new, entry, new_type);
340 if (start < parse->end) { 297 if (!err) {
341 if (actual_type != parse->type && ret_type) { 298 dprintk("Overlap at 0x%Lx-0x%Lx\n",
342 actual_type = parse->type; 299 entry->start, entry->end);
343 *ret_type = actual_type; 300 where = &entry->nd;
344 new_entry->type = actual_type;
345 }
346
347 if (actual_type != parse->type) {
348 printk(
349 KERN_INFO "%s:%d conflicting memory types %Lx-%Lx %s<->%s\n",
350 current->comm, current->pid,
351 start, end,
352 cattr_name(actual_type),
353 cattr_name(parse->type));
354 err = -EBUSY;
355 break;
356 } 301 }
357
358 saved_ptr = parse;
359 /*
360 * Check to see whether the request overlaps more
361 * than one entry in the list
362 */
363 list_for_each_entry_continue(parse, &memtype_list, nd) {
364 if (end <= parse->start) {
365 break;
366 }
367
368 if (actual_type != parse->type) {
369 printk(
370 KERN_INFO "%s:%d conflicting memory types %Lx-%Lx %s<->%s\n",
371 current->comm, current->pid,
372 start, end,
373 cattr_name(actual_type),
374 cattr_name(parse->type));
375 err = -EBUSY;
376 break;
377 }
378 }
379
380 if (err) {
381 break;
382 }
383
384 pr_debug(KERN_INFO "Overlap at 0x%Lx-0x%Lx\n",
385 saved_ptr->start, saved_ptr->end);
386 /* No conflict. Go ahead and add this new entry */
387 list_add(&new_entry->nd, &saved_ptr->nd);
388 new_entry = NULL;
389 break; 302 break;
390 } 303 }
391 } 304 }
392 305
393 if (err) { 306 if (err) {
394 printk(KERN_INFO 307 printk(KERN_INFO "reserve_memtype failed 0x%Lx-0x%Lx, "
395 "reserve_memtype failed 0x%Lx-0x%Lx, track %s, req %s\n", 308 "track %s, req %s\n",
396 start, end, cattr_name(new_entry->type), 309 start, end, cattr_name(new->type), cattr_name(req_type));
397 cattr_name(req_type)); 310 kfree(new);
398 kfree(new_entry);
399 spin_unlock(&memtype_lock); 311 spin_unlock(&memtype_lock);
400 return err; 312 return err;
401 } 313 }
402 314
403 if (new_entry) { 315 if (where)
404 /* No conflict. Not yet added to the list. Add to the tail */ 316 list_add(&new->nd, where);
405 list_add_tail(&new_entry->nd, &memtype_list); 317 else
406 pr_debug("New Entry\n"); 318 list_add_tail(&new->nd, &memtype_list);
407 }
408
409 if (ret_type) {
410 pr_debug(
411 "reserve_memtype added 0x%Lx-0x%Lx, track %s, req %s, ret %s\n",
412 start, end, cattr_name(actual_type),
413 cattr_name(req_type), cattr_name(*ret_type));
414 } else {
415 pr_debug(
416 "reserve_memtype added 0x%Lx-0x%Lx, track %s, req %s\n",
417 start, end, cattr_name(actual_type),
418 cattr_name(req_type));
419 }
420 319
421 spin_unlock(&memtype_lock); 320 spin_unlock(&memtype_lock);
321
322 dprintk("reserve_memtype added 0x%Lx-0x%Lx, track %s, req %s, ret %s\n",
323 start, end, cattr_name(new->type), cattr_name(req_type),
324 new_type ? cattr_name(*new_type) : "-");
325
422 return err; 326 return err;
423} 327}
424 328
425int free_memtype(u64 start, u64 end) 329int free_memtype(u64 start, u64 end)
426{ 330{
427 struct memtype *ml; 331 struct memtype *entry;
428 int err = -EINVAL; 332 int err = -EINVAL;
429 333
430 /* Only track when pat_wc_enabled */ 334 if (!pat_enabled)
431 if (!pat_wc_enabled) {
432 return 0; 335 return 0;
433 }
434 336
435 /* Low ISA region is always mapped WB. No need to track */ 337 /* Low ISA region is always mapped WB. No need to track */
436 if (start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS) { 338 if (is_ISA_range(start, end - 1))
437 return 0; 339 return 0;
438 }
439 340
440 spin_lock(&memtype_lock); 341 spin_lock(&memtype_lock);
441 list_for_each_entry(ml, &memtype_list, nd) { 342 list_for_each_entry(entry, &memtype_list, nd) {
442 if (ml->start == start && ml->end == end) { 343 if (entry->start == start && entry->end == end) {
443 list_del(&ml->nd); 344 list_del(&entry->nd);
444 kfree(ml); 345 kfree(entry);
445 err = 0; 346 err = 0;
446 break; 347 break;
447 } 348 }
@@ -453,7 +354,7 @@ int free_memtype(u64 start, u64 end)
453 current->comm, current->pid, start, end); 354 current->comm, current->pid, start, end);
454 } 355 }
455 356
456 pr_debug("free_memtype request 0x%Lx-0x%Lx\n", start, end); 357 dprintk("free_memtype request 0x%Lx-0x%Lx\n", start, end);
457 return err; 358 return err;
458} 359}
459 360
@@ -522,12 +423,12 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
522 * caching for the high addresses through the KEN pin, but 423 * caching for the high addresses through the KEN pin, but
523 * we maintain the tradition of paranoia in this code. 424 * we maintain the tradition of paranoia in this code.
524 */ 425 */
525 if (!pat_wc_enabled && 426 if (!pat_enabled &&
526 ! ( test_bit(X86_FEATURE_MTRR, boot_cpu_data.x86_capability) || 427 !(boot_cpu_has(X86_FEATURE_MTRR) ||
527 test_bit(X86_FEATURE_K6_MTRR, boot_cpu_data.x86_capability) || 428 boot_cpu_has(X86_FEATURE_K6_MTRR) ||
528 test_bit(X86_FEATURE_CYRIX_ARR, boot_cpu_data.x86_capability) || 429 boot_cpu_has(X86_FEATURE_CYRIX_ARR) ||
529 test_bit(X86_FEATURE_CENTAUR_MCR, boot_cpu_data.x86_capability)) && 430 boot_cpu_has(X86_FEATURE_CENTAUR_MCR)) &&
530 (pfn << PAGE_SHIFT) >= __pa(high_memory)) { 431 (pfn << PAGE_SHIFT) >= __pa(high_memory)) {
531 flags = _PAGE_CACHE_UC; 432 flags = _PAGE_CACHE_UC;
532 } 433 }
533#endif 434#endif
@@ -548,8 +449,9 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
548 if (retval < 0) 449 if (retval < 0)
549 return 0; 450 return 0;
550 451
551 if (pfn <= max_pfn_mapped && 452 if (((pfn < max_low_pfn_mapped) ||
552 ioremap_change_attr((unsigned long)__va(offset), size, flags) < 0) { 453 (pfn >= (1UL<<(32 - PAGE_SHIFT)) && pfn < max_pfn_mapped)) &&
454 ioremap_change_attr((unsigned long)__va(offset), size, flags) < 0) {
553 free_memtype(offset, offset + size); 455 free_memtype(offset, offset + size);
554 printk(KERN_INFO 456 printk(KERN_INFO
555 "%s:%d /dev/mem ioremap_change_attr failed %s for %Lx-%Lx\n", 457 "%s:%d /dev/mem ioremap_change_attr failed %s for %Lx-%Lx\n",
@@ -587,4 +489,3 @@ void unmap_devmem(unsigned long pfn, unsigned long size, pgprot_t vma_prot)
587 489
588 free_memtype(addr, addr + size); 490 free_memtype(addr, addr + size);
589} 491}
590
diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
new file mode 100644
index 000000000000..efa1911e20ca
--- /dev/null
+++ b/arch/x86/mm/pf_in.c
@@ -0,0 +1,489 @@
1/*
2 * Fault Injection Test harness (FI)
3 * Copyright (C) Intel Crop.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
18 * USA.
19 *
20 */
21
22/* Id: pf_in.c,v 1.1.1.1 2002/11/12 05:56:32 brlock Exp
23 * Copyright by Intel Crop., 2002
24 * Louis Zhuang (louis.zhuang@intel.com)
25 *
26 * Bjorn Steinbrink (B.Steinbrink@gmx.de), 2007
27 */
28
29#include <linux/module.h>
30#include <linux/ptrace.h> /* struct pt_regs */
31#include "pf_in.h"
32
33#ifdef __i386__
34/* IA32 Manual 3, 2-1 */
35static unsigned char prefix_codes[] = {
36 0xF0, 0xF2, 0xF3, 0x2E, 0x36, 0x3E, 0x26, 0x64,
37 0x65, 0x2E, 0x3E, 0x66, 0x67
38};
39/* IA32 Manual 3, 3-432*/
40static unsigned int reg_rop[] = {
41 0x8A, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F
42};
43static unsigned int reg_wop[] = { 0x88, 0x89 };
44static unsigned int imm_wop[] = { 0xC6, 0xC7 };
45/* IA32 Manual 3, 3-432*/
46static unsigned int rw8[] = { 0x88, 0x8A, 0xC6 };
47static unsigned int rw32[] = {
48 0x89, 0x8B, 0xC7, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F
49};
50static unsigned int mw8[] = { 0x88, 0x8A, 0xC6, 0xB60F, 0xBE0F };
51static unsigned int mw16[] = { 0xB70F, 0xBF0F };
52static unsigned int mw32[] = { 0x89, 0x8B, 0xC7 };
53static unsigned int mw64[] = {};
54#else /* not __i386__ */
55static unsigned char prefix_codes[] = {
56 0x66, 0x67, 0x2E, 0x3E, 0x26, 0x64, 0x65, 0x36,
57 0xF0, 0xF3, 0xF2,
58 /* REX Prefixes */
59 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
60 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
61};
62/* AMD64 Manual 3, Appendix A*/
63static unsigned int reg_rop[] = {
64 0x8A, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F
65};
66static unsigned int reg_wop[] = { 0x88, 0x89 };
67static unsigned int imm_wop[] = { 0xC6, 0xC7 };
68static unsigned int rw8[] = { 0xC6, 0x88, 0x8A };
69static unsigned int rw32[] = {
70 0xC7, 0x89, 0x8B, 0xB60F, 0xB70F, 0xBE0F, 0xBF0F
71};
72/* 8 bit only */
73static unsigned int mw8[] = { 0xC6, 0x88, 0x8A, 0xB60F, 0xBE0F };
74/* 16 bit only */
75static unsigned int mw16[] = { 0xB70F, 0xBF0F };
76/* 16 or 32 bit */
77static unsigned int mw32[] = { 0xC7 };
78/* 16, 32 or 64 bit */
79static unsigned int mw64[] = { 0x89, 0x8B };
80#endif /* not __i386__ */
81
82static int skip_prefix(unsigned char *addr, int *shorted, int *enlarged,
83 int *rexr)
84{
85 int i;
86 unsigned char *p = addr;
87 *shorted = 0;
88 *enlarged = 0;
89 *rexr = 0;
90
91restart:
92 for (i = 0; i < ARRAY_SIZE(prefix_codes); i++) {
93 if (*p == prefix_codes[i]) {
94 if (*p == 0x66)
95 *shorted = 1;
96#ifdef __amd64__
97 if ((*p & 0xf8) == 0x48)
98 *enlarged = 1;
99 if ((*p & 0xf4) == 0x44)
100 *rexr = 1;
101#endif
102 p++;
103 goto restart;
104 }
105 }
106
107 return (p - addr);
108}
109
110static int get_opcode(unsigned char *addr, unsigned int *opcode)
111{
112 int len;
113
114 if (*addr == 0x0F) {
115 /* 0x0F is extension instruction */
116 *opcode = *(unsigned short *)addr;
117 len = 2;
118 } else {
119 *opcode = *addr;
120 len = 1;
121 }
122
123 return len;
124}
125
126#define CHECK_OP_TYPE(opcode, array, type) \
127 for (i = 0; i < ARRAY_SIZE(array); i++) { \
128 if (array[i] == opcode) { \
129 rv = type; \
130 goto exit; \
131 } \
132 }
133
134enum reason_type get_ins_type(unsigned long ins_addr)
135{
136 unsigned int opcode;
137 unsigned char *p;
138 int shorted, enlarged, rexr;
139 int i;
140 enum reason_type rv = OTHERS;
141
142 p = (unsigned char *)ins_addr;
143 p += skip_prefix(p, &shorted, &enlarged, &rexr);
144 p += get_opcode(p, &opcode);
145
146 CHECK_OP_TYPE(opcode, reg_rop, REG_READ);
147 CHECK_OP_TYPE(opcode, reg_wop, REG_WRITE);
148 CHECK_OP_TYPE(opcode, imm_wop, IMM_WRITE);
149
150exit:
151 return rv;
152}
153#undef CHECK_OP_TYPE
154
155static unsigned int get_ins_reg_width(unsigned long ins_addr)
156{
157 unsigned int opcode;
158 unsigned char *p;
159 int i, shorted, enlarged, rexr;
160
161 p = (unsigned char *)ins_addr;
162 p += skip_prefix(p, &shorted, &enlarged, &rexr);
163 p += get_opcode(p, &opcode);
164
165 for (i = 0; i < ARRAY_SIZE(rw8); i++)
166 if (rw8[i] == opcode)
167 return 1;
168
169 for (i = 0; i < ARRAY_SIZE(rw32); i++)
170 if (rw32[i] == opcode)
171 return (shorted ? 2 : (enlarged ? 8 : 4));
172
173 printk(KERN_ERR "mmiotrace: Unknown opcode 0x%02x\n", opcode);
174 return 0;
175}
176
177unsigned int get_ins_mem_width(unsigned long ins_addr)
178{
179 unsigned int opcode;
180 unsigned char *p;
181 int i, shorted, enlarged, rexr;
182
183 p = (unsigned char *)ins_addr;
184 p += skip_prefix(p, &shorted, &enlarged, &rexr);
185 p += get_opcode(p, &opcode);
186
187 for (i = 0; i < ARRAY_SIZE(mw8); i++)
188 if (mw8[i] == opcode)
189 return 1;
190
191 for (i = 0; i < ARRAY_SIZE(mw16); i++)
192 if (mw16[i] == opcode)
193 return 2;
194
195 for (i = 0; i < ARRAY_SIZE(mw32); i++)
196 if (mw32[i] == opcode)
197 return shorted ? 2 : 4;
198
199 for (i = 0; i < ARRAY_SIZE(mw64); i++)
200 if (mw64[i] == opcode)
201 return shorted ? 2 : (enlarged ? 8 : 4);
202
203 printk(KERN_ERR "mmiotrace: Unknown opcode 0x%02x\n", opcode);
204 return 0;
205}
206
207/*
208 * Define register ident in mod/rm byte.
209 * Note: these are NOT the same as in ptrace-abi.h.
210 */
211enum {
212 arg_AL = 0,
213 arg_CL = 1,
214 arg_DL = 2,
215 arg_BL = 3,
216 arg_AH = 4,
217 arg_CH = 5,
218 arg_DH = 6,
219 arg_BH = 7,
220
221 arg_AX = 0,
222 arg_CX = 1,
223 arg_DX = 2,
224 arg_BX = 3,
225 arg_SP = 4,
226 arg_BP = 5,
227 arg_SI = 6,
228 arg_DI = 7,
229#ifdef __amd64__
230 arg_R8 = 8,
231 arg_R9 = 9,
232 arg_R10 = 10,
233 arg_R11 = 11,
234 arg_R12 = 12,
235 arg_R13 = 13,
236 arg_R14 = 14,
237 arg_R15 = 15
238#endif
239};
240
241static unsigned char *get_reg_w8(int no, struct pt_regs *regs)
242{
243 unsigned char *rv = NULL;
244
245 switch (no) {
246 case arg_AL:
247 rv = (unsigned char *)&regs->ax;
248 break;
249 case arg_BL:
250 rv = (unsigned char *)&regs->bx;
251 break;
252 case arg_CL:
253 rv = (unsigned char *)&regs->cx;
254 break;
255 case arg_DL:
256 rv = (unsigned char *)&regs->dx;
257 break;
258 case arg_AH:
259 rv = 1 + (unsigned char *)&regs->ax;
260 break;
261 case arg_BH:
262 rv = 1 + (unsigned char *)&regs->bx;
263 break;
264 case arg_CH:
265 rv = 1 + (unsigned char *)&regs->cx;
266 break;
267 case arg_DH:
268 rv = 1 + (unsigned char *)&regs->dx;
269 break;
270#ifdef __amd64__
271 case arg_R8:
272 rv = (unsigned char *)&regs->r8;
273 break;
274 case arg_R9:
275 rv = (unsigned char *)&regs->r9;
276 break;
277 case arg_R10:
278 rv = (unsigned char *)&regs->r10;
279 break;
280 case arg_R11:
281 rv = (unsigned char *)&regs->r11;
282 break;
283 case arg_R12:
284 rv = (unsigned char *)&regs->r12;
285 break;
286 case arg_R13:
287 rv = (unsigned char *)&regs->r13;
288 break;
289 case arg_R14:
290 rv = (unsigned char *)&regs->r14;
291 break;
292 case arg_R15:
293 rv = (unsigned char *)&regs->r15;
294 break;
295#endif
296 default:
297 printk(KERN_ERR "mmiotrace: Error reg no# %d\n", no);
298 break;
299 }
300 return rv;
301}
302
303static unsigned long *get_reg_w32(int no, struct pt_regs *regs)
304{
305 unsigned long *rv = NULL;
306
307 switch (no) {
308 case arg_AX:
309 rv = &regs->ax;
310 break;
311 case arg_BX:
312 rv = &regs->bx;
313 break;
314 case arg_CX:
315 rv = &regs->cx;
316 break;
317 case arg_DX:
318 rv = &regs->dx;
319 break;
320 case arg_SP:
321 rv = &regs->sp;
322 break;
323 case arg_BP:
324 rv = &regs->bp;
325 break;
326 case arg_SI:
327 rv = &regs->si;
328 break;
329 case arg_DI:
330 rv = &regs->di;
331 break;
332#ifdef __amd64__
333 case arg_R8:
334 rv = &regs->r8;
335 break;
336 case arg_R9:
337 rv = &regs->r9;
338 break;
339 case arg_R10:
340 rv = &regs->r10;
341 break;
342 case arg_R11:
343 rv = &regs->r11;
344 break;
345 case arg_R12:
346 rv = &regs->r12;
347 break;
348 case arg_R13:
349 rv = &regs->r13;
350 break;
351 case arg_R14:
352 rv = &regs->r14;
353 break;
354 case arg_R15:
355 rv = &regs->r15;
356 break;
357#endif
358 default:
359 printk(KERN_ERR "mmiotrace: Error reg no# %d\n", no);
360 }
361
362 return rv;
363}
364
365unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
366{
367 unsigned int opcode;
368 unsigned char mod_rm;
369 int reg;
370 unsigned char *p;
371 int i, shorted, enlarged, rexr;
372 unsigned long rv;
373
374 p = (unsigned char *)ins_addr;
375 p += skip_prefix(p, &shorted, &enlarged, &rexr);
376 p += get_opcode(p, &opcode);
377 for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
378 if (reg_rop[i] == opcode) {
379 rv = REG_READ;
380 goto do_work;
381 }
382
383 for (i = 0; i < ARRAY_SIZE(reg_wop); i++)
384 if (reg_wop[i] == opcode) {
385 rv = REG_WRITE;
386 goto do_work;
387 }
388
389 printk(KERN_ERR "mmiotrace: Not a register instruction, opcode "
390 "0x%02x\n", opcode);
391 goto err;
392
393do_work:
394 mod_rm = *p;
395 reg = ((mod_rm >> 3) & 0x7) | (rexr << 3);
396 switch (get_ins_reg_width(ins_addr)) {
397 case 1:
398 return *get_reg_w8(reg, regs);
399
400 case 2:
401 return *(unsigned short *)get_reg_w32(reg, regs);
402
403 case 4:
404 return *(unsigned int *)get_reg_w32(reg, regs);
405
406#ifdef __amd64__
407 case 8:
408 return *(unsigned long *)get_reg_w32(reg, regs);
409#endif
410
411 default:
412 printk(KERN_ERR "mmiotrace: Error width# %d\n", reg);
413 }
414
415err:
416 return 0;
417}
418
419unsigned long get_ins_imm_val(unsigned long ins_addr)
420{
421 unsigned int opcode;
422 unsigned char mod_rm;
423 unsigned char mod;
424 unsigned char *p;
425 int i, shorted, enlarged, rexr;
426 unsigned long rv;
427
428 p = (unsigned char *)ins_addr;
429 p += skip_prefix(p, &shorted, &enlarged, &rexr);
430 p += get_opcode(p, &opcode);
431 for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
432 if (imm_wop[i] == opcode) {
433 rv = IMM_WRITE;
434 goto do_work;
435 }
436
437 printk(KERN_ERR "mmiotrace: Not an immediate instruction, opcode "
438 "0x%02x\n", opcode);
439 goto err;
440
441do_work:
442 mod_rm = *p;
443 mod = mod_rm >> 6;
444 p++;
445 switch (mod) {
446 case 0:
447 /* if r/m is 5 we have a 32 disp (IA32 Manual 3, Table 2-2) */
448 /* AMD64: XXX Check for address size prefix? */
449 if ((mod_rm & 0x7) == 0x5)
450 p += 4;
451 break;
452
453 case 1:
454 p += 1;
455 break;
456
457 case 2:
458 p += 4;
459 break;
460
461 case 3:
462 default:
463 printk(KERN_ERR "mmiotrace: not a memory access instruction "
464 "at 0x%lx, rm_mod=0x%02x\n",
465 ins_addr, mod_rm);
466 }
467
468 switch (get_ins_reg_width(ins_addr)) {
469 case 1:
470 return *(unsigned char *)p;
471
472 case 2:
473 return *(unsigned short *)p;
474
475 case 4:
476 return *(unsigned int *)p;
477
478#ifdef __amd64__
479 case 8:
480 return *(unsigned long *)p;
481#endif
482
483 default:
484 printk(KERN_ERR "mmiotrace: Error: width.\n");
485 }
486
487err:
488 return 0;
489}
diff --git a/arch/x86/mm/pf_in.h b/arch/x86/mm/pf_in.h
new file mode 100644
index 000000000000..e05341a51a27
--- /dev/null
+++ b/arch/x86/mm/pf_in.h
@@ -0,0 +1,39 @@
1/*
2 * Fault Injection Test harness (FI)
3 * Copyright (C) Intel Crop.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
18 * USA.
19 *
20 */
21
22#ifndef __PF_H_
23#define __PF_H_
24
25enum reason_type {
26 NOT_ME, /* page fault is not in regions */
27 NOTHING, /* access others point in regions */
28 REG_READ, /* read from addr to reg */
29 REG_WRITE, /* write from reg to addr */
30 IMM_WRITE, /* write from imm to addr */
31 OTHERS /* Other instructions can not intercept */
32};
33
34enum reason_type get_ins_type(unsigned long ins_addr);
35unsigned int get_ins_mem_width(unsigned long ins_addr);
36unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs);
37unsigned long get_ins_imm_val(unsigned long ins_addr);
38
39#endif /* __PF_H_ */
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 50159764f694..557b2abceef8 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -2,6 +2,7 @@
2#include <asm/pgalloc.h> 2#include <asm/pgalloc.h>
3#include <asm/pgtable.h> 3#include <asm/pgtable.h>
4#include <asm/tlb.h> 4#include <asm/tlb.h>
5#include <asm/fixmap.h>
5 6
6pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) 7pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
7{ 8{
@@ -65,12 +66,6 @@ static inline void pgd_list_del(pgd_t *pgd)
65static void pgd_ctor(void *p) 66static void pgd_ctor(void *p)
66{ 67{
67 pgd_t *pgd = p; 68 pgd_t *pgd = p;
68 unsigned long flags;
69
70 /* Clear usermode parts of PGD */
71 memset(pgd, 0, KERNEL_PGD_BOUNDARY*sizeof(pgd_t));
72
73 spin_lock_irqsave(&pgd_lock, flags);
74 69
75 /* If the pgd points to a shared pagetable level (either the 70 /* If the pgd points to a shared pagetable level (either the
76 ptes in non-PAE, or shared PMD in PAE), then just copy the 71 ptes in non-PAE, or shared PMD in PAE), then just copy the
@@ -90,8 +85,6 @@ static void pgd_ctor(void *p)
90 /* list required to sync kernel mapping updates */ 85 /* list required to sync kernel mapping updates */
91 if (!SHARED_KERNEL_PMD) 86 if (!SHARED_KERNEL_PMD)
92 pgd_list_add(pgd); 87 pgd_list_add(pgd);
93
94 spin_unlock_irqrestore(&pgd_lock, flags);
95} 88}
96 89
97static void pgd_dtor(void *pgd) 90static void pgd_dtor(void *pgd)
@@ -119,6 +112,72 @@ static void pgd_dtor(void *pgd)
119 112
120#ifdef CONFIG_X86_PAE 113#ifdef CONFIG_X86_PAE
121/* 114/*
115 * In PAE mode, we need to do a cr3 reload (=tlb flush) when
116 * updating the top-level pagetable entries to guarantee the
117 * processor notices the update. Since this is expensive, and
118 * all 4 top-level entries are used almost immediately in a
119 * new process's life, we just pre-populate them here.
120 *
121 * Also, if we're in a paravirt environment where the kernel pmd is
122 * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
123 * and initialize the kernel pmds here.
124 */
125#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD
126
127void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
128{
129 paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
130
131 /* Note: almost everything apart from _PAGE_PRESENT is
132 reserved at the pmd (PDPT) level. */
133 set_pud(pudp, __pud(__pa(pmd) | _PAGE_PRESENT));
134
135 /*
136 * According to Intel App note "TLBs, Paging-Structure Caches,
137 * and Their Invalidation", April 2007, document 317080-001,
138 * section 8.1: in PAE mode we explicitly have to flush the
139 * TLB via cr3 if the top-level pgd is changed...
140 */
141 if (mm == current->active_mm)
142 write_cr3(read_cr3());
143}
144#else /* !CONFIG_X86_PAE */
145
146/* No need to prepopulate any pagetable entries in non-PAE modes. */
147#define PREALLOCATED_PMDS 0
148
149#endif /* CONFIG_X86_PAE */
150
151static void free_pmds(pmd_t *pmds[])
152{
153 int i;
154
155 for(i = 0; i < PREALLOCATED_PMDS; i++)
156 if (pmds[i])
157 free_page((unsigned long)pmds[i]);
158}
159
160static int preallocate_pmds(pmd_t *pmds[])
161{
162 int i;
163 bool failed = false;
164
165 for(i = 0; i < PREALLOCATED_PMDS; i++) {
166 pmd_t *pmd = (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
167 if (pmd == NULL)
168 failed = true;
169 pmds[i] = pmd;
170 }
171
172 if (failed) {
173 free_pmds(pmds);
174 return -ENOMEM;
175 }
176
177 return 0;
178}
179
180/*
122 * Mop up any pmd pages which may still be attached to the pgd. 181 * Mop up any pmd pages which may still be attached to the pgd.
123 * Normally they will be freed by munmap/exit_mmap, but any pmd we 182 * Normally they will be freed by munmap/exit_mmap, but any pmd we
124 * preallocate which never got a corresponding vma will need to be 183 * preallocate which never got a corresponding vma will need to be
@@ -128,7 +187,7 @@ static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
128{ 187{
129 int i; 188 int i;
130 189
131 for(i = 0; i < UNSHARED_PTRS_PER_PGD; i++) { 190 for(i = 0; i < PREALLOCATED_PMDS; i++) {
132 pgd_t pgd = pgdp[i]; 191 pgd_t pgd = pgdp[i];
133 192
134 if (pgd_val(pgd) != 0) { 193 if (pgd_val(pgd) != 0) {
@@ -142,32 +201,17 @@ static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
142 } 201 }
143} 202}
144 203
145/* 204static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
146 * In PAE mode, we need to do a cr3 reload (=tlb flush) when
147 * updating the top-level pagetable entries to guarantee the
148 * processor notices the update. Since this is expensive, and
149 * all 4 top-level entries are used almost immediately in a
150 * new process's life, we just pre-populate them here.
151 *
152 * Also, if we're in a paravirt environment where the kernel pmd is
153 * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
154 * and initialize the kernel pmds here.
155 */
156static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
157{ 205{
158 pud_t *pud; 206 pud_t *pud;
159 unsigned long addr; 207 unsigned long addr;
160 int i; 208 int i;
161 209
162 pud = pud_offset(pgd, 0); 210 pud = pud_offset(pgd, 0);
163 for (addr = i = 0; i < UNSHARED_PTRS_PER_PGD;
164 i++, pud++, addr += PUD_SIZE) {
165 pmd_t *pmd = pmd_alloc_one(mm, addr);
166 211
167 if (!pmd) { 212 for (addr = i = 0; i < PREALLOCATED_PMDS;
168 pgd_mop_up_pmds(mm, pgd); 213 i++, pud++, addr += PUD_SIZE) {
169 return 0; 214 pmd_t *pmd = pmds[i];
170 }
171 215
172 if (i >= KERNEL_PGD_BOUNDARY) 216 if (i >= KERNEL_PGD_BOUNDARY)
173 memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]), 217 memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
@@ -175,61 +219,54 @@ static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
175 219
176 pud_populate(mm, pud, pmd); 220 pud_populate(mm, pud, pmd);
177 } 221 }
178
179 return 1;
180} 222}
181 223
182void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) 224pgd_t *pgd_alloc(struct mm_struct *mm)
183{ 225{
184 paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT); 226 pgd_t *pgd;
227 pmd_t *pmds[PREALLOCATED_PMDS];
228 unsigned long flags;
185 229
186 /* Note: almost everything apart from _PAGE_PRESENT is 230 pgd = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
187 reserved at the pmd (PDPT) level. */
188 set_pud(pudp, __pud(__pa(pmd) | _PAGE_PRESENT));
189 231
190 /* 232 if (pgd == NULL)
191 * According to Intel App note "TLBs, Paging-Structure Caches, 233 goto out;
192 * and Their Invalidation", April 2007, document 317080-001,
193 * section 8.1: in PAE mode we explicitly have to flush the
194 * TLB via cr3 if the top-level pgd is changed...
195 */
196 if (mm == current->active_mm)
197 write_cr3(read_cr3());
198}
199#else /* !CONFIG_X86_PAE */
200/* No need to prepopulate any pagetable entries in non-PAE modes. */
201static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd)
202{
203 return 1;
204}
205 234
206static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgd) 235 mm->pgd = pgd;
207{
208}
209#endif /* CONFIG_X86_PAE */
210 236
211pgd_t *pgd_alloc(struct mm_struct *mm) 237 if (preallocate_pmds(pmds) != 0)
212{ 238 goto out_free_pgd;
213 pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
214 239
215 /* so that alloc_pmd can use it */ 240 if (paravirt_pgd_alloc(mm) != 0)
216 mm->pgd = pgd; 241 goto out_free_pmds;
217 if (pgd)
218 pgd_ctor(pgd);
219 242
220 if (pgd && !pgd_prepopulate_pmd(mm, pgd)) { 243 /*
221 pgd_dtor(pgd); 244 * Make sure that pre-populating the pmds is atomic with
222 free_page((unsigned long)pgd); 245 * respect to anything walking the pgd_list, so that they
223 pgd = NULL; 246 * never see a partially populated pgd.
224 } 247 */
248 spin_lock_irqsave(&pgd_lock, flags);
249
250 pgd_ctor(pgd);
251 pgd_prepopulate_pmd(mm, pgd, pmds);
252
253 spin_unlock_irqrestore(&pgd_lock, flags);
225 254
226 return pgd; 255 return pgd;
256
257out_free_pmds:
258 free_pmds(pmds);
259out_free_pgd:
260 free_page((unsigned long)pgd);
261out:
262 return NULL;
227} 263}
228 264
229void pgd_free(struct mm_struct *mm, pgd_t *pgd) 265void pgd_free(struct mm_struct *mm, pgd_t *pgd)
230{ 266{
231 pgd_mop_up_pmds(mm, pgd); 267 pgd_mop_up_pmds(mm, pgd);
232 pgd_dtor(pgd); 268 pgd_dtor(pgd);
269 paravirt_pgd_free(mm, pgd);
233 free_page((unsigned long)pgd); 270 free_page((unsigned long)pgd);
234} 271}
235 272
@@ -255,7 +292,7 @@ int ptep_test_and_clear_young(struct vm_area_struct *vma,
255 292
256 if (pte_young(*ptep)) 293 if (pte_young(*ptep))
257 ret = test_and_clear_bit(_PAGE_BIT_ACCESSED, 294 ret = test_and_clear_bit(_PAGE_BIT_ACCESSED,
258 &ptep->pte); 295 (unsigned long *) &ptep->pte);
259 296
260 if (ret) 297 if (ret)
261 pte_update(vma->vm_mm, addr, ptep); 298 pte_update(vma->vm_mm, addr, ptep);
@@ -274,3 +311,22 @@ int ptep_clear_flush_young(struct vm_area_struct *vma,
274 311
275 return young; 312 return young;
276} 313}
314
315int fixmaps_set;
316
317void __native_set_fixmap(enum fixed_addresses idx, pte_t pte)
318{
319 unsigned long address = __fix_to_virt(idx);
320
321 if (idx >= __end_of_fixed_addresses) {
322 BUG();
323 return;
324 }
325 set_pte_vaddr(address, pte);
326 fixmaps_set++;
327}
328
329void native_set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
330{
331 __native_set_fixmap(idx, pfn_pte(phys >> PAGE_SHIFT, flags));
332}
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 369cf065b6a4..b4becbf8c570 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -71,7 +71,7 @@ void show_mem(void)
71 * Associate a virtual page frame with a given physical page frame 71 * Associate a virtual page frame with a given physical page frame
72 * and protection flags for that frame. 72 * and protection flags for that frame.
73 */ 73 */
74static void set_pte_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags) 74void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
75{ 75{
76 pgd_t *pgd; 76 pgd_t *pgd;
77 pud_t *pud; 77 pud_t *pud;
@@ -94,8 +94,8 @@ static void set_pte_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
94 return; 94 return;
95 } 95 }
96 pte = pte_offset_kernel(pmd, vaddr); 96 pte = pte_offset_kernel(pmd, vaddr);
97 if (pgprot_val(flags)) 97 if (pte_val(pteval))
98 set_pte_present(&init_mm, vaddr, pte, pfn_pte(pfn, flags)); 98 set_pte_present(&init_mm, vaddr, pte, pteval);
99 else 99 else
100 pte_clear(&init_mm, vaddr, pte); 100 pte_clear(&init_mm, vaddr, pte);
101 101
@@ -141,22 +141,9 @@ void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
141 __flush_tlb_one(vaddr); 141 __flush_tlb_one(vaddr);
142} 142}
143 143
144static int fixmaps;
145unsigned long __FIXADDR_TOP = 0xfffff000; 144unsigned long __FIXADDR_TOP = 0xfffff000;
146EXPORT_SYMBOL(__FIXADDR_TOP); 145EXPORT_SYMBOL(__FIXADDR_TOP);
147 146
148void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
149{
150 unsigned long address = __fix_to_virt(idx);
151
152 if (idx >= __end_of_fixed_addresses) {
153 BUG();
154 return;
155 }
156 set_pte_pfn(address, phys >> PAGE_SHIFT, flags);
157 fixmaps++;
158}
159
160/** 147/**
161 * reserve_top_address - reserves a hole in the top of kernel address space 148 * reserve_top_address - reserves a hole in the top of kernel address space
162 * @reserve - size of hole to reserve 149 * @reserve - size of hole to reserve
@@ -164,11 +151,44 @@ void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
164 * Can be used to relocate the fixmap area and poke a hole in the top 151 * Can be used to relocate the fixmap area and poke a hole in the top
165 * of kernel address space to make room for a hypervisor. 152 * of kernel address space to make room for a hypervisor.
166 */ 153 */
167void reserve_top_address(unsigned long reserve) 154void __init reserve_top_address(unsigned long reserve)
168{ 155{
169 BUG_ON(fixmaps > 0); 156 BUG_ON(fixmaps_set > 0);
170 printk(KERN_INFO "Reserving virtual address space above 0x%08x\n", 157 printk(KERN_INFO "Reserving virtual address space above 0x%08x\n",
171 (int)-reserve); 158 (int)-reserve);
172 __FIXADDR_TOP = -reserve - PAGE_SIZE; 159 __FIXADDR_TOP = -reserve - PAGE_SIZE;
173 __VMALLOC_RESERVE += reserve; 160 __VMALLOC_RESERVE += reserve;
174} 161}
162
163/*
164 * vmalloc=size forces the vmalloc area to be exactly 'size'
165 * bytes. This can be used to increase (or decrease) the
166 * vmalloc area - the default is 128m.
167 */
168static int __init parse_vmalloc(char *arg)
169{
170 if (!arg)
171 return -EINVAL;
172
173 __VMALLOC_RESERVE = memparse(arg, &arg);
174 return 0;
175}
176early_param("vmalloc", parse_vmalloc);
177
178/*
179 * reservetop=size reserves a hole at the top of the kernel address space which
180 * a hypervisor can load into later. Needed for dynamically loaded hypervisors,
181 * so relocating the fixmap can be done before paging initialization.
182 */
183static int __init parse_reservetop(char *arg)
184{
185 unsigned long address;
186
187 if (!arg)
188 return -EINVAL;
189
190 address = memparse(arg, &arg);
191 reserve_top_address(address);
192 return 0;
193}
194early_param("reservetop", parse_reservetop);
diff --git a/arch/x86/kernel/srat_32.c b/arch/x86/mm/srat_32.c
index 70e4a374b4e8..1eb2973a301c 100644
--- a/arch/x86/kernel/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -31,6 +31,7 @@
31#include <asm/srat.h> 31#include <asm/srat.h>
32#include <asm/topology.h> 32#include <asm/topology.h>
33#include <asm/smp.h> 33#include <asm/smp.h>
34#include <asm/e820.h>
34 35
35/* 36/*
36 * proximity macros and definitions 37 * proximity macros and definitions
@@ -41,7 +42,7 @@
41#define BMAP_TEST(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] & (1 << NODE_ARRAY_OFFSET(bit))) 42#define BMAP_TEST(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] & (1 << NODE_ARRAY_OFFSET(bit)))
42/* bitmap length; _PXM is at most 255 */ 43/* bitmap length; _PXM is at most 255 */
43#define PXM_BITMAP_LEN (MAX_PXM_DOMAINS / 8) 44#define PXM_BITMAP_LEN (MAX_PXM_DOMAINS / 8)
44static u8 pxm_bitmap[PXM_BITMAP_LEN]; /* bitmap of proximity domains */ 45static u8 __initdata pxm_bitmap[PXM_BITMAP_LEN]; /* bitmap of proximity domains */
45 46
46#define MAX_CHUNKS_PER_NODE 3 47#define MAX_CHUNKS_PER_NODE 3
47#define MAXCHUNKS (MAX_CHUNKS_PER_NODE * MAX_NUMNODES) 48#define MAXCHUNKS (MAX_CHUNKS_PER_NODE * MAX_NUMNODES)
@@ -52,16 +53,37 @@ struct node_memory_chunk_s {
52 u8 nid; // which cnode contains this chunk? 53 u8 nid; // which cnode contains this chunk?
53 u8 bank; // which mem bank on this node 54 u8 bank; // which mem bank on this node
54}; 55};
55static struct node_memory_chunk_s node_memory_chunk[MAXCHUNKS]; 56static struct node_memory_chunk_s __initdata node_memory_chunk[MAXCHUNKS];
56 57
57static int num_memory_chunks; /* total number of memory chunks */ 58static int __initdata num_memory_chunks; /* total number of memory chunks */
58static u8 __initdata apicid_to_pxm[MAX_APICID]; 59static u8 __initdata apicid_to_pxm[MAX_APICID];
59 60
61int numa_off __initdata;
62int acpi_numa __initdata;
63
64static __init void bad_srat(void)
65{
66 printk(KERN_ERR "SRAT: SRAT not used.\n");
67 acpi_numa = -1;
68 num_memory_chunks = 0;
69}
70
71static __init inline int srat_disabled(void)
72{
73 return numa_off || acpi_numa < 0;
74}
75
60/* Identify CPU proximity domains */ 76/* Identify CPU proximity domains */
61static void __init parse_cpu_affinity_structure(char *p) 77void __init
78acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *cpu_affinity)
62{ 79{
63 struct acpi_srat_cpu_affinity *cpu_affinity = 80 if (srat_disabled())
64 (struct acpi_srat_cpu_affinity *) p; 81 return;
82 if (cpu_affinity->header.length !=
83 sizeof(struct acpi_srat_cpu_affinity)) {
84 bad_srat();
85 return;
86 }
65 87
66 if ((cpu_affinity->flags & ACPI_SRAT_CPU_ENABLED) == 0) 88 if ((cpu_affinity->flags & ACPI_SRAT_CPU_ENABLED) == 0)
67 return; /* empty entry */ 89 return; /* empty entry */
@@ -71,7 +93,7 @@ static void __init parse_cpu_affinity_structure(char *p)
71 93
72 apicid_to_pxm[cpu_affinity->apic_id] = cpu_affinity->proximity_domain_lo; 94 apicid_to_pxm[cpu_affinity->apic_id] = cpu_affinity->proximity_domain_lo;
73 95
74 printk("CPU 0x%02X in proximity domain 0x%02X\n", 96 printk(KERN_DEBUG "CPU %02x in proximity domain %02x\n",
75 cpu_affinity->apic_id, cpu_affinity->proximity_domain_lo); 97 cpu_affinity->apic_id, cpu_affinity->proximity_domain_lo);
76} 98}
77 99
@@ -79,14 +101,21 @@ static void __init parse_cpu_affinity_structure(char *p)
79 * Identify memory proximity domains and hot-remove capabilities. 101 * Identify memory proximity domains and hot-remove capabilities.
80 * Fill node memory chunk list structure. 102 * Fill node memory chunk list structure.
81 */ 103 */
82static void __init parse_memory_affinity_structure (char *sratp) 104void __init
105acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *memory_affinity)
83{ 106{
84 unsigned long long paddr, size; 107 unsigned long long paddr, size;
85 unsigned long start_pfn, end_pfn; 108 unsigned long start_pfn, end_pfn;
86 u8 pxm; 109 u8 pxm;
87 struct node_memory_chunk_s *p, *q, *pend; 110 struct node_memory_chunk_s *p, *q, *pend;
88 struct acpi_srat_mem_affinity *memory_affinity = 111
89 (struct acpi_srat_mem_affinity *) sratp; 112 if (srat_disabled())
113 return;
114 if (memory_affinity->header.length !=
115 sizeof(struct acpi_srat_mem_affinity)) {
116 bad_srat();
117 return;
118 }
90 119
91 if ((memory_affinity->flags & ACPI_SRAT_MEM_ENABLED) == 0) 120 if ((memory_affinity->flags & ACPI_SRAT_MEM_ENABLED) == 0)
92 return; /* empty entry */ 121 return; /* empty entry */
@@ -105,7 +134,8 @@ static void __init parse_memory_affinity_structure (char *sratp)
105 134
106 135
107 if (num_memory_chunks >= MAXCHUNKS) { 136 if (num_memory_chunks >= MAXCHUNKS) {
108 printk("Too many mem chunks in SRAT. Ignoring %lld MBytes at %llx\n", 137 printk(KERN_WARNING "Too many mem chunks in SRAT."
138 " Ignoring %lld MBytes at %llx\n",
109 size/(1024*1024), paddr); 139 size/(1024*1024), paddr);
110 return; 140 return;
111 } 141 }
@@ -126,14 +156,22 @@ static void __init parse_memory_affinity_structure (char *sratp)
126 156
127 num_memory_chunks++; 157 num_memory_chunks++;
128 158
129 printk("Memory range 0x%lX to 0x%lX (type 0x%X) in proximity domain 0x%02X %s\n", 159 printk(KERN_DEBUG "Memory range %08lx to %08lx"
160 " in proximity domain %02x %s\n",
130 start_pfn, end_pfn, 161 start_pfn, end_pfn,
131 memory_affinity->memory_type,
132 pxm, 162 pxm,
133 ((memory_affinity->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ? 163 ((memory_affinity->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ?
134 "enabled and removable" : "enabled" ) ); 164 "enabled and removable" : "enabled" ) );
135} 165}
136 166
167/* Callback for SLIT parsing */
168void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
169{
170}
171
172void acpi_numa_arch_fixup(void)
173{
174}
137/* 175/*
138 * The SRAT table always lists ascending addresses, so can always 176 * The SRAT table always lists ascending addresses, so can always
139 * assume that the first "start" address that you see is the real 177 * assume that the first "start" address that you see is the real
@@ -149,7 +187,7 @@ static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_c
149 * *possible* memory hotplug areas the same as normal RAM. 187 * *possible* memory hotplug areas the same as normal RAM.
150 */ 188 */
151 if (memory_chunk->start_pfn >= max_pfn) { 189 if (memory_chunk->start_pfn >= max_pfn) {
152 printk (KERN_INFO "Ignoring SRAT pfns: 0x%08lx -> %08lx\n", 190 printk(KERN_INFO "Ignoring SRAT pfns: %08lx - %08lx\n",
153 memory_chunk->start_pfn, memory_chunk->end_pfn); 191 memory_chunk->start_pfn, memory_chunk->end_pfn);
154 return; 192 return;
155 } 193 }
@@ -166,42 +204,17 @@ static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_c
166 node_end_pfn[nid] = memory_chunk->end_pfn; 204 node_end_pfn[nid] = memory_chunk->end_pfn;
167} 205}
168 206
169/* Parse the ACPI Static Resource Affinity Table */ 207int __init get_memcfg_from_srat(void)
170static int __init acpi20_parse_srat(struct acpi_table_srat *sratp)
171{ 208{
172 u8 *start, *end, *p;
173 int i, j, nid; 209 int i, j, nid;
174 210
175 start = (u8 *)(&(sratp->reserved) + 1); /* skip header */
176 p = start;
177 end = (u8 *)sratp + sratp->header.length;
178 211
179 memset(pxm_bitmap, 0, sizeof(pxm_bitmap)); /* init proximity domain bitmap */ 212 if (srat_disabled())
180 memset(node_memory_chunk, 0, sizeof(node_memory_chunk)); 213 goto out_fail;
181
182 num_memory_chunks = 0;
183 while (p < end) {
184 switch (*p) {
185 case ACPI_SRAT_TYPE_CPU_AFFINITY:
186 parse_cpu_affinity_structure(p);
187 break;
188 case ACPI_SRAT_TYPE_MEMORY_AFFINITY:
189 parse_memory_affinity_structure(p);
190 break;
191 default:
192 printk("ACPI 2.0 SRAT: unknown entry skipped: type=0x%02X, len=%d\n", p[0], p[1]);
193 break;
194 }
195 p += p[1];
196 if (p[1] == 0) {
197 printk("acpi20_parse_srat: Entry length value is zero;"
198 " can't parse any further!\n");
199 break;
200 }
201 }
202 214
203 if (num_memory_chunks == 0) { 215 if (num_memory_chunks == 0) {
204 printk("could not finy any ACPI SRAT memory areas.\n"); 216 printk(KERN_WARNING
217 "could not finy any ACPI SRAT memory areas.\n");
205 goto out_fail; 218 goto out_fail;
206 } 219 }
207 220
@@ -228,131 +241,39 @@ static int __init acpi20_parse_srat(struct acpi_table_srat *sratp)
228 for (i = 0; i < num_memory_chunks; i++) 241 for (i = 0; i < num_memory_chunks; i++)
229 node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm); 242 node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm);
230 243
231 printk("pxm bitmap: "); 244 printk(KERN_DEBUG "pxm bitmap: ");
232 for (i = 0; i < sizeof(pxm_bitmap); i++) { 245 for (i = 0; i < sizeof(pxm_bitmap); i++) {
233 printk("%02X ", pxm_bitmap[i]); 246 printk(KERN_CONT "%02x ", pxm_bitmap[i]);
234 } 247 }
235 printk("\n"); 248 printk(KERN_CONT "\n");
236 printk("Number of logical nodes in system = %d\n", num_online_nodes()); 249 printk(KERN_DEBUG "Number of logical nodes in system = %d\n",
237 printk("Number of memory chunks in system = %d\n", num_memory_chunks); 250 num_online_nodes());
251 printk(KERN_DEBUG "Number of memory chunks in system = %d\n",
252 num_memory_chunks);
238 253
239 for (i = 0; i < MAX_APICID; i++) 254 for (i = 0; i < MAX_APICID; i++)
240 apicid_2_node[i] = pxm_to_node(apicid_to_pxm[i]); 255 apicid_2_node[i] = pxm_to_node(apicid_to_pxm[i]);
241 256
242 for (j = 0; j < num_memory_chunks; j++){ 257 for (j = 0; j < num_memory_chunks; j++){
243 struct node_memory_chunk_s * chunk = &node_memory_chunk[j]; 258 struct node_memory_chunk_s * chunk = &node_memory_chunk[j];
244 printk("chunk %d nid %d start_pfn %08lx end_pfn %08lx\n", 259 printk(KERN_DEBUG
260 "chunk %d nid %d start_pfn %08lx end_pfn %08lx\n",
245 j, chunk->nid, chunk->start_pfn, chunk->end_pfn); 261 j, chunk->nid, chunk->start_pfn, chunk->end_pfn);
246 node_read_chunk(chunk->nid, chunk); 262 node_read_chunk(chunk->nid, chunk);
247 add_active_range(chunk->nid, chunk->start_pfn, chunk->end_pfn); 263 e820_register_active_regions(chunk->nid, chunk->start_pfn,
264 min(chunk->end_pfn, max_pfn));
248 } 265 }
249 266
250 for_each_online_node(nid) { 267 for_each_online_node(nid) {
251 unsigned long start = node_start_pfn[nid]; 268 unsigned long start = node_start_pfn[nid];
252 unsigned long end = node_end_pfn[nid]; 269 unsigned long end = min(node_end_pfn[nid], max_pfn);
253 270
254 memory_present(nid, start, end); 271 memory_present(nid, start, end);
255 node_remap_size[nid] = node_memmap_size_bytes(nid, start, end); 272 node_remap_size[nid] = node_memmap_size_bytes(nid, start, end);
256 } 273 }
257 return 1; 274 return 1;
258out_fail: 275out_fail:
259 return 0; 276 printk(KERN_ERR "failed to get NUMA memory information from SRAT"
260} 277 " table\n");
261
262struct acpi_static_rsdt {
263 struct acpi_table_rsdt table;
264 u32 padding[7]; /* Allow for 7 more table entries */
265};
266
267int __init get_memcfg_from_srat(void)
268{
269 struct acpi_table_header *header = NULL;
270 struct acpi_table_rsdp *rsdp = NULL;
271 struct acpi_table_rsdt *rsdt = NULL;
272 acpi_native_uint rsdp_address = 0;
273 struct acpi_static_rsdt saved_rsdt;
274 int tables = 0;
275 int i = 0;
276
277 rsdp_address = acpi_os_get_root_pointer();
278 if (!rsdp_address) {
279 printk("%s: System description tables not found\n",
280 __func__);
281 goto out_err;
282 }
283
284 printk("%s: assigning address to rsdp\n", __func__);
285 rsdp = (struct acpi_table_rsdp *)(u32)rsdp_address;
286 if (!rsdp) {
287 printk("%s: Didn't find ACPI root!\n", __func__);
288 goto out_err;
289 }
290
291 printk(KERN_INFO "%.8s v%d [%.6s]\n", rsdp->signature, rsdp->revision,
292 rsdp->oem_id);
293
294 if (strncmp(rsdp->signature, ACPI_SIG_RSDP,strlen(ACPI_SIG_RSDP))) {
295 printk(KERN_WARNING "%s: RSDP table signature incorrect\n", __func__);
296 goto out_err;
297 }
298
299 rsdt = (struct acpi_table_rsdt *)
300 early_ioremap(rsdp->rsdt_physical_address, sizeof(struct acpi_table_rsdt));
301
302 if (!rsdt) {
303 printk(KERN_WARNING
304 "%s: ACPI: Invalid root system description tables (RSDT)\n",
305 __func__);
306 goto out_err;
307 }
308
309 header = &rsdt->header;
310
311 if (strncmp(header->signature, ACPI_SIG_RSDT, strlen(ACPI_SIG_RSDT))) {
312 printk(KERN_WARNING "ACPI: RSDT signature incorrect\n");
313 goto out_err;
314 }
315
316 /*
317 * The number of tables is computed by taking the
318 * size of all entries (header size minus total
319 * size of RSDT) divided by the size of each entry
320 * (4-byte table pointers).
321 */
322 tables = (header->length - sizeof(struct acpi_table_header)) / 4;
323
324 if (!tables)
325 goto out_err;
326
327 memcpy(&saved_rsdt, rsdt, sizeof(saved_rsdt));
328
329 if (saved_rsdt.table.header.length > sizeof(saved_rsdt)) {
330 printk(KERN_WARNING "ACPI: Too big length in RSDT: %d\n",
331 saved_rsdt.table.header.length);
332 goto out_err;
333 }
334
335 printk("Begin SRAT table scan....\n");
336
337 for (i = 0; i < tables; i++) {
338 /* Map in header, then map in full table length. */
339 header = (struct acpi_table_header *)
340 early_ioremap(saved_rsdt.table.table_offset_entry[i], sizeof(struct acpi_table_header));
341 if (!header)
342 break;
343 header = (struct acpi_table_header *)
344 early_ioremap(saved_rsdt.table.table_offset_entry[i], header->length);
345 if (!header)
346 break;
347
348 if (strncmp((char *) &header->signature, ACPI_SIG_SRAT, 4))
349 continue;
350
351 /* we've found the srat table. don't need to look at any more tables */
352 return acpi20_parse_srat((struct acpi_table_srat *)header);
353 }
354out_err:
355 remove_all_active_ranges();
356 printk("failed to get NUMA memory information from SRAT table\n");
357 return 0; 278 return 0;
358} 279}
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 3890234e5b26..1b4763e26ea9 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -97,37 +97,22 @@ static __init inline int srat_disabled(void)
97 return numa_off || acpi_numa < 0; 97 return numa_off || acpi_numa < 0;
98} 98}
99 99
100/*
101 * A lot of BIOS fill in 10 (= no distance) everywhere. This messes
102 * up the NUMA heuristics which wants the local node to have a smaller
103 * distance than the others.
104 * Do some quick checks here and only use the SLIT if it passes.
105 */
106static __init int slit_valid(struct acpi_table_slit *slit)
107{
108 int i, j;
109 int d = slit->locality_count;
110 for (i = 0; i < d; i++) {
111 for (j = 0; j < d; j++) {
112 u8 val = slit->entry[d*i + j];
113 if (i == j) {
114 if (val != LOCAL_DISTANCE)
115 return 0;
116 } else if (val <= LOCAL_DISTANCE)
117 return 0;
118 }
119 }
120 return 1;
121}
122
123/* Callback for SLIT parsing */ 100/* Callback for SLIT parsing */
124void __init acpi_numa_slit_init(struct acpi_table_slit *slit) 101void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
125{ 102{
126 if (!slit_valid(slit)) { 103 unsigned length;
127 printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n"); 104 unsigned long phys;
128 return; 105
129 } 106 length = slit->header.length;
130 acpi_slit = slit; 107 phys = find_e820_area(0, max_pfn_mapped<<PAGE_SHIFT, length,
108 PAGE_SIZE);
109
110 if (phys == -1L)
111 panic(" Can not save slit!\n");
112
113 acpi_slit = __va(phys);
114 memcpy(acpi_slit, slit, length);
115 reserve_early(phys, phys + length, "ACPI SLIT");
131} 116}
132 117
133/* Callback for Proximity Domain -> LAPIC mapping */ 118/* Callback for Proximity Domain -> LAPIC mapping */
@@ -326,7 +311,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
326 pxmram = 0; 311 pxmram = 0;
327 } 312 }
328 313
329 e820ram = end_pfn - absent_pages_in_range(0, end_pfn); 314 e820ram = max_pfn - absent_pages_in_range(0, max_pfn);
330 /* We seem to lose 3 pages somewhere. Allow a bit of slack. */ 315 /* We seem to lose 3 pages somewhere. Allow a bit of slack. */
331 if ((long)(e820ram - pxmram) >= 1*1024*1024) { 316 if ((long)(e820ram - pxmram) >= 1*1024*1024) {
332 printk(KERN_ERR 317 printk(KERN_ERR
@@ -403,7 +388,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
403 if (node == NUMA_NO_NODE) 388 if (node == NUMA_NO_NODE)
404 continue; 389 continue;
405 if (!node_isset(node, node_possible_map)) 390 if (!node_isset(node, node_possible_map))
406 numa_set_node(i, NUMA_NO_NODE); 391 numa_clear_node(i);
407 } 392 }
408 numa_init_array(); 393 numa_init_array();
409 return 0; 394 return 0;
@@ -522,6 +507,7 @@ int __node_distance(int a, int b)
522 507
523EXPORT_SYMBOL(__node_distance); 508EXPORT_SYMBOL(__node_distance);
524 509
510#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) || defined(CONFIG_ACPI_HOTPLUG_MEMORY)
525int memory_add_physaddr_to_nid(u64 start) 511int memory_add_physaddr_to_nid(u64 start)
526{ 512{
527 int i, ret = 0; 513 int i, ret = 0;
@@ -533,4 +519,4 @@ int memory_add_physaddr_to_nid(u64 start)
533 return ret; 519 return ret;
534} 520}
535EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); 521EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
536 522#endif
diff --git a/arch/x86/mm/testmmiotrace.c b/arch/x86/mm/testmmiotrace.c
new file mode 100644
index 000000000000..d877c5b423ef
--- /dev/null
+++ b/arch/x86/mm/testmmiotrace.c
@@ -0,0 +1,71 @@
1/*
2 * Written by Pekka Paalanen, 2008 <pq@iki.fi>
3 */
4#include <linux/module.h>
5#include <linux/io.h>
6
7#define MODULE_NAME "testmmiotrace"
8
9static unsigned long mmio_address;
10module_param(mmio_address, ulong, 0);
11MODULE_PARM_DESC(mmio_address, "Start address of the mapping of 16 kB.");
12
13static void do_write_test(void __iomem *p)
14{
15 unsigned int i;
16 for (i = 0; i < 256; i++)
17 iowrite8(i, p + i);
18 for (i = 1024; i < (5 * 1024); i += 2)
19 iowrite16(i * 12 + 7, p + i);
20 for (i = (5 * 1024); i < (16 * 1024); i += 4)
21 iowrite32(i * 212371 + 13, p + i);
22}
23
24static void do_read_test(void __iomem *p)
25{
26 unsigned int i;
27 for (i = 0; i < 256; i++)
28 ioread8(p + i);
29 for (i = 1024; i < (5 * 1024); i += 2)
30 ioread16(p + i);
31 for (i = (5 * 1024); i < (16 * 1024); i += 4)
32 ioread32(p + i);
33}
34
35static void do_test(void)
36{
37 void __iomem *p = ioremap_nocache(mmio_address, 0x4000);
38 if (!p) {
39 pr_err(MODULE_NAME ": could not ioremap, aborting.\n");
40 return;
41 }
42 do_write_test(p);
43 do_read_test(p);
44 iounmap(p);
45}
46
47static int __init init(void)
48{
49 if (mmio_address == 0) {
50 pr_err(MODULE_NAME ": you have to use the module argument "
51 "mmio_address.\n");
52 pr_err(MODULE_NAME ": DO NOT LOAD THIS MODULE UNLESS"
53 " YOU REALLY KNOW WHAT YOU ARE DOING!\n");
54 return -ENXIO;
55 }
56
57 pr_warning(MODULE_NAME ": WARNING: mapping 16 kB @ 0x%08lx "
58 "in PCI address space, and writing "
59 "rubbish in there.\n", mmio_address);
60 do_test();
61 return 0;
62}
63
64static void __exit cleanup(void)
65{
66 pr_debug(MODULE_NAME ": unloaded.\n");
67}
68
69module_init(init);
70module_exit(cleanup);
71MODULE_LICENSE("GPL");
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index cc48d3fde545..7f3329b55d2e 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -218,8 +218,8 @@ static int nmi_setup(void)
218 } 218 }
219 219
220 } 220 }
221 on_each_cpu(nmi_save_registers, NULL, 0, 1); 221 on_each_cpu(nmi_save_registers, NULL, 1);
222 on_each_cpu(nmi_cpu_setup, NULL, 0, 1); 222 on_each_cpu(nmi_cpu_setup, NULL, 1);
223 nmi_enabled = 1; 223 nmi_enabled = 1;
224 return 0; 224 return 0;
225} 225}
@@ -269,12 +269,13 @@ static void nmi_cpu_shutdown(void *dummy)
269 269
270static void nmi_shutdown(void) 270static void nmi_shutdown(void)
271{ 271{
272 struct op_msrs *msrs = &__get_cpu_var(cpu_msrs); 272 struct op_msrs *msrs = &get_cpu_var(cpu_msrs);
273 nmi_enabled = 0; 273 nmi_enabled = 0;
274 on_each_cpu(nmi_cpu_shutdown, NULL, 0, 1); 274 on_each_cpu(nmi_cpu_shutdown, NULL, 1);
275 unregister_die_notifier(&profile_exceptions_nb); 275 unregister_die_notifier(&profile_exceptions_nb);
276 model->shutdown(msrs); 276 model->shutdown(msrs);
277 free_msrs(); 277 free_msrs();
278 put_cpu_var(cpu_msrs);
278} 279}
279 280
280static void nmi_cpu_start(void *dummy) 281static void nmi_cpu_start(void *dummy)
@@ -285,7 +286,7 @@ static void nmi_cpu_start(void *dummy)
285 286
286static int nmi_start(void) 287static int nmi_start(void)
287{ 288{
288 on_each_cpu(nmi_cpu_start, NULL, 0, 1); 289 on_each_cpu(nmi_cpu_start, NULL, 1);
289 return 0; 290 return 0;
290} 291}
291 292
@@ -297,7 +298,7 @@ static void nmi_cpu_stop(void *dummy)
297 298
298static void nmi_stop(void) 299static void nmi_stop(void)
299{ 300{
300 on_each_cpu(nmi_cpu_stop, NULL, 0, 1); 301 on_each_cpu(nmi_cpu_stop, NULL, 1);
301} 302}
302 303
303struct op_counter_config counter_config[OP_MAX_COUNTER]; 304struct op_counter_config counter_config[OP_MAX_COUNTER];
diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile
index c5c8e485fc44..e515e8db842a 100644
--- a/arch/x86/pci/Makefile
+++ b/arch/x86/pci/Makefile
@@ -1,5 +1,17 @@
1ifeq ($(CONFIG_X86_32),y) 1obj-y := i386.o init.o
2include ${srctree}/arch/x86/pci/Makefile_32 2
3else 3obj-$(CONFIG_PCI_BIOS) += pcbios.o
4include ${srctree}/arch/x86/pci/Makefile_64 4obj-$(CONFIG_PCI_MMCONFIG) += mmconfig_$(BITS).o direct.o mmconfig-shared.o
5endif 5obj-$(CONFIG_PCI_DIRECT) += direct.o
6obj-$(CONFIG_PCI_OLPC) += olpc.o
7
8pci-y := fixup.o
9pci-$(CONFIG_ACPI) += acpi.o
10pci-y += legacy.o irq.o
11
12pci-$(CONFIG_X86_VISWS) += visws.o
13
14pci-$(CONFIG_X86_NUMAQ) += numa.o
15
16obj-y += $(pci-y) common.o early.o
17obj-y += amd_bus.o
diff --git a/arch/x86/pci/Makefile_32 b/arch/x86/pci/Makefile_32
deleted file mode 100644
index 89ec35d00efd..000000000000
--- a/arch/x86/pci/Makefile_32
+++ /dev/null
@@ -1,24 +0,0 @@
1obj-y := i386.o init.o
2
3obj-$(CONFIG_PCI_BIOS) += pcbios.o
4obj-$(CONFIG_PCI_MMCONFIG) += mmconfig_32.o direct.o mmconfig-shared.o
5obj-$(CONFIG_PCI_DIRECT) += direct.o
6obj-$(CONFIG_PCI_OLPC) += olpc.o
7
8pci-y := fixup.o
9
10# Do not change the ordering here. There is a nasty init function
11# ordering dependency which breaks when you move acpi.o below
12# legacy/irq.o
13pci-$(CONFIG_ACPI) += acpi.o
14pci-y += legacy.o irq.o
15
16# Careful: VISWS and NUMAQ overrule the pci-y above. The colons are
17# therefor correct. This needs a proper fix by distangling the code.
18pci-$(CONFIG_X86_VISWS) := visws.o fixup.o
19pci-$(CONFIG_X86_NUMAQ) := numa.o irq.o
20
21# Necessary for NUMAQ as well
22pci-$(CONFIG_NUMA) += mp_bus_to_node.o
23
24obj-y += $(pci-y) common.o early.o
diff --git a/arch/x86/pci/Makefile_64 b/arch/x86/pci/Makefile_64
deleted file mode 100644
index 8fbd19832cf6..000000000000
--- a/arch/x86/pci/Makefile_64
+++ /dev/null
@@ -1,17 +0,0 @@
1#
2# Makefile for X86_64 specific PCI routines
3#
4# Reuse the i386 PCI subsystem
5#
6EXTRA_CFLAGS += -Iarch/x86/pci
7
8obj-y := i386.o
9obj-$(CONFIG_PCI_DIRECT)+= direct.o
10obj-y += fixup.o init.o
11obj-$(CONFIG_ACPI) += acpi.o
12obj-y += legacy.o irq.o common.o early.o
13# mmconfig has a 64bit special
14obj-$(CONFIG_PCI_MMCONFIG) += mmconfig_64.o direct.o mmconfig-shared.o
15
16obj-y += k8-bus_64.o
17
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index d95de2f199cd..19af06927fbc 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -171,8 +171,11 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
171 if (node != -1) 171 if (node != -1)
172 set_mp_bus_to_node(busnum, node); 172 set_mp_bus_to_node(busnum, node);
173 else 173 else
174 node = get_mp_bus_to_node(busnum);
175#endif 174#endif
175 node = get_mp_bus_to_node(busnum);
176
177 if (node != -1 && !node_online(node))
178 node = -1;
176 179
177 /* Allocate per-root-bus (not per bus) arch-specific data. 180 /* Allocate per-root-bus (not per bus) arch-specific data.
178 * TODO: leak; this memory is never freed. 181 * TODO: leak; this memory is never freed.
@@ -204,22 +207,23 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
204 if (!bus) 207 if (!bus)
205 kfree(sd); 208 kfree(sd);
206 209
210 if (bus && node != -1) {
207#ifdef CONFIG_ACPI_NUMA 211#ifdef CONFIG_ACPI_NUMA
208 if (bus) { 212 if (pxm >= 0)
209 if (pxm >= 0) {
210 printk(KERN_DEBUG "bus %02x -> pxm %d -> node %d\n", 213 printk(KERN_DEBUG "bus %02x -> pxm %d -> node %d\n",
211 busnum, pxm, pxm_to_node(pxm)); 214 busnum, pxm, node);
212 } 215#else
213 } 216 printk(KERN_DEBUG "bus %02x -> node %d\n",
217 busnum, node);
214#endif 218#endif
219 }
215 220
216 if (bus && (pci_probe & PCI_USE__CRS)) 221 if (bus && (pci_probe & PCI_USE__CRS))
217 get_current_resources(device, busnum, domain, bus); 222 get_current_resources(device, busnum, domain, bus);
218 return bus; 223 return bus;
219} 224}
220 225
221extern int pci_routeirq; 226int __init pci_acpi_init(void)
222static int __init pci_acpi_init(void)
223{ 227{
224 struct pci_dev *dev = NULL; 228 struct pci_dev *dev = NULL;
225 229
@@ -253,4 +257,3 @@ static int __init pci_acpi_init(void)
253 257
254 return 0; 258 return 0;
255} 259}
256subsys_initcall(pci_acpi_init);
diff --git a/arch/x86/pci/k8-bus_64.c b/arch/x86/pci/amd_bus.c
index 5c2799c20e47..dbf532369711 100644
--- a/arch/x86/pci/k8-bus_64.c
+++ b/arch/x86/pci/amd_bus.c
@@ -1,40 +1,25 @@
1#include <linux/init.h> 1#include <linux/init.h>
2#include <linux/pci.h> 2#include <linux/pci.h>
3#include <linux/topology.h>
4#include "pci.h"
5
6#ifdef CONFIG_X86_64
3#include <asm/pci-direct.h> 7#include <asm/pci-direct.h>
4#include <asm/mpspec.h> 8#include <asm/mpspec.h>
5#include <linux/cpumask.h> 9#include <linux/cpumask.h>
6#include <linux/topology.h> 10#endif
7 11
8/* 12/*
9 * This discovers the pcibus <-> node mapping on AMD K8. 13 * This discovers the pcibus <-> node mapping on AMD K8.
10 * also get peer root bus resource for io,mmio 14 * also get peer root bus resource for io,mmio
11 */ 15 */
12 16
13
14/*
15 * sub bus (transparent) will use entres from 3 to store extra from root,
16 * so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES?
17 */
18#define RES_NUM 16
19struct pci_root_info {
20 char name[12];
21 unsigned int res_num;
22 struct resource res[RES_NUM];
23 int bus_min;
24 int bus_max;
25 int node;
26 int link;
27};
28
29/* 4 at this time, it may become to 32 */
30#define PCI_ROOT_NR 4
31static int pci_root_num;
32static struct pci_root_info pci_root_info[PCI_ROOT_NR];
33
34#ifdef CONFIG_NUMA 17#ifdef CONFIG_NUMA
35 18
36#define BUS_NR 256 19#define BUS_NR 256
37 20
21#ifdef CONFIG_X86_64
22
38static int mp_bus_to_node[BUS_NR]; 23static int mp_bus_to_node[BUS_NR];
39 24
40void set_mp_bus_to_node(int busnum, int node) 25void set_mp_bus_to_node(int busnum, int node)
@@ -61,7 +46,52 @@ int get_mp_bus_to_node(int busnum)
61 46
62 return node; 47 return node;
63} 48}
64#endif 49
50#else /* CONFIG_X86_32 */
51
52static unsigned char mp_bus_to_node[BUS_NR];
53
54void set_mp_bus_to_node(int busnum, int node)
55{
56 if (busnum >= 0 && busnum < BUS_NR)
57 mp_bus_to_node[busnum] = (unsigned char) node;
58}
59
60int get_mp_bus_to_node(int busnum)
61{
62 int node;
63
64 if (busnum < 0 || busnum > (BUS_NR - 1))
65 return 0;
66 node = mp_bus_to_node[busnum];
67 return node;
68}
69
70#endif /* CONFIG_X86_32 */
71
72#endif /* CONFIG_NUMA */
73
74#ifdef CONFIG_X86_64
75
76/*
77 * sub bus (transparent) will use entres from 3 to store extra from root,
78 * so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES?
79 */
80#define RES_NUM 16
81struct pci_root_info {
82 char name[12];
83 unsigned int res_num;
84 struct resource res[RES_NUM];
85 int bus_min;
86 int bus_max;
87 int node;
88 int link;
89};
90
91/* 4 at this time, it may become to 32 */
92#define PCI_ROOT_NR 4
93static int pci_root_num;
94static struct pci_root_info pci_root_info[PCI_ROOT_NR];
65 95
66void set_pci_bus_resources_arch_default(struct pci_bus *b) 96void set_pci_bus_resources_arch_default(struct pci_bus *b)
67{ 97{
@@ -384,7 +414,7 @@ static int __init early_fill_mp_bus_info(void)
384 /* need to take out [0, TOM) for RAM*/ 414 /* need to take out [0, TOM) for RAM*/
385 address = MSR_K8_TOP_MEM1; 415 address = MSR_K8_TOP_MEM1;
386 rdmsrl(address, val); 416 rdmsrl(address, val);
387 end = (val & 0xffffff8000000ULL); 417 end = (val & 0xffffff800000ULL);
388 printk(KERN_INFO "TOM: %016lx aka %ldM\n", end, end>>20); 418 printk(KERN_INFO "TOM: %016lx aka %ldM\n", end, end>>20);
389 if (end < (1ULL<<32)) 419 if (end < (1ULL<<32))
390 update_range(range, 0, end - 1); 420 update_range(range, 0, end - 1);
@@ -478,7 +508,7 @@ static int __init early_fill_mp_bus_info(void)
478 /* TOP_MEM2 */ 508 /* TOP_MEM2 */
479 address = MSR_K8_TOP_MEM2; 509 address = MSR_K8_TOP_MEM2;
480 rdmsrl(address, val); 510 rdmsrl(address, val);
481 end = (val & 0xffffff8000000ULL); 511 end = (val & 0xffffff800000ULL);
482 printk(KERN_INFO "TOM2: %016lx aka %ldM\n", end, end>>20); 512 printk(KERN_INFO "TOM2: %016lx aka %ldM\n", end, end>>20);
483 update_range(range, 1ULL<<32, end - 1); 513 update_range(range, 1ULL<<32, end - 1);
484 } 514 }
@@ -526,3 +556,31 @@ static int __init early_fill_mp_bus_info(void)
526} 556}
527 557
528postcore_initcall(early_fill_mp_bus_info); 558postcore_initcall(early_fill_mp_bus_info);
559
560#endif
561
562/* common 32/64 bit code */
563
564#define ENABLE_CF8_EXT_CFG (1ULL << 46)
565
566static void enable_pci_io_ecs_per_cpu(void *unused)
567{
568 u64 reg;
569 rdmsrl(MSR_AMD64_NB_CFG, reg);
570 if (!(reg & ENABLE_CF8_EXT_CFG)) {
571 reg |= ENABLE_CF8_EXT_CFG;
572 wrmsrl(MSR_AMD64_NB_CFG, reg);
573 }
574}
575
576static int __init enable_pci_io_ecs(void)
577{
578 /* assume all cpus from fam10h have IO ECS */
579 if (boot_cpu_data.x86 < 0x10)
580 return 0;
581 on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1);
582 pci_probe |= PCI_HAS_IO_ECS;
583 return 0;
584}
585
586postcore_initcall(enable_pci_io_ecs);
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 6e64aaf00d1d..b67732bbb85a 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -20,6 +20,7 @@
20unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 | 20unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
21 PCI_PROBE_MMCONF; 21 PCI_PROBE_MMCONF;
22 22
23unsigned int pci_early_dump_regs;
23static int pci_bf_sort; 24static int pci_bf_sort;
24int pci_routeirq; 25int pci_routeirq;
25int pcibios_last_bus = -1; 26int pcibios_last_bus = -1;
@@ -31,7 +32,7 @@ struct pci_raw_ops *raw_pci_ext_ops;
31int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn, 32int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
32 int reg, int len, u32 *val) 33 int reg, int len, u32 *val)
33{ 34{
34 if (reg < 256 && raw_pci_ops) 35 if (domain == 0 && reg < 256 && raw_pci_ops)
35 return raw_pci_ops->read(domain, bus, devfn, reg, len, val); 36 return raw_pci_ops->read(domain, bus, devfn, reg, len, val);
36 if (raw_pci_ext_ops) 37 if (raw_pci_ext_ops)
37 return raw_pci_ext_ops->read(domain, bus, devfn, reg, len, val); 38 return raw_pci_ext_ops->read(domain, bus, devfn, reg, len, val);
@@ -41,7 +42,7 @@ int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
41int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn, 42int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn,
42 int reg, int len, u32 val) 43 int reg, int len, u32 val)
43{ 44{
44 if (reg < 256 && raw_pci_ops) 45 if (domain == 0 && reg < 256 && raw_pci_ops)
45 return raw_pci_ops->write(domain, bus, devfn, reg, len, val); 46 return raw_pci_ops->write(domain, bus, devfn, reg, len, val);
46 if (raw_pci_ext_ops) 47 if (raw_pci_ext_ops)
47 return raw_pci_ext_ops->write(domain, bus, devfn, reg, len, val); 48 return raw_pci_ext_ops->write(domain, bus, devfn, reg, len, val);
@@ -121,6 +122,21 @@ void __init dmi_check_skip_isa_align(void)
121 dmi_check_system(can_skip_pciprobe_dmi_table); 122 dmi_check_system(can_skip_pciprobe_dmi_table);
122} 123}
123 124
125static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
126{
127 struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE];
128
129 if (pci_probe & PCI_NOASSIGN_ROMS) {
130 if (rom_r->parent)
131 return;
132 if (rom_r->start) {
133 /* we deal with BIOS assigned ROM later */
134 return;
135 }
136 rom_r->start = rom_r->end = rom_r->flags = 0;
137 }
138}
139
124/* 140/*
125 * Called after each bus is probed, but before its children 141 * Called after each bus is probed, but before its children
126 * are examined. 142 * are examined.
@@ -128,7 +144,11 @@ void __init dmi_check_skip_isa_align(void)
128 144
129void __devinit pcibios_fixup_bus(struct pci_bus *b) 145void __devinit pcibios_fixup_bus(struct pci_bus *b)
130{ 146{
147 struct pci_dev *dev;
148
131 pci_read_bridge_bases(b); 149 pci_read_bridge_bases(b);
150 list_for_each_entry(dev, &b->devices, bus_list)
151 pcibios_fixup_device_resources(dev);
132} 152}
133 153
134/* 154/*
@@ -384,7 +404,7 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum)
384 404
385extern u8 pci_cache_line_size; 405extern u8 pci_cache_line_size;
386 406
387static int __init pcibios_init(void) 407int __init pcibios_init(void)
388{ 408{
389 struct cpuinfo_x86 *c = &boot_cpu_data; 409 struct cpuinfo_x86 *c = &boot_cpu_data;
390 410
@@ -411,8 +431,6 @@ static int __init pcibios_init(void)
411 return 0; 431 return 0;
412} 432}
413 433
414subsys_initcall(pcibios_init);
415
416char * __devinit pcibios_setup(char *str) 434char * __devinit pcibios_setup(char *str)
417{ 435{
418 if (!strcmp(str, "off")) { 436 if (!strcmp(str, "off")) {
@@ -483,12 +501,18 @@ char * __devinit pcibios_setup(char *str)
483 else if (!strcmp(str, "rom")) { 501 else if (!strcmp(str, "rom")) {
484 pci_probe |= PCI_ASSIGN_ROMS; 502 pci_probe |= PCI_ASSIGN_ROMS;
485 return NULL; 503 return NULL;
504 } else if (!strcmp(str, "norom")) {
505 pci_probe |= PCI_NOASSIGN_ROMS;
506 return NULL;
486 } else if (!strcmp(str, "assign-busses")) { 507 } else if (!strcmp(str, "assign-busses")) {
487 pci_probe |= PCI_ASSIGN_ALL_BUSSES; 508 pci_probe |= PCI_ASSIGN_ALL_BUSSES;
488 return NULL; 509 return NULL;
489 } else if (!strcmp(str, "use_crs")) { 510 } else if (!strcmp(str, "use_crs")) {
490 pci_probe |= PCI_USE__CRS; 511 pci_probe |= PCI_USE__CRS;
491 return NULL; 512 return NULL;
513 } else if (!strcmp(str, "earlydump")) {
514 pci_early_dump_regs = 1;
515 return NULL;
492 } else if (!strcmp(str, "routeirq")) { 516 } else if (!strcmp(str, "routeirq")) {
493 pci_routeirq = 1; 517 pci_routeirq = 1;
494 return NULL; 518 return NULL;
diff --git a/arch/x86/pci/direct.c b/arch/x86/pci/direct.c
index 21d1e0e0d535..9915293500fb 100644
--- a/arch/x86/pci/direct.c
+++ b/arch/x86/pci/direct.c
@@ -8,18 +8,21 @@
8#include "pci.h" 8#include "pci.h"
9 9
10/* 10/*
11 * Functions for accessing PCI configuration space with type 1 accesses 11 * Functions for accessing PCI base (first 256 bytes) and extended
12 * (4096 bytes per PCI function) configuration space with type 1
13 * accesses.
12 */ 14 */
13 15
14#define PCI_CONF1_ADDRESS(bus, devfn, reg) \ 16#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
15 (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3)) 17 (0x80000000 | ((reg & 0xF00) << 16) | (bus << 16) \
18 | (devfn << 8) | (reg & 0xFC))
16 19
17static int pci_conf1_read(unsigned int seg, unsigned int bus, 20static int pci_conf1_read(unsigned int seg, unsigned int bus,
18 unsigned int devfn, int reg, int len, u32 *value) 21 unsigned int devfn, int reg, int len, u32 *value)
19{ 22{
20 unsigned long flags; 23 unsigned long flags;
21 24
22 if ((bus > 255) || (devfn > 255) || (reg > 255)) { 25 if ((bus > 255) || (devfn > 255) || (reg > 4095)) {
23 *value = -1; 26 *value = -1;
24 return -EINVAL; 27 return -EINVAL;
25 } 28 }
@@ -50,7 +53,7 @@ static int pci_conf1_write(unsigned int seg, unsigned int bus,
50{ 53{
51 unsigned long flags; 54 unsigned long flags;
52 55
53 if ((bus > 255) || (devfn > 255) || (reg > 255)) 56 if ((bus > 255) || (devfn > 255) || (reg > 4095))
54 return -EINVAL; 57 return -EINVAL;
55 58
56 spin_lock_irqsave(&pci_config_lock, flags); 59 spin_lock_irqsave(&pci_config_lock, flags);
@@ -260,10 +263,18 @@ void __init pci_direct_init(int type)
260 return; 263 return;
261 printk(KERN_INFO "PCI: Using configuration type %d for base access\n", 264 printk(KERN_INFO "PCI: Using configuration type %d for base access\n",
262 type); 265 type);
263 if (type == 1) 266 if (type == 1) {
264 raw_pci_ops = &pci_direct_conf1; 267 raw_pci_ops = &pci_direct_conf1;
265 else 268 if (raw_pci_ext_ops)
266 raw_pci_ops = &pci_direct_conf2; 269 return;
270 if (!(pci_probe & PCI_HAS_IO_ECS))
271 return;
272 printk(KERN_INFO "PCI: Using configuration type 1 "
273 "for extended access\n");
274 raw_pci_ext_ops = &pci_direct_conf1;
275 return;
276 }
277 raw_pci_ops = &pci_direct_conf2;
267} 278}
268 279
269int __init pci_direct_probe(void) 280int __init pci_direct_probe(void)
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index 42df4b6606df..858dbe3399f9 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -49,7 +49,14 @@ void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val)
49{ 49{
50 PDprintk("%x writing to %x: %x\n", slot, offset, val); 50 PDprintk("%x writing to %x: %x\n", slot, offset, val);
51 outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); 51 outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
52 outb(val, 0xcfc); 52 outb(val, 0xcfc + (offset&3));
53}
54
55void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
56{
57 PDprintk("%x writing to %x: %x\n", slot, offset, val);
58 outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
59 outw(val, 0xcfc + (offset&2));
53} 60}
54 61
55int early_pci_allowed(void) 62int early_pci_allowed(void)
@@ -57,3 +64,54 @@ int early_pci_allowed(void)
57 return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) == 64 return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
58 PCI_PROBE_CONF1; 65 PCI_PROBE_CONF1;
59} 66}
67
68void early_dump_pci_device(u8 bus, u8 slot, u8 func)
69{
70 int i;
71 int j;
72 u32 val;
73
74 printk("PCI: %02x:%02x:%02x", bus, slot, func);
75
76 for (i = 0; i < 256; i += 4) {
77 if (!(i & 0x0f))
78 printk("\n%04x:",i);
79
80 val = read_pci_config(bus, slot, func, i);
81 for (j = 0; j < 4; j++) {
82 printk(" %02x", val & 0xff);
83 val >>= 8;
84 }
85 }
86 printk("\n");
87}
88
89void early_dump_pci_devices(void)
90{
91 unsigned bus, slot, func;
92
93 if (!early_pci_allowed())
94 return;
95
96 for (bus = 0; bus < 256; bus++) {
97 for (slot = 0; slot < 32; slot++) {
98 for (func = 0; func < 8; func++) {
99 u32 class;
100 u8 type;
101 class = read_pci_config(bus, slot, func,
102 PCI_CLASS_REVISION);
103 if (class == 0xffffffff)
104 break;
105
106 early_dump_pci_device(bus, slot, func);
107
108 /* No multi-function device? */
109 type = read_pci_config_byte(bus, slot, func,
110 PCI_HEADER_TYPE);
111 if (!(type & 0x80))
112 break;
113 }
114 }
115 }
116}
117
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 10fb308fded8..2aafb67dc5f1 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -299,9 +299,9 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
299 return -EINVAL; 299 return -EINVAL;
300 300
301 prot = pgprot_val(vma->vm_page_prot); 301 prot = pgprot_val(vma->vm_page_prot);
302 if (pat_wc_enabled && write_combine) 302 if (pat_enabled && write_combine)
303 prot |= _PAGE_CACHE_WC; 303 prot |= _PAGE_CACHE_WC;
304 else if (pat_wc_enabled || boot_cpu_data.x86 > 3) 304 else if (pat_enabled || boot_cpu_data.x86 > 3)
305 /* 305 /*
306 * ioremap() and ioremap_nocache() defaults to UC MINUS for now. 306 * ioremap() and ioremap_nocache() defaults to UC MINUS for now.
307 * To avoid attribute conflicts, request UC MINUS here 307 * To avoid attribute conflicts, request UC MINUS here
@@ -334,7 +334,9 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
334 flags = new_flags; 334 flags = new_flags;
335 } 335 }
336 336
337 if (vma->vm_pgoff <= max_pfn_mapped && 337 if (((vma->vm_pgoff < max_low_pfn_mapped) ||
338 (vma->vm_pgoff >= (1UL<<(32 - PAGE_SHIFT)) &&
339 vma->vm_pgoff < max_pfn_mapped)) &&
338 ioremap_change_attr((unsigned long)__va(addr), len, flags)) { 340 ioremap_change_attr((unsigned long)__va(addr), len, flags)) {
339 free_memtype(addr, addr + len); 341 free_memtype(addr, addr + len);
340 return -EINVAL; 342 return -EINVAL;
diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index e70b9c57b88e..d6c950f81858 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -4,7 +4,7 @@
4 4
5/* arch_initcall has too random ordering, so call the initializers 5/* arch_initcall has too random ordering, so call the initializers
6 in the right sequence from here. */ 6 in the right sequence from here. */
7static __init int pci_access_init(void) 7static __init int pci_arch_init(void)
8{ 8{
9#ifdef CONFIG_PCI_DIRECT 9#ifdef CONFIG_PCI_DIRECT
10 int type = 0; 10 int type = 0;
@@ -15,7 +15,8 @@ static __init int pci_access_init(void)
15 pci_mmcfg_early_init(); 15 pci_mmcfg_early_init();
16 16
17#ifdef CONFIG_PCI_OLPC 17#ifdef CONFIG_PCI_OLPC
18 pci_olpc_init(); 18 if (!pci_olpc_init())
19 return 0; /* skip additional checks if it's an XO */
19#endif 20#endif
20#ifdef CONFIG_PCI_BIOS 21#ifdef CONFIG_PCI_BIOS
21 pci_pcbios_init(); 22 pci_pcbios_init();
@@ -39,4 +40,4 @@ static __init int pci_access_init(void)
39 40
40 return 0; 41 return 0;
41} 42}
42arch_initcall(pci_access_init); 43arch_initcall(pci_arch_init);
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 0908fca901bf..6a06a2eb0597 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -11,8 +11,8 @@
11#include <linux/slab.h> 11#include <linux/slab.h>
12#include <linux/interrupt.h> 12#include <linux/interrupt.h>
13#include <linux/dmi.h> 13#include <linux/dmi.h>
14#include <asm/io.h> 14#include <linux/io.h>
15#include <asm/smp.h> 15#include <linux/smp.h>
16#include <asm/io_apic.h> 16#include <asm/io_apic.h>
17#include <linux/irq.h> 17#include <linux/irq.h>
18#include <linux/acpi.h> 18#include <linux/acpi.h>
@@ -45,7 +45,8 @@ struct irq_router {
45 char *name; 45 char *name;
46 u16 vendor, device; 46 u16 vendor, device;
47 int (*get)(struct pci_dev *router, struct pci_dev *dev, int pirq); 47 int (*get)(struct pci_dev *router, struct pci_dev *dev, int pirq);
48 int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq, int new); 48 int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq,
49 int new);
49}; 50};
50 51
51struct irq_router_handler { 52struct irq_router_handler {
@@ -61,7 +62,7 @@ void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
61 * and perform checksum verification. 62 * and perform checksum verification.
62 */ 63 */
63 64
64static inline struct irq_routing_table * pirq_check_routing_table(u8 *addr) 65static inline struct irq_routing_table *pirq_check_routing_table(u8 *addr)
65{ 66{
66 struct irq_routing_table *rt; 67 struct irq_routing_table *rt;
67 int i; 68 int i;
@@ -74,10 +75,11 @@ static inline struct irq_routing_table * pirq_check_routing_table(u8 *addr)
74 rt->size < sizeof(struct irq_routing_table)) 75 rt->size < sizeof(struct irq_routing_table))
75 return NULL; 76 return NULL;
76 sum = 0; 77 sum = 0;
77 for (i=0; i < rt->size; i++) 78 for (i = 0; i < rt->size; i++)
78 sum += addr[i]; 79 sum += addr[i];
79 if (!sum) { 80 if (!sum) {
80 DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%p\n", rt); 81 DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%p\n",
82 rt);
81 return rt; 83 return rt;
82 } 84 }
83 return NULL; 85 return NULL;
@@ -100,7 +102,7 @@ static struct irq_routing_table * __init pirq_find_routing_table(void)
100 return rt; 102 return rt;
101 printk(KERN_WARNING "PCI: PIRQ table NOT found at pirqaddr\n"); 103 printk(KERN_WARNING "PCI: PIRQ table NOT found at pirqaddr\n");
102 } 104 }
103 for(addr = (u8 *) __va(0xf0000); addr < (u8 *) __va(0x100000); addr += 16) { 105 for (addr = (u8 *) __va(0xf0000); addr < (u8 *) __va(0x100000); addr += 16) {
104 rt = pirq_check_routing_table(addr); 106 rt = pirq_check_routing_table(addr);
105 if (rt) 107 if (rt)
106 return rt; 108 return rt;
@@ -122,20 +124,20 @@ static void __init pirq_peer_trick(void)
122 struct irq_info *e; 124 struct irq_info *e;
123 125
124 memset(busmap, 0, sizeof(busmap)); 126 memset(busmap, 0, sizeof(busmap));
125 for(i=0; i < (rt->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); i++) { 127 for (i = 0; i < (rt->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); i++) {
126 e = &rt->slots[i]; 128 e = &rt->slots[i];
127#ifdef DEBUG 129#ifdef DEBUG
128 { 130 {
129 int j; 131 int j;
130 DBG(KERN_DEBUG "%02x:%02x slot=%02x", e->bus, e->devfn/8, e->slot); 132 DBG(KERN_DEBUG "%02x:%02x slot=%02x", e->bus, e->devfn/8, e->slot);
131 for(j=0; j<4; j++) 133 for (j = 0; j < 4; j++)
132 DBG(" %d:%02x/%04x", j, e->irq[j].link, e->irq[j].bitmap); 134 DBG(" %d:%02x/%04x", j, e->irq[j].link, e->irq[j].bitmap);
133 DBG("\n"); 135 DBG("\n");
134 } 136 }
135#endif 137#endif
136 busmap[e->bus] = 1; 138 busmap[e->bus] = 1;
137 } 139 }
138 for(i = 1; i < 256; i++) { 140 for (i = 1; i < 256; i++) {
139 int node; 141 int node;
140 if (!busmap[i] || pci_find_bus(0, i)) 142 if (!busmap[i] || pci_find_bus(0, i))
141 continue; 143 continue;
@@ -183,7 +185,8 @@ static unsigned int read_config_nybble(struct pci_dev *router, unsigned offset,
183 return (nr & 1) ? (x >> 4) : (x & 0xf); 185 return (nr & 1) ? (x >> 4) : (x & 0xf);
184} 186}
185 187
186static void write_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr, unsigned int val) 188static void write_config_nybble(struct pci_dev *router, unsigned offset,
189 unsigned nr, unsigned int val)
187{ 190{
188 u8 x; 191 u8 x;
189 unsigned reg = offset + (nr >> 1); 192 unsigned reg = offset + (nr >> 1);
@@ -285,7 +288,7 @@ static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
285 static const unsigned char pirqmap[4] = { 1, 0, 2, 3 }; 288 static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
286 289
287 WARN_ON_ONCE(pirq > 4); 290 WARN_ON_ONCE(pirq > 4);
288 return read_config_nybble(router,0x43, pirqmap[pirq-1]); 291 return read_config_nybble(router, 0x43, pirqmap[pirq-1]);
289} 292}
290 293
291static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 294static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
@@ -314,7 +317,7 @@ static int pirq_opti_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
314 317
315/* 318/*
316 * Cyrix: nibble offset 0x5C 319 * Cyrix: nibble offset 0x5C
317 * 0x5C bits 7:4 is INTB bits 3:0 is INTA 320 * 0x5C bits 7:4 is INTB bits 3:0 is INTA
318 * 0x5D bits 7:4 is INTD bits 3:0 is INTC 321 * 0x5D bits 7:4 is INTD bits 3:0 is INTC
319 */ 322 */
320static int pirq_cyrix_get(struct pci_dev *router, struct pci_dev *dev, int pirq) 323static int pirq_cyrix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
@@ -350,7 +353,7 @@ static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
350 * Apparently there are systems implementing PCI routing table using 353 * Apparently there are systems implementing PCI routing table using
351 * link values 0x01-0x04 and others using 0x41-0x44 for PCI INTA..D. 354 * link values 0x01-0x04 and others using 0x41-0x44 for PCI INTA..D.
352 * We try our best to handle both link mappings. 355 * We try our best to handle both link mappings.
353 * 356 *
354 * Currently (2003-05-21) it appears most SiS chipsets follow the 357 * Currently (2003-05-21) it appears most SiS chipsets follow the
355 * definition of routing registers from the SiS-5595 southbridge. 358 * definition of routing registers from the SiS-5595 southbridge.
356 * According to the SiS 5595 datasheets the revision id's of the 359 * According to the SiS 5595 datasheets the revision id's of the
@@ -370,7 +373,7 @@ static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
370 * 373 *
371 * 0x62: USBIRQ: 374 * 0x62: USBIRQ:
372 * bit 6 OHCI function disabled (0), enabled (1) 375 * bit 6 OHCI function disabled (0), enabled (1)
373 * 376 *
374 * 0x6a: ACPI/SCI IRQ: bits 4-6 reserved 377 * 0x6a: ACPI/SCI IRQ: bits 4-6 reserved
375 * 378 *
376 * 0x7e: Data Acq. Module IRQ - bits 4-6 reserved 379 * 0x7e: Data Acq. Module IRQ - bits 4-6 reserved
@@ -467,7 +470,8 @@ static int pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int
467 return inb(0xc01) & 0xf; 470 return inb(0xc01) & 0xf;
468} 471}
469 472
470static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 473static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev,
474 int pirq, int irq)
471{ 475{
472 outb(pirq, 0xc00); 476 outb(pirq, 0xc00);
473 outb(irq, 0xc01); 477 outb(irq, 0xc01);
@@ -487,9 +491,7 @@ static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq
487 u8 irq; 491 u8 irq;
488 irq = 0; 492 irq = 0;
489 if (pirq <= 4) 493 if (pirq <= 4)
490 {
491 irq = read_config_nybble(router, 0x56, pirq - 1); 494 irq = read_config_nybble(router, 0x56, pirq - 1);
492 }
493 printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d get irq : %2d\n", 495 printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d get irq : %2d\n",
494 dev->vendor, dev->device, pirq, irq); 496 dev->vendor, dev->device, pirq, irq);
495 return irq; 497 return irq;
@@ -497,12 +499,10 @@ static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq
497 499
498static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) 500static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
499{ 501{
500 printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d SET irq : %2d\n", 502 printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d SET irq : %2d\n",
501 dev->vendor, dev->device, pirq, irq); 503 dev->vendor, dev->device, pirq, irq);
502 if (pirq <= 4) 504 if (pirq <= 4)
503 {
504 write_config_nybble(router, 0x56, pirq - 1, irq); 505 write_config_nybble(router, 0x56, pirq - 1, irq);
505 }
506 return 1; 506 return 1;
507} 507}
508 508
@@ -549,50 +549,49 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
549 if (pci_dev_present(pirq_440gx)) 549 if (pci_dev_present(pirq_440gx))
550 return 0; 550 return 0;
551 551
552 switch(device) 552 switch (device) {
553 { 553 case PCI_DEVICE_ID_INTEL_82371FB_0:
554 case PCI_DEVICE_ID_INTEL_82371FB_0: 554 case PCI_DEVICE_ID_INTEL_82371SB_0:
555 case PCI_DEVICE_ID_INTEL_82371SB_0: 555 case PCI_DEVICE_ID_INTEL_82371AB_0:
556 case PCI_DEVICE_ID_INTEL_82371AB_0: 556 case PCI_DEVICE_ID_INTEL_82371MX:
557 case PCI_DEVICE_ID_INTEL_82371MX: 557 case PCI_DEVICE_ID_INTEL_82443MX_0:
558 case PCI_DEVICE_ID_INTEL_82443MX_0: 558 case PCI_DEVICE_ID_INTEL_82801AA_0:
559 case PCI_DEVICE_ID_INTEL_82801AA_0: 559 case PCI_DEVICE_ID_INTEL_82801AB_0:
560 case PCI_DEVICE_ID_INTEL_82801AB_0: 560 case PCI_DEVICE_ID_INTEL_82801BA_0:
561 case PCI_DEVICE_ID_INTEL_82801BA_0: 561 case PCI_DEVICE_ID_INTEL_82801BA_10:
562 case PCI_DEVICE_ID_INTEL_82801BA_10: 562 case PCI_DEVICE_ID_INTEL_82801CA_0:
563 case PCI_DEVICE_ID_INTEL_82801CA_0: 563 case PCI_DEVICE_ID_INTEL_82801CA_12:
564 case PCI_DEVICE_ID_INTEL_82801CA_12: 564 case PCI_DEVICE_ID_INTEL_82801DB_0:
565 case PCI_DEVICE_ID_INTEL_82801DB_0: 565 case PCI_DEVICE_ID_INTEL_82801E_0:
566 case PCI_DEVICE_ID_INTEL_82801E_0: 566 case PCI_DEVICE_ID_INTEL_82801EB_0:
567 case PCI_DEVICE_ID_INTEL_82801EB_0: 567 case PCI_DEVICE_ID_INTEL_ESB_1:
568 case PCI_DEVICE_ID_INTEL_ESB_1: 568 case PCI_DEVICE_ID_INTEL_ICH6_0:
569 case PCI_DEVICE_ID_INTEL_ICH6_0: 569 case PCI_DEVICE_ID_INTEL_ICH6_1:
570 case PCI_DEVICE_ID_INTEL_ICH6_1: 570 case PCI_DEVICE_ID_INTEL_ICH7_0:
571 case PCI_DEVICE_ID_INTEL_ICH7_0: 571 case PCI_DEVICE_ID_INTEL_ICH7_1:
572 case PCI_DEVICE_ID_INTEL_ICH7_1: 572 case PCI_DEVICE_ID_INTEL_ICH7_30:
573 case PCI_DEVICE_ID_INTEL_ICH7_30: 573 case PCI_DEVICE_ID_INTEL_ICH7_31:
574 case PCI_DEVICE_ID_INTEL_ICH7_31: 574 case PCI_DEVICE_ID_INTEL_ESB2_0:
575 case PCI_DEVICE_ID_INTEL_ESB2_0: 575 case PCI_DEVICE_ID_INTEL_ICH8_0:
576 case PCI_DEVICE_ID_INTEL_ICH8_0: 576 case PCI_DEVICE_ID_INTEL_ICH8_1:
577 case PCI_DEVICE_ID_INTEL_ICH8_1: 577 case PCI_DEVICE_ID_INTEL_ICH8_2:
578 case PCI_DEVICE_ID_INTEL_ICH8_2: 578 case PCI_DEVICE_ID_INTEL_ICH8_3:
579 case PCI_DEVICE_ID_INTEL_ICH8_3: 579 case PCI_DEVICE_ID_INTEL_ICH8_4:
580 case PCI_DEVICE_ID_INTEL_ICH8_4: 580 case PCI_DEVICE_ID_INTEL_ICH9_0:
581 case PCI_DEVICE_ID_INTEL_ICH9_0: 581 case PCI_DEVICE_ID_INTEL_ICH9_1:
582 case PCI_DEVICE_ID_INTEL_ICH9_1: 582 case PCI_DEVICE_ID_INTEL_ICH9_2:
583 case PCI_DEVICE_ID_INTEL_ICH9_2: 583 case PCI_DEVICE_ID_INTEL_ICH9_3:
584 case PCI_DEVICE_ID_INTEL_ICH9_3: 584 case PCI_DEVICE_ID_INTEL_ICH9_4:
585 case PCI_DEVICE_ID_INTEL_ICH9_4: 585 case PCI_DEVICE_ID_INTEL_ICH9_5:
586 case PCI_DEVICE_ID_INTEL_ICH9_5: 586 case PCI_DEVICE_ID_INTEL_TOLAPAI_0:
587 case PCI_DEVICE_ID_INTEL_TOLAPAI_0: 587 case PCI_DEVICE_ID_INTEL_ICH10_0:
588 case PCI_DEVICE_ID_INTEL_ICH10_0: 588 case PCI_DEVICE_ID_INTEL_ICH10_1:
589 case PCI_DEVICE_ID_INTEL_ICH10_1: 589 case PCI_DEVICE_ID_INTEL_ICH10_2:
590 case PCI_DEVICE_ID_INTEL_ICH10_2: 590 case PCI_DEVICE_ID_INTEL_ICH10_3:
591 case PCI_DEVICE_ID_INTEL_ICH10_3: 591 r->name = "PIIX/ICH";
592 r->name = "PIIX/ICH"; 592 r->get = pirq_piix_get;
593 r->get = pirq_piix_get; 593 r->set = pirq_piix_set;
594 r->set = pirq_piix_set; 594 return 1;
595 return 1;
596 } 595 }
597 return 0; 596 return 0;
598} 597}
@@ -606,7 +605,7 @@ static __init int via_router_probe(struct irq_router *r,
606 * workarounds for some buggy BIOSes 605 * workarounds for some buggy BIOSes
607 */ 606 */
608 if (device == PCI_DEVICE_ID_VIA_82C586_0) { 607 if (device == PCI_DEVICE_ID_VIA_82C586_0) {
609 switch(router->device) { 608 switch (router->device) {
610 case PCI_DEVICE_ID_VIA_82C686: 609 case PCI_DEVICE_ID_VIA_82C686:
611 /* 610 /*
612 * Asus k7m bios wrongly reports 82C686A 611 * Asus k7m bios wrongly reports 82C686A
@@ -621,10 +620,17 @@ static __init int via_router_probe(struct irq_router *r,
621 */ 620 */
622 device = PCI_DEVICE_ID_VIA_8235; 621 device = PCI_DEVICE_ID_VIA_8235;
623 break; 622 break;
623 case PCI_DEVICE_ID_VIA_8237:
624 /**
625 * Asus a7v600 bios wrongly reports 8237
626 * as 586-compatible
627 */
628 device = PCI_DEVICE_ID_VIA_8237;
629 break;
624 } 630 }
625 } 631 }
626 632
627 switch(device) { 633 switch (device) {
628 case PCI_DEVICE_ID_VIA_82C586_0: 634 case PCI_DEVICE_ID_VIA_82C586_0:
629 r->name = "VIA"; 635 r->name = "VIA";
630 r->get = pirq_via586_get; 636 r->get = pirq_via586_get;
@@ -647,28 +653,27 @@ static __init int via_router_probe(struct irq_router *r,
647 653
648static __init int vlsi_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 654static __init int vlsi_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
649{ 655{
650 switch(device) 656 switch (device) {
651 { 657 case PCI_DEVICE_ID_VLSI_82C534:
652 case PCI_DEVICE_ID_VLSI_82C534: 658 r->name = "VLSI 82C534";
653 r->name = "VLSI 82C534"; 659 r->get = pirq_vlsi_get;
654 r->get = pirq_vlsi_get; 660 r->set = pirq_vlsi_set;
655 r->set = pirq_vlsi_set; 661 return 1;
656 return 1;
657 } 662 }
658 return 0; 663 return 0;
659} 664}
660 665
661 666
662static __init int serverworks_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 667static __init int serverworks_router_probe(struct irq_router *r,
668 struct pci_dev *router, u16 device)
663{ 669{
664 switch(device) 670 switch (device) {
665 { 671 case PCI_DEVICE_ID_SERVERWORKS_OSB4:
666 case PCI_DEVICE_ID_SERVERWORKS_OSB4: 672 case PCI_DEVICE_ID_SERVERWORKS_CSB5:
667 case PCI_DEVICE_ID_SERVERWORKS_CSB5: 673 r->name = "ServerWorks";
668 r->name = "ServerWorks"; 674 r->get = pirq_serverworks_get;
669 r->get = pirq_serverworks_get; 675 r->set = pirq_serverworks_set;
670 r->set = pirq_serverworks_set; 676 return 1;
671 return 1;
672 } 677 }
673 return 0; 678 return 0;
674} 679}
@@ -677,7 +682,7 @@ static __init int sis_router_probe(struct irq_router *r, struct pci_dev *router,
677{ 682{
678 if (device != PCI_DEVICE_ID_SI_503) 683 if (device != PCI_DEVICE_ID_SI_503)
679 return 0; 684 return 0;
680 685
681 r->name = "SIS"; 686 r->name = "SIS";
682 r->get = pirq_sis_get; 687 r->get = pirq_sis_get;
683 r->set = pirq_sis_set; 688 r->set = pirq_sis_set;
@@ -686,47 +691,43 @@ static __init int sis_router_probe(struct irq_router *r, struct pci_dev *router,
686 691
687static __init int cyrix_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 692static __init int cyrix_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
688{ 693{
689 switch(device) 694 switch (device) {
690 { 695 case PCI_DEVICE_ID_CYRIX_5520:
691 case PCI_DEVICE_ID_CYRIX_5520: 696 r->name = "NatSemi";
692 r->name = "NatSemi"; 697 r->get = pirq_cyrix_get;
693 r->get = pirq_cyrix_get; 698 r->set = pirq_cyrix_set;
694 r->set = pirq_cyrix_set; 699 return 1;
695 return 1;
696 } 700 }
697 return 0; 701 return 0;
698} 702}
699 703
700static __init int opti_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 704static __init int opti_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
701{ 705{
702 switch(device) 706 switch (device) {
703 { 707 case PCI_DEVICE_ID_OPTI_82C700:
704 case PCI_DEVICE_ID_OPTI_82C700: 708 r->name = "OPTI";
705 r->name = "OPTI"; 709 r->get = pirq_opti_get;
706 r->get = pirq_opti_get; 710 r->set = pirq_opti_set;
707 r->set = pirq_opti_set; 711 return 1;
708 return 1;
709 } 712 }
710 return 0; 713 return 0;
711} 714}
712 715
713static __init int ite_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 716static __init int ite_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
714{ 717{
715 switch(device) 718 switch (device) {
716 { 719 case PCI_DEVICE_ID_ITE_IT8330G_0:
717 case PCI_DEVICE_ID_ITE_IT8330G_0: 720 r->name = "ITE";
718 r->name = "ITE"; 721 r->get = pirq_ite_get;
719 r->get = pirq_ite_get; 722 r->set = pirq_ite_set;
720 r->set = pirq_ite_set; 723 return 1;
721 return 1;
722 } 724 }
723 return 0; 725 return 0;
724} 726}
725 727
726static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 728static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
727{ 729{
728 switch(device) 730 switch (device) {
729 {
730 case PCI_DEVICE_ID_AL_M1533: 731 case PCI_DEVICE_ID_AL_M1533:
731 case PCI_DEVICE_ID_AL_M1563: 732 case PCI_DEVICE_ID_AL_M1563:
732 printk(KERN_DEBUG "PCI: Using ALI IRQ Router\n"); 733 printk(KERN_DEBUG "PCI: Using ALI IRQ Router\n");
@@ -740,25 +741,24 @@ static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router,
740 741
741static __init int amd_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 742static __init int amd_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
742{ 743{
743 switch(device) 744 switch (device) {
744 { 745 case PCI_DEVICE_ID_AMD_VIPER_740B:
745 case PCI_DEVICE_ID_AMD_VIPER_740B: 746 r->name = "AMD756";
746 r->name = "AMD756"; 747 break;
747 break; 748 case PCI_DEVICE_ID_AMD_VIPER_7413:
748 case PCI_DEVICE_ID_AMD_VIPER_7413: 749 r->name = "AMD766";
749 r->name = "AMD766"; 750 break;
750 break; 751 case PCI_DEVICE_ID_AMD_VIPER_7443:
751 case PCI_DEVICE_ID_AMD_VIPER_7443: 752 r->name = "AMD768";
752 r->name = "AMD768"; 753 break;
753 break; 754 default:
754 default: 755 return 0;
755 return 0;
756 } 756 }
757 r->get = pirq_amd756_get; 757 r->get = pirq_amd756_get;
758 r->set = pirq_amd756_set; 758 r->set = pirq_amd756_set;
759 return 1; 759 return 1;
760} 760}
761 761
762static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) 762static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
763{ 763{
764 switch (device) { 764 switch (device) {
@@ -800,7 +800,7 @@ static struct pci_dev *pirq_router_dev;
800 * FIXME: should we have an option to say "generic for 800 * FIXME: should we have an option to say "generic for
801 * chipset" ? 801 * chipset" ?
802 */ 802 */
803 803
804static void __init pirq_find_router(struct irq_router *r) 804static void __init pirq_find_router(struct irq_router *r)
805{ 805{
806 struct irq_routing_table *rt = pirq_table; 806 struct irq_routing_table *rt = pirq_table;
@@ -819,7 +819,7 @@ static void __init pirq_find_router(struct irq_router *r)
819 r->name = "default"; 819 r->name = "default";
820 r->get = NULL; 820 r->get = NULL;
821 r->set = NULL; 821 r->set = NULL;
822 822
823 DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for %04x:%04x\n", 823 DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for %04x:%04x\n",
824 rt->rtr_vendor, rt->rtr_device); 824 rt->rtr_vendor, rt->rtr_device);
825 825
@@ -830,12 +830,14 @@ static void __init pirq_find_router(struct irq_router *r)
830 return; 830 return;
831 } 831 }
832 832
833 for( h = pirq_routers; h->vendor; h++) { 833 for (h = pirq_routers; h->vendor; h++) {
834 /* First look for a router match */ 834 /* First look for a router match */
835 if (rt->rtr_vendor == h->vendor && h->probe(r, pirq_router_dev, rt->rtr_device)) 835 if (rt->rtr_vendor == h->vendor &&
836 h->probe(r, pirq_router_dev, rt->rtr_device))
836 break; 837 break;
837 /* Fall back to a device match */ 838 /* Fall back to a device match */
838 if (pirq_router_dev->vendor == h->vendor && h->probe(r, pirq_router_dev, pirq_router_dev->device)) 839 if (pirq_router_dev->vendor == h->vendor &&
840 h->probe(r, pirq_router_dev, pirq_router_dev->device))
839 break; 841 break;
840 } 842 }
841 printk(KERN_INFO "PCI: Using IRQ router %s [%04x/%04x] at %s\n", 843 printk(KERN_INFO "PCI: Using IRQ router %s [%04x/%04x] at %s\n",
@@ -850,11 +852,13 @@ static void __init pirq_find_router(struct irq_router *r)
850static struct irq_info *pirq_get_info(struct pci_dev *dev) 852static struct irq_info *pirq_get_info(struct pci_dev *dev)
851{ 853{
852 struct irq_routing_table *rt = pirq_table; 854 struct irq_routing_table *rt = pirq_table;
853 int entries = (rt->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); 855 int entries = (rt->size - sizeof(struct irq_routing_table)) /
856 sizeof(struct irq_info);
854 struct irq_info *info; 857 struct irq_info *info;
855 858
856 for (info = rt->slots; entries--; info++) 859 for (info = rt->slots; entries--; info++)
857 if (info->bus == dev->bus->number && PCI_SLOT(info->devfn) == PCI_SLOT(dev->devfn)) 860 if (info->bus == dev->bus->number &&
861 PCI_SLOT(info->devfn) == PCI_SLOT(dev->devfn))
858 return info; 862 return info;
859 return NULL; 863 return NULL;
860} 864}
@@ -882,7 +886,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
882 886
883 if (!pirq_table) 887 if (!pirq_table)
884 return 0; 888 return 0;
885 889
886 DBG(KERN_DEBUG "IRQ for %s[%c]", pci_name(dev), 'A' + pin); 890 DBG(KERN_DEBUG "IRQ for %s[%c]", pci_name(dev), 'A' + pin);
887 info = pirq_get_info(dev); 891 info = pirq_get_info(dev);
888 if (!info) { 892 if (!info) {
@@ -895,7 +899,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
895 DBG(" -> not routed\n" KERN_DEBUG); 899 DBG(" -> not routed\n" KERN_DEBUG);
896 return 0; 900 return 0;
897 } 901 }
898 DBG(" -> PIRQ %02x, mask %04x, excl %04x", pirq, mask, pirq_table->exclusive_irqs); 902 DBG(" -> PIRQ %02x, mask %04x, excl %04x", pirq, mask,
903 pirq_table->exclusive_irqs);
899 mask &= pcibios_irq_mask; 904 mask &= pcibios_irq_mask;
900 905
901 /* Work around broken HP Pavilion Notebooks which assign USB to 906 /* Work around broken HP Pavilion Notebooks which assign USB to
@@ -908,7 +913,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
908 } 913 }
909 914
910 /* same for Acer Travelmate 360, but with CB and irq 11 -> 10 */ 915 /* same for Acer Travelmate 360, but with CB and irq 11 -> 10 */
911 if (acer_tm360_irqrouting && dev->irq == 11 && dev->vendor == PCI_VENDOR_ID_O2) { 916 if (acer_tm360_irqrouting && dev->irq == 11 &&
917 dev->vendor == PCI_VENDOR_ID_O2) {
912 pirq = 0x68; 918 pirq = 0x68;
913 mask = 0x400; 919 mask = 0x400;
914 dev->irq = r->get(pirq_router_dev, dev, pirq); 920 dev->irq = r->get(pirq_router_dev, dev, pirq);
@@ -921,17 +927,20 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
921 */ 927 */
922 newirq = dev->irq; 928 newirq = dev->irq;
923 if (newirq && !((1 << newirq) & mask)) { 929 if (newirq && !((1 << newirq) & mask)) {
924 if ( pci_probe & PCI_USE_PIRQ_MASK) newirq = 0; 930 if (pci_probe & PCI_USE_PIRQ_MASK)
925 else printk("\n" KERN_WARNING 931 newirq = 0;
926 "PCI: IRQ %i for device %s doesn't match PIRQ mask " 932 else
927 "- try pci=usepirqmask\n" KERN_DEBUG, newirq, 933 printk("\n" KERN_WARNING
928 pci_name(dev)); 934 "PCI: IRQ %i for device %s doesn't match PIRQ mask - try pci=usepirqmask\n"
935 KERN_DEBUG, newirq,
936 pci_name(dev));
929 } 937 }
930 if (!newirq && assign) { 938 if (!newirq && assign) {
931 for (i = 0; i < 16; i++) { 939 for (i = 0; i < 16; i++) {
932 if (!(mask & (1 << i))) 940 if (!(mask & (1 << i)))
933 continue; 941 continue;
934 if (pirq_penalty[i] < pirq_penalty[newirq] && can_request_irq(i, IRQF_SHARED)) 942 if (pirq_penalty[i] < pirq_penalty[newirq] &&
943 can_request_irq(i, IRQF_SHARED))
935 newirq = i; 944 newirq = i;
936 } 945 }
937 } 946 }
@@ -942,12 +951,13 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
942 irq = pirq & 0xf; 951 irq = pirq & 0xf;
943 DBG(" -> hardcoded IRQ %d\n", irq); 952 DBG(" -> hardcoded IRQ %d\n", irq);
944 msg = "Hardcoded"; 953 msg = "Hardcoded";
945 } else if ( r->get && (irq = r->get(pirq_router_dev, dev, pirq)) && \ 954 } else if (r->get && (irq = r->get(pirq_router_dev, dev, pirq)) && \
946 ((!(pci_probe & PCI_USE_PIRQ_MASK)) || ((1 << irq) & mask)) ) { 955 ((!(pci_probe & PCI_USE_PIRQ_MASK)) || ((1 << irq) & mask))) {
947 DBG(" -> got IRQ %d\n", irq); 956 DBG(" -> got IRQ %d\n", irq);
948 msg = "Found"; 957 msg = "Found";
949 eisa_set_level_irq(irq); 958 eisa_set_level_irq(irq);
950 } else if (newirq && r->set && (dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) { 959 } else if (newirq && r->set &&
960 (dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) {
951 DBG(" -> assigning IRQ %d", newirq); 961 DBG(" -> assigning IRQ %d", newirq);
952 if (r->set(pirq_router_dev, dev, pirq, newirq)) { 962 if (r->set(pirq_router_dev, dev, pirq, newirq)) {
953 eisa_set_level_irq(newirq); 963 eisa_set_level_irq(newirq);
@@ -965,7 +975,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
965 } else 975 } else
966 return 0; 976 return 0;
967 } 977 }
968 printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq, pci_name(dev)); 978 printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq,
979 pci_name(dev));
969 980
970 /* Update IRQ for all devices with the same pirq value */ 981 /* Update IRQ for all devices with the same pirq value */
971 while ((dev2 = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) { 982 while ((dev2 = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) {
@@ -977,20 +988,25 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
977 if (!info) 988 if (!info)
978 continue; 989 continue;
979 if (info->irq[pin].link == pirq) { 990 if (info->irq[pin].link == pirq) {
980 /* We refuse to override the dev->irq information. Give a warning! */ 991 /*
981 if ( dev2->irq && dev2->irq != irq && \ 992 * We refuse to override the dev->irq
993 * information. Give a warning!
994 */
995 if (dev2->irq && dev2->irq != irq && \
982 (!(pci_probe & PCI_USE_PIRQ_MASK) || \ 996 (!(pci_probe & PCI_USE_PIRQ_MASK) || \
983 ((1 << dev2->irq) & mask)) ) { 997 ((1 << dev2->irq) & mask))) {
984#ifndef CONFIG_PCI_MSI 998#ifndef CONFIG_PCI_MSI
985 printk(KERN_INFO "IRQ routing conflict for %s, have irq %d, want irq %d\n", 999 printk(KERN_INFO "IRQ routing conflict for %s, have irq %d, want irq %d\n",
986 pci_name(dev2), dev2->irq, irq); 1000 pci_name(dev2), dev2->irq, irq);
987#endif 1001#endif
988 continue; 1002 continue;
989 } 1003 }
990 dev2->irq = irq; 1004 dev2->irq = irq;
991 pirq_penalty[irq]++; 1005 pirq_penalty[irq]++;
992 if (dev != dev2) 1006 if (dev != dev2)
993 printk(KERN_INFO "PCI: Sharing IRQ %d with %s\n", irq, pci_name(dev2)); 1007 printk(KERN_INFO
1008 "PCI: Sharing IRQ %d with %s\n",
1009 irq, pci_name(dev2));
994 } 1010 }
995 } 1011 }
996 return 1; 1012 return 1;
@@ -1004,15 +1020,21 @@ static void __init pcibios_fixup_irqs(void)
1004 DBG(KERN_DEBUG "PCI: IRQ fixup\n"); 1020 DBG(KERN_DEBUG "PCI: IRQ fixup\n");
1005 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { 1021 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
1006 /* 1022 /*
1007 * If the BIOS has set an out of range IRQ number, just ignore it. 1023 * If the BIOS has set an out of range IRQ number, just
1008 * Also keep track of which IRQ's are already in use. 1024 * ignore it. Also keep track of which IRQ's are
1025 * already in use.
1009 */ 1026 */
1010 if (dev->irq >= 16) { 1027 if (dev->irq >= 16) {
1011 DBG(KERN_DEBUG "%s: ignoring bogus IRQ %d\n", pci_name(dev), dev->irq); 1028 DBG(KERN_DEBUG "%s: ignoring bogus IRQ %d\n",
1029 pci_name(dev), dev->irq);
1012 dev->irq = 0; 1030 dev->irq = 0;
1013 } 1031 }
1014 /* If the IRQ is already assigned to a PCI device, ignore its ISA use penalty */ 1032 /*
1015 if (pirq_penalty[dev->irq] >= 100 && pirq_penalty[dev->irq] < 100000) 1033 * If the IRQ is already assigned to a PCI device,
1034 * ignore its ISA use penalty
1035 */
1036 if (pirq_penalty[dev->irq] >= 100 &&
1037 pirq_penalty[dev->irq] < 100000)
1016 pirq_penalty[dev->irq] = 0; 1038 pirq_penalty[dev->irq] = 0;
1017 pirq_penalty[dev->irq]++; 1039 pirq_penalty[dev->irq]++;
1018 } 1040 }
@@ -1024,13 +1046,17 @@ static void __init pcibios_fixup_irqs(void)
1024 /* 1046 /*
1025 * Recalculate IRQ numbers if we use the I/O APIC. 1047 * Recalculate IRQ numbers if we use the I/O APIC.
1026 */ 1048 */
1027 if (io_apic_assign_pci_irqs) 1049 if (io_apic_assign_pci_irqs) {
1028 {
1029 int irq; 1050 int irq;
1030 1051
1031 if (pin) { 1052 if (pin) {
1032 pin--; /* interrupt pins are numbered starting from 1 */ 1053 /*
1033 irq = IO_APIC_get_PCI_irq_vector(dev->bus->number, PCI_SLOT(dev->devfn), pin); 1054 * interrupt pins are numbered starting
1055 * from 1
1056 */
1057 pin--;
1058 irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
1059 PCI_SLOT(dev->devfn), pin);
1034 /* 1060 /*
1035 * Busses behind bridges are typically not listed in the MP-table. 1061 * Busses behind bridges are typically not listed in the MP-table.
1036 * In this case we have to look up the IRQ based on the parent bus, 1062 * In this case we have to look up the IRQ based on the parent bus,
@@ -1038,10 +1064,10 @@ static void __init pcibios_fixup_irqs(void)
1038 * busses itself so we should get into this branch reliably. 1064 * busses itself so we should get into this branch reliably.
1039 */ 1065 */
1040 if (irq < 0 && dev->bus->parent) { /* go back to the bridge */ 1066 if (irq < 0 && dev->bus->parent) { /* go back to the bridge */
1041 struct pci_dev * bridge = dev->bus->self; 1067 struct pci_dev *bridge = dev->bus->self;
1042 1068
1043 pin = (pin + PCI_SLOT(dev->devfn)) % 4; 1069 pin = (pin + PCI_SLOT(dev->devfn)) % 4;
1044 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number, 1070 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
1045 PCI_SLOT(bridge->devfn), pin); 1071 PCI_SLOT(bridge->devfn), pin);
1046 if (irq >= 0) 1072 if (irq >= 0)
1047 printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n", 1073 printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n",
@@ -1071,7 +1097,8 @@ static int __init fix_broken_hp_bios_irq9(const struct dmi_system_id *d)
1071{ 1097{
1072 if (!broken_hp_bios_irq9) { 1098 if (!broken_hp_bios_irq9) {
1073 broken_hp_bios_irq9 = 1; 1099 broken_hp_bios_irq9 = 1;
1074 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident); 1100 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n",
1101 d->ident);
1075 } 1102 }
1076 return 0; 1103 return 0;
1077} 1104}
@@ -1084,7 +1111,8 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
1084{ 1111{
1085 if (!acer_tm360_irqrouting) { 1112 if (!acer_tm360_irqrouting) {
1086 acer_tm360_irqrouting = 1; 1113 acer_tm360_irqrouting = 1;
1087 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident); 1114 printk(KERN_INFO "%s detected - fixing broken IRQ routing\n",
1115 d->ident);
1088 } 1116 }
1089 return 0; 1117 return 0;
1090} 1118}
@@ -1096,7 +1124,8 @@ static struct dmi_system_id __initdata pciirq_dmi_table[] = {
1096 .matches = { 1124 .matches = {
1097 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1125 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1098 DMI_MATCH(DMI_BIOS_VERSION, "GE.M1.03"), 1126 DMI_MATCH(DMI_BIOS_VERSION, "GE.M1.03"),
1099 DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook Model GE"), 1127 DMI_MATCH(DMI_PRODUCT_VERSION,
1128 "HP Pavilion Notebook Model GE"),
1100 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"), 1129 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
1101 }, 1130 },
1102 }, 1131 },
@@ -1111,7 +1140,7 @@ static struct dmi_system_id __initdata pciirq_dmi_table[] = {
1111 { } 1140 { }
1112}; 1141};
1113 1142
1114static int __init pcibios_irq_init(void) 1143int __init pcibios_irq_init(void)
1115{ 1144{
1116 DBG(KERN_DEBUG "PCI: IRQ init\n"); 1145 DBG(KERN_DEBUG "PCI: IRQ init\n");
1117 1146
@@ -1131,11 +1160,14 @@ static int __init pcibios_irq_init(void)
1131 pirq_find_router(&pirq_router); 1160 pirq_find_router(&pirq_router);
1132 if (pirq_table->exclusive_irqs) { 1161 if (pirq_table->exclusive_irqs) {
1133 int i; 1162 int i;
1134 for (i=0; i<16; i++) 1163 for (i = 0; i < 16; i++)
1135 if (!(pirq_table->exclusive_irqs & (1 << i))) 1164 if (!(pirq_table->exclusive_irqs & (1 << i)))
1136 pirq_penalty[i] += 100; 1165 pirq_penalty[i] += 100;
1137 } 1166 }
1138 /* If we're using the I/O APIC, avoid using the PCI IRQ routing table */ 1167 /*
1168 * If we're using the I/O APIC, avoid using the PCI IRQ
1169 * routing table
1170 */
1139 if (io_apic_assign_pci_irqs) 1171 if (io_apic_assign_pci_irqs)
1140 pirq_table = NULL; 1172 pirq_table = NULL;
1141 } 1173 }
@@ -1146,9 +1178,6 @@ static int __init pcibios_irq_init(void)
1146 return 0; 1178 return 0;
1147} 1179}
1148 1180
1149subsys_initcall(pcibios_irq_init);
1150
1151
1152static void pirq_penalize_isa_irq(int irq, int active) 1181static void pirq_penalize_isa_irq(int irq, int active)
1153{ 1182{
1154 /* 1183 /*
@@ -1182,7 +1211,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
1182 if (pin && !pcibios_lookup_irq(dev, 1) && !dev->irq) { 1211 if (pin && !pcibios_lookup_irq(dev, 1) && !dev->irq) {
1183 char *msg = ""; 1212 char *msg = "";
1184 1213
1185 pin--; /* interrupt pins are numbered starting from 1 */ 1214 pin--; /* interrupt pins are numbered starting from 1 */
1186 1215
1187 if (io_apic_assign_pci_irqs) { 1216 if (io_apic_assign_pci_irqs) {
1188 int irq; 1217 int irq;
@@ -1196,19 +1225,22 @@ static int pirq_enable_irq(struct pci_dev *dev)
1196 */ 1225 */
1197 temp_dev = dev; 1226 temp_dev = dev;
1198 while (irq < 0 && dev->bus->parent) { /* go back to the bridge */ 1227 while (irq < 0 && dev->bus->parent) { /* go back to the bridge */
1199 struct pci_dev * bridge = dev->bus->self; 1228 struct pci_dev *bridge = dev->bus->self;
1200 1229
1201 pin = (pin + PCI_SLOT(dev->devfn)) % 4; 1230 pin = (pin + PCI_SLOT(dev->devfn)) % 4;
1202 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number, 1231 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
1203 PCI_SLOT(bridge->devfn), pin); 1232 PCI_SLOT(bridge->devfn), pin);
1204 if (irq >= 0) 1233 if (irq >= 0)
1205 printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n", 1234 printk(KERN_WARNING
1206 pci_name(bridge), 'A' + pin, irq); 1235 "PCI: using PPB %s[%c] to get irq %d\n",
1236 pci_name(bridge),
1237 'A' + pin, irq);
1207 dev = bridge; 1238 dev = bridge;
1208 } 1239 }
1209 dev = temp_dev; 1240 dev = temp_dev;
1210 if (irq >= 0) { 1241 if (irq >= 0) {
1211 printk(KERN_INFO "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n", 1242 printk(KERN_INFO
1243 "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n",
1212 pci_name(dev), 'A' + pin, irq); 1244 pci_name(dev), 'A' + pin, irq);
1213 dev->irq = irq; 1245 dev->irq = irq;
1214 return 0; 1246 return 0;
@@ -1219,12 +1251,17 @@ static int pirq_enable_irq(struct pci_dev *dev)
1219 else 1251 else
1220 msg = " Please try using pci=biosirq."; 1252 msg = " Please try using pci=biosirq.";
1221 1253
1222 /* With IDE legacy devices the IRQ lookup failure is not a problem.. */ 1254 /*
1223 if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE && !(dev->class & 0x5)) 1255 * With IDE legacy devices the IRQ lookup failure is not
1256 * a problem..
1257 */
1258 if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE &&
1259 !(dev->class & 0x5))
1224 return 0; 1260 return 0;
1225 1261
1226 printk(KERN_WARNING "PCI: No IRQ known for interrupt pin %c of device %s.%s\n", 1262 printk(KERN_WARNING
1227 'A' + pin, pci_name(dev), msg); 1263 "PCI: No IRQ known for interrupt pin %c of device %s.%s\n",
1264 'A' + pin, pci_name(dev), msg);
1228 } 1265 }
1229 return 0; 1266 return 0;
1230} 1267}
diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c
index a67921ce60af..132876cc6fca 100644
--- a/arch/x86/pci/legacy.c
+++ b/arch/x86/pci/legacy.c
@@ -55,4 +55,18 @@ static int __init pci_legacy_init(void)
55 return 0; 55 return 0;
56} 56}
57 57
58subsys_initcall(pci_legacy_init); 58int __init pci_subsys_init(void)
59{
60#ifdef CONFIG_ACPI
61 pci_acpi_init();
62#endif
63 pci_legacy_init();
64 pcibios_irq_init();
65#ifdef CONFIG_X86_NUMAQ
66 pci_numa_init();
67#endif
68 pcibios_init();
69
70 return 0;
71}
72subsys_initcall(pci_subsys_init);
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 0cfebecf2a8f..23faaa890ffc 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -374,7 +374,7 @@ reject:
374 374
375static int __initdata known_bridge; 375static int __initdata known_bridge;
376 376
377void __init __pci_mmcfg_init(int early) 377static void __init __pci_mmcfg_init(int early)
378{ 378{
379 /* MMCONFIG disabled */ 379 /* MMCONFIG disabled */
380 if ((pci_probe & PCI_PROBE_MMCONF) == 0) 380 if ((pci_probe & PCI_PROBE_MMCONF) == 0)
diff --git a/arch/x86/pci/mp_bus_to_node.c b/arch/x86/pci/mp_bus_to_node.c
deleted file mode 100644
index 022943999b84..000000000000
--- a/arch/x86/pci/mp_bus_to_node.c
+++ /dev/null
@@ -1,23 +0,0 @@
1#include <linux/pci.h>
2#include <linux/init.h>
3#include <linux/topology.h>
4
5#define BUS_NR 256
6
7static unsigned char mp_bus_to_node[BUS_NR];
8
9void set_mp_bus_to_node(int busnum, int node)
10{
11 if (busnum >= 0 && busnum < BUS_NR)
12 mp_bus_to_node[busnum] = (unsigned char) node;
13}
14
15int get_mp_bus_to_node(int busnum)
16{
17 int node;
18
19 if (busnum < 0 || busnum > (BUS_NR - 1))
20 return 0;
21 node = mp_bus_to_node[busnum];
22 return node;
23}
diff --git a/arch/x86/pci/numa.c b/arch/x86/pci/numa.c
index d9afbae5092b..8b5ca1966731 100644
--- a/arch/x86/pci/numa.c
+++ b/arch/x86/pci/numa.c
@@ -6,45 +6,21 @@
6#include <linux/init.h> 6#include <linux/init.h>
7#include <linux/nodemask.h> 7#include <linux/nodemask.h>
8#include <mach_apic.h> 8#include <mach_apic.h>
9#include <asm/mpspec.h>
9#include "pci.h" 10#include "pci.h"
10 11
11#define XQUAD_PORTIO_BASE 0xfe400000 12#define XQUAD_PORTIO_BASE 0xfe400000
12#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */ 13#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */
13 14
14int mp_bus_id_to_node[MAX_MP_BUSSES];
15#define BUS2QUAD(global) (mp_bus_id_to_node[global]) 15#define BUS2QUAD(global) (mp_bus_id_to_node[global])
16 16
17int mp_bus_id_to_local[MAX_MP_BUSSES];
18#define BUS2LOCAL(global) (mp_bus_id_to_local[global]) 17#define BUS2LOCAL(global) (mp_bus_id_to_local[global])
19 18
20void mpc_oem_bus_info(struct mpc_config_bus *m, char *name,
21 struct mpc_config_translation *translation)
22{
23 int quad = translation->trans_quad;
24 int local = translation->trans_local;
25
26 mp_bus_id_to_node[m->mpc_busid] = quad;
27 mp_bus_id_to_local[m->mpc_busid] = local;
28 printk(KERN_INFO "Bus #%d is %s (node %d)\n",
29 m->mpc_busid, name, quad);
30}
31
32int quad_local_to_mp_bus_id [NR_CPUS/4][4];
33#define QUADLOCAL2BUS(quad,local) (quad_local_to_mp_bus_id[quad][local]) 19#define QUADLOCAL2BUS(quad,local) (quad_local_to_mp_bus_id[quad][local])
34void mpc_oem_pci_bus(struct mpc_config_bus *m,
35 struct mpc_config_translation *translation)
36{
37 int quad = translation->trans_quad;
38 int local = translation->trans_local;
39
40 quad_local_to_mp_bus_id[quad][local] = m->mpc_busid;
41}
42 20
43/* Where the IO area was mapped on multiquad, always 0 otherwise */ 21/* Where the IO area was mapped on multiquad, always 0 otherwise */
44void *xquad_portio; 22void *xquad_portio;
45#ifdef CONFIG_X86_NUMAQ
46EXPORT_SYMBOL(xquad_portio); 23EXPORT_SYMBOL(xquad_portio);
47#endif
48 24
49#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port) 25#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port)
50 26
@@ -175,10 +151,13 @@ static void __devinit pci_fixup_i450nx(struct pci_dev *d)
175} 151}
176DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx); 152DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx);
177 153
178static int __init pci_numa_init(void) 154int __init pci_numa_init(void)
179{ 155{
180 int quad; 156 int quad;
181 157
158 if (!found_numaq)
159 return 0;
160
182 raw_pci_ops = &pci_direct_conf1_mq; 161 raw_pci_ops = &pci_direct_conf1_mq;
183 162
184 if (pcibios_scanned++) 163 if (pcibios_scanned++)
@@ -197,5 +176,3 @@ static int __init pci_numa_init(void)
197 } 176 }
198 return 0; 177 return 0;
199} 178}
200
201subsys_initcall(pci_numa_init);
diff --git a/arch/x86/pci/olpc.c b/arch/x86/pci/olpc.c
index 5e7636558c02..e11e9e803d5f 100644
--- a/arch/x86/pci/olpc.c
+++ b/arch/x86/pci/olpc.c
@@ -302,12 +302,13 @@ static struct pci_raw_ops pci_olpc_conf = {
302 .write = pci_olpc_write, 302 .write = pci_olpc_write,
303}; 303};
304 304
305void __init pci_olpc_init(void) 305int __init pci_olpc_init(void)
306{ 306{
307 if (!machine_is_olpc() || olpc_has_vsa()) 307 if (!machine_is_olpc() || olpc_has_vsa())
308 return; 308 return -ENODEV;
309 309
310 printk(KERN_INFO "PCI: Using configuration type OLPC\n"); 310 printk(KERN_INFO "PCI: Using configuration type OLPC\n");
311 raw_pci_ops = &pci_olpc_conf; 311 raw_pci_ops = &pci_olpc_conf;
312 is_lx = is_geode_lx(); 312 is_lx = is_geode_lx();
313 return 0;
313} 314}
diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h
index f3972b12c60a..3e25deb821ac 100644
--- a/arch/x86/pci/pci.h
+++ b/arch/x86/pci/pci.h
@@ -27,6 +27,8 @@
27#define PCI_CAN_SKIP_ISA_ALIGN 0x8000 27#define PCI_CAN_SKIP_ISA_ALIGN 0x8000
28#define PCI_USE__CRS 0x10000 28#define PCI_USE__CRS 0x10000
29#define PCI_CHECK_ENABLE_AMD_MMCONF 0x20000 29#define PCI_CHECK_ENABLE_AMD_MMCONF 0x20000
30#define PCI_HAS_IO_ECS 0x40000
31#define PCI_NOASSIGN_ROMS 0x80000
30 32
31extern unsigned int pci_probe; 33extern unsigned int pci_probe;
32extern unsigned long pirq_table_addr; 34extern unsigned long pirq_table_addr;
@@ -38,9 +40,6 @@ enum pci_bf_sort_state {
38 pci_dmi_bf, 40 pci_dmi_bf,
39}; 41};
40 42
41extern void __init dmi_check_pciprobe(void);
42extern void __init dmi_check_skip_isa_align(void);
43
44/* pci-i386.c */ 43/* pci-i386.c */
45 44
46extern unsigned int pcibios_max_latency; 45extern unsigned int pcibios_max_latency;
@@ -98,10 +97,19 @@ extern struct pci_raw_ops *raw_pci_ext_ops;
98 97
99extern struct pci_raw_ops pci_direct_conf1; 98extern struct pci_raw_ops pci_direct_conf1;
100 99
100/* arch_initcall level */
101extern int pci_direct_probe(void); 101extern int pci_direct_probe(void);
102extern void pci_direct_init(int type); 102extern void pci_direct_init(int type);
103extern void pci_pcbios_init(void); 103extern void pci_pcbios_init(void);
104extern void pci_olpc_init(void); 104extern int pci_olpc_init(void);
105extern void __init dmi_check_pciprobe(void);
106extern void __init dmi_check_skip_isa_align(void);
107
108/* some common used subsys_initcalls */
109extern int __init pci_acpi_init(void);
110extern int __init pcibios_irq_init(void);
111extern int __init pci_numa_init(void);
112extern int __init pcibios_init(void);
105 113
106/* pci-mmconfig.c */ 114/* pci-mmconfig.c */
107 115
diff --git a/arch/x86/pci/visws.c b/arch/x86/pci/visws.c
index c2df4e97eed6..1a7bed492bb1 100644
--- a/arch/x86/pci/visws.c
+++ b/arch/x86/pci/visws.c
@@ -8,18 +8,19 @@
8#include <linux/pci.h> 8#include <linux/pci.h>
9#include <linux/init.h> 9#include <linux/init.h>
10 10
11#include "cobalt.h" 11#include <asm/setup.h>
12#include "lithium.h" 12#include <asm/visws/cobalt.h>
13#include <asm/visws/lithium.h>
13 14
14#include "pci.h" 15#include "pci.h"
15 16
16static int pci_visws_enable_irq(struct pci_dev *dev) { return 0; } 17static int pci_visws_enable_irq(struct pci_dev *dev) { return 0; }
17static void pci_visws_disable_irq(struct pci_dev *dev) { } 18static void pci_visws_disable_irq(struct pci_dev *dev) { }
18 19
19int (*pcibios_enable_irq)(struct pci_dev *dev) = &pci_visws_enable_irq; 20/* int (*pcibios_enable_irq)(struct pci_dev *dev) = &pci_visws_enable_irq; */
20void (*pcibios_disable_irq)(struct pci_dev *dev) = &pci_visws_disable_irq; 21/* void (*pcibios_disable_irq)(struct pci_dev *dev) = &pci_visws_disable_irq; */
21 22
22void __init pcibios_penalize_isa_irq(int irq, int active) {} 23/* void __init pcibios_penalize_isa_irq(int irq, int active) {} */
23 24
24 25
25unsigned int pci_bus0, pci_bus1; 26unsigned int pci_bus0, pci_bus1;
@@ -85,7 +86,7 @@ void __init pcibios_update_irq(struct pci_dev *dev, int irq)
85 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); 86 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
86} 87}
87 88
88static int __init pcibios_init(void) 89static int __init pci_visws_init(void)
89{ 90{
90 /* The VISWS supports configuration access type 1 only */ 91 /* The VISWS supports configuration access type 1 only */
91 pci_probe = (pci_probe | PCI_PROBE_CONF1) & 92 pci_probe = (pci_probe | PCI_PROBE_CONF1) &
@@ -105,4 +106,17 @@ static int __init pcibios_init(void)
105 return 0; 106 return 0;
106} 107}
107 108
108subsys_initcall(pcibios_init); 109static __init int pci_subsys_init(void)
110{
111 if (!is_visws_box())
112 return -1;
113
114 pcibios_enable_irq = &pci_visws_enable_irq;
115 pcibios_disable_irq = &pci_visws_disable_irq;
116
117 pci_visws_init();
118 pcibios_init();
119
120 return 0;
121}
122subsys_initcall(pci_subsys_init);
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index b542355e0e34..6dd000dd7933 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -83,7 +83,7 @@ static int set_up_temporary_mappings(void)
83 83
84 /* Set up the direct mapping from scratch */ 84 /* Set up the direct mapping from scratch */
85 start = (unsigned long)pfn_to_kaddr(0); 85 start = (unsigned long)pfn_to_kaddr(0);
86 end = (unsigned long)pfn_to_kaddr(end_pfn); 86 end = (unsigned long)pfn_to_kaddr(max_pfn);
87 87
88 for (; start < end; start = next) { 88 for (; start < end; start = next) {
89 pud_t *pud = (pud_t *)get_safe_page(GFP_ATOMIC); 89 pud_t *pud = (pud_t *)get_safe_page(GFP_ATOMIC);
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index efa2ba7c6005..1ef0f90813d6 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -23,7 +23,7 @@
23 23
24#define gtod vdso_vsyscall_gtod_data 24#define gtod vdso_vsyscall_gtod_data
25 25
26static long vdso_fallback_gettime(long clock, struct timespec *ts) 26notrace static long vdso_fallback_gettime(long clock, struct timespec *ts)
27{ 27{
28 long ret; 28 long ret;
29 asm("syscall" : "=a" (ret) : 29 asm("syscall" : "=a" (ret) :
@@ -31,7 +31,7 @@ static long vdso_fallback_gettime(long clock, struct timespec *ts)
31 return ret; 31 return ret;
32} 32}
33 33
34static inline long vgetns(void) 34notrace static inline long vgetns(void)
35{ 35{
36 long v; 36 long v;
37 cycles_t (*vread)(void); 37 cycles_t (*vread)(void);
@@ -40,7 +40,7 @@ static inline long vgetns(void)
40 return (v * gtod->clock.mult) >> gtod->clock.shift; 40 return (v * gtod->clock.mult) >> gtod->clock.shift;
41} 41}
42 42
43static noinline int do_realtime(struct timespec *ts) 43notrace static noinline int do_realtime(struct timespec *ts)
44{ 44{
45 unsigned long seq, ns; 45 unsigned long seq, ns;
46 do { 46 do {
@@ -54,7 +54,8 @@ static noinline int do_realtime(struct timespec *ts)
54} 54}
55 55
56/* Copy of the version in kernel/time.c which we cannot directly access */ 56/* Copy of the version in kernel/time.c which we cannot directly access */
57static void vset_normalized_timespec(struct timespec *ts, long sec, long nsec) 57notrace static void
58vset_normalized_timespec(struct timespec *ts, long sec, long nsec)
58{ 59{
59 while (nsec >= NSEC_PER_SEC) { 60 while (nsec >= NSEC_PER_SEC) {
60 nsec -= NSEC_PER_SEC; 61 nsec -= NSEC_PER_SEC;
@@ -68,7 +69,7 @@ static void vset_normalized_timespec(struct timespec *ts, long sec, long nsec)
68 ts->tv_nsec = nsec; 69 ts->tv_nsec = nsec;
69} 70}
70 71
71static noinline int do_monotonic(struct timespec *ts) 72notrace static noinline int do_monotonic(struct timespec *ts)
72{ 73{
73 unsigned long seq, ns, secs; 74 unsigned long seq, ns, secs;
74 do { 75 do {
@@ -82,7 +83,7 @@ static noinline int do_monotonic(struct timespec *ts)
82 return 0; 83 return 0;
83} 84}
84 85
85int __vdso_clock_gettime(clockid_t clock, struct timespec *ts) 86notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts)
86{ 87{
87 if (likely(gtod->sysctl_enabled && gtod->clock.vread)) 88 if (likely(gtod->sysctl_enabled && gtod->clock.vread))
88 switch (clock) { 89 switch (clock) {
@@ -96,7 +97,7 @@ int __vdso_clock_gettime(clockid_t clock, struct timespec *ts)
96int clock_gettime(clockid_t, struct timespec *) 97int clock_gettime(clockid_t, struct timespec *)
97 __attribute__((weak, alias("__vdso_clock_gettime"))); 98 __attribute__((weak, alias("__vdso_clock_gettime")));
98 99
99int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) 100notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
100{ 101{
101 long ret; 102 long ret;
102 if (likely(gtod->sysctl_enabled && gtod->clock.vread)) { 103 if (likely(gtod->sysctl_enabled && gtod->clock.vread)) {
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index cf058fecfcee..0bce5429a515 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -203,20 +203,11 @@ static struct page *vdso32_pages[1];
203 203
204#ifdef CONFIG_X86_64 204#ifdef CONFIG_X86_64
205 205
206static int use_sysenter __read_mostly = -1; 206#define vdso32_sysenter() (boot_cpu_has(X86_FEATURE_SYSENTER32))
207
208#define vdso32_sysenter() (use_sysenter > 0)
209 207
210/* May not be __init: called during resume */ 208/* May not be __init: called during resume */
211void syscall32_cpu_init(void) 209void syscall32_cpu_init(void)
212{ 210{
213 if (use_sysenter < 0) {
214 if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
215 use_sysenter = 1;
216 if (boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR)
217 use_sysenter = 1;
218 }
219
220 /* Load these always in case some future AMD CPU supports 211 /* Load these always in case some future AMD CPU supports
221 SYSENTER from compat mode too. */ 212 SYSENTER from compat mode too. */
222 checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS); 213 checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
diff --git a/arch/x86/vdso/vgetcpu.c b/arch/x86/vdso/vgetcpu.c
index c8097f17f8a9..9fbc6b20026b 100644
--- a/arch/x86/vdso/vgetcpu.c
+++ b/arch/x86/vdso/vgetcpu.c
@@ -13,7 +13,8 @@
13#include <asm/vgtod.h> 13#include <asm/vgtod.h>
14#include "vextern.h" 14#include "vextern.h"
15 15
16long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused) 16notrace long
17__vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
17{ 18{
18 unsigned int p; 19 unsigned int p;
19 20
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index 3fdd51497a83..19a6cfaf5db9 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -16,7 +16,7 @@
16#include "vextern.h" /* Just for VMAGIC. */ 16#include "vextern.h" /* Just for VMAGIC. */
17#undef VEXTERN 17#undef VEXTERN
18 18
19int vdso_enabled = 1; 19unsigned int __read_mostly vdso_enabled = 1;
20 20
21extern char vdso_start[], vdso_end[]; 21extern char vdso_start[], vdso_end[];
22extern unsigned short vdso_sync_cpuid; 22extern unsigned short vdso_sync_cpuid;
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 2e641be2737e..c2cc99580871 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -5,9 +5,20 @@
5config XEN 5config XEN
6 bool "Xen guest support" 6 bool "Xen guest support"
7 select PARAVIRT 7 select PARAVIRT
8 select PARAVIRT_CLOCK
8 depends on X86_32 9 depends on X86_32
9 depends on X86_CMPXCHG && X86_TSC && !(X86_VISWS || X86_VOYAGER) 10 depends on X86_CMPXCHG && X86_TSC && X86_PAE && !(X86_VISWS || X86_VOYAGER)
10 help 11 help
11 This is the Linux Xen port. Enabling this will allow the 12 This is the Linux Xen port. Enabling this will allow the
12 kernel to boot in a paravirtualized environment under the 13 kernel to boot in a paravirtualized environment under the
13 Xen hypervisor. 14 Xen hypervisor.
15
16config XEN_MAX_DOMAIN_MEMORY
17 int "Maximum allowed size of a domain in gigabytes"
18 default 8
19 depends on XEN
20 help
21 The pseudo-physical to machine address array is sized
22 according to the maximum possible memory size of a Xen
23 domain. This array uses 1 page per gigabyte, so there's no
24 need to be too stingy here. \ No newline at end of file
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index 3d8df981d5fd..2ba2d1649131 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -1,4 +1,4 @@
1obj-y := enlighten.o setup.o multicalls.o mmu.o \ 1obj-y := enlighten.o setup.o multicalls.o mmu.o \
2 time.o manage.o xen-asm.o grant-table.o 2 time.o xen-asm.o grant-table.o suspend.o
3 3
4obj-$(CONFIG_SMP) += smp.o 4obj-$(CONFIG_SMP) += smp.o
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c8a56e457d61..bb508456ef52 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -45,6 +45,7 @@
45#include <asm/pgtable.h> 45#include <asm/pgtable.h>
46#include <asm/tlbflush.h> 46#include <asm/tlbflush.h>
47#include <asm/reboot.h> 47#include <asm/reboot.h>
48#include <asm/pgalloc.h>
48 49
49#include "xen-ops.h" 50#include "xen-ops.h"
50#include "mmu.h" 51#include "mmu.h"
@@ -75,13 +76,13 @@ DEFINE_PER_CPU(unsigned long, xen_current_cr3); /* actual vcpu cr3 */
75struct start_info *xen_start_info; 76struct start_info *xen_start_info;
76EXPORT_SYMBOL_GPL(xen_start_info); 77EXPORT_SYMBOL_GPL(xen_start_info);
77 78
78static /* __initdata */ struct shared_info dummy_shared_info; 79struct shared_info xen_dummy_shared_info;
79 80
80/* 81/*
81 * Point at some empty memory to start with. We map the real shared_info 82 * Point at some empty memory to start with. We map the real shared_info
82 * page as soon as fixmap is up and running. 83 * page as soon as fixmap is up and running.
83 */ 84 */
84struct shared_info *HYPERVISOR_shared_info = (void *)&dummy_shared_info; 85struct shared_info *HYPERVISOR_shared_info = (void *)&xen_dummy_shared_info;
85 86
86/* 87/*
87 * Flag to determine whether vcpu info placement is available on all 88 * Flag to determine whether vcpu info placement is available on all
@@ -98,13 +99,13 @@ struct shared_info *HYPERVISOR_shared_info = (void *)&dummy_shared_info;
98 */ 99 */
99static int have_vcpu_info_placement = 1; 100static int have_vcpu_info_placement = 1;
100 101
101static void __init xen_vcpu_setup(int cpu) 102static void xen_vcpu_setup(int cpu)
102{ 103{
103 struct vcpu_register_vcpu_info info; 104 struct vcpu_register_vcpu_info info;
104 int err; 105 int err;
105 struct vcpu_info *vcpup; 106 struct vcpu_info *vcpup;
106 107
107 BUG_ON(HYPERVISOR_shared_info == &dummy_shared_info); 108 BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
108 per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu]; 109 per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu];
109 110
110 if (!have_vcpu_info_placement) 111 if (!have_vcpu_info_placement)
@@ -136,11 +137,41 @@ static void __init xen_vcpu_setup(int cpu)
136 } 137 }
137} 138}
138 139
140/*
141 * On restore, set the vcpu placement up again.
142 * If it fails, then we're in a bad state, since
143 * we can't back out from using it...
144 */
145void xen_vcpu_restore(void)
146{
147 if (have_vcpu_info_placement) {
148 int cpu;
149
150 for_each_online_cpu(cpu) {
151 bool other_cpu = (cpu != smp_processor_id());
152
153 if (other_cpu &&
154 HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL))
155 BUG();
156
157 xen_vcpu_setup(cpu);
158
159 if (other_cpu &&
160 HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL))
161 BUG();
162 }
163
164 BUG_ON(!have_vcpu_info_placement);
165 }
166}
167
139static void __init xen_banner(void) 168static void __init xen_banner(void)
140{ 169{
141 printk(KERN_INFO "Booting paravirtualized kernel on %s\n", 170 printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
142 pv_info.name); 171 pv_info.name);
143 printk(KERN_INFO "Hypervisor signature: %s\n", xen_start_info->magic); 172 printk(KERN_INFO "Hypervisor signature: %s%s\n",
173 xen_start_info->magic,
174 xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : "");
144} 175}
145 176
146static void xen_cpuid(unsigned int *ax, unsigned int *bx, 177static void xen_cpuid(unsigned int *ax, unsigned int *bx,
@@ -235,13 +266,13 @@ static void xen_irq_enable(void)
235{ 266{
236 struct vcpu_info *vcpu; 267 struct vcpu_info *vcpu;
237 268
238 /* There's a one instruction preempt window here. We need to 269 /* We don't need to worry about being preempted here, since
239 make sure we're don't switch CPUs between getting the vcpu 270 either a) interrupts are disabled, so no preemption, or b)
240 pointer and updating the mask. */ 271 the caller is confused and is trying to re-enable interrupts
241 preempt_disable(); 272 on an indeterminate processor. */
273
242 vcpu = x86_read_percpu(xen_vcpu); 274 vcpu = x86_read_percpu(xen_vcpu);
243 vcpu->evtchn_upcall_mask = 0; 275 vcpu->evtchn_upcall_mask = 0;
244 preempt_enable_no_resched();
245 276
246 /* Doesn't matter if we get preempted here, because any 277 /* Doesn't matter if we get preempted here, because any
247 pending event will get dealt with anyway. */ 278 pending event will get dealt with anyway. */
@@ -254,7 +285,7 @@ static void xen_irq_enable(void)
254static void xen_safe_halt(void) 285static void xen_safe_halt(void)
255{ 286{
256 /* Blocking includes an implicit local_irq_enable(). */ 287 /* Blocking includes an implicit local_irq_enable(). */
257 if (HYPERVISOR_sched_op(SCHEDOP_block, 0) != 0) 288 if (HYPERVISOR_sched_op(SCHEDOP_block, NULL) != 0)
258 BUG(); 289 BUG();
259} 290}
260 291
@@ -607,6 +638,30 @@ static void xen_flush_tlb_others(const cpumask_t *cpus, struct mm_struct *mm,
607 xen_mc_issue(PARAVIRT_LAZY_MMU); 638 xen_mc_issue(PARAVIRT_LAZY_MMU);
608} 639}
609 640
641static void xen_clts(void)
642{
643 struct multicall_space mcs;
644
645 mcs = xen_mc_entry(0);
646
647 MULTI_fpu_taskswitch(mcs.mc, 0);
648
649 xen_mc_issue(PARAVIRT_LAZY_CPU);
650}
651
652static void xen_write_cr0(unsigned long cr0)
653{
654 struct multicall_space mcs;
655
656 /* Only pay attention to cr0.TS; everything else is
657 ignored. */
658 mcs = xen_mc_entry(0);
659
660 MULTI_fpu_taskswitch(mcs.mc, (cr0 & X86_CR0_TS) != 0);
661
662 xen_mc_issue(PARAVIRT_LAZY_CPU);
663}
664
610static void xen_write_cr2(unsigned long cr2) 665static void xen_write_cr2(unsigned long cr2)
611{ 666{
612 x86_read_percpu(xen_vcpu)->arch.cr2 = cr2; 667 x86_read_percpu(xen_vcpu)->arch.cr2 = cr2;
@@ -624,8 +679,10 @@ static unsigned long xen_read_cr2_direct(void)
624 679
625static void xen_write_cr4(unsigned long cr4) 680static void xen_write_cr4(unsigned long cr4)
626{ 681{
627 /* Just ignore cr4 changes; Xen doesn't allow us to do 682 cr4 &= ~X86_CR4_PGE;
628 anything anyway. */ 683 cr4 &= ~X86_CR4_PSE;
684
685 native_write_cr4(cr4);
629} 686}
630 687
631static unsigned long xen_read_cr3(void) 688static unsigned long xen_read_cr3(void)
@@ -785,38 +842,35 @@ static __init void xen_set_pte_init(pte_t *ptep, pte_t pte)
785static __init void xen_pagetable_setup_start(pgd_t *base) 842static __init void xen_pagetable_setup_start(pgd_t *base)
786{ 843{
787 pgd_t *xen_pgd = (pgd_t *)xen_start_info->pt_base; 844 pgd_t *xen_pgd = (pgd_t *)xen_start_info->pt_base;
845 int i;
788 846
789 /* special set_pte for pagetable initialization */ 847 /* special set_pte for pagetable initialization */
790 pv_mmu_ops.set_pte = xen_set_pte_init; 848 pv_mmu_ops.set_pte = xen_set_pte_init;
791 849
792 init_mm.pgd = base; 850 init_mm.pgd = base;
793 /* 851 /*
794 * copy top-level of Xen-supplied pagetable into place. For 852 * copy top-level of Xen-supplied pagetable into place. This
795 * !PAE we can use this as-is, but for PAE it is a stand-in 853 * is a stand-in while we copy the pmd pages.
796 * while we copy the pmd pages.
797 */ 854 */
798 memcpy(base, xen_pgd, PTRS_PER_PGD * sizeof(pgd_t)); 855 memcpy(base, xen_pgd, PTRS_PER_PGD * sizeof(pgd_t));
799 856
800 if (PTRS_PER_PMD > 1) { 857 /*
801 int i; 858 * For PAE, need to allocate new pmds, rather than
802 /* 859 * share Xen's, since Xen doesn't like pmd's being
803 * For PAE, need to allocate new pmds, rather than 860 * shared between address spaces.
804 * share Xen's, since Xen doesn't like pmd's being 861 */
805 * shared between address spaces. 862 for (i = 0; i < PTRS_PER_PGD; i++) {
806 */ 863 if (pgd_val_ma(xen_pgd[i]) & _PAGE_PRESENT) {
807 for (i = 0; i < PTRS_PER_PGD; i++) { 864 pmd_t *pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
808 if (pgd_val_ma(xen_pgd[i]) & _PAGE_PRESENT) {
809 pmd_t *pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
810 865
811 memcpy(pmd, (void *)pgd_page_vaddr(xen_pgd[i]), 866 memcpy(pmd, (void *)pgd_page_vaddr(xen_pgd[i]),
812 PAGE_SIZE); 867 PAGE_SIZE);
813 868
814 make_lowmem_page_readonly(pmd); 869 make_lowmem_page_readonly(pmd);
815 870
816 set_pgd(&base[i], __pgd(1 + __pa(pmd))); 871 set_pgd(&base[i], __pgd(1 + __pa(pmd)));
817 } else 872 } else
818 pgd_clear(&base[i]); 873 pgd_clear(&base[i]);
819 }
820 } 874 }
821 875
822 /* make sure zero_page is mapped RO so we can use it in pagetables */ 876 /* make sure zero_page is mapped RO so we can use it in pagetables */
@@ -834,7 +888,7 @@ static __init void xen_pagetable_setup_start(pgd_t *base)
834 PFN_DOWN(__pa(xen_start_info->pt_base))); 888 PFN_DOWN(__pa(xen_start_info->pt_base)));
835} 889}
836 890
837static __init void setup_shared_info(void) 891void xen_setup_shared_info(void)
838{ 892{
839 if (!xen_feature(XENFEAT_auto_translated_physmap)) { 893 if (!xen_feature(XENFEAT_auto_translated_physmap)) {
840 unsigned long addr = fix_to_virt(FIX_PARAVIRT_BOOTMAP); 894 unsigned long addr = fix_to_virt(FIX_PARAVIRT_BOOTMAP);
@@ -857,6 +911,8 @@ static __init void setup_shared_info(void)
857 /* In UP this is as good a place as any to set up shared info */ 911 /* In UP this is as good a place as any to set up shared info */
858 xen_setup_vcpu_info_placement(); 912 xen_setup_vcpu_info_placement();
859#endif 913#endif
914
915 xen_setup_mfn_list_list();
860} 916}
861 917
862static __init void xen_pagetable_setup_done(pgd_t *base) 918static __init void xen_pagetable_setup_done(pgd_t *base)
@@ -869,25 +925,23 @@ static __init void xen_pagetable_setup_done(pgd_t *base)
869 pv_mmu_ops.release_pmd = xen_release_pmd; 925 pv_mmu_ops.release_pmd = xen_release_pmd;
870 pv_mmu_ops.set_pte = xen_set_pte; 926 pv_mmu_ops.set_pte = xen_set_pte;
871 927
872 setup_shared_info(); 928 xen_setup_shared_info();
873 929
874 /* Actually pin the pagetable down, but we can't set PG_pinned 930 /* Actually pin the pagetable down, but we can't set PG_pinned
875 yet because the page structures don't exist yet. */ 931 yet because the page structures don't exist yet. */
876 { 932 pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(base)));
877 unsigned level; 933}
878 934
879#ifdef CONFIG_X86_PAE 935static __init void xen_post_allocator_init(void)
880 level = MMUEXT_PIN_L3_TABLE; 936{
881#else 937 pv_mmu_ops.set_pmd = xen_set_pmd;
882 level = MMUEXT_PIN_L2_TABLE; 938 pv_mmu_ops.set_pud = xen_set_pud;
883#endif
884 939
885 pin_pagetable_pfn(level, PFN_DOWN(__pa(base))); 940 xen_mark_init_mm_pinned();
886 }
887} 941}
888 942
889/* This is called once we have the cpu_possible_map */ 943/* This is called once we have the cpu_possible_map */
890void __init xen_setup_vcpu_info_placement(void) 944void xen_setup_vcpu_info_placement(void)
891{ 945{
892 int cpu; 946 int cpu;
893 947
@@ -960,6 +1014,33 @@ static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf,
960 return ret; 1014 return ret;
961} 1015}
962 1016
1017static void xen_set_fixmap(unsigned idx, unsigned long phys, pgprot_t prot)
1018{
1019 pte_t pte;
1020
1021 phys >>= PAGE_SHIFT;
1022
1023 switch (idx) {
1024 case FIX_BTMAP_END ... FIX_BTMAP_BEGIN:
1025#ifdef CONFIG_X86_F00F_BUG
1026 case FIX_F00F_IDT:
1027#endif
1028 case FIX_WP_TEST:
1029 case FIX_VDSO:
1030#ifdef CONFIG_X86_LOCAL_APIC
1031 case FIX_APIC_BASE: /* maps dummy local APIC */
1032#endif
1033 pte = pfn_pte(phys, prot);
1034 break;
1035
1036 default:
1037 pte = mfn_pte(phys, prot);
1038 break;
1039 }
1040
1041 __native_set_fixmap(idx, pte);
1042}
1043
963static const struct pv_info xen_info __initdata = { 1044static const struct pv_info xen_info __initdata = {
964 .paravirt_enabled = 1, 1045 .paravirt_enabled = 1,
965 .shared_kernel_pmd = 0, 1046 .shared_kernel_pmd = 0,
@@ -973,7 +1054,7 @@ static const struct pv_init_ops xen_init_ops __initdata = {
973 .banner = xen_banner, 1054 .banner = xen_banner,
974 .memory_setup = xen_memory_setup, 1055 .memory_setup = xen_memory_setup,
975 .arch_setup = xen_arch_setup, 1056 .arch_setup = xen_arch_setup,
976 .post_allocator_init = xen_mark_init_mm_pinned, 1057 .post_allocator_init = xen_post_allocator_init,
977}; 1058};
978 1059
979static const struct pv_time_ops xen_time_ops __initdata = { 1060static const struct pv_time_ops xen_time_ops __initdata = {
@@ -981,7 +1062,7 @@ static const struct pv_time_ops xen_time_ops __initdata = {
981 1062
982 .set_wallclock = xen_set_wallclock, 1063 .set_wallclock = xen_set_wallclock,
983 .get_wallclock = xen_get_wallclock, 1064 .get_wallclock = xen_get_wallclock,
984 .get_cpu_khz = xen_cpu_khz, 1065 .get_tsc_khz = xen_tsc_khz,
985 .sched_clock = xen_sched_clock, 1066 .sched_clock = xen_sched_clock,
986}; 1067};
987 1068
@@ -991,10 +1072,10 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
991 .set_debugreg = xen_set_debugreg, 1072 .set_debugreg = xen_set_debugreg,
992 .get_debugreg = xen_get_debugreg, 1073 .get_debugreg = xen_get_debugreg,
993 1074
994 .clts = native_clts, 1075 .clts = xen_clts,
995 1076
996 .read_cr0 = native_read_cr0, 1077 .read_cr0 = native_read_cr0,
997 .write_cr0 = native_write_cr0, 1078 .write_cr0 = xen_write_cr0,
998 1079
999 .read_cr4 = native_read_cr4, 1080 .read_cr4 = native_read_cr4,
1000 .read_cr4_safe = native_read_cr4_safe, 1081 .read_cr4_safe = native_read_cr4_safe,
@@ -1008,7 +1089,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
1008 .read_pmc = native_read_pmc, 1089 .read_pmc = native_read_pmc,
1009 1090
1010 .iret = xen_iret, 1091 .iret = xen_iret,
1011 .irq_enable_syscall_ret = xen_sysexit, 1092 .irq_enable_sysexit = xen_sysexit,
1012 1093
1013 .load_tr_desc = paravirt_nop, 1094 .load_tr_desc = paravirt_nop,
1014 .set_ldt = xen_set_ldt, 1095 .set_ldt = xen_set_ldt,
@@ -1042,6 +1123,9 @@ static const struct pv_irq_ops xen_irq_ops __initdata = {
1042 .irq_enable = xen_irq_enable, 1123 .irq_enable = xen_irq_enable,
1043 .safe_halt = xen_safe_halt, 1124 .safe_halt = xen_safe_halt,
1044 .halt = xen_halt, 1125 .halt = xen_halt,
1126#ifdef CONFIG_X86_64
1127 .adjust_exception_frame = paravirt_nop,
1128#endif
1045}; 1129};
1046 1130
1047static const struct pv_apic_ops xen_apic_ops __initdata = { 1131static const struct pv_apic_ops xen_apic_ops __initdata = {
@@ -1073,6 +1157,9 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = {
1073 .pte_update = paravirt_nop, 1157 .pte_update = paravirt_nop,
1074 .pte_update_defer = paravirt_nop, 1158 .pte_update_defer = paravirt_nop,
1075 1159
1160 .pgd_alloc = __paravirt_pgd_alloc,
1161 .pgd_free = paravirt_nop,
1162
1076 .alloc_pte = xen_alloc_pte_init, 1163 .alloc_pte = xen_alloc_pte_init,
1077 .release_pte = xen_release_pte_init, 1164 .release_pte = xen_release_pte_init,
1078 .alloc_pmd = xen_alloc_pte_init, 1165 .alloc_pmd = xen_alloc_pte_init,
@@ -1085,24 +1172,26 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = {
1085 1172
1086 .set_pte = NULL, /* see xen_pagetable_setup_* */ 1173 .set_pte = NULL, /* see xen_pagetable_setup_* */
1087 .set_pte_at = xen_set_pte_at, 1174 .set_pte_at = xen_set_pte_at,
1088 .set_pmd = xen_set_pmd, 1175 .set_pmd = xen_set_pmd_hyper,
1176
1177 .ptep_modify_prot_start = __ptep_modify_prot_start,
1178 .ptep_modify_prot_commit = __ptep_modify_prot_commit,
1089 1179
1090 .pte_val = xen_pte_val, 1180 .pte_val = xen_pte_val,
1181 .pte_flags = native_pte_val,
1091 .pgd_val = xen_pgd_val, 1182 .pgd_val = xen_pgd_val,
1092 1183
1093 .make_pte = xen_make_pte, 1184 .make_pte = xen_make_pte,
1094 .make_pgd = xen_make_pgd, 1185 .make_pgd = xen_make_pgd,
1095 1186
1096#ifdef CONFIG_X86_PAE
1097 .set_pte_atomic = xen_set_pte_atomic, 1187 .set_pte_atomic = xen_set_pte_atomic,
1098 .set_pte_present = xen_set_pte_at, 1188 .set_pte_present = xen_set_pte_at,
1099 .set_pud = xen_set_pud, 1189 .set_pud = xen_set_pud_hyper,
1100 .pte_clear = xen_pte_clear, 1190 .pte_clear = xen_pte_clear,
1101 .pmd_clear = xen_pmd_clear, 1191 .pmd_clear = xen_pmd_clear,
1102 1192
1103 .make_pmd = xen_make_pmd, 1193 .make_pmd = xen_make_pmd,
1104 .pmd_val = xen_pmd_val, 1194 .pmd_val = xen_pmd_val,
1105#endif /* PAE */
1106 1195
1107 .activate_mm = xen_activate_mm, 1196 .activate_mm = xen_activate_mm,
1108 .dup_mmap = xen_dup_mmap, 1197 .dup_mmap = xen_dup_mmap,
@@ -1112,6 +1201,8 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = {
1112 .enter = paravirt_enter_lazy_mmu, 1201 .enter = paravirt_enter_lazy_mmu,
1113 .leave = xen_leave_lazy, 1202 .leave = xen_leave_lazy,
1114 }, 1203 },
1204
1205 .set_fixmap = xen_set_fixmap,
1115}; 1206};
1116 1207
1117#ifdef CONFIG_SMP 1208#ifdef CONFIG_SMP
@@ -1123,17 +1214,21 @@ static const struct smp_ops xen_smp_ops __initdata = {
1123 1214
1124 .smp_send_stop = xen_smp_send_stop, 1215 .smp_send_stop = xen_smp_send_stop,
1125 .smp_send_reschedule = xen_smp_send_reschedule, 1216 .smp_send_reschedule = xen_smp_send_reschedule,
1126 .smp_call_function_mask = xen_smp_call_function_mask, 1217
1218 .send_call_func_ipi = xen_smp_send_call_function_ipi,
1219 .send_call_func_single_ipi = xen_smp_send_call_function_single_ipi,
1127}; 1220};
1128#endif /* CONFIG_SMP */ 1221#endif /* CONFIG_SMP */
1129 1222
1130static void xen_reboot(int reason) 1223static void xen_reboot(int reason)
1131{ 1224{
1225 struct sched_shutdown r = { .reason = reason };
1226
1132#ifdef CONFIG_SMP 1227#ifdef CONFIG_SMP
1133 smp_send_stop(); 1228 smp_send_stop();
1134#endif 1229#endif
1135 1230
1136 if (HYPERVISOR_sched_op(SCHEDOP_shutdown, reason)) 1231 if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
1137 BUG(); 1232 BUG();
1138} 1233}
1139 1234
@@ -1188,6 +1283,8 @@ asmlinkage void __init xen_start_kernel(void)
1188 1283
1189 BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0); 1284 BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0);
1190 1285
1286 xen_setup_features();
1287
1191 /* Install Xen paravirt ops */ 1288 /* Install Xen paravirt ops */
1192 pv_info = xen_info; 1289 pv_info = xen_info;
1193 pv_init_ops = xen_init_ops; 1290 pv_init_ops = xen_init_ops;
@@ -1197,21 +1294,26 @@ asmlinkage void __init xen_start_kernel(void)
1197 pv_apic_ops = xen_apic_ops; 1294 pv_apic_ops = xen_apic_ops;
1198 pv_mmu_ops = xen_mmu_ops; 1295 pv_mmu_ops = xen_mmu_ops;
1199 1296
1297 if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) {
1298 pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start;
1299 pv_mmu_ops.ptep_modify_prot_commit = xen_ptep_modify_prot_commit;
1300 }
1301
1200 machine_ops = xen_machine_ops; 1302 machine_ops = xen_machine_ops;
1201 1303
1202#ifdef CONFIG_SMP 1304#ifdef CONFIG_SMP
1203 smp_ops = xen_smp_ops; 1305 smp_ops = xen_smp_ops;
1204#endif 1306#endif
1205 1307
1206 xen_setup_features();
1207
1208 /* Get mfn list */ 1308 /* Get mfn list */
1209 if (!xen_feature(XENFEAT_auto_translated_physmap)) 1309 if (!xen_feature(XENFEAT_auto_translated_physmap))
1210 phys_to_machine_mapping = (unsigned long *)xen_start_info->mfn_list; 1310 xen_build_dynamic_phys_to_machine();
1211 1311
1212 pgd = (pgd_t *)xen_start_info->pt_base; 1312 pgd = (pgd_t *)xen_start_info->pt_base;
1213 1313
1314 init_pg_tables_start = __pa(pgd);
1214 init_pg_tables_end = __pa(pgd) + xen_start_info->nr_pt_frames*PAGE_SIZE; 1315 init_pg_tables_end = __pa(pgd) + xen_start_info->nr_pt_frames*PAGE_SIZE;
1316 max_pfn_mapped = (init_pg_tables_end + 512*1024) >> PAGE_SHIFT;
1215 1317
1216 init_mm.pgd = pgd; /* use the Xen pagetables to start */ 1318 init_mm.pgd = pgd; /* use the Xen pagetables to start */
1217 1319
@@ -1228,6 +1330,11 @@ asmlinkage void __init xen_start_kernel(void)
1228 if (xen_feature(XENFEAT_supervisor_mode_kernel)) 1330 if (xen_feature(XENFEAT_supervisor_mode_kernel))
1229 pv_info.kernel_rpl = 0; 1331 pv_info.kernel_rpl = 0;
1230 1332
1333 /* Prevent unwanted bits from being set in PTEs. */
1334 __supported_pte_mask &= ~_PAGE_GLOBAL;
1335 if (!is_initial_xendomain())
1336 __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
1337
1231 /* set the limit of our address space */ 1338 /* set the limit of our address space */
1232 xen_reserve_top(); 1339 xen_reserve_top();
1233 1340
@@ -1242,9 +1349,12 @@ asmlinkage void __init xen_start_kernel(void)
1242 ? __pa(xen_start_info->mod_start) : 0; 1349 ? __pa(xen_start_info->mod_start) : 0;
1243 boot_params.hdr.ramdisk_size = xen_start_info->mod_len; 1350 boot_params.hdr.ramdisk_size = xen_start_info->mod_len;
1244 1351
1245 if (!is_initial_xendomain()) 1352 if (!is_initial_xendomain()) {
1353 add_preferred_console("xenboot", 0, NULL);
1354 add_preferred_console("tty", 0, NULL);
1246 add_preferred_console("hvc", 0, NULL); 1355 add_preferred_console("hvc", 0, NULL);
1356 }
1247 1357
1248 /* Start the world */ 1358 /* Start the world */
1249 start_kernel(); 1359 i386_start_kernel();
1250} 1360}
diff --git a/arch/x86/xen/manage.c b/arch/x86/xen/manage.c
deleted file mode 100644
index aa7af9e6abc0..000000000000
--- a/arch/x86/xen/manage.c
+++ /dev/null
@@ -1,143 +0,0 @@
1/*
2 * Handle extern requests for shutdown, reboot and sysrq
3 */
4#include <linux/kernel.h>
5#include <linux/err.h>
6#include <linux/reboot.h>
7#include <linux/sysrq.h>
8
9#include <xen/xenbus.h>
10
11#define SHUTDOWN_INVALID -1
12#define SHUTDOWN_POWEROFF 0
13#define SHUTDOWN_SUSPEND 2
14/* Code 3 is SHUTDOWN_CRASH, which we don't use because the domain can only
15 * report a crash, not be instructed to crash!
16 * HALT is the same as POWEROFF, as far as we're concerned. The tools use
17 * the distinction when we return the reason code to them.
18 */
19#define SHUTDOWN_HALT 4
20
21/* Ignore multiple shutdown requests. */
22static int shutting_down = SHUTDOWN_INVALID;
23
24static void shutdown_handler(struct xenbus_watch *watch,
25 const char **vec, unsigned int len)
26{
27 char *str;
28 struct xenbus_transaction xbt;
29 int err;
30
31 if (shutting_down != SHUTDOWN_INVALID)
32 return;
33
34 again:
35 err = xenbus_transaction_start(&xbt);
36 if (err)
37 return;
38
39 str = (char *)xenbus_read(xbt, "control", "shutdown", NULL);
40 /* Ignore read errors and empty reads. */
41 if (XENBUS_IS_ERR_READ(str)) {
42 xenbus_transaction_end(xbt, 1);
43 return;
44 }
45
46 xenbus_write(xbt, "control", "shutdown", "");
47
48 err = xenbus_transaction_end(xbt, 0);
49 if (err == -EAGAIN) {
50 kfree(str);
51 goto again;
52 }
53
54 if (strcmp(str, "poweroff") == 0 ||
55 strcmp(str, "halt") == 0)
56 orderly_poweroff(false);
57 else if (strcmp(str, "reboot") == 0)
58 ctrl_alt_del();
59 else {
60 printk(KERN_INFO "Ignoring shutdown request: %s\n", str);
61 shutting_down = SHUTDOWN_INVALID;
62 }
63
64 kfree(str);
65}
66
67static void sysrq_handler(struct xenbus_watch *watch, const char **vec,
68 unsigned int len)
69{
70 char sysrq_key = '\0';
71 struct xenbus_transaction xbt;
72 int err;
73
74 again:
75 err = xenbus_transaction_start(&xbt);
76 if (err)
77 return;
78 if (!xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key)) {
79 printk(KERN_ERR "Unable to read sysrq code in "
80 "control/sysrq\n");
81 xenbus_transaction_end(xbt, 1);
82 return;
83 }
84
85 if (sysrq_key != '\0')
86 xenbus_printf(xbt, "control", "sysrq", "%c", '\0');
87
88 err = xenbus_transaction_end(xbt, 0);
89 if (err == -EAGAIN)
90 goto again;
91
92 if (sysrq_key != '\0')
93 handle_sysrq(sysrq_key, NULL);
94}
95
96static struct xenbus_watch shutdown_watch = {
97 .node = "control/shutdown",
98 .callback = shutdown_handler
99};
100
101static struct xenbus_watch sysrq_watch = {
102 .node = "control/sysrq",
103 .callback = sysrq_handler
104};
105
106static int setup_shutdown_watcher(void)
107{
108 int err;
109
110 err = register_xenbus_watch(&shutdown_watch);
111 if (err) {
112 printk(KERN_ERR "Failed to set shutdown watcher\n");
113 return err;
114 }
115
116 err = register_xenbus_watch(&sysrq_watch);
117 if (err) {
118 printk(KERN_ERR "Failed to set sysrq watcher\n");
119 return err;
120 }
121
122 return 0;
123}
124
125static int shutdown_event(struct notifier_block *notifier,
126 unsigned long event,
127 void *data)
128{
129 setup_shutdown_watcher();
130 return NOTIFY_DONE;
131}
132
133static int __init setup_shutdown_event(void)
134{
135 static struct notifier_block xenstore_notifier = {
136 .notifier_call = shutdown_event
137 };
138 register_xenstore_notifier(&xenstore_notifier);
139
140 return 0;
141}
142
143subsys_initcall(setup_shutdown_event);
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 3525ef523a74..ff0aa74afaa1 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -56,6 +56,131 @@
56#include "multicalls.h" 56#include "multicalls.h"
57#include "mmu.h" 57#include "mmu.h"
58 58
59#define P2M_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof(unsigned long))
60#define TOP_ENTRIES (MAX_DOMAIN_PAGES / P2M_ENTRIES_PER_PAGE)
61
62/* Placeholder for holes in the address space */
63static unsigned long p2m_missing[P2M_ENTRIES_PER_PAGE]
64 __attribute__((section(".data.page_aligned"))) =
65 { [ 0 ... P2M_ENTRIES_PER_PAGE-1 ] = ~0UL };
66
67 /* Array of pointers to pages containing p2m entries */
68static unsigned long *p2m_top[TOP_ENTRIES]
69 __attribute__((section(".data.page_aligned"))) =
70 { [ 0 ... TOP_ENTRIES - 1] = &p2m_missing[0] };
71
72/* Arrays of p2m arrays expressed in mfns used for save/restore */
73static unsigned long p2m_top_mfn[TOP_ENTRIES]
74 __attribute__((section(".bss.page_aligned")));
75
76static unsigned long p2m_top_mfn_list[
77 PAGE_ALIGN(TOP_ENTRIES / P2M_ENTRIES_PER_PAGE)]
78 __attribute__((section(".bss.page_aligned")));
79
80static inline unsigned p2m_top_index(unsigned long pfn)
81{
82 BUG_ON(pfn >= MAX_DOMAIN_PAGES);
83 return pfn / P2M_ENTRIES_PER_PAGE;
84}
85
86static inline unsigned p2m_index(unsigned long pfn)
87{
88 return pfn % P2M_ENTRIES_PER_PAGE;
89}
90
91/* Build the parallel p2m_top_mfn structures */
92void xen_setup_mfn_list_list(void)
93{
94 unsigned pfn, idx;
95
96 for(pfn = 0; pfn < MAX_DOMAIN_PAGES; pfn += P2M_ENTRIES_PER_PAGE) {
97 unsigned topidx = p2m_top_index(pfn);
98
99 p2m_top_mfn[topidx] = virt_to_mfn(p2m_top[topidx]);
100 }
101
102 for(idx = 0; idx < ARRAY_SIZE(p2m_top_mfn_list); idx++) {
103 unsigned topidx = idx * P2M_ENTRIES_PER_PAGE;
104 p2m_top_mfn_list[idx] = virt_to_mfn(&p2m_top_mfn[topidx]);
105 }
106
107 BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
108
109 HYPERVISOR_shared_info->arch.pfn_to_mfn_frame_list_list =
110 virt_to_mfn(p2m_top_mfn_list);
111 HYPERVISOR_shared_info->arch.max_pfn = xen_start_info->nr_pages;
112}
113
114/* Set up p2m_top to point to the domain-builder provided p2m pages */
115void __init xen_build_dynamic_phys_to_machine(void)
116{
117 unsigned long *mfn_list = (unsigned long *)xen_start_info->mfn_list;
118 unsigned long max_pfn = min(MAX_DOMAIN_PAGES, xen_start_info->nr_pages);
119 unsigned pfn;
120
121 for(pfn = 0; pfn < max_pfn; pfn += P2M_ENTRIES_PER_PAGE) {
122 unsigned topidx = p2m_top_index(pfn);
123
124 p2m_top[topidx] = &mfn_list[pfn];
125 }
126}
127
128unsigned long get_phys_to_machine(unsigned long pfn)
129{
130 unsigned topidx, idx;
131
132 if (unlikely(pfn >= MAX_DOMAIN_PAGES))
133 return INVALID_P2M_ENTRY;
134
135 topidx = p2m_top_index(pfn);
136 idx = p2m_index(pfn);
137 return p2m_top[topidx][idx];
138}
139EXPORT_SYMBOL_GPL(get_phys_to_machine);
140
141static void alloc_p2m(unsigned long **pp, unsigned long *mfnp)
142{
143 unsigned long *p;
144 unsigned i;
145
146 p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
147 BUG_ON(p == NULL);
148
149 for(i = 0; i < P2M_ENTRIES_PER_PAGE; i++)
150 p[i] = INVALID_P2M_ENTRY;
151
152 if (cmpxchg(pp, p2m_missing, p) != p2m_missing)
153 free_page((unsigned long)p);
154 else
155 *mfnp = virt_to_mfn(p);
156}
157
158void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
159{
160 unsigned topidx, idx;
161
162 if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) {
163 BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
164 return;
165 }
166
167 if (unlikely(pfn >= MAX_DOMAIN_PAGES)) {
168 BUG_ON(mfn != INVALID_P2M_ENTRY);
169 return;
170 }
171
172 topidx = p2m_top_index(pfn);
173 if (p2m_top[topidx] == p2m_missing) {
174 /* no need to allocate a page to store an invalid entry */
175 if (mfn == INVALID_P2M_ENTRY)
176 return;
177 alloc_p2m(&p2m_top[topidx], &p2m_top_mfn[topidx]);
178 }
179
180 idx = p2m_index(pfn);
181 p2m_top[topidx][idx] = mfn;
182}
183
59xmaddr_t arbitrary_virt_to_machine(unsigned long address) 184xmaddr_t arbitrary_virt_to_machine(unsigned long address)
60{ 185{
61 unsigned int level; 186 unsigned int level;
@@ -98,24 +223,60 @@ void make_lowmem_page_readwrite(void *vaddr)
98} 223}
99 224
100 225
101void xen_set_pmd(pmd_t *ptr, pmd_t val) 226static bool page_pinned(void *ptr)
227{
228 struct page *page = virt_to_page(ptr);
229
230 return PagePinned(page);
231}
232
233static void extend_mmu_update(const struct mmu_update *update)
102{ 234{
103 struct multicall_space mcs; 235 struct multicall_space mcs;
104 struct mmu_update *u; 236 struct mmu_update *u;
105 237
106 preempt_disable(); 238 mcs = xen_mc_extend_args(__HYPERVISOR_mmu_update, sizeof(*u));
239
240 if (mcs.mc != NULL)
241 mcs.mc->args[1]++;
242 else {
243 mcs = __xen_mc_entry(sizeof(*u));
244 MULTI_mmu_update(mcs.mc, mcs.args, 1, NULL, DOMID_SELF);
245 }
107 246
108 mcs = xen_mc_entry(sizeof(*u));
109 u = mcs.args; 247 u = mcs.args;
110 u->ptr = virt_to_machine(ptr).maddr; 248 *u = *update;
111 u->val = pmd_val_ma(val); 249}
112 MULTI_mmu_update(mcs.mc, u, 1, NULL, DOMID_SELF); 250
251void xen_set_pmd_hyper(pmd_t *ptr, pmd_t val)
252{
253 struct mmu_update u;
254
255 preempt_disable();
256
257 xen_mc_batch();
258
259 u.ptr = virt_to_machine(ptr).maddr;
260 u.val = pmd_val_ma(val);
261 extend_mmu_update(&u);
113 262
114 xen_mc_issue(PARAVIRT_LAZY_MMU); 263 xen_mc_issue(PARAVIRT_LAZY_MMU);
115 264
116 preempt_enable(); 265 preempt_enable();
117} 266}
118 267
268void xen_set_pmd(pmd_t *ptr, pmd_t val)
269{
270 /* If page is not pinned, we can just update the entry
271 directly */
272 if (!page_pinned(ptr)) {
273 *ptr = val;
274 return;
275 }
276
277 xen_set_pmd_hyper(ptr, val);
278}
279
119/* 280/*
120 * Associate a virtual page frame with a given physical page frame 281 * Associate a virtual page frame with a given physical page frame
121 * and protection flags for that frame. 282 * and protection flags for that frame.
@@ -179,68 +340,105 @@ out:
179 preempt_enable(); 340 preempt_enable();
180} 341}
181 342
182pteval_t xen_pte_val(pte_t pte) 343pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
183{ 344{
184 pteval_t ret = pte.pte; 345 /* Just return the pte as-is. We preserve the bits on commit */
346 return *ptep;
347}
348
349void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
350 pte_t *ptep, pte_t pte)
351{
352 struct mmu_update u;
353
354 xen_mc_batch();
185 355
186 if (ret & _PAGE_PRESENT) 356 u.ptr = virt_to_machine(ptep).maddr | MMU_PT_UPDATE_PRESERVE_AD;
187 ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT; 357 u.val = pte_val_ma(pte);
358 extend_mmu_update(&u);
188 359
189 return ret; 360 xen_mc_issue(PARAVIRT_LAZY_MMU);
190} 361}
191 362
192pgdval_t xen_pgd_val(pgd_t pgd) 363/* Assume pteval_t is equivalent to all the other *val_t types. */
364static pteval_t pte_mfn_to_pfn(pteval_t val)
193{ 365{
194 pgdval_t ret = pgd.pgd; 366 if (val & _PAGE_PRESENT) {
195 if (ret & _PAGE_PRESENT) 367 unsigned long mfn = (val & PTE_MASK) >> PAGE_SHIFT;
196 ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT; 368 pteval_t flags = val & ~PTE_MASK;
197 return ret; 369 val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags;
370 }
371
372 return val;
198} 373}
199 374
200pte_t xen_make_pte(pteval_t pte) 375static pteval_t pte_pfn_to_mfn(pteval_t val)
201{ 376{
202 if (pte & _PAGE_PRESENT) { 377 if (val & _PAGE_PRESENT) {
203 pte = phys_to_machine(XPADDR(pte)).maddr; 378 unsigned long pfn = (val & PTE_MASK) >> PAGE_SHIFT;
204 pte &= ~(_PAGE_PCD | _PAGE_PWT); 379 pteval_t flags = val & ~PTE_MASK;
380 val = ((pteval_t)pfn_to_mfn(pfn) << PAGE_SHIFT) | flags;
205 } 381 }
206 382
207 return (pte_t){ .pte = pte }; 383 return val;
208} 384}
209 385
210pgd_t xen_make_pgd(pgdval_t pgd) 386pteval_t xen_pte_val(pte_t pte)
211{ 387{
212 if (pgd & _PAGE_PRESENT) 388 return pte_mfn_to_pfn(pte.pte);
213 pgd = phys_to_machine(XPADDR(pgd)).maddr; 389}
214 390
215 return (pgd_t){ pgd }; 391pgdval_t xen_pgd_val(pgd_t pgd)
392{
393 return pte_mfn_to_pfn(pgd.pgd);
394}
395
396pte_t xen_make_pte(pteval_t pte)
397{
398 pte = pte_pfn_to_mfn(pte);
399 return native_make_pte(pte);
400}
401
402pgd_t xen_make_pgd(pgdval_t pgd)
403{
404 pgd = pte_pfn_to_mfn(pgd);
405 return native_make_pgd(pgd);
216} 406}
217 407
218pmdval_t xen_pmd_val(pmd_t pmd) 408pmdval_t xen_pmd_val(pmd_t pmd)
219{ 409{
220 pmdval_t ret = native_pmd_val(pmd); 410 return pte_mfn_to_pfn(pmd.pmd);
221 if (ret & _PAGE_PRESENT)
222 ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
223 return ret;
224} 411}
225#ifdef CONFIG_X86_PAE 412
226void xen_set_pud(pud_t *ptr, pud_t val) 413void xen_set_pud_hyper(pud_t *ptr, pud_t val)
227{ 414{
228 struct multicall_space mcs; 415 struct mmu_update u;
229 struct mmu_update *u;
230 416
231 preempt_disable(); 417 preempt_disable();
232 418
233 mcs = xen_mc_entry(sizeof(*u)); 419 xen_mc_batch();
234 u = mcs.args; 420
235 u->ptr = virt_to_machine(ptr).maddr; 421 u.ptr = virt_to_machine(ptr).maddr;
236 u->val = pud_val_ma(val); 422 u.val = pud_val_ma(val);
237 MULTI_mmu_update(mcs.mc, u, 1, NULL, DOMID_SELF); 423 extend_mmu_update(&u);
238 424
239 xen_mc_issue(PARAVIRT_LAZY_MMU); 425 xen_mc_issue(PARAVIRT_LAZY_MMU);
240 426
241 preempt_enable(); 427 preempt_enable();
242} 428}
243 429
430void xen_set_pud(pud_t *ptr, pud_t val)
431{
432 /* If page is not pinned, we can just update the entry
433 directly */
434 if (!page_pinned(ptr)) {
435 *ptr = val;
436 return;
437 }
438
439 xen_set_pud_hyper(ptr, val);
440}
441
244void xen_set_pte(pte_t *ptep, pte_t pte) 442void xen_set_pte(pte_t *ptep, pte_t pte)
245{ 443{
246 ptep->pte_high = pte.pte_high; 444 ptep->pte_high = pte.pte_high;
@@ -262,22 +460,14 @@ void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
262 460
263void xen_pmd_clear(pmd_t *pmdp) 461void xen_pmd_clear(pmd_t *pmdp)
264{ 462{
265 xen_set_pmd(pmdp, __pmd(0)); 463 set_pmd(pmdp, __pmd(0));
266} 464}
267 465
268pmd_t xen_make_pmd(pmdval_t pmd) 466pmd_t xen_make_pmd(pmdval_t pmd)
269{ 467{
270 if (pmd & _PAGE_PRESENT) 468 pmd = pte_pfn_to_mfn(pmd);
271 pmd = phys_to_machine(XPADDR(pmd)).maddr;
272
273 return native_make_pmd(pmd); 469 return native_make_pmd(pmd);
274} 470}
275#else /* !PAE */
276void xen_set_pte(pte_t *ptep, pte_t pte)
277{
278 *ptep = pte;
279}
280#endif /* CONFIG_X86_PAE */
281 471
282/* 472/*
283 (Yet another) pagetable walker. This one is intended for pinning a 473 (Yet another) pagetable walker. This one is intended for pinning a
@@ -430,8 +620,6 @@ static int pin_page(struct page *page, enum pt_level level)
430 read-only, and can be pinned. */ 620 read-only, and can be pinned. */
431void xen_pgd_pin(pgd_t *pgd) 621void xen_pgd_pin(pgd_t *pgd)
432{ 622{
433 unsigned level;
434
435 xen_mc_batch(); 623 xen_mc_batch();
436 624
437 if (pgd_walk(pgd, pin_page, TASK_SIZE)) { 625 if (pgd_walk(pgd, pin_page, TASK_SIZE)) {
@@ -441,15 +629,31 @@ void xen_pgd_pin(pgd_t *pgd)
441 xen_mc_batch(); 629 xen_mc_batch();
442 } 630 }
443 631
444#ifdef CONFIG_X86_PAE 632 xen_do_pin(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(pgd)));
445 level = MMUEXT_PIN_L3_TABLE; 633 xen_mc_issue(0);
446#else 634}
447 level = MMUEXT_PIN_L2_TABLE; 635
448#endif 636/*
637 * On save, we need to pin all pagetables to make sure they get their
638 * mfns turned into pfns. Search the list for any unpinned pgds and pin
639 * them (unpinned pgds are not currently in use, probably because the
640 * process is under construction or destruction).
641 */
642void xen_mm_pin_all(void)
643{
644 unsigned long flags;
645 struct page *page;
449 646
450 xen_do_pin(level, PFN_DOWN(__pa(pgd))); 647 spin_lock_irqsave(&pgd_lock, flags);
451 648
452 xen_mc_issue(0); 649 list_for_each_entry(page, &pgd_list, lru) {
650 if (!PagePinned(page)) {
651 xen_pgd_pin((pgd_t *)page_address(page));
652 SetPageSavePinned(page);
653 }
654 }
655
656 spin_unlock_irqrestore(&pgd_lock, flags);
453} 657}
454 658
455/* The init_mm pagetable is really pinned as soon as its created, but 659/* The init_mm pagetable is really pinned as soon as its created, but
@@ -509,6 +713,29 @@ static void xen_pgd_unpin(pgd_t *pgd)
509 xen_mc_issue(0); 713 xen_mc_issue(0);
510} 714}
511 715
716/*
717 * On resume, undo any pinning done at save, so that the rest of the
718 * kernel doesn't see any unexpected pinned pagetables.
719 */
720void xen_mm_unpin_all(void)
721{
722 unsigned long flags;
723 struct page *page;
724
725 spin_lock_irqsave(&pgd_lock, flags);
726
727 list_for_each_entry(page, &pgd_list, lru) {
728 if (PageSavePinned(page)) {
729 BUG_ON(!PagePinned(page));
730 printk("unpinning pinned %p\n", page_address(page));
731 xen_pgd_unpin((pgd_t *)page_address(page));
732 ClearPageSavePinned(page);
733 }
734 }
735
736 spin_unlock_irqrestore(&pgd_lock, flags);
737}
738
512void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next) 739void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next)
513{ 740{
514 spin_lock(&next->page_table_lock); 741 spin_lock(&next->page_table_lock);
@@ -569,7 +796,7 @@ static void drop_mm_ref(struct mm_struct *mm)
569 } 796 }
570 797
571 if (!cpus_empty(mask)) 798 if (!cpus_empty(mask))
572 xen_smp_call_function_mask(mask, drop_other_mm_ref, mm, 1); 799 smp_call_function_mask(mask, drop_other_mm_ref, mm, 1);
573} 800}
574#else 801#else
575static void drop_mm_ref(struct mm_struct *mm) 802static void drop_mm_ref(struct mm_struct *mm)
@@ -602,7 +829,7 @@ void xen_exit_mmap(struct mm_struct *mm)
602 spin_lock(&mm->page_table_lock); 829 spin_lock(&mm->page_table_lock);
603 830
604 /* pgd may not be pinned in the error exit path of execve */ 831 /* pgd may not be pinned in the error exit path of execve */
605 if (PagePinned(virt_to_page(mm->pgd))) 832 if (page_pinned(mm->pgd))
606 xen_pgd_unpin(mm->pgd); 833 xen_pgd_unpin(mm->pgd);
607 834
608 spin_unlock(&mm->page_table_lock); 835 spin_unlock(&mm->page_table_lock);
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index b5e189b1519d..297bf9f5b8bc 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -25,10 +25,6 @@ enum pt_level {
25 25
26void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); 26void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
27 27
28void xen_set_pte(pte_t *ptep, pte_t pteval);
29void xen_set_pte_at(struct mm_struct *mm, unsigned long addr,
30 pte_t *ptep, pte_t pteval);
31void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval);
32 28
33void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next); 29void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next);
34void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm); 30void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm);
@@ -37,31 +33,27 @@ void xen_exit_mmap(struct mm_struct *mm);
37void xen_pgd_pin(pgd_t *pgd); 33void xen_pgd_pin(pgd_t *pgd);
38//void xen_pgd_unpin(pgd_t *pgd); 34//void xen_pgd_unpin(pgd_t *pgd);
39 35
40#ifdef CONFIG_X86_PAE 36pteval_t xen_pte_val(pte_t);
41unsigned long long xen_pte_val(pte_t); 37pmdval_t xen_pmd_val(pmd_t);
42unsigned long long xen_pmd_val(pmd_t); 38pgdval_t xen_pgd_val(pgd_t);
43unsigned long long xen_pgd_val(pgd_t);
44 39
45pte_t xen_make_pte(unsigned long long); 40pte_t xen_make_pte(pteval_t);
46pmd_t xen_make_pmd(unsigned long long); 41pmd_t xen_make_pmd(pmdval_t);
47pgd_t xen_make_pgd(unsigned long long); 42pgd_t xen_make_pgd(pgdval_t);
48 43
44void xen_set_pte(pte_t *ptep, pte_t pteval);
49void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, 45void xen_set_pte_at(struct mm_struct *mm, unsigned long addr,
50 pte_t *ptep, pte_t pteval); 46 pte_t *ptep, pte_t pteval);
51void xen_set_pte_atomic(pte_t *ptep, pte_t pte); 47void xen_set_pte_atomic(pte_t *ptep, pte_t pte);
48void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval);
52void xen_set_pud(pud_t *ptr, pud_t val); 49void xen_set_pud(pud_t *ptr, pud_t val);
50void xen_set_pmd_hyper(pmd_t *pmdp, pmd_t pmdval);
51void xen_set_pud_hyper(pud_t *ptr, pud_t val);
53void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); 52void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
54void xen_pmd_clear(pmd_t *pmdp); 53void xen_pmd_clear(pmd_t *pmdp);
55 54
56 55pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
57#else 56void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
58unsigned long xen_pte_val(pte_t); 57 pte_t *ptep, pte_t pte);
59unsigned long xen_pmd_val(pmd_t);
60unsigned long xen_pgd_val(pgd_t);
61
62pte_t xen_make_pte(unsigned long);
63pmd_t xen_make_pmd(unsigned long);
64pgd_t xen_make_pgd(unsigned long);
65#endif
66 58
67#endif /* _XEN_MMU_H */ 59#endif /* _XEN_MMU_H */
diff --git a/arch/x86/xen/multicalls.c b/arch/x86/xen/multicalls.c
index 5791eb2e3750..3c63c4da7ed1 100644
--- a/arch/x86/xen/multicalls.c
+++ b/arch/x86/xen/multicalls.c
@@ -29,14 +29,14 @@
29#define MC_DEBUG 1 29#define MC_DEBUG 1
30 30
31#define MC_BATCH 32 31#define MC_BATCH 32
32#define MC_ARGS (MC_BATCH * 16 / sizeof(u64)) 32#define MC_ARGS (MC_BATCH * 16)
33 33
34struct mc_buffer { 34struct mc_buffer {
35 struct multicall_entry entries[MC_BATCH]; 35 struct multicall_entry entries[MC_BATCH];
36#if MC_DEBUG 36#if MC_DEBUG
37 struct multicall_entry debug[MC_BATCH]; 37 struct multicall_entry debug[MC_BATCH];
38#endif 38#endif
39 u64 args[MC_ARGS]; 39 unsigned char args[MC_ARGS];
40 struct callback { 40 struct callback {
41 void (*fn)(void *); 41 void (*fn)(void *);
42 void *data; 42 void *data;
@@ -107,20 +107,48 @@ struct multicall_space __xen_mc_entry(size_t args)
107{ 107{
108 struct mc_buffer *b = &__get_cpu_var(mc_buffer); 108 struct mc_buffer *b = &__get_cpu_var(mc_buffer);
109 struct multicall_space ret; 109 struct multicall_space ret;
110 unsigned argspace = (args + sizeof(u64) - 1) / sizeof(u64); 110 unsigned argidx = roundup(b->argidx, sizeof(u64));
111 111
112 BUG_ON(preemptible()); 112 BUG_ON(preemptible());
113 BUG_ON(argspace > MC_ARGS); 113 BUG_ON(b->argidx > MC_ARGS);
114 114
115 if (b->mcidx == MC_BATCH || 115 if (b->mcidx == MC_BATCH ||
116 (b->argidx + argspace) > MC_ARGS) 116 (argidx + args) > MC_ARGS) {
117 xen_mc_flush(); 117 xen_mc_flush();
118 argidx = roundup(b->argidx, sizeof(u64));
119 }
118 120
119 ret.mc = &b->entries[b->mcidx]; 121 ret.mc = &b->entries[b->mcidx];
120 b->mcidx++; 122 b->mcidx++;
123 ret.args = &b->args[argidx];
124 b->argidx = argidx + args;
125
126 BUG_ON(b->argidx > MC_ARGS);
127 return ret;
128}
129
130struct multicall_space xen_mc_extend_args(unsigned long op, size_t size)
131{
132 struct mc_buffer *b = &__get_cpu_var(mc_buffer);
133 struct multicall_space ret = { NULL, NULL };
134
135 BUG_ON(preemptible());
136 BUG_ON(b->argidx > MC_ARGS);
137
138 if (b->mcidx == 0)
139 return ret;
140
141 if (b->entries[b->mcidx - 1].op != op)
142 return ret;
143
144 if ((b->argidx + size) > MC_ARGS)
145 return ret;
146
147 ret.mc = &b->entries[b->mcidx - 1];
121 ret.args = &b->args[b->argidx]; 148 ret.args = &b->args[b->argidx];
122 b->argidx += argspace; 149 b->argidx += size;
123 150
151 BUG_ON(b->argidx > MC_ARGS);
124 return ret; 152 return ret;
125} 153}
126 154
diff --git a/arch/x86/xen/multicalls.h b/arch/x86/xen/multicalls.h
index 8bae996d99a3..858938241616 100644
--- a/arch/x86/xen/multicalls.h
+++ b/arch/x86/xen/multicalls.h
@@ -45,4 +45,16 @@ static inline void xen_mc_issue(unsigned mode)
45/* Set up a callback to be called when the current batch is flushed */ 45/* Set up a callback to be called when the current batch is flushed */
46void xen_mc_callback(void (*fn)(void *), void *data); 46void xen_mc_callback(void (*fn)(void *), void *data);
47 47
48/*
49 * Try to extend the arguments of the previous multicall command. The
50 * previous command's op must match. If it does, then it attempts to
51 * extend the argument space allocated to the multicall entry by
52 * arg_size bytes.
53 *
54 * The returned multicall_space will return with mc pointing to the
55 * command on success, or NULL on failure, and args pointing to the
56 * newly allocated space.
57 */
58struct multicall_space xen_mc_extend_args(unsigned long op, size_t arg_size);
59
48#endif /* _XEN_MULTICALLS_H */ 60#endif /* _XEN_MULTICALLS_H */
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 82517e4a752a..e0a39595bde3 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -13,9 +13,11 @@
13#include <asm/vdso.h> 13#include <asm/vdso.h>
14#include <asm/e820.h> 14#include <asm/e820.h>
15#include <asm/setup.h> 15#include <asm/setup.h>
16#include <asm/acpi.h>
16#include <asm/xen/hypervisor.h> 17#include <asm/xen/hypervisor.h>
17#include <asm/xen/hypercall.h> 18#include <asm/xen/hypercall.h>
18 19
20#include <xen/page.h>
19#include <xen/interface/callback.h> 21#include <xen/interface/callback.h>
20#include <xen/interface/physdev.h> 22#include <xen/interface/physdev.h>
21#include <xen/features.h> 23#include <xen/features.h>
@@ -27,8 +29,6 @@
27extern const char xen_hypervisor_callback[]; 29extern const char xen_hypervisor_callback[];
28extern const char xen_failsafe_callback[]; 30extern const char xen_failsafe_callback[];
29 31
30unsigned long *phys_to_machine_mapping;
31EXPORT_SYMBOL(phys_to_machine_mapping);
32 32
33/** 33/**
34 * machine_specific_memory_setup - Hook for machine specific memory setup. 34 * machine_specific_memory_setup - Hook for machine specific memory setup.
@@ -38,9 +38,31 @@ char * __init xen_memory_setup(void)
38{ 38{
39 unsigned long max_pfn = xen_start_info->nr_pages; 39 unsigned long max_pfn = xen_start_info->nr_pages;
40 40
41 max_pfn = min(MAX_DOMAIN_PAGES, max_pfn);
42
41 e820.nr_map = 0; 43 e820.nr_map = 0;
42 add_memory_region(0, LOWMEMSIZE(), E820_RAM); 44
43 add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM); 45 e820_add_region(0, PFN_PHYS(max_pfn), E820_RAM);
46
47 /*
48 * Even though this is normal, usable memory under Xen, reserve
49 * ISA memory anyway because too many things think they can poke
50 * about in there.
51 */
52 e820_add_region(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS,
53 E820_RESERVED);
54
55 /*
56 * Reserve Xen bits:
57 * - mfn_list
58 * - xen_start_info
59 * See comment above "struct start_info" in <xen/interface/xen.h>
60 */
61 e820_add_region(__pa(xen_start_info->mfn_list),
62 xen_start_info->pt_base - xen_start_info->mfn_list,
63 E820_RESERVED);
64
65 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
44 66
45 return "Xen"; 67 return "Xen";
46} 68}
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 94e69000f982..233156f39b7f 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -35,28 +35,15 @@
35#include "xen-ops.h" 35#include "xen-ops.h"
36#include "mmu.h" 36#include "mmu.h"
37 37
38static cpumask_t xen_cpu_initialized_map; 38cpumask_t xen_cpu_initialized_map;
39static DEFINE_PER_CPU(int, resched_irq) = -1;
40static DEFINE_PER_CPU(int, callfunc_irq) = -1;
41static DEFINE_PER_CPU(int, debug_irq) = -1;
42
43/*
44 * Structure and data for smp_call_function(). This is designed to minimise
45 * static memory requirements. It also looks cleaner.
46 */
47static DEFINE_SPINLOCK(call_lock);
48 39
49struct call_data_struct { 40static DEFINE_PER_CPU(int, resched_irq);
50 void (*func) (void *info); 41static DEFINE_PER_CPU(int, callfunc_irq);
51 void *info; 42static DEFINE_PER_CPU(int, callfuncsingle_irq);
52 atomic_t started; 43static DEFINE_PER_CPU(int, debug_irq) = -1;
53 atomic_t finished;
54 int wait;
55};
56 44
57static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id); 45static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id);
58 46static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id);
59static struct call_data_struct *call_data;
60 47
61/* 48/*
62 * Reschedule call back. Nothing to do, 49 * Reschedule call back. Nothing to do,
@@ -65,6 +52,12 @@ static struct call_data_struct *call_data;
65 */ 52 */
66static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id) 53static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id)
67{ 54{
55#ifdef CONFIG_X86_32
56 __get_cpu_var(irq_stat).irq_resched_count++;
57#else
58 add_pda(irq_resched_count, 1);
59#endif
60
68 return IRQ_HANDLED; 61 return IRQ_HANDLED;
69} 62}
70 63
@@ -122,6 +115,17 @@ static int xen_smp_intr_init(unsigned int cpu)
122 goto fail; 115 goto fail;
123 per_cpu(debug_irq, cpu) = rc; 116 per_cpu(debug_irq, cpu) = rc;
124 117
118 callfunc_name = kasprintf(GFP_KERNEL, "callfuncsingle%d", cpu);
119 rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_SINGLE_VECTOR,
120 cpu,
121 xen_call_function_single_interrupt,
122 IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
123 callfunc_name,
124 NULL);
125 if (rc < 0)
126 goto fail;
127 per_cpu(callfuncsingle_irq, cpu) = rc;
128
125 return 0; 129 return 0;
126 130
127 fail: 131 fail:
@@ -131,6 +135,9 @@ static int xen_smp_intr_init(unsigned int cpu)
131 unbind_from_irqhandler(per_cpu(callfunc_irq, cpu), NULL); 135 unbind_from_irqhandler(per_cpu(callfunc_irq, cpu), NULL);
132 if (per_cpu(debug_irq, cpu) >= 0) 136 if (per_cpu(debug_irq, cpu) >= 0)
133 unbind_from_irqhandler(per_cpu(debug_irq, cpu), NULL); 137 unbind_from_irqhandler(per_cpu(debug_irq, cpu), NULL);
138 if (per_cpu(callfuncsingle_irq, cpu) >= 0)
139 unbind_from_irqhandler(per_cpu(callfuncsingle_irq, cpu), NULL);
140
134 return rc; 141 return rc;
135} 142}
136 143
@@ -330,7 +337,7 @@ static void stop_self(void *v)
330 337
331void xen_smp_send_stop(void) 338void xen_smp_send_stop(void)
332{ 339{
333 smp_call_function(stop_self, NULL, 0, 0); 340 smp_call_function(stop_self, NULL, 0);
334} 341}
335 342
336void xen_smp_send_reschedule(int cpu) 343void xen_smp_send_reschedule(int cpu)
@@ -338,7 +345,6 @@ void xen_smp_send_reschedule(int cpu)
338 xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR); 345 xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR);
339} 346}
340 347
341
342static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector) 348static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector)
343{ 349{
344 unsigned cpu; 350 unsigned cpu;
@@ -349,83 +355,42 @@ static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector)
349 xen_send_IPI_one(cpu, vector); 355 xen_send_IPI_one(cpu, vector);
350} 356}
351 357
358void xen_smp_send_call_function_ipi(cpumask_t mask)
359{
360 int cpu;
361
362 xen_send_IPI_mask(mask, XEN_CALL_FUNCTION_VECTOR);
363
364 /* Make sure other vcpus get a chance to run if they need to. */
365 for_each_cpu_mask(cpu, mask) {
366 if (xen_vcpu_stolen(cpu)) {
367 HYPERVISOR_sched_op(SCHEDOP_yield, 0);
368 break;
369 }
370 }
371}
372
373void xen_smp_send_call_function_single_ipi(int cpu)
374{
375 xen_send_IPI_mask(cpumask_of_cpu(cpu), XEN_CALL_FUNCTION_SINGLE_VECTOR);
376}
377
352static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id) 378static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id)
353{ 379{
354 void (*func) (void *info) = call_data->func;
355 void *info = call_data->info;
356 int wait = call_data->wait;
357
358 /*
359 * Notify initiating CPU that I've grabbed the data and am
360 * about to execute the function
361 */
362 mb();
363 atomic_inc(&call_data->started);
364 /*
365 * At this point the info structure may be out of scope unless wait==1
366 */
367 irq_enter(); 380 irq_enter();
368 (*func)(info); 381 generic_smp_call_function_interrupt();
369 __get_cpu_var(irq_stat).irq_call_count++; 382 __get_cpu_var(irq_stat).irq_call_count++;
370 irq_exit(); 383 irq_exit();
371 384
372 if (wait) {
373 mb(); /* commit everything before setting finished */
374 atomic_inc(&call_data->finished);
375 }
376
377 return IRQ_HANDLED; 385 return IRQ_HANDLED;
378} 386}
379 387
380int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *), 388static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id)
381 void *info, int wait)
382{ 389{
383 struct call_data_struct data; 390 irq_enter();
384 int cpus, cpu; 391 generic_smp_call_function_single_interrupt();
385 bool yield; 392 __get_cpu_var(irq_stat).irq_call_count++;
386 393 irq_exit();
387 /* Holding any lock stops cpus from going down. */
388 spin_lock(&call_lock);
389
390 cpu_clear(smp_processor_id(), mask);
391
392 cpus = cpus_weight(mask);
393 if (!cpus) {
394 spin_unlock(&call_lock);
395 return 0;
396 }
397
398 /* Can deadlock when called with interrupts disabled */
399 WARN_ON(irqs_disabled());
400
401 data.func = func;
402 data.info = info;
403 atomic_set(&data.started, 0);
404 data.wait = wait;
405 if (wait)
406 atomic_set(&data.finished, 0);
407
408 call_data = &data;
409 mb(); /* write everything before IPI */
410
411 /* Send a message to other CPUs and wait for them to respond */
412 xen_send_IPI_mask(mask, XEN_CALL_FUNCTION_VECTOR);
413
414 /* Make sure other vcpus get a chance to run if they need to. */
415 yield = false;
416 for_each_cpu_mask(cpu, mask)
417 if (xen_vcpu_stolen(cpu))
418 yield = true;
419
420 if (yield)
421 HYPERVISOR_sched_op(SCHEDOP_yield, 0);
422
423 /* Wait for response */
424 while (atomic_read(&data.started) != cpus ||
425 (wait && atomic_read(&data.finished) != cpus))
426 cpu_relax();
427
428 spin_unlock(&call_lock);
429 394
430 return 0; 395 return IRQ_HANDLED;
431} 396}
diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
new file mode 100644
index 000000000000..251669a932d4
--- /dev/null
+++ b/arch/x86/xen/suspend.c
@@ -0,0 +1,45 @@
1#include <linux/types.h>
2
3#include <xen/interface/xen.h>
4#include <xen/grant_table.h>
5#include <xen/events.h>
6
7#include <asm/xen/hypercall.h>
8#include <asm/xen/page.h>
9
10#include "xen-ops.h"
11#include "mmu.h"
12
13void xen_pre_suspend(void)
14{
15 xen_start_info->store_mfn = mfn_to_pfn(xen_start_info->store_mfn);
16 xen_start_info->console.domU.mfn =
17 mfn_to_pfn(xen_start_info->console.domU.mfn);
18
19 BUG_ON(!irqs_disabled());
20
21 HYPERVISOR_shared_info = &xen_dummy_shared_info;
22 if (HYPERVISOR_update_va_mapping(fix_to_virt(FIX_PARAVIRT_BOOTMAP),
23 __pte_ma(0), 0))
24 BUG();
25}
26
27void xen_post_suspend(int suspend_cancelled)
28{
29 xen_setup_shared_info();
30
31 if (suspend_cancelled) {
32 xen_start_info->store_mfn =
33 pfn_to_mfn(xen_start_info->store_mfn);
34 xen_start_info->console.domU.mfn =
35 pfn_to_mfn(xen_start_info->console.domU.mfn);
36 } else {
37#ifdef CONFIG_SMP
38 xen_cpu_initialized_map = cpu_online_map;
39#endif
40 xen_vcpu_restore();
41 xen_timer_resume();
42 }
43
44}
45
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index c39e1a5aa241..685b77470fc3 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -12,7 +12,9 @@
12#include <linux/clocksource.h> 12#include <linux/clocksource.h>
13#include <linux/clockchips.h> 13#include <linux/clockchips.h>
14#include <linux/kernel_stat.h> 14#include <linux/kernel_stat.h>
15#include <linux/math64.h>
15 16
17#include <asm/pvclock.h>
16#include <asm/xen/hypervisor.h> 18#include <asm/xen/hypervisor.h>
17#include <asm/xen/hypercall.h> 19#include <asm/xen/hypercall.h>
18 20
@@ -30,17 +32,6 @@
30 32
31static cycle_t xen_clocksource_read(void); 33static cycle_t xen_clocksource_read(void);
32 34
33/* These are perodically updated in shared_info, and then copied here. */
34struct shadow_time_info {
35 u64 tsc_timestamp; /* TSC at last update of time vals. */
36 u64 system_timestamp; /* Time, in nanosecs, since boot. */
37 u32 tsc_to_nsec_mul;
38 int tsc_shift;
39 u32 version;
40};
41
42static DEFINE_PER_CPU(struct shadow_time_info, shadow_time);
43
44/* runstate info updated by Xen */ 35/* runstate info updated by Xen */
45static DEFINE_PER_CPU(struct vcpu_runstate_info, runstate); 36static DEFINE_PER_CPU(struct vcpu_runstate_info, runstate);
46 37
@@ -150,11 +141,7 @@ static void do_stolen_accounting(void)
150 if (stolen < 0) 141 if (stolen < 0)
151 stolen = 0; 142 stolen = 0;
152 143
153 ticks = 0; 144 ticks = iter_div_u64_rem(stolen, NS_PER_TICK, &stolen);
154 while (stolen >= NS_PER_TICK) {
155 ticks++;
156 stolen -= NS_PER_TICK;
157 }
158 __get_cpu_var(residual_stolen) = stolen; 145 __get_cpu_var(residual_stolen) = stolen;
159 account_steal_time(NULL, ticks); 146 account_steal_time(NULL, ticks);
160 147
@@ -166,11 +153,7 @@ static void do_stolen_accounting(void)
166 if (blocked < 0) 153 if (blocked < 0)
167 blocked = 0; 154 blocked = 0;
168 155
169 ticks = 0; 156 ticks = iter_div_u64_rem(blocked, NS_PER_TICK, &blocked);
170 while (blocked >= NS_PER_TICK) {
171 ticks++;
172 blocked -= NS_PER_TICK;
173 }
174 __get_cpu_var(residual_blocked) = blocked; 157 __get_cpu_var(residual_blocked) = blocked;
175 account_steal_time(idle_task(smp_processor_id()), ticks); 158 account_steal_time(idle_task(smp_processor_id()), ticks);
176} 159}
@@ -214,11 +197,11 @@ unsigned long long xen_sched_clock(void)
214} 197}
215 198
216 199
217/* Get the CPU speed from Xen */ 200/* Get the TSC speed from Xen */
218unsigned long xen_cpu_khz(void) 201unsigned long xen_tsc_khz(void)
219{ 202{
220 u64 xen_khz = 1000000ULL << 32; 203 u64 xen_khz = 1000000ULL << 32;
221 const struct vcpu_time_info *info = 204 const struct pvclock_vcpu_time_info *info =
222 &HYPERVISOR_shared_info->vcpu_info[0].time; 205 &HYPERVISOR_shared_info->vcpu_info[0].time;
223 206
224 do_div(xen_khz, info->tsc_to_system_mul); 207 do_div(xen_khz, info->tsc_to_system_mul);
@@ -230,121 +213,26 @@ unsigned long xen_cpu_khz(void)
230 return xen_khz; 213 return xen_khz;
231} 214}
232 215
233/*
234 * Reads a consistent set of time-base values from Xen, into a shadow data
235 * area.
236 */
237static unsigned get_time_values_from_xen(void)
238{
239 struct vcpu_time_info *src;
240 struct shadow_time_info *dst;
241
242 /* src is shared memory with the hypervisor, so we need to
243 make sure we get a consistent snapshot, even in the face of
244 being preempted. */
245 src = &__get_cpu_var(xen_vcpu)->time;
246 dst = &__get_cpu_var(shadow_time);
247
248 do {
249 dst->version = src->version;
250 rmb(); /* fetch version before data */
251 dst->tsc_timestamp = src->tsc_timestamp;
252 dst->system_timestamp = src->system_time;
253 dst->tsc_to_nsec_mul = src->tsc_to_system_mul;
254 dst->tsc_shift = src->tsc_shift;
255 rmb(); /* test version after fetching data */
256 } while ((src->version & 1) | (dst->version ^ src->version));
257
258 return dst->version;
259}
260
261/*
262 * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction,
263 * yielding a 64-bit result.
264 */
265static inline u64 scale_delta(u64 delta, u32 mul_frac, int shift)
266{
267 u64 product;
268#ifdef __i386__
269 u32 tmp1, tmp2;
270#endif
271
272 if (shift < 0)
273 delta >>= -shift;
274 else
275 delta <<= shift;
276
277#ifdef __i386__
278 __asm__ (
279 "mul %5 ; "
280 "mov %4,%%eax ; "
281 "mov %%edx,%4 ; "
282 "mul %5 ; "
283 "xor %5,%5 ; "
284 "add %4,%%eax ; "
285 "adc %5,%%edx ; "
286 : "=A" (product), "=r" (tmp1), "=r" (tmp2)
287 : "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) );
288#elif __x86_64__
289 __asm__ (
290 "mul %%rdx ; shrd $32,%%rdx,%%rax"
291 : "=a" (product) : "0" (delta), "d" ((u64)mul_frac) );
292#else
293#error implement me!
294#endif
295
296 return product;
297}
298
299static u64 get_nsec_offset(struct shadow_time_info *shadow)
300{
301 u64 now, delta;
302 now = native_read_tsc();
303 delta = now - shadow->tsc_timestamp;
304 return scale_delta(delta, shadow->tsc_to_nsec_mul, shadow->tsc_shift);
305}
306
307static cycle_t xen_clocksource_read(void) 216static cycle_t xen_clocksource_read(void)
308{ 217{
309 struct shadow_time_info *shadow = &get_cpu_var(shadow_time); 218 struct pvclock_vcpu_time_info *src;
310 cycle_t ret; 219 cycle_t ret;
311 unsigned version;
312
313 do {
314 version = get_time_values_from_xen();
315 barrier();
316 ret = shadow->system_timestamp + get_nsec_offset(shadow);
317 barrier();
318 } while (version != __get_cpu_var(xen_vcpu)->time.version);
319
320 put_cpu_var(shadow_time);
321 220
221 src = &get_cpu_var(xen_vcpu)->time;
222 ret = pvclock_clocksource_read(src);
223 put_cpu_var(xen_vcpu);
322 return ret; 224 return ret;
323} 225}
324 226
325static void xen_read_wallclock(struct timespec *ts) 227static void xen_read_wallclock(struct timespec *ts)
326{ 228{
327 const struct shared_info *s = HYPERVISOR_shared_info; 229 struct shared_info *s = HYPERVISOR_shared_info;
328 u32 version; 230 struct pvclock_wall_clock *wall_clock = &(s->wc);
329 u64 delta; 231 struct pvclock_vcpu_time_info *vcpu_time;
330 struct timespec now;
331
332 /* get wallclock at system boot */
333 do {
334 version = s->wc_version;
335 rmb(); /* fetch version before time */
336 now.tv_sec = s->wc_sec;
337 now.tv_nsec = s->wc_nsec;
338 rmb(); /* fetch time before checking version */
339 } while ((s->wc_version & 1) | (version ^ s->wc_version));
340
341 delta = xen_clocksource_read(); /* time since system boot */
342 delta += now.tv_sec * (u64)NSEC_PER_SEC + now.tv_nsec;
343
344 now.tv_nsec = do_div(delta, NSEC_PER_SEC);
345 now.tv_sec = delta;
346 232
347 set_normalized_timespec(ts, now.tv_sec, now.tv_nsec); 233 vcpu_time = &get_cpu_var(xen_vcpu)->time;
234 pvclock_read_wallclock(wall_clock, vcpu_time, ts);
235 put_cpu_var(xen_vcpu);
348} 236}
349 237
350unsigned long xen_get_wallclock(void) 238unsigned long xen_get_wallclock(void)
@@ -352,7 +240,6 @@ unsigned long xen_get_wallclock(void)
352 struct timespec ts; 240 struct timespec ts;
353 241
354 xen_read_wallclock(&ts); 242 xen_read_wallclock(&ts);
355
356 return ts.tv_sec; 243 return ts.tv_sec;
357} 244}
358 245
@@ -572,12 +459,23 @@ void xen_setup_cpu_clockevents(void)
572 clockevents_register_device(&__get_cpu_var(xen_clock_events)); 459 clockevents_register_device(&__get_cpu_var(xen_clock_events));
573} 460}
574 461
462void xen_timer_resume(void)
463{
464 int cpu;
465
466 if (xen_clockevent != &xen_vcpuop_clockevent)
467 return;
468
469 for_each_online_cpu(cpu) {
470 if (HYPERVISOR_vcpu_op(VCPUOP_stop_periodic_timer, cpu, NULL))
471 BUG();
472 }
473}
474
575__init void xen_time_init(void) 475__init void xen_time_init(void)
576{ 476{
577 int cpu = smp_processor_id(); 477 int cpu = smp_processor_id();
578 478
579 get_time_values_from_xen();
580
581 clocksource_register(&xen_clocksource); 479 clocksource_register(&xen_clocksource);
582 480
583 if (HYPERVISOR_vcpu_op(VCPUOP_stop_periodic_timer, cpu, NULL) == 0) { 481 if (HYPERVISOR_vcpu_op(VCPUOP_stop_periodic_timer, cpu, NULL) == 0) {
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 288d587ce73c..7c0cf6320a0a 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -7,6 +7,7 @@
7#include <linux/init.h> 7#include <linux/init.h>
8#include <asm/boot.h> 8#include <asm/boot.h>
9#include <xen/interface/elfnote.h> 9#include <xen/interface/elfnote.h>
10#include <asm/xen/interface.h>
10 11
11 __INIT 12 __INIT
12ENTRY(startup_xen) 13ENTRY(startup_xen)
@@ -17,7 +18,7 @@ ENTRY(startup_xen)
17 18
18 __FINIT 19 __FINIT
19 20
20.pushsection .bss.page_aligned 21.pushsection .text
21 .align PAGE_SIZE_asm 22 .align PAGE_SIZE_asm
22ENTRY(hypercall_page) 23ENTRY(hypercall_page)
23 .skip 0x1000 24 .skip 0x1000
@@ -30,11 +31,11 @@ ENTRY(hypercall_page)
30 ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long startup_xen) 31 ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long startup_xen)
31 ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long hypercall_page) 32 ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long hypercall_page)
32 ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz "!writable_page_tables|pae_pgdir_above_4gb") 33 ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz "!writable_page_tables|pae_pgdir_above_4gb")
33#ifdef CONFIG_X86_PAE
34 ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes") 34 ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes")
35#else
36 ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "no")
37#endif
38 ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic") 35 ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic")
36 ELFNOTE(Xen, XEN_ELFNOTE_L1_MFN_VALID,
37 .quad _PAGE_PRESENT; .quad _PAGE_PRESENT)
38 ELFNOTE(Xen, XEN_ELFNOTE_SUSPEND_CANCEL, .long 1)
39 ELFNOTE(Xen, XEN_ELFNOTE_HV_START_LOW, .long __HYPERVISOR_VIRT_START)
39 40
40#endif /*CONFIG_XEN */ 41#endif /*CONFIG_XEN */
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index f1063ae08037..6f4b1045c1c2 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -9,26 +9,35 @@
9extern const char xen_hypervisor_callback[]; 9extern const char xen_hypervisor_callback[];
10extern const char xen_failsafe_callback[]; 10extern const char xen_failsafe_callback[];
11 11
12struct trap_info;
12void xen_copy_trap_info(struct trap_info *traps); 13void xen_copy_trap_info(struct trap_info *traps);
13 14
14DECLARE_PER_CPU(unsigned long, xen_cr3); 15DECLARE_PER_CPU(unsigned long, xen_cr3);
15DECLARE_PER_CPU(unsigned long, xen_current_cr3); 16DECLARE_PER_CPU(unsigned long, xen_current_cr3);
16 17
17extern struct start_info *xen_start_info; 18extern struct start_info *xen_start_info;
19extern struct shared_info xen_dummy_shared_info;
18extern struct shared_info *HYPERVISOR_shared_info; 20extern struct shared_info *HYPERVISOR_shared_info;
19 21
22void xen_setup_mfn_list_list(void);
23void xen_setup_shared_info(void);
24
20char * __init xen_memory_setup(void); 25char * __init xen_memory_setup(void);
21void __init xen_arch_setup(void); 26void __init xen_arch_setup(void);
22void __init xen_init_IRQ(void); 27void __init xen_init_IRQ(void);
23void xen_enable_sysenter(void); 28void xen_enable_sysenter(void);
29void xen_vcpu_restore(void);
30
31void __init xen_build_dynamic_phys_to_machine(void);
24 32
25void xen_setup_timer(int cpu); 33void xen_setup_timer(int cpu);
26void xen_setup_cpu_clockevents(void); 34void xen_setup_cpu_clockevents(void);
27unsigned long xen_cpu_khz(void); 35unsigned long xen_tsc_khz(void);
28void __init xen_time_init(void); 36void __init xen_time_init(void);
29unsigned long xen_get_wallclock(void); 37unsigned long xen_get_wallclock(void);
30int xen_set_wallclock(unsigned long time); 38int xen_set_wallclock(unsigned long time);
31unsigned long long xen_sched_clock(void); 39unsigned long long xen_sched_clock(void);
40void xen_timer_resume(void);
32 41
33irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 42irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
34 43
@@ -46,13 +55,10 @@ void xen_smp_cpus_done(unsigned int max_cpus);
46 55
47void xen_smp_send_stop(void); 56void xen_smp_send_stop(void);
48void xen_smp_send_reschedule(int cpu); 57void xen_smp_send_reschedule(int cpu);
49int xen_smp_call_function (void (*func) (void *info), void *info, int nonatomic, 58void xen_smp_send_call_function_ipi(cpumask_t mask);
50 int wait); 59void xen_smp_send_call_function_single_ipi(int cpu);
51int xen_smp_call_function_single(int cpu, void (*func) (void *info), void *info,
52 int nonatomic, int wait);
53 60
54int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *), 61extern cpumask_t xen_cpu_initialized_map;
55 void *info, int wait);
56 62
57 63
58/* Declare an asm function, along with symbols needed to make it 64/* Declare an asm function, along with symbols needed to make it
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-03 06:17:35 -0400